PV installing tide in front of 25 warranty can be realized?

Polaris solar PV net news: destroyed by flooding of the Yellow River PV power station, typhoon blew down PV power plant in Hainan, Tianjin photovoltaic roof ignition … … With the rapid Ascension of PV installed capacity, for PV power quality problems continued to arise. According to the National Energy Board planned 2014 China PV industry development plan, proposed new installed capacity of 14 GW this year, but about 3 GW to complete in the first half. Installing surge at the end of it in sight, super large-scale PV power plant to be built, its 25 year warranty period can be realized?

Power quality problems can not be ignored

In recent years, large scale construction of PV plants, if widespread quality problems in the future, will lead to a “catastrophic” situation.

“This year, plans to add 14 GW and PV cumulative installed capacity in China before the end of 2012 is only 6.5 GW. “Eagle investment management, investment director Zhang Wei in an interview with reporters,” said State Energy Secretary Wu xinxiong, at this year’s meeting, stressing in the large-scale development of photovoltaic power stations at the same time, never let the quality problems. In fact, for photovoltaic products of quality, second half of last year, the National Energy Board and the CNCA had specialized organizations, research groups, gathering place by visiting PV products and testing organizations, quality situation investigation of photovoltaic products and found that product quality issues and a lot of it. ”

According to third-party testing and certification organization Beijing Jian Heng certified centers officials said problems of PV at present mainly in equipment, plant design, plant construction and plant operation and maintenance, and so on. By testing the more than more than 400 plants found that PV modules there are hot spots, cracked and power problems. A case study of attenuation, 11 field test last year at the Centre of a large-scale ground operation around 1 component, taking into account the uncertainty of the equipment found 50% about components Attenuation between 5%~10%, 30% about components Attenuation over 10%, 8% of component degradation has more than 20%. This means that component generally promise 25 years only decay 20% quality assurance, some products run only 1 year is approaching even beyond the bottom line.

Xie Bingxin, Deputy Director of the Centre, told reporters that large scale construction of PV plants in recent years, a wide range of quality problems in the future, will lead to a “catastrophic” situation; the other current PV quality risk management also contributed to the financial and insurance institutions are afraid to enter the most direct cause of the photovoltaic industry.

“The quality of our industry and what it means for investors? “DuPont photovoltaic materials with Fu Bo, Marketing Manager, told reporters,” If the component is too poor in quality, would lead to its decay accelerated and shortened life expectancy. To China West area 20 MW around of ground PV station to calculation, if component life can reached 25, so investment of internal proceeds rate can reached even above 11%; if component life only 10 years, so proceeds rate will dropped to 4.8%; if component quality appeared problem, while power attenuation accelerated, from normal of annually 0.8% increased to 5%, so proceeds rate on only left 2%. Thus, the component’s quality has much effect on return on investment. ”

Policy calls for strengthening the testing and certification

Policies in place and there is no clear price subsidies force linked with certification of photovoltaic products, but reflect industry authorities focus on strengthening quality control of thought.

Last July, the State Council issued the opinions on promoting the healthy development of the photovoltaic industry, puts forward the key products for photovoltaic testing and certification should be strengthened, without the testing and certification of the product cannot enter the market. Zhang Wei said that because PV products standards are still not very sound, and market perception of certification results are not high enough, so some manufacturers are not according to the standard production, without certification, and power plant developers at the time of purchase is not concerned about whether to buy products through quality certification. “Especially at the end of the period of installing, delivery very tight, developers will be able to buy some components into the power station installed components to consider quality issues at all. “Zhang Wei said.

For, National Energy Council in recently released of on further strengthened PV station construction and run management work of notification in the pointed out that, to strengthened engineering construction quality management, grid run of PV station project should used by national recognize JISC approved and the certification institutions certification of PV battery pieces, and inverse variable device, key equipment; PV station engineering design and units should strictly Executive national standard (containing industry standard) and engineering specification, project units should according to related management provides for project completed acceptance, And will submit the completion report to provincial energy departments, national energy Administration Agency, reported to national PV technology management focal point. The circular stressed that the completion report is a list of projects included in the National Development Fund for renewable energy subsidies a precondition. Meanwhile, the National Energy Board, in conjunction with relevant departments timely to organize PV engineering quality inspection and test results disclosed in the proper manner.

Earlier, before the National Energy Board and CNCA jointly issued the opinions on strengthening the PV product testing and certification work, the “connected to the public power grid PV power generation projects and enjoy government subsidies at all levels, non-grid-connected PV power generation projects, subject to approval by CNCA certification bodies the certification of PV products.”

“The document does not explicitly PV electricity price subsidies force linked with certification of photovoltaic products. “For thinking” document reflects the PV industry in national energy Board next focus on strengthening quality supervision, which can be seen behind the rapid development of PV industry in departments in charge of industry have realized that hidden. ”

Utility quality should be more controlled

To ensure that the photovoltaic power plants run safely and effectively for more than 25 years, component quality, initial design, construction and subsequent operation and maintenance are important.

“Because the component in the overall plant occupies the highest share of the cost, so the power station if there is a problem, we always habitually attributed to components. “Zhang said,” actually, make sure PV power plants run safely and effectively for more than 25 years, preliminary design, construction and subsequent operation and maintenance are important. ”

As PV station EPC (engineering total contractor), in the material days China International PV engineering technology limited Deputy General Manager Cui Jian think, relative traditional of fire power and hydro-electric power for, PV station EPC of technology difficulty and technology threshold does not high, but from design of links view, now China for whole PV station of design and no set full of executable of standard, more is industry nature of guide views. Currently engaged in the mainstream PV Design Institute, designed more to be from the perspective of traditional electricity industry, but to make the EPC business bigger and stronger, is still necessary for the PV industry standard now available in a number of different integration. “In case of lightning protection design, for example, present a wide variety of traditional methods, but for the most part do not apply to photovoltaic power plant, distributed PV. “Cui Jian says,” a lot of design of photovoltaic power plant is a traditional power station does not offer, and the urgent need for a comprehensive, specialized standards. ”

Not only design and inspection sectors have developed the same problem. “Plant acceptance, ministries, provincial and municipal sources of energy have the acceptance of PV system, but where there is fighting between each other. “Cui Jian says,” for example, brackets, in the midst of our own projects, we use the algorithm on stress calculation and stability calculation of bracket, just like other EPC partners with totally different, this is because there is no uniform standard. “He said, in the traditional industries, engineering cost links already have national standards, Earthwork, digging deep, throughput, etc, but there is no mandatory standard for PV, is capable of doing work of” casual “, were built in the Western region of power quality problems in concrete construction and construction has begun to appear. “Of course there are a lot of very good quality of photovoltaic plant, for instance, initially the pastoral area lighting project, worked more than 30 years, decaying surfaces and even superior to the current theoretical value. “Cui Jian said.

China PV application environment is far worse than that in Europe, Western anti-ultraviolet radiation, prevent wind East to consider salt spray corrosion, install PV on the roof also the thermal and fire performance. “PV power plants for more than 25 years in the life cycle of good quality control, we need to be monitored from beginning to end. “Fu Bo, that” investors for photovoltaic projects, program evaluation which is by no means want to buy new components end up, on power plant design, installation, incorporation, operation and maintenance, to obtain information, understand the key performance indicators, which reduce the investment risk the most critical point is that recognized in the Bill of materials is already verify the material. ”

In addition, Fu Bo, recommends, in the posterior segment of the PV system lifecycle as a whole, according to component quality checks at regular intervals, so that you not only can see the components within the system in the past about how much electricity can also decay curve by understanding its future life, plant assets more transparent.

“All in all, photovoltaic power plant in the quality management process throughout the life cycle of multi-point control, from the environment to integrate climate applications of materials from which to choose, during the process of manufacture, installation, operation and maintenance of quality control, which includes many. “Fu Bo, stressed that” the biggest problem right now is, because different types of components used in a variety of environments, evaluation criteria are actually being integrated in life expectancy, so when Bill of materials selection, and more choices in that climate should be validated material has long been in practice. ”

Original title: PV installing quality concerns

SPI Solar focus on distributed power generation market in China

Polaris solar PV net news: as the developer SPISolar focus Gets a bigger share of the distributed generation market in China, the company has reached an agreement to acquire a major Chinese manufacturer of roof-mounted.

The company will provide Shanghai an all-equity transaction Yazi new roofing system company to pay 330 million Yuan (54 million US dollars).

Yazi roofing is a manufacturer, owns a number of patents and has been contributing to photovoltaic roof standard in China.

SPI Peng Xiaofeng, Chairman, said: “we are pleased to announce that this framework agreement with Yazi roofing. ”

He added: “we aim to take advantage of our high-quality, low-cost development services, and Yazi roofing in the roofing business leadership, become the leading provider of distributed power generation enterprise in China. Yazi roofing in East China, one of the fastest-growing distributed generation market advantages, of this particularly promising, will improve our market share. ”

China 2014 14GW of solar deployment quotas aimed at 8GW through distributed generation project. – Despite some expectations of a slow down in the first half – but lower than expected productivity, and said officials worried. After they announced to cut red tape to promote distributed generation market.

SPI Solar solar power project of a new dimension through its subsidiary completed the acquisition.

Original title: SPI Solar focus on distributed power generation market in China

Zibo PV loan process has been “open” may apply directly

Polaris solar PV net news: for a majority of Zibo users wishing to install photovoltaic system, funding this “stumbling block” finally had a solution. On October 29, the reporter from aligned business bank retail finance loan Center learned that current processes on PV loan has been “opened”, users of free funds directly to the Bank for a loan, more efficient use of clean energy.

Install photovoltaic enough money?

As only one-stop provider of photovoltaic power generation in Zibo city, Shandong Tang Tang Yong, General Manager of the new energy engineering referred to PV promotion course deep sigh. “Less pollution, photovoltaic solar energy usage is high, could be reclaimed by the State grid and, from national policy point of view, the photovoltaic industry is subject to strong support in recent years, have a very good market prospects. ”

However, regrettable is that due to the high cost of initial installation, and banks, Zibo city, sources of credit have not been able to get through, some effect on user’s use. Tang Yong said such contradictory situations and photovoltaic development mature Germany compared to more visible. It is understood that Germany’s photovoltaic sources of credit have been very mature, and the loan interest rate is only 3.75%.

“Aware of the obstacles, we are always looking for cooperative banks. “Said Tang Yong, consult all the parties and the consultations, Qi commercial bank loan Center and finally to the Tang dynasty and the general user dished out the” olive branch “.

With “quick loans” loans on track

In fact, ultimately align business Bank and Tang is not a coincidence. In the interview, Qi Zi Yuan Bank’s Retail Banking Department Loan Center Manager, said from the beginning of the year, they developed a team specifically for consumer loan credit “quick loans” to cover all aspects of consumer, PV power station provides electricity for home users, naturally, “quick loans” range.

“And after the Tang dynasty teamed, we have accepted five or six PV type loan. “It is understood that although Tang in the early difficulties finding cooperative banks, but once opened the crossings, loans are easier. Zi Yuan told reporters that the loan demand users need to carry relevant material, such as purchasing contracts of PV products, receipt of payment, personal documents, applied to align Bank Loan Center, can house bank account manager to your door credit services. “In this regard we have been strictly enforced ‘8 little speed ‘ service concept, and as long as the loan approved, lenders are very fast, can arrive the next day. ”

“Quick loans” with the help of numerous PV finally makes it easier for users to use environmentally-friendly clean energy, from a long-term point of view, also saved some household expenses.

Clean energy trends

In addition to the many home users, millions of large electricity companies interest in PV power plant.

According to Tang Yong, at present, seven or eight companies have installed grid-connected successfully in Zibo city, throughout Zhou, linzi, zichuan district. Zichuan district of enterprise is the option to install a set of photovoltaic carport, clean energy is more flexible.

Moreover, as the market gradually expanded, the user on the Tang side also put forward higher requirements. “Recently, enterprises require a transparent solar panel installation, our schedule is from other sources, to maximize meet customer needs. ”

“Quick loans” and efforts of Tang, promotion of clean energy progress has been faster in Zibo city, Tang will continue to explore more sources of funds in the future to help users broaden loan, to provide users with more convenient.

Original title: Zibo PV loan process has been “open” may apply directly

Polaris solar PV NET weekly Hots collection (10.24-10.30)

Polaris solar PV net news: policy

1. the key summary and interpretation of the photovoltaic projects for poverty alleviation (with list)

On October 11, the National Energy Board Joint poverty alleviation Office of the State Council jointly issued a notice on implementation of PV projects for poverty alleviation programme of work. Inform key summary and interpretation as follows:

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2. on photovoltaic power project file and the information online, such as completing the notice of

Pursuant to the National Energy Board comprehensive statistical information on the strengthening of the Division for photovoltaic power generation project and filing of notice of (the country’s comprehensive new “2014”, No. 389, hereinafter referred to as the notice) and other relevant provisions, and doing the building of photovoltaic power generation project and relevant online information, such as statistics and filing. Related matters are hereby notified as follows:

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3. PV policy market: 2013-2014 national and local policies

In July 2013, the State Council issued supporting the PV industry development policy, National Energy Board, local governments at all levels have actively formulate supporting policies and measures, will now 2013-2014 the National Energy Board, local development and Reform Commission released policy to promote the orderly development of the photovoltaic industry Combs below, reference for industry policy.

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4. the Guangzhou Development Planning Commission on issuing notice management method of distributed solar power projects

To actively promote photovoltaic applications, accelerate the construction of rooftop PV power generation projects, to further standardize the photovoltaic power generation project management, Guangzhou Development Planning Commission administrative measures on issuance of distributed solar power projects, as follows:

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5. the Energy Council on regulating the PV power plant investment and development order notifications

Under the rapidly expanding PV market, and in project investment development cycle there have been unfair resource allocation, lack of management and speculative profits in varying degrees, caused adverse effects to the PV power station construction. To strengthen the PV power plant project management, put an end to speculation in investment and development, keep the PV power station construction norms in order to, relevant management requirements are hereby notified as follows:

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1. PV untied loans

Along with the PV project in full swing, stronger product prices across the PV industry chain, broker it is expected that this trend will continue. Meanwhile, some banks have started actively preparing for the PV project loans. For example, China Merchants Bank has now put “PV” as “moderately entering the industry.”

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2. the first of the PV industry of China Merchants Bank credit guidelines

A few days ago, China Merchants Bank Bank credit risk management Department issued the credit guidelines of the photovoltaic industry, expressed that the banks involvement in the photovoltaic industry already has more room and prospect. File view PV industry as China Merchants Bank moderately entering the industry.

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3.6 provincial poverty in national PV pilot Bank will carry out low interest loans

National Energy Board, the poverty alleviation Office of the State Council recently issued a notice to implement photovoltaic projects for poverty alleviation programmes, plans to use 6 years to develop photovoltaic projects for poverty alleviation. Anhui, Shanxi, Hebei, Gansu, Qinghai, Ningxia, 30 counties of the first photovoltaic pilot project.

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4. Energy Board Lian Fate urgent files to discourage speculation PV development costs are expected to reduce

Website of the National Energy Board issued on standardizing the order notice photovoltaic power plant investment and development (hereinafter “the notice”). In official documents, but also marked “urgent”. It was released on October 12, the same as with “file” investment in new power projects on development of the special supervision order after notice, officials once again clearly emphasised the need to improve PV record management to stop speculation in the photovoltaic power plant investment in the development of.

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5. local business monthly surprise approval of 9000 tons of polycrystalline silicon “trapping” policies or failure

In September, the United States exports to China by 1698 metric tons of solar grade silicon, and all through the way of processing trade to evade payment of anti-dumping duties against China. Association of colored Silicon branch, according to a new report released September 2014 China poly silicon 9942 tonnes imports (August-8373 tons, in July as 8936 tons), increased 18.7% per cent, another record high!

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1. Department of energy ordered can put an end to the PV of “flagging” scalping?

For those who still hold a piece of paper “flagging” someone must regret not having it out before October. In October because the National Energy Board has made two in a row, to curb the PV industry in “flagging” scalping queer. Energy administration cracked down, could put an end to such a phenomenon?

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2. LDK LDK: restructuring, change may come again?

On August 29, the LDK LDK announced that its founder and former Chairman of LDK with immediate effect resigned from the posts of Chairman and Director, current President and CEO of XING Xue Tong served as interim Chairman. Tongxingxue burden can lead the LDK LDK were paved to start all over again? Debt restructuring is to the last straw that has arisen now, or the key moments in a life-saving cure?

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3. how much Japanese investors lose money?

Super Japanese corporate reorganization management person in charge said, current company claims there are about 4.5 billion yuan, of which 660 million yuan of property security, tax creditor 21.81 million Yuan, the common claims of 3.61 billion yuan. Among them, the ordinary creditors meeting 2,115, 1921 votes over a network, agreed to the draft plan of 2,082, representing nearly 3.2 billion yuan.

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4. photovoltaic technology battle: CIGS can save the film?

In Han can holding group limited Directors Council President and CEO, and Federation of industry and Commerce Deputy President, and Federation of industry and Commerce new energy Chamber of Commerce President, and “China richest man” Li Hejun of once statement in the, the domestic film solar of chief spokesman, no again put crystal silicon and film compared to black and white and LCD TV of relationship, no again mention film on crystal silicon of alternative sex, but stressed two species technology route in quite long time within will common development.

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5. PV issues frequent investments required quality in advance

Groping in the gradual improvement of domestic photovoltaic policy, invest in PV business environment are becoming increasingly mature, domestic photovoltaic power stations of a new upsurge of investment climate. In order to ensure that their return on investment and, therefore, more and more investors to look at the choices to component quality, and this is contributing to the domestic photovoltaic industry development to the rational.

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1. chaori solar restructuring programme through the day bonds can be paid

October 23, 2:30 P.M., ultra Sun second creditors meeting held in Shanghai Fengxian district people’s Court, Conference, Suri Sun’s restructuring plan was adopted. Under the agreement, Suri reorganization plan through the Sun, is a prerequisite for 11 Suri debts are paid off.

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2.2014 top 500 private enterprises in China PV “pedigree” analysis (figure)

On September 2, 2014, the China enterprises Federation and China entrepreneurs Association day 2014 list of the top 500 Chinese enterprises. After grooming, in the list of the top 500 enterprises in China, involving only Tong Wei, in PV industry chint two “cousins”, Ying Li, apt and other “pure-blood” PV enterprises without the lists, can be described as bleak.

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3. the richest man in new energy resistance LDK bankruptcy asset-liability ratio of 105.6%

According to the latest figures, first half of 2014, LDK Solar a loss of 685 million Yuan, a net loss of 562 million dollars. In 2013, the LDK lost $ 1.339 billion dollars, compared to 4.341 billion yuan in 2012, and losses have narrowed considerably, and the asset-liability ratio was at a record high. At the end of June 2014, LDK-1.341 billion yuan on equity, asset-liability ratio as high as 105.6%.

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4. grab the SFC “reaches”: PV industry intermediaries borrow fined for insider profit

Recently, the Commission has published two sets of administrative punishment decision letter (hereinafter the decision), “to inflate prices” as well as “insider trading” and other investors is no stranger to the word resurfaced.

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5. chuantou energy executives continuously probed troubled subsidiaries

In Sichuan’s biggest energy company Sichuan chuantou energy investment company limited (hereinafter “chuantou energy”) issued a notice to admit Xie Hongxian, Deputy General Manager of the company for violating investigation. Worth noting is that it is almost two months, and chuantou energy in second place have been investigated by senior management. On August 20, and chuantou energy Vice President and General Manager Zhao Desheng for a serious violation by the discipline Inspection Department to investigate.

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6. foster joint-Thai joint venture to set up photovoltaic power generation company

Late on October 29, foster said, in order to meet the needs of business development, company and Zhejiang zhengtai new energy development co in Linan city, Zhejiang Province, jointly invested in Linan Tate PV power plant (tentative name), a joint venture company with registered capital of 50 million Yuan, which foster their own money invested 10 million Yuan, to 20% per cent.

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1.2014 photovoltaic industry, “local tyrants” list (figure)

Latest in 2014 the hurun list, 47-year old Li Hejun fortune was again raging brush, an increase of nearly 9 times, with 125 billion into the top three for the first time, this year’s wealth biggest gains entrepreneurs. He didn’t last long, because Ma’s wealth soared, Forbes also again updated its list in a timely manner. This time, Li Hejun ranking unchanged, but compared to previous Forbes $ 10.3 billion of wealth increases, 79.56 billion yuan.

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2. the LDK, “the second pioneering work”

In prospect amid widespread worries about LDK reorganization, founder of LDK but–SPI LDK LDK subsidiary foreign shows, who are working hard to make a comeback. The past two days, SPI series PV project announced the signing of the deal, including the largest PV project development companies in China, which ranks one of China’s largest photovoltaic development company.

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3. NaN cunhui Zhi Dou Hamburg Summit

Nan cunhui, Chairman of chint group involved in the Hamburg Summit “EU-China trade relations in the future” forum topics for discussion and made a statement, and called on the central hand. When European guests Chinese products have an impact on European trade problem, said Nan cunhui, a case study of solar energy photovoltaic industry, China Solar Panel production accounted for 70% of the world. However, the production of electrical equipment the vast majority of imports from Europe, the Chinese use the equipment left their energy consumption in the production process to produce energy saving and environmental protection products to Europe, to the world, for blue skies and white clouds in Europe, energy conservation and emissions reduction has made great contributions.

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4.2014 Forbes China rich list released the photovoltaic industry bigwigs have several?

October 28, morning news, Chinese 2014 was released today by the Forbes China rich list. In this year’s Forbes China rich list, Chinese billionaires (billionaires) numbers rose substantially, increased from 168 a year ago to this year’s 242. This year a total of 9 guests from the photovoltaic industry or related to photovoltaic business entrepreneurs on 2014 Forbes China rich list. Here, we yiyilai look at the richest 9.

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5. Cai Jibo: PV quality is fundamental to protect its gains

The domestic photovoltaic industry is currently facing a very big problem, is if it has reached the plant’s quality as a basis for safeguarding the income concept. Investors may focus more on power plant safety, quality, yield, including many owners are more concerned about the safety of the roof, fire prevention, building the reliability of equipment operation and so on.

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United States tax effect makes Taiwan photovoltaic cell companies have plans to set up factories overseas

Polaris solar PV net news: sources, in order to avoid United States adverse effects of anti-dumping tariffs, a Taiwan manufacturer of crystalline silicon solar cells project will be located in Taiwan’s annual capacity of 500MWp migration of production to Thailand. However, this person has not disclosed the specific company.

Sources pointed out that the manufacturers are expected to benefit from Thailand investment incentives introduced by the Government. Moved to Thailand after the market, the plant’s annual production capacity is likely to increase to 1GWp.

At present, only rongsheng science and technology energy (SolartechEnergy) and Tai Chi energy (TainergyTech), two Taiwan solar cell makers has been confirmed plans to set up plants overseas, the sources pointed out.

Rongsheng science and technology energy and Malaysia TekSengHoldingsBhd form strategic alliances, joint injection of 100 million Malaysia Ringgit (US $ 31.3 million) in TSSolartechSdnBhd an existing site to set up two solar cell production line.

Tai Chi energy plan with Taiwan equipment maker KenmecMechanicalEngineering (parent company of Chi energy) Viet Nam subsidiaries to cooperate, combined with a $ 10.8 million in Viet Nam established a solar cell factory.

Original title: United States tax effect makes Taiwan photovoltaic cell companies have plans to set up factories overseas

Thermal selection depends primarily on the inverter power

Polaris solar PV net news: with the PV inverter dimensions shrink and stand-alone power, increasing demand for the thermal design. Designers must take into account inverter cooling system cooling effect, protection, installation, serviceability, as well as the economic price to pay. Among them, the single power, is an important basis for designing cooling solutions.

Inverter cooling technologies including natural cooling, forced air cooling, liquid cooling and phase change cooling and other forms. Working principle and features in all its forms, as shown in table 1.

Studies have shown that efficiency forced air cooling heat sink is cooled for 10~20 times, more efficient cooling there is liquid-cooled. From the structural complexity and the ease of implementation, forced-air cooling system liquid cooling system is simple, easy to implement, and high reliability. Thus, preferred method of forced air cooling in the power industry, followed by natural cooling, cooling such as liquid cooling.

Figure 1 heat dissipation and heat flux density in (Note: pictures from United States University of Nevada Professor YunusA.Cengel of the Heat and Mass Transfer:Fundamentals and Applications, a book)

Heat flux density is the unit of time, through the heat per unit cross-sectional area of the object. As shown in Figure 1, in the same within the allowed temperature rise, larger heat flux density of the system, the heat dissipation is required harsh.

In General, electronic components within the permissible operating temperature as high as mesophile temperature range. At temperature of 60 ° c upper limit allowed under the conditions, be able to absorb the maximum heat flow density is cooled by natural 0.05W/cm2. When the heat flux is greater than 0.05W/cm2, and by some special means, but managed to increase the cooling effect of natural cooling, but need to sacrifice performance, or economic life of devices such as price. When the heat flux density is greater than 0.05W/cm2, forced air cooling, satisfactory performance and economy. When the heat flux density is increased, you will need to select other cooling such as liquid cooling. For power are in several MW of large wind converter, thermal way are is selection liquid cold; power in 100KW to 1MW Zhijian of concentrated type PV inverse variable device, thermal way for forced wind cold; and power from thousands of w to tens of w of group series type PV inverse variable device, is according to single power of grew up to big, thermal design also from natural thermal upgrade to forced wind cold thermal.

Figure 2 string type PV inverter cooling options

Theoretical analysis into an actual product in the cooling solution on the choice, science Steering Group series PV inverter cooling solutions in product design. As shown in Figure 2, when power is less than 20kW, can be realized by natural cooling products match the optimal size, weight and overall performance when power is greater than 25kW, large heat flux, forced air cooling which is more economical, efficient and practical means of as power 20kW to 25kW, natural cooling and forced air-cooling integrated cost-effective. Different power inverter on the market used in heat dissipation as shown in table 2.

Table 2 different power inverter used in cooling system

Summary: thermal technologies including natural cooling, forced air cooling, liquid cooling and phase change cooling and other forms, based primarily on the selection of inverter power.

Series PV inverters in series work in more than 70 ℃ roofing outdoor environment, System cooling under high temperature environment impact on product performance and service life is particularly important. Below 20kW of power inverters, can use natural cooling method and above 25kW power inverters, using forced-air cooling is more appropriate.

“Thirteen-Five” the energy roadmap: an important energy strategy and impact analysis

Polaris solar PV net news: energy strategies concerning future energy development, layout, and affects energy investment decisions and management operation. At present, China is formulating energy “Thirteen-Five” Planning (including master planning, special planning and regional planning), strategic action plan for energy development (2014-2020), energy security, development, energy production and consumption revolution strategy (2015-2020).

From the perspective of Administration recently disclosed information, strategies for future energy development and reform-oriented basic clear – total energy consumption control, clean and efficient use of coal, and vigorously develop clean energy, and energy is the main content of the reform.

A, the total energy consumption control

At present, China’s energy strategy from the supply, and began to shift to control energy consumption. This means that open and energy production and consumption will be under control, control means compulsory administrative measures can be taken, also can be achieved by raising energy prices and reducing subsidies.

Looking back at the past decade’s energy consumption path, “Eleven-Five” during China’s total energy consumption in 2005 from 2.36 billion tons of standard coal, 3.25 billion tonnes per cent in 2010, with an average annual growth rate of 6.6%. According to energy “Twelve-Five” planned expectations, total energy consumption in 2015 at 4 billion tons of standard coal. Slowdown in the economic downturn, energy consumption situations, this goal is achievable.

Agency calculates that if under unchanged policy environment, in accordance with past economic development measure, in 2020, China’s total energy consumption will reach about 5.4 billion tons of standard coal, in 2030 will be close to 7 billion tons of standard coal. Obviously this kind of growth is unsustainable, ecological environment and the international environment will come under great pressure.

Control energy consumption is controlled mainly coal. Long-term target in the national total coal consumption will be developed, the implementation of goal responsibility management. Has made clear is that in 2017, the Beijing-Tianjin-Hebei, Yangtze River Delta and Pearl River Delta region and strive to realize the total coal consumption growth, coal down to 65% per cent of total energy consumption in 2020, and strive to make coal declined to 62% per cent of primary energy consumption, coal consumption in thermal coal accounted for above 60%.

Control energy consumption directly affects the future energy project development and approval. Direct expression, development of high energy-consuming industries such as iron and steel, cement, non-ferrous will be subdued; the Bohai, Yangtze River Delta, Pearl River Delta and the new (extension) coal-fired units would be strictly controlled rapid increase in coal production will be constrained.

Second, energy production continues to move West

Is still the main positions of our energy production in the Western region. According to the national “five two” concept, future Erdos, Southwest, Northeast, Shanxi, Xinjiang, five major energy bases, nuclear power and offshore energy development with 2.

Coal development “stable control in Eastern, Central, Western development” the General requirements, still dominated by 14 major coal bases. Priority development of Inner Mongolia, huanglong and bases in northern Shaanxi, consolidating the development of shendong, ningdong, Shanxi bases, limiting development in Eastern, Western Shandong, Henan, Hebei and Huaibei base, optimize the development base in Xinjiang. Central region (North-East) to maintain reasonable strength, according to “take a set” mode, building resource-exhausted mine production continued moderately project.

Oil and gas development is to improve onshore oil production, consolidation of old oil fields, develop new fields and increase the intensity of low grade resource development and utilization. While developing shale gas and offshore oil and gas exploration and development, “World War II”. From focusing on Development Watch, addition to the exploitation of maritime resources, and Tarim, Changqing, Qaidam and Sichuan, Chongqing, and other Central and Western regions is the focus of future exploration and development.

Third, pay attention to the clean and efficient development and utilization of coal

It cannot be denied that reason based on resource endowments, and coal as the main energy source of the future status will not change. Clean and efficient use of coal will receive greater attention, national energy administration official even suggested that “to promoting the clean and efficient use of coal and the development of clean energy in the equally important position.”

The main directions of power is a clean and efficient use of coal. According to the national action plan for coal electric energy-saving upgrades, new coal-fired units power supply coal consumption of less than 300 grams of standard coal per kilowatt hour, pollutant emissions close to the levels of gas emissions in 2020, active duty unit 600,000-kilowatt and above power supply coal consumption dropped to 300 grams of standard coal per kilowatt hour. In recent years, generating corporate environmental pressures continue to overweight, environmentally friendly inputs in the policy under the pressure of having to increase. Such as supercritical circulating fluidized bed of power generation, efficient and clean power generation technologies will also be promoted and supported.

In addition, modern coal chemical industry is one of the clean use of coal, and coal fuel to feedstock transitional. Be limited by constraints such as environmental protection, water resources, the State remains cautious on the development of coal chemical industry, further limited by modern coal chemical technology, coal chemical industry commercialization and large-scale development is expected in the short term will not appear, as strategic complements and technical reserves, still dominated by robust demonstration project.

Four, hydro, nuclear, wind, solar, etc will still be developing

Under the goal of non-fossil energy accounted for more than 20%, energy production and consumption, “green” is expected to speed up the process.

According to the relevant planning information 2020 strives to hydroelectric installed capacity of around 350 million kW. 2020 years ago developed Yalong, dadu and jinsha, Lancang River, after 2020 focuses on the development of nujiang and Yarlung zangbo River.

According to adhere to both centralized and distributed, centralized sent and eliminate the principle of combining in situ, in 2020, wind power and photovoltaic power installed capacity of more than 200 million and 100 million-kilowatt, respectively. Electricity feed-in tariff of wind power price and coal, photovoltaic and grid sales price.

It can be measured, by 2020, wind power installed capacity has added an average around 20 million-kilowatt, PV installed capacity annual average around 15 million-kilowatt. Despite the desert wind, abandon light pressure, but from the perspective of resource characteristics, the “three North” area is still the main positions of future wind power, photovoltaic power plant.

As the size increases, the future clean energy not only attaches importance to the increase in installed capacity, grid-connected and focused on the improvement of absorptive capacity. Wind, abandon light, to reduce disposable water problems, power supply, power grids and construction will be among the future attention, especially trans-regional power grid construction investment is still the focus, reverse distribution in an integrated energy production and consumption.

Although domestic nuclear power project approval has not been lifted, but its development is indispensable. In accordance with the relevant plan, run by 2020 nuclear power installed capacity reached 58 million-kilowatt, under construction size of 30 million-kilowatt, but only if using the highest possible international safety standard, to ensure safety. It seems that, a unit of nuclear power installed capacity of wind power solar energy equivalent to nearly 4 unit nuclear power installed capacity less than 10 million-kilowatt of power system installed capacity increased by about 55 million-kilowatt, total system cost increase of 589 billion yuan.

Five, energy reform focused on oil and gas and electricity sectors

At present, our energy system there is a natural monopoly and administrative monopoly issues, competition in the market is not sufficient. In terms of energy management, the Government controls on the prices of oil, natural gas, electric power, there are some, loss of role of markets in allocating resources, resource products price distortions.

According to energy production and consumption revolution requires, restore energy commodity property, build an effective competitive market structures and market systems, formed mainly by the market mechanism to determine the price of energy, change the way government energy regulation, establish and improve the energy system of the rule of law.

Future energy price reform, the reform of the monopoly in the field of energy, energy market liberalization and the transformation of government functions will be the focus of the institutional revolution. In the energy industry, electric power and oil and gas issues more, is expected to be the focus of a new round of institutional revolutionary field. Priority need to focus on access to oil and gas mineral rights reforms and private capital to enter the oil and gas sector reform; power grid, oil and gas pipeline construction and operation system reform; natural gas and electricity market reform.

In terms of government regulation, is expected to focus on the reform in the public approval process, changing the way of examination and approval, and restrain public power, getting prior approval for supervision and services and so on.

Original title: “Thirteen-Five” energy road map: China’s energy strategy and impact analysis

Cai Jibo: PV quality is fundamental to protect its gains

Polaris solar PV net news: from upstream of the photovoltaic industry since the excess capacity in the manufacturing side suffered difficulties, many manufacturing companies are increasingly shifting to lower station-side, especially production component of the listed company, involved in the photovoltaic industry are flocking to the PV power plant construction projects. However, starting from 2013, the entire industry through “cold winter” entered a period of recovery, companies restored to expand capacity. PV is one of the reasons of overcapacity, downstream power station has not yet been completed, but has accumulated excess inventories in the upper reaches. Judging from the current situation, manufacture end and power plant end entered a trend of steady development.

Jiangsu sumec group company (hereinafter “sumec”) beginning in 2006 entered the photovoltaic field, its main activities include shipbuilding, power and mechanical engineering, etc. After the production of PV modules by environmental low impact, sumec begun to extend the industry consolidated.

According to statistics, in 2013, sumec scale new energy business revenue of 1.7 billion yuan, year 2012 for 25% growth. Jiangsu sumec Group President Cai Jibo has publicly said that is sumec new energy business for the next three years of rapid growth.

Recently, this reporter Jiangsu sumec Group on the present situation and the future development of the new energy business, did a feature story on the Cai Jibo.

Reporter: on September 19, the Jiangsu sumec Group Japan Branch in Japan established in Tokyo, which means that sumec new energy business in Asian markets other than China, priority allocation of core resources to Japan. So, sumec group overseas solar markets at present is how to layout?

Cai Jibo: layout of our overseas market, in fact, is carried out according to the photovoltaic market demand because the market has been changing, from the most developed markets in Europe into the United States, we in Germany and the United Kingdom and the United States all have projects. And now to the Asian market, the first thing we see is Japan. In fact, a few years ago, Hui LUN sumec group solar energy (“Jiangsu Hui LUN solar technology Ltd”) has been Japan’s renewable energy market plan and launched a series of business plans, including solar energy equipment sales, service, and General Contracting services for renewable energy power station. Japanese environmental awareness is very strong, so for China in renewable energy products are concerned, it is a hungry market. Our company also put Japan viewed as most potential market.

Although Japan is the PV industry’s emerging markets, but their network configuration, the business environment is very mature, have the conditions for developing PV. Now Cuba is said to have also built two 40 MW of PV power plant, their adequate resources condition, but Cuba’s electricity grid is not yet perfect in fact, failed to support the photovoltaic market, they may be more suitable for the micro-grid off-grid and renewable energy use.

Reporter: in the overall manufacturing enterprises to downstream hydropower development in circumstances of the transformation, sumec has in the past two years has also invested in a number of power stations, then end with power of now sumec ratio is what happens at the end of it?

Cai Jibo: our plans and construction scale in domestic matches the company’s production capacity, which means that meet the needs of domestic power plants we manufacture. But if overseas markets, demand will exceed capacity of power station components in General. PV module overcapacity in previous years an entire industry into crisis, so we don’t want to do the manufacturing end too big now, and it is our consistent strategy.

Reporter: sumec-built power plant planning now what?

Cai Jibo: sumec over plans to build more than 300 megawatt power plant in the country this year, this is a real number. Earlier, there are many companies that want to build several GW, but virtually impossible to attain. This market is mainly through competition, flagging this year is more difficult and, in fact, a lot of companies got the flagging is not necessarily built power station. Our incorporation is expected to reach more than 300 megawatts this year.

For power stations, most of us still sells, its probably just dozens of megawatts. Key is to look at our whole capital matching, well-funded can hold much more, because the power plant is a very good asset. With proceeds of the company’s PV power plant construction, the product supply revenues accounted for 8% and development 15%, operating profit 35%, investment and transfer income accounted for more than 40%.

In addition, the companies in this industry to make breakthroughs in new materials, new technologies, including energy storage technology. Earlier this year, we have set up a new energy research Academy, specialized input sumec new energy product research and development. Critical equipment quality to a great extent determines the quality of power through these innovations, our design, layout of hydropower station under the same conditions of cost, enhancing 2%-5% capacity, this means that the plant’s power generation costs can be reduced by 3%-5%.

Reporter: September PV new deal, national force push again distributed photovoltaic projects, sumec distributed project layout situation?

Cai Jibo: it could be argued, then distributed projects is the direction of our future development of the company, is also being pushed by some. Distributed project investment in human resources are more important than terrestrial power station and refining operations. Now we have 100 MW of distributed project in Hefei, in addition to the Huaian, chuzhou, Dongtai, also has projects under construction.

Reporter: after the new deal down, including “spontaneous full Internet access, personal use, resale, encouraging asset securitisation”, several measures, is believed to help distributed PV financing problem, how do you think about it?

Cai Jibo: these can certainly play a positive role, but I think the industry’s understanding of these measures may take a little time, especially financial institutions need time to digest such a policy. Actually even PV after so many years of development, but domestic financial institutions still don’t have enough confidence, it is doing enough to finance innovation in our country. Banks hope to use companies as collateral, but PV enterprises should rely on its power plant stable earnings as collateral to obtain financing. Assets of the parent company are not unlimited, hard to use this to both plant resource mortgage, also placing greater burdens on business.

Reporter: for the PV industry, sumec-what’s next challenge? How do I adjust?

Cai Jibo: the domestic photovoltaic industry is currently facing a very big problem, is if it has reached the plant’s quality as a basis for safeguarding the income concept. Investors may focus more on power plant safety, quality, yield, including many owners are more concerned about the safety of the roof, fire prevention, building the reliability of equipment operation and so on. For example some machinery manufacturing enterprises and electronic business, they take into account the company’s precision equipment, quality of photovoltaic power generation, the roof slope angle is very strict. If PV vendor does not have such a concept, that in effect is a larger challenge to build power stations.

Secondly, it is technological innovation. Now more emphasis on the inverter, battery, and system of technological innovation, environmental analysis and research is often ignored. We are doing one thing, and that was divided into several regions of China, according to different environmental conditions were analyzed. Because the environment has implications for power generation equipment and systems are each climatic environmental factors for the equipment, power plant operation are not the same. So we will quantify the data mark and then fed back into the test on the standard methods, thereby improving environmental adaptability of key materials, ultimately optimizing algorithm for generating capacity. In Tibet, for example, and Hainan, the spectral energy distribution in both regions is slightly different, ultraviolet energy can be more than 8% in Tibet, and Hainan, basically 2%, in Tibet if we select the HF-efficient battery technology and components, then its higher power output than the rest.

In addition, how the costs of solar power or electricity costs to a minimum, but we need the whole industry to work together. Our path is to ensure component performance and improve reliability. Electricity generation data are all devices, including operations management, efficiency, and reliability of a best proof. We hope that through the operation and maintenance levels of these data mining, systems integration and operational efficiency of the photovoltaic power plant eventually can form a perfect corporate standards, or industry standards.

Original title: Cai Jibo: PV quality is fundamental to protect its gains

Shunfeng pingluo 130MW PV “illegally built” continued in further escalation of the conflict

Polaris solar PV net news: into the end of October, sharply colder weather in the North. The major PV plants are under construction, and also didn’t waste any time, day or night, to seize the year running out of favorable weather to advance progress.

Changzhou shunfeng photovoltaic PV of PV is the rise of the domestic photovoltaic industry in the past two years rookie pingluo 130MW photovoltaic power plant is the first ground station starts this year, and in September this year, media of pingluo 130MW photovoltaic power plant was first built was to call a timeout event exposure, outside of Changzhou shunfeng photovoltaic PV in pingluo move more of a concern.

“Unauthorised” is ongoing

A few days ago, this reporter went to ping Luo 130MW, shunfeng photovoltaic PV power plant project site, has been heard far off the machine crash. According to the EPC contractor zhongke hengyuan Technology Corporation (hereinafter referred to as “zhongke hengyuan”) pingluo, in charge of the project, since mid-August, Xian Qing new energy limited (hereinafter referred to as “Xian Qing”) since entering the pingluo project, Xian-Qing has claims to the EPC general contractor of the project, has not stopped the construction.

Journalists on the related formalities of examination and approval of the project an interview with Ping Luo land Bureau official. Official made clear the project at present no legal procedures, shunfeng photovoltaic is illegal construction. Land and halted several times, but has no right to take coercive measures, carry out joint law enforcement and local government-led.

The other hand, the EPC general contractor of the project and who was it?

In this regard, zhongke hengyuan showed the reporter signed with Changzhou shunfeng photovoltaic PV “Quad Agreement”, and pingluo PV owners in pingluo section of EPC general contract, signed. The two contracts, defined the zhongke hengyuan is pingluo 130MW of EPC general contractor project.

So-called “Quartet agreement” is refers to, March 2013, in the section constant source and pingluo in the electric section energy of limited company (referred to “pingluo in the electric section”, pingluo 130MW station owners), and downwind photoelectric investment (China) Limited (referred to “downwind photoelectric”, pingluo in the electric section shareholders, holdings 90%), and Ningxia in the electric section day trillion energy limited (referred to “Ningxia in the electric section”) signed of on pingluo 130MWp ground PV station project of cooperation agreement. The “square deal” prescribed shunfeng photovoltaic, CLP agreed and confirmed in pingluo, Ningxia pingluo 130MWp ground with the zhongke hengyuan PV signed the EPC contract.

The EPC general contract refers, on May 20, 2014, zhongke hengyuan signed with the pingluo section of the EPC contract.

However, Xian Qing company otherwise on this story. Xian Qing official said on August 15, won status as a Contracting Party. Zhongke hengyuan executives said that Xian Qing has so far refused to produce or Changzhou shunfeng photovoltaic PV signed with the owners of the EPC contract.

Further escalation of the conflict

Following newspaper reports of Ningxia pingluo PV power stations construction bulldozers ploughed the ground after the incident, Heng Yuan recently was informed by the persons concerned, at the construction site in the vicious fights assault case.

Reporters came to the third people’s Hospital of shizuishan City (in pingluo County people’s Hospital), saw still lying in a hospital bed recovering zhongke hengyuan employee Liu Ying. According to Leonard Liu described on September 29, he inexplicably at the construction site was beaten by Xian Qing construction personnel. At that time, an unidentified group of people came to the construction site, and Xian Dong Qing construction worker spat Xian Qing construction worker finds the gang zhongke hengyuan is called people, so see the zhongke hengyuan employees and employees. Leonard Liu was at the scene, also drove by Xian Dong Qing construction workers armed Chase, he ran to the construction site next to the desert, but finally was caught up with and was beaten by the body.

In another bed, reporters also saw September 27 bulldozers “buried alive” the zhongke hengyuan employees cu. Fang Tong said he has eyes to see things as “ghosting”. Recall the circumstances, CU said that when he was at the scene, see the bulldozers moving in Xian Qing zhongke hengyuan came here, so he rushed, bulldozer driver saw copper came towards him in the past, leading to copper is buried by dirt from head to toe.

“I do not have prepared, bulldozers moved in, I was buried, at that time, I was all over the mouth, ears, and nose. “CU says. After Xian Dong Qing people out of the soil.

For this vicious assault, told reporters Beijing lawyer Chen Zhiping, although Xian Qing who pulled copper from soils, but in terms of practices of the bulldozer driver, still constitutes murder, because there was evidence that copper is standing right in front of the driver knows, were still driving a bulldozer and causes the copper to be buried. This behavior might lead to copper died.

Original title: shunfeng pingluo 130MW PV “illegally built” continued in further escalation of the conflict

PV industry in South Xinjiang chaos threshold was too low is the main reason?

Polaris solar PV net news along 314 national road from Xinjiang akesu drove to kalpin County with “Zheng Wang is not a bleak vegetation” to describe the Gobi wasteland apt. How waste beaches as “golden sand” topic has always been a pigments and painting day and night.

Face painting is kalpin County in charge of industrial and investment of the Standing Committee of deputy heads. He told Xinhua in an interview, with respect, said Xinjiang is rich in natural resources, but Aksu Prefecture, Xinjiang in particular has not, drought, salinity, each spring and summer to make unsolicited, blocking out the dust, and cotton seedling withered, Heng Fa Chuen faded late and dry hot wind, hail … … Poor natural conditions has allowed agriculture to become typical of weak industry. Industry, neither hidden beneath the Taklamakan desert is a substantial reserves of oil, natural gas and precious minerals, nor as Tian Shan, Karakoram, Altun is rich in coal, non-ferrous metals, ferrous metals, only here, looking out into the desert wasteland in the Sun all day long and do not fall at the end of Gao Yang, average annual sunshine 2788.7 hours.

Because of this, kalpin County the first industrial project is to invest in the construction of photovoltaic parks. According to the pigments and paintings introduced keping photovoltaic industrial park region represent the year in which solar radiation reaches 5531.4 MJ/square metre, year generation time is more than 1500 hours. Park covers an area of about 25 square kilometers, with a total investment of 12 billion yuan, total capacity planning 1.2 million-kilowatt.

Yan said, Park phase I planning to 200,000-kilowatt, after being put into operation every year when you can provide clean energy to the grid 300 million-kilowatt, saving 98,000 tons of standard coal, reducing sulfur dioxide emissions 2562 747 tons tons and 278,000 tons of carbon dioxide and nitrogen oxides; economic benefits so generated considerable, can achieve annual output of 280 million Yuan, and taxes of 40 million Yuan (excluding corporate income tax), greatly improving the local benefits.

As of 2013, the industrial park has invested 750 million Yuan to build 60,000-kilowatt capacity; Park, 220,000-volt 1×180 MVA transformer substation project period will be completed and put into operation during the year.

Reporters at the Park to see, flat Gobi desert covered with photovoltaic panels, as put on the “armor”, when the Sun is shining, gleaming.

In grid-connected has power of keping a photovoltaic plant monitoring room, reporters saw output figures beating up, current installed capacity of the power station at 20,000-kilowatt, built in another 60,000-kilowatt year grid.

In addition to CPI, but has now signed investment agreements of enterprises amounted to more than 30 companies, including Guangdong, chint in hydropower, energy-saving, Sun and moon, the new photovoltaic companies, has contracted the planning of capacity up to 1.5 million-kilowatt, beyond the park planning 300,000-kilowatt. Among them, over more than 10 of the feasibility report has been completed, involving 30duowanqianwa of capacity; have started construction of 5; built with 3.

But reporters found that Park in addition to CPI a 20,000-kilowatt realization of grid-connected PV power station electricity generation, 2 other total 40,000-kilowatt not grid-connected, named “aikang” PV power station has undergone 2 owners, known as “sea-run” share transfer of power station has just been implemented.

In this regard, face painting, admits that current photovoltaic industry did exist all kinds of chaos, such as some reference to power generation target price to resell directly, after other companies built power plants sold in its entirety.

“In order to eliminate scalping indicators in our industrial park, the introduction of PV industry development company; to eliminate whole sale situation, we started late last year, in the clear when he signed a contract with participating companies, corporate, stock and other changes must be agreed with the local government. “Face painting told reporters.

Such chaos occurs, or is associated with photovoltaic threshold is too low. NDRC official told reporters in Aksu Prefecture, southern part of 700,000-kilowatt power indicator this year spread to dozens of power plants, there are nearly 40 companies involved in Aksu Prefecture alone come to compete for generating indices of competition. Some registered capital only more than 1 million of SMEs got indicators is no strength starts construction, only put indicators changed hands reselling off; also some got indicators of enterprise actually is battery Board and the various PV power equipment of production manufacturers, to sales battery Board mainly, this class enterprise accounted for to half above, they of idiomatic practices is station built Hou overall sold, only built not operations, its equipment quality was Kan worries.

These officials said to restrain the photovoltaic industry disorder, it is imperative to improve the entry threshold, such as participation in the registered capital of enterprises, industries, technology and sustainable development of the requirements and the limited land resources to achieve maximum benefit, led to more local peasants and herdsman.

Original title: photovoltaic industry in South Xinjiang chaos threshold was too low is the main reason?

An analysis of PV power generation and attenuation of photovoltaic modules

Polaris solar PV net news: 1, introduction

Due to the global energy crisis, resource-rich new sources of energy, such as wind and solar power gradually occupies an important position. World Solar photovoltaic power generation system maintains sustained rapid growth in recent years, by 2012 the world PV cumulative installed capacity has reached 102GW[1] and become the fastest-growing electricity generation technology, photovoltaic power in more than 20 countries to achieve parity.

As the core component of photovoltaic modules technical breakthroughs, and constant improvement in the efficiency, cost per kilowatt of photovoltaic power generation system will gradually approach the traditional thermal power generation cost, simultaneously with the development of energy storage technologies, and photovoltaic systems due to its system free, low threshold installation requirements will be applied more generally from around the world.

PV system in the market as a whole, grid-connected photovoltaic system at present has an absolute leading position is dependent on the development of grid-connected photovoltaic technologies mature, continuous research and development progress of the corresponding device performance and cost, as well as Governments actively promote the policy.

2, the principle of photovoltaic power generation system

As broadly divided into grid-connected photovoltaic power generation system based on actual application system and individual system [2], due to the large grid-connected systems share application, this article focuses on grid-connected systems electricity production estimates.

Also, due to the different size and condition of the system, grid-connected systems and there are also some systems, this assessment is based on how much electricity large-scale PV power station as a model, and photovoltaic power plant’s environmental conditions are relatively good.

Figure 2-1 block diagram a typical of large power stations generate electricity.

2-1 principles of large-scale power generating diagrams

The entire system consists of photovoltaic array and (straight) composed of streaming transmission, PV array output DC power on after DC lines after the confluence of the inverter into the AC waveform frequency stability rules, and then following a step-up to medium voltage in-place, in the medium voltage AC lines on the confluence of two concentrated booster, and finally connected to the grid for grid-connected.

According to the diagram, usually in property rights installs an effective power meter to measure the PV power plant generating capacity, which is the most accurate statistics. According to the early years of revisions to statistical data analysis of simulation data, can more accurately forecast future capacity.

3, PV power plant generating capacity loss factor analysis [3]

Early in the project more accurate estimates of PV power plant generating capacity, in addition to the structures have a deep understanding of the PV system or major equipment performance parameters must be have a deep understanding. Also, if you want a longer period of electricity when estimates are, you should take full account of the long term effects of environmental factors and plant operation status forecasts.

Analysis of photovoltaic power plant generating capacity estimates for the first year, usually loss factors to consider are as follows:

⑴ the inclined angle sunlight exposure correction;

⑵ component effects of surface dirt and other foreign objects from the light;

Effect of temperature on the photovoltaic module output c;

⑷ PV module’s own decay;

⑸ string component matching losses;

⑹ square shadows between before and after the loss;

⑺ DC transmission line losses;

H inverter efficiency losses;

⑼ local transformer losses;

⑽ AC line losses;

⑾ transformer loss;

⑿ utility power loss;

⒀ downtime losses;

PVSYST is usually used when software-emulated output, without considering the loss of electricity and downtime is to consider other factors, an integrated data.

Analysis after 24 years behind when PV power plant generating capacity, operations management is the most important factor, but poor estimates of, often assumes other factors that you don’t change, just consider the decay of PV modules itself.

4, PV module power of attenuation

In practice, after the PV module manufacturing has been in a State of decay, but is not in the package, see light attenuation is very slow, once after receiving sunlight, decay will dramatically speed up decay after a certain percentage gradually stabilize, as shown in Figure 4-1, the first annual decline curve model diagram:

Figure 4-1 PV modules in the first year the attenuation curve model

Figure 4-1 the first year 3% total attenuation data attenuation from astronergy solar polycrystalline silicon components for 25 years guarantee, which guarantees 25 attenuation is shown in Figure 4-2,

4-2 photovoltaic module decay curves

As can be seen from Figure 4-2 PV module maximum attenuation value is 3% for the first year, followed by 24 year attenuation value is 0.7%.

Due to the initial stages of decay are directly connected with intensity, so that in the first year, on the average light intensity conditions basically renders sharply attenuated in the early, late State progresses smoothly. But, in fact, a solar power station from components start to install grid-connected to finally begin this time span is not certain, metering capacity of time to begin, a component may have a certain ratio of attenuation, in order to reduce the actual and theoretical estimates of error, in addition to time after warranty requirements, General components at the factory, there will be a certain percentage of power deviation, Deviation can cover a portion of the power components due to some human factors in some of the cases where no power attenuation loss.

So in theory calculations, power output rated power the starting point of the simulation can be equated to photovoltaic module factory rated power and linear attenuation attenuation can be regarded as a component within a year.

5, PV electricity production estimates

PV energy output calculations are in fact PV power output in real time with the time integral of the function, as shown in Figure 5-1,

5-1-time curve of PV power schematic drawing

For ease of calculation, usually pictured above is equivalent to the standard light intensity of output power and peak sunshine hours, rectangle, as shown in Figure 5-2,

Figure 5-2 photovoltaic power-time equivalent rectangular drawing

Photovoltaic power plant generating capacity each year equivalent power p ′ x q = peak time Hx365 days of sunshine, with equivalent power p ‘ in the actual day is a fluctuating values calculated under the formula (5-1) said,

The equivalent power p rated installed power Px system efficiency η ′ = (-5-1)

For the purpose of computing 25 years power output of photovoltaic power station, 5-1 can be expressed as 5-2, as follows

Equivalent power p rated average installed power Px component efficiency η ′ = 1x system efficiency η 2 other loss elements (5-2)

Integrated above, PV station years electricity Q= rated installed power Px component average efficiency η 1x system other loss factors integrated efficiency η 2x peak sunshine time Hx365 days, in 25 years term in the, except component average efficiency η 1, other items of product can considered a not variable of constants Q?, is eventually of expression type for PV station years electricity Q=Qx component average efficiency η 1 (type 5-3).

Component average efficiency η 1–(beginning of component proportion rated + percentage components rated capacity at the end)/2

Power deviation deviation can cover a portion of the power components due to some human factors in some of the cases where no power attenuation loss.

So in theory calculations, power output rated power the starting point of the simulation can be equated to photovoltaic module factory rated power and linear attenuation attenuation can be regarded as a component within a year.

To sum up, to chint solar grade polysilicon components Attenuation to ensure, for example, 25 years component average efficiency is shown in the following table:

Table 5-125 component rated capacity changes in the forecast table

Estimation of annual energy output in table 5-225 relation

Such as PVSYST software estimation when PV power plant capacity in the first year, and system efficiency is not considered in power station self power and downtime of both, but it does not affect calculated according to estimates for the first year after 24 years behind estimated generating capacity. According to previous statements, first year generation time estimated by PVSYST, in the Detailedlosses, if Moduleefficiencyloss is set to 1.5%, then calculate the average efficiency of the component 98.5% in the first year, estimated power output for the first year is the second year of 98.12%, to 97.41% in the first year for the third year, fourth year to 96.7% in the first year, followed by example, as can be seen from the second year onwards, Behind the annual estimated generating capacity of approximately 0.7% reduction on the basis of the previous year.

6, summary

According to the above calculation generally draws the following conclusions: in the case of other factors being equal, an attenuation of the PV electricity generation with PV modules are compared. However, the actual operation, component surface cleaning, the failure rate of the device, power management is the main factor affecting the capacity of power stations in the late record loss of power station operation factors influence, then the estimate amending the electricity production has a very important significance.

Original title: an analysis of PV power generation and attenuation of photovoltaic modules

The facts you didn’t know about Yi Wanpa power station

Polaris solar PV net news: Ivanpah plant of the world’s largest solar thermal power station installed capacity has been built since construction began on the large enough to attract much attention, also caused a lot of controversies, after the commissioning of the operation now has become a hot topic in the industry.

Question 1: why not all heliostats are working?

“A few weeks ago I take a plane fly over the Ivanpah plant, and found that not all of the heliostat focusing to set Tower receiver, this should not result in power station efficiency to reduce it? ”

For why not all of tingri mirror are focused to endothermic device, station party NRGEnergy company of spokesman JeffHolland said, “planning on not such of, 174000 sets tingri mirror is not all must focused to endothermic device Shang, we must do of is on each tingri mirror for precision positioning, specific whether enabled it this depends on each months daily each Shi of specific situation, as Sun in sky in the of what location, clouds and haze of thickness and how much, All these are factors which determine which heliostats are enabled. During the day, we will be a percentage of the heliostat focusing to receiver outputs meet the actual demand for power, this ratio is based on specific weather conditions change. If it is in the evening, around the plant West of mountain shadows may cover part of the heliostat, but the Sun is in the West of the sky in the evening, heliostat reflects light to the West at this time will far exceed the heliostat in the East. ”

“We installed a sufficient number of heliostats, to meet the environment adapt to the needs of the different seasons and weather conditions. So often see the heliostat is not in working condition, but in the full year, every heliostats are used to, we just don’t need them 100% time in a working state. “JeffHolland added.

“Good day solar radiation, May 20% of the heliostat in the output are not required to work during peak, because it 20% the heliostat is designed to meet the power station are still in a bad radiation resources time maintaining stable power output, such as in the DNI every morning irradiation time period. “BrightSource’s operations Director, GustavoBuhacoff said. He was responsible for changing the algorithm implementation of heliostats according to circumstances control the heliostat.

“We are only in the morning when, startup 100% heliostat at the plant, or in the evening every day. The power station have been especially designed to adapt to the changes in the weather are considered to maintain power output of, when there is no ideal daylight conditions, we can still maintain a level of power output. “He added.

Question 2: the heliostats track the system fails?

“From my camera, I see the heliostat shone, but their adjacent heliostat has not, like many heliostats in a similar tracking system broken fault, is that true? ”

“The tracking system the motor may be bad, but you see we may manage to reduce the solar flux under. Heliostat in standby standby mode focus generally was beside the point to the heat sink, which is easy to produce a strong glare. The standby location algorithm by amending the heliostat, to distract heliostats focus scope, reduce solar flux, heliostat concentrated intensity is reduced, thus reducing the glare effect in stand-by mode. Specific programmes are at different positioned in the direction of a certain number of heliostats, rather than gathered simultaneously in the same focus. This will reduce the glare problem, as well as reducing the likelihood of killing birds. “Uhacoff said.

Within 6 months of operation of the power station, a total of 321 bird deaths, of which one-third was killed by focusing light. Take these birds to illustrate its drive technology in July this year, heliostat algorithms made adjustments, alternate heliostats focus is diffused. Buhacoff said, “in order to reduce the mortality rate of birds, we study from more than one direction to reduce intensity of focus. We changed the control algorithms of heliostats, alternate heliostat concentrator spots are scattered to different places. “Therefore, this situation can see that what you say, but it’s completely normal.

Question 3: why power plant generating capacity much lower than the design value?

“Ivanpah plant put into operation so far has not been an article that explains the plant’s generating capacity, but most solar projects will be announced after the commissioning of the power output to tell you station meets the design requirements. Ivanpah plant failed to do, does that mean its power output more far from the design rated output “?

Holland put it bluntly said, “for the operation of the power station, when it was formally put into operation within 175 days, it has produced 200,000 MWh of electricity, this figure is in line with our original estimates. ”

But figures released by the NREL is the Ivanpah plant generation capacity should be at 1079232MWh, after the conversion of the figures are compared with the gap too far. This will become the norm?

Holland explained that “the power station has just put into operation, and indeed is the world’s first large-scale solar thermal power plant, the project still needs testing-related components in plant operation performance, optimal work carried out, these are factors to be pulled down. ”

Holland believes in years Hou, Ivanpah station of power output will can reached NREL announced of digital, for such a pioneering sex of large Tower type light hot station, project party and shipped dimension party are needs in station of actual run process in the gradually fumble, improved, upgrade station of run effect, and this is needs a learning curve of, especially for such a world Shang has never no of mass station. For its current generating capacity has nothing to hide. But people in the industry should have a clear understanding of the cognitive, not parrot.

Original title: the facts you didn’t know about Yi Wanpa power station

Experience in photovoltaic industry trend of jiaxing

Polaris solar PV net news: summer’s sweltering in Zhejiang Province, many families to save power, preferring to put air conditioning does not open. But many rural residents in jiaxing, air conditioning will be pleased not only with, also had a monthly electricity bill paid.

From the recently held in jiaxing, national distributed PV Forum is aware, PV industry in Eastern Province of Zhejiang, “five in one” innovation pilot in jiaxing, nowadays more and more businesses and families join the ranks of self-built photovoltaic power plant, to experience winter lows of jiaxing injected fresh vitality into the photovoltaic industry.

Electricity not love money

In xiuzhou district, jiaxing Xin Cheng Zhen Qi Jia bang neighborhoods, more than 50-year-old Wang recently was to consult community leaders how to install solar panels: “because I saw someone’s home after the solar panels were installed on the roof, air conditioner in summer, not only don’t feel bad, and the monthly electricity Board also ‘ pay ‘ tariff. ”

In November last year, and Qi Jia bang road apart Sha Jia bang village, there are more than 100 multi-family homes are equipped with rooftop PV power generation equipment, a small farm buildings at the roof of the Villa under the sun shines, and the light was pouring into electricity. Zhejiang Province, which is the first village of photovoltaic power generation, the first 100 families has a total installed capacity of 2000-kilowatt.

Lives in Haining city, Hai Chau DAO Xin Yue Hua Zhuang Kunjiang, 2013 application a 10-kilowatt capacity of distributed PV systems have been installed, it didn’t take long, they receive electricity from the local power company a 19.63 dollars, this is the roof of his house after a grid-connected photovoltaic systems, to sell surplus electricity to power the company’s sales. Zhejiang, which is the implementation of individual photovoltaic power generation after the new deal, to personally pay the first grid-connected electricity.

According to Zhuang Kunjiang accounting package of equipment with a total investment of about 100,000 yuan, calculated in accordance with 1100-1200 hours of sunshine in Haining, this equipment can make electricity 12,000 degrees per year. “Every kilowatt-hour, State-subsidized 0.42 Yuan, local financial subsidies are estimated at 0.2 Yuan, coupled with spontaneous personal use exemption of tariffs, and sold to the national grid of electricity, kilowatt-hour consolidated earnings of 1.47 dollars, electricity 12,000 a year, income is 17,000 dollars. Over 5 years will be able to recover the costs, net income of 17,000 yuan every year after. ”

In solar technology, General Manager of Zhejiang Hou Shengzhong’s view, along with the maturation of distributed PV technology, distributed PV will be more into ordinary homes, not only to change the traditional concepts of electricity, energy saving can also play a very important role. And the family distributed PV market, relieving excess PV upstream capacity also play a role.

Reproduction of the photovoltaic industry activity

In addition to individual distributed PV is very interested in, companies are enthusiastic.

“The workshop production this year has been booked, although now is the peak of summer, businesses will not affect production due to rationing as before. “Canal in jiaxing xiuzhou Industrial Park Road flat solar glass Group plc, CEO yuanfei, Deputy Director of the Office, pointing to a wall of electronic screens such as rooftop PV power generation of the enterprise, to visit the country distributed PV onsite exchange of experts, scholars and media reporters.

As a leading manufacturer of super white solar glass businesses, flat glass for the power of demand is enormous. Following the implementation of distributed PV policy, investment of 60 million Yuan, 123,000 square meters in the Enterprise set up 8.364 megawatts of solar panels on the roof, and on June 30 this year, power generation.

Just one month’s time, the roof power plant generating capacity of nearly 1 million degrees, which not only greatly reduce the flat glass production of electricity demand, also lets businesses see the photovoltaic industry once again usher “Spring” of hope.

In 2012, affected by the European debt crisis and Europe and implementation of photovoltaic products in China, such as “anti-dumping and anti-subsidy” affected, “two out” China PV industry group this winter, total solar output one-third and has formed the industrial advantage of jiaxing PV companies are going through the most difficult moments. Yuanfei said the PV in 2012 “winter”, the flat suffered little shock. As domestic PV Application market gradually started, the current corporate earnings have started to pick up, domestic market share has climbed from last 30% to 50%, are now already operate at full capacity.

Today, the scarce resource into the roof, jiaxing city, businesses, hospitals, schools, large markets, farmer’s roof, were effectively collecting and unified configuration.

In February and May this year, xiuzhou district, jiaxing city, administrative centre and the administrative centre of the roof grid-connected PV power generation projects succeed, electricity is mainly used for Office lighting. In June this year, Haining developed about 70,000 square meters of the roof for photovoltaic power generation, when the average annual electricity production of 3.5 million-kilowatt.

Similarly, in Pinghu, jiaxing in Zhejiang jingxing paper company 9 enterprises, lined the roof of distributed PV equipment has been installed, grid-connected acceptance. The 9 companies planned a total investment of 340 million Yuan, is completed when the expected annual generation capacity of up to 40 million-kilowatt, enterprises can not only ease the power difficult, has become a powerful hand in energy saving and emission reduction.

Distributed PV Conference in the country, Mayor of jiaxing city, xiaopeisheng is given a set of data: jiaxing currently has 3.5 million square meters of efficient roof for photovoltaic, PV cumulative installed capacity of 260 megawatts, the equivalent of qinshan nuclear power installed capacity, ranking first at the nation, when the total power generation capacity of 65.73 million-kilowatt. According to scientific estimates, thereby saving power generation coal-fired 26,200 tons, reducing sulfur dioxide emissions by 1962.9 tonnes, 6.55 tons of greenhouse gas emissions reduction.

Since last year, the PV industry in jiaxing, in one fell swoop out of the Red shadow, again making gains. First half of the year, jiaxing PV enterprises above designated size achieved operating income of 9.459 billion yuan, an increase of 31.1%, a profit of 320 million Yuan, an increase of 9.3 times. Meanwhile, the trend apparent cluster of PV industry in jiaxing, industry chain and more complete, the emergence of a number of renesola, jinko, Follett buck enterprises.

Distributed PV plus constant

Government guidance and market operation, unified management, “jiaxing experience” effectively distributed in photovoltaic development of a range of common challenges, access to a national distributed PV Conference recognized by many experts, to Zhejiang photovoltaic industry trend provides useful reference.

On August 1, the price Bureau of Zhejiang Province, Zhejiang Provincial Committee through a letter, and Zhejiang Provincial energy Bureau jointly released the notice on further clarify the policy matters such as PV prices, State renewable energy development fund subsidies for PV power generation projects in Zhejiang Province will give 0.1 Yuan/kWh subsidy.

The initiatives that the industry’s business confidence soars.

“The Government policies allow enterprises to be reassured of distributed PV also allows enterprises to see the direction of development. “Da PV, General Manager of Zhejiang Hou Shengzhong said that encouraged by the Government, as well as the market continues to heat up, enterprises in Zhejiang Province has obtained a total of approximately 50 MW distributed generation projects, including zhongce rubber, Fu Chun group companies, corporate production is already have a full schedule.

And, in mid-July, assembled by Xin Huang, Zhuji new energy technology development of 5000 square meters distributed PV array, on top of the God Bull machinery factory in Zhejiang Province formally incorporated into the national power grid, becoming first distributed grid-connected photovoltaic applications low voltage enterprise of Shaoxing.

To encourages distributed PV power application, Shaoxing introduced has accelerated distributed PV power application of implementation views, for meet superior provides, and made province, and Shaoxing NDRC PV power plans indicators of related enterprise signed PV power project of, project built Hou, since power of day up by its actual electricity except enjoy national 0.42 Yuan/kWh, and province 0.1 Yuan/kWh subsidies policy outside, city financial again gives 0.2 Yuan/kWh of subsidies, subsidies term for 5 years. In other words, a project can enjoy 0.72 Yuan/kWh subsidy.

Original title: experience in photovoltaic industry trend of jiaxing

11% proportion of solar thermal power generation and distribution to achieve it?

Polaris solar PV net news: IEA (International Energy Agency) previously released the latest version of the solar-thermal power technology roadmap shows that by 2050 the global 11% of electricity supply will come from solar-thermal power, which sounds very encouraging, but there are still a lot of people questioned its.

IEA suggested that by 2050 solar power will become the world’s largest source of electricity, when the PV global electricity needs will be provided by 16%, solar-thermal power generation will provide global electricity needs of more than 11%. Indeed, the road map still clinging on for most of the solar thermal technical support is a great encouragement.

IEA publishes two solar road map last month, said: “by 2050, the expected solar power technology can reduce carbon dioxide emissions by up to 6 billion tonnes a year. That figure is higher than the current United States national carbon emissions, and more every day, all vehicles per day or than the current global carbon dioxide emissions, and more. ”

Nevertheless, the IEA said: “these solar roadmap was not making a prediction. Just like other road maps released by the IEA Solar also took full account of the roadmap 2050 years ago projected technological advances and Government support, also assume that Governments, research institutes and industry will give priority to choose road and in strict accordance with the established timetable for advancing solar technology. ”

Solar roadmap is developed under the criteria based on several key assumptions, such as solar technology improve cost, Governments actively spontaneous responses to climate change issues and constraints for other low-carbon technology such as nuclear energy and so on. IEA renewable energy Division c-e dricPhilibert to this explanation: “solar roadmap is an ideal goal. In this scenario, global emissions of carbon dioxide will be cut in half, nuclear power and carbon capture storage technologies are subject to some constraints and arrested development. On the premise of these assumptions are true, solar energy will become the terminator, became one of the largest electric power supply sources. This results in various countries for technology economy and a variety of potential issues to consider. ”

Energy storage

If solar-thermal power to meet global 11% electric needs, what the world will look like? IEA believes that the most important thing is that thermal energy storage technologies will play a vital role. Philibert said: “If the solar-thermal power technology roadmap of the objectives to be achieved, with heat storage system of solar thermal technology is definitely the most important reason. PV technology, solar-thermal power generation costs are a little higher, so for now, solar-thermal power generation systems combined with traditional fossil fuel power station has a certain value, but that is not enough to make the solar-thermal power technology roadmap can be achieved. ”

IEA believes that heat storage technology to make solar-thermal power stations with stops at the Sun PV power generation continues after power generation capacity. Philibert believes that provide 16% of the world’s electricity needs relative to solar at night or when the sunlight is less resource who can provide a power value.

From a technical perspective, published by the IEA of the solar-thermal power technology roadmap is recognition field on molten salt solar thermal Tower of new solar-thermal technology innovation and value. Philibert said: “all form of solar-thermal power generation technology will be to implement the solar-thermal power technology roadmap–contribute to meet the 11% of the world’s electricity needs, while all forms of solar-thermal power generation technology are also increasing and improving spaces. However, under the current state of technology, because of the need to store heat, molten salt Tower using the fluidity of molten salt as the heat transfer medium gravity may represent a more efficient design. ”

Philibert introduces solar-thermal power industry now want to explore technical areas including research and development of new type heat transfer medium, the development of new type heat storage device, new supercritical power generation technology in research and development and the development of a new collector system.

In addition, the IEA believes that solar thermal and PV complement technology also has great potential for development, such technology could make solar power more efficiently into electricity and heat. It is understood that some containing Emcore Corporation is currently conducting this type of technology, research and development, but the IEA spoke highly of this technology can be verified is unknown.

Philibert again stressed: “our prediction of the road map is not the final result, they’re not going to tell you what is going to happen, they just describe what if we are serious about climate change should occur. ”

Current status of

In addition, the solar thermal power technology roadmap describes the 11% of solar-thermal power to meet global power needs as far as the current level of development of solar-thermal power generation seems to still have a long way to go. Philibert said this explanation: “in accordance with the solar-thermal power technology roadmap, solar-thermal power generation in 2025 will be a large development. Current level of solar-thermal power development with the description of solar-thermal power technology roadmap is not directly related to only an indirect relationship. ”

Demand high demand in emerging economies such as China and India and other countries to halve carbon emissions by 2050 to achieve seem a bit unrealistic, its path is to develop viable renewable energy.

Developer of solar thermal systems Airlight energy GianlucaAmbrosetti, head of the Research Department of the company believes that solar-thermal power generation of the shortcomings of the technology roadmap is the vision wide enough.

Although IEA very active to to everyone show with melt salt Tower type light hot technology of huge development potential, but actually Airlight energy company currently has in for high temperature air and gravel storage hot system of slot type light hot power technology of commercialization, the storage hot system of investment cost just accounted for station total cost of 1%-2%, and non-currently General of level (10% or more).

Ambrosetti says: “I used to because there is still a long way to go and feel very frustrated, but now have the roadmap, I felt inspired. ”

Original title: 11% percentage of solar thermal power generation and distribution to achieve it?

This bearing photovoltaic roofs of dreams

Polaris solar PV net news: head of national first batch to create a new energy model city, the first national low carbon industrial park the two heavyweight title, holding out of distributed PV conundrum of the leader of “xiuzhou mode”, “science fiction” for the magic, of the “dream” reality, jiaxing PV PV industry in high-tech industrial park is leading the national development.


Distributed PV generation benchmarks

Shajiabang community in Xin Cheng town, 62-year old Yang Alin curiously in a bi-directional meter installed, “I hear about 3 kWh of electricity a day. “Yang Alin told reporters. July 31, at 2 o’clock in the afternoon, along with cage’s switched on, Xin Cheng town, Sha Jia bang Qu 7 resident Yang Alin roof photovoltaic grid-connected equipment was formally completed, shajiabang community first farmers to install photovoltaic shingles.

Before Yang Alin, Sha Jia bang more than more than 100 communities have farmer’s rooftop PV grid-connected devices has built. Standing at Yang Alin roof can be seen “spectacular” scene, whether it in front of or behind the House, PV devices everywhere, gleaming in the sunlight, transformed by the light of the current was flowing into homes.

In Nanhu 20 kilometers away from Yang Alin home, who lives in green zhangqi town (a pseudonym) is equally concerned about his own “roofing plant”. It is reported that zhangqi roof photovoltaic device and the total installed capacity of 6000 Watts, on April 9 this year since incorporation, zhangqi roof “power station” has accumulated power generation 543-kilowatt, which 362-kilowatt Internet access.

In March of this year, the province’s first industrial and mining enterprises was born in jiaxing PV photovoltaic distributed generation invoices high-tech industrial park, the receipt heralded the emergence of distributed solar power projects ‘ policy to deliver a crucial step forward. Invoice issue to facilitate policy cashed, it embodies the settlement streamlining, for PV companies to solve the worries.

“Since incorporation, construction company distributed in photovoltaic projects power at 3,326-kilowatt, all for the company to dissolve. “Jiaxing power authority official told reporters. July 9 to realize the project for construction company incorporations, photovoltaic power generation, “sweetness” has only just begun.

In August, the national distributed PV site meeting held in our city, “distributed photovoltaic industry will usher in a period of rapid development in the future, distributed PV power have set the standard in jiaxing, has popularized across the country. “, Director of the Energy Research Institute, national development and Reform Commission, international King once said of PV industry in jiaxing.


PV “xiuzhou mode”

Bright midday sunshine in xiuzhou new world, more than 35,000 pieces of polycrystalline silicon photovoltaic modules lined up, let the roof of Dragon technology development zone a unique scenery. Longteng science and Director, sunlight is crucial to production of the company “energy” sources.

“Our rooftop PV total of 8.93 MW of installed capacity, with a total investment of 90 million Yuan, when annual generating capacity of about 9 million-kilowatt, when the network operation has accumulated since power 1.77 million-kilowatt, and provide vital energy for factory production, save a lot of electricity costs for the factory. “Zhejiang lontium technology official said.

Dragon Project contractor China Guangdong Nuclear solar energy (jiaxing), participating in the distributed photovoltaic power generation demonstration project of passion without strong Government support. “Roofing resources is very important for investors, PV, high-tech zone, jiaxing had played in guiding and coordinating role of the Government, ahead of the Park’s roof resources touching exhaust, filter. In our confusion and hesitation, gave us a list of roof resources in all areas, different types of roof structure at a glance, building pointed out the direction for the project. This is demonstration of distributed PV applications in PV, high-tech zone, jiaxing fast-moving reasons. “China Guangdong Nuclear solar (Zhejiang) limited General Manager Du Wenyuan said.

From “m” to the “servant”, high-tech industrial park, jiaxing PV did carry out services for enterprises. As investor into signing headache, from the Park to a “template” the tripartite agreement to dispel the concerns of the investors, “at the time of signing, PV high-tech zone as a witness, Enterprise, investment and the roof sign a tripartite agreement, increased investment and the degree of trust between the owners. Meanwhile, roof rentals and prices of energy management contract with unified standards, effectively prevent investors for Rob roof resources arising from the cut-throat competition. In order to address tariff collection challenges, PV, high-tech zone set up a professional operation and maintenance company, is responsible for parks all distributed in photovoltaic power plant electricity bill settlement, operation and maintenance services, and build bridges of communication between investors and owners. “Park, a senior company official said.

Original title: roof of this carry photovoltaic dreams

Suri reorganization the reorganization relief PV industry also needs work harder

Polaris solar PV net news: the industry breathed a sigh of relief. Although differences remain on the previous day, but the afternoon of October 23, *ST Suri (hereinafter “Suri”) claim people voted to overhaul, Super Japanese bankruptcy exit fate is avoided. Following the shunfeng photovoltaic offer Suntech, merger and reorganization of PV industry in China for significant progress. Meanwhile, reporters learned that according to the State Council on promoting the healthy development of the photovoltaic industry advises spirit, led by the Ministry of industry and information technology of the photovoltaic industry is speeding up the development and implementation of the merger and reorganization of guidance, to promote PV next merger and reorganization of enterprises quickly and efficiently carried out.

Restructuring programmes taking into account the interests of all parties

*ST Suri’s liquidity ratio increasing from 3.95% to 20%, has increased more than 4 times times, it should be said the best interests of all parties into account.

The night of October 7, the domestic corporate bond market’s first event of default debtors Suri has revealed a series of announcements, including a super Japanese investors as well as people awaited the draft plan. PV enterprises of Concord Group, Jiangsu Golden Concord energy limited (hereinafter “Jiangsu GCL”) such as 9 units of the Commonwealth will act as a reforming of the investors, including GCL serves as the lead man in Jiangsu Province, and after the completion of investments into Suri’s controlling shareholder.

Suri in satisfaction of the debt ratio, restructuring programme, part of common claims 200,000 yuan (200,000 dollars) full payment, part payment in accordance with 20% of the more than 200,000 yuan. By contrast, according to the solvency analysis report, bankruptcy, property can change according to the evaluation of value in its own context, ordinary debt repayment rate is only about 3.95%.

However, some large creditors are not satisfied with this proportion. Creditors Tess o photovoltaic companies, one of the company’s stakeholders made it clear that “we support hyper-recombination, but does not accept a reorganization plan to pay scale. ”

Golden Concord (Group) Holdings Limited, Vice President and General Manager for financial management Cui Nairong said, this round of ultradian restructuring programme is the best interests of all parties into account, GCL Group result of careful deliberation and a number of investors, but also to improve the desperate Super day, the best way to avoid delisting. He also disclosed that the company for the largest ordinary creditor’s liquidity ratio has reached about 20%, the Suri’s overall investment also has no less than 3 billion yuan. If Suri restructuring programmes cannot be passed in a vote, then the company will be delisting as a direct outcome, settlement funds are available to each creditor will come to naught.

After weighing, creditors also voted for this restructuring programme. “Since the bankruptcy was caused by financial hardship could not pay its debts, and then, of course, any reorganization plan is impossible to please everybody. Partially full repayment of 200,000 yuan, or is the protection of small investors have done well. “Eagle investment management, investment director Zhang Wei, told reporters that” after *ST into a liquidity ratio of only zero adjustment from bankruptcy to restructure 3%, long endurance Phoenix from 0.8% to 11.6%, Suntech Power from 14.8% to 30%. 3.95% to 20% of *ST Suri, has increased more than 4 times times, it should be said the best interests of all parties into account, also paid a reorganization with the ultimate price you can afford. ”

Reforming influence on industry?

GCL white Suri, access to capacity, get through the entire value chain at the same time, also makes some people play waves in the industry.

After overhaul is passed, Suri will steadily entered reorganization proceedings. GCL as PV industry chain and wafer Giants to the white Super future, access to capacity, get through the entire value chain at the same time, also makes some people play waves in the industry.

Insiders said in an interview with the China electronics news, in order to avoid competition and their customers, Concord had previously claimed would not enter the PV module market, then the White King of Japan’s local governments, “pull” by? Buy a shell what Suri?

Another person in the GCL in the components market for over competitive concerns. “Although GCL said ultradian components to make your plant, however-day capacity if digestion does not end? Domestic wafer market basic GCL supplies, buy the GCL silicon components and GCL compete with the components they do? ”

For a “suspect” a “concern”, Solarbuzz Lian Rui, senior analyst, told reporters: “on the one hand, GCL as a large public company, was forced by the Government to buy Suri is impossible, certainly has its own strategic plan. Concord Group in Hong Kong with the GCL-poly and Concord two new energy listed companies, but it has no a-share listed companies, this time purchasing excess, though not this advantage business into the Super silicon, but there must be used in the future. The other hand, reforming just fall into place, they think they’re too far out, even one step at a time, after all, take your time. And, I think, for its downstream customers, even if both supply and healthy competitive relationship is also very normal. ”

“Without tension. “Staff members of the Secretariat of China PV industry association also told reporters of the China electronics news,” the perfect industrial chain, upstream and downstream integration, guarantee diversified product sales, business development and improving operating margins, and many other benefits. Is not only the industry, but precedent is very much in the photovoltaic industry. ”

He said that United States MEMC polysilicon enterprises is a good example. In 2009 with a $ 200 million acquisition of Sunedison North America’s largest solar energy service provider, entered the field of photovoltaics. In 2010, to $ 76 million acquisition of United States wafer maker Solaicx, access to silicon production capacity. At this point, MEMC completed the polysilicon, Silicon PV power plant construction and operation of PV industry chain structure. Besides, United States PV component package material producer pottery’s chemical acquisition has United States CIGS battery manufacturer NuvoSun; China of Sichuan pass Granville group 870 million Yuan merger has arisen now in Hefei of battery tablets factory, through polysilicon to battery pieces links, and its also intends to integration Sichuan new light silicon industry, more crystal silicon enterprise and tianwei new energy, battery pieces Enterprise; Oriental day liters also to 550 million Yuan acquisition Jiangsu Republika Granville grams materials limited 100% equity, Enter PV PV modules supporting materials EVA film business.

He also said that even government-led mergers, it is normal. Qinghai province, for example, through policy support and guidance, push around the upper reaches of the Yellow River in the province, such as utilities, Asia silicon for merger and reorganization of enterprises, and encourage enterprises to hold together for warmth, enhance the ability to withstand market risks.

“Indeed, over hundreds of megawatts of capacity are not too small, but compared with the GCL 13 GW wafer business, up a fraction of same. “Zhang told reporters,” the listed Super day together at Hong Kong with GCL-poly and Concord new energy listed companies, GCL photovoltaic industry will have 3 different platforms. For the PV industry of Concord for new energy and differentiated competitive advantage achieved without efficient components, and the use of this platform will be able to take control of component production. ”

“Reorganization is also intended to develop photovoltaic industries, rather than to capital operation. “GCL Lv Jinbiao, Deputy Chief, told reporters in remarks explaining the above question,” has the professional capacity of enterprises to which this is all stakeholders for rebirth of Suri selected bride. GCL do their best to take care of the interests of all parties and feel, reflects the responsibility of industry leaders. Of course, we have also benefited, that is in the process of restructuring on cooperative win-win empathy. We cannot afford to fail this new platform, we must work hard on the business aspects of technology, management and talent to do a career. ”

Merger and reorganization of all the difficulties

Led by the Ministry of industry and information technology, ministries involved in the merger and reorganization of the photovoltaic industry is speeding up implementation of the guidance.

Suri rationalisation plan by doing an excellent model for traders, but the merger and reorganization of PV industry in China remains very difficult. China PV industry association told Xinhua, so far, there are four problems PV industry in advance of mergers.

He said, first is a property of the industry. Production problems on the one hand, because polysilicon production project, simple mergers do not have economies of scale, polysilicon production equipment and once removed, less reusable, this also leads to mergers and reorganizations more difficult for this link. The other is the production of equipment problems, with advances in technology, production equipment prices continue to decrease while performance has increased substantially, it also makes some more in expansion is the acquisition of new equipment instead merger of existing enterprises, which led to mergers and acquisitions more difficult.

Followed by technology similar valuation issues. Is just one of a PV system components for photovoltaic products, which belongs to the industrial competitiveness is mainly reflected in the price/performance. In the case of photovoltaic technologies in China, China’s PV enterprises with strong heterogeneity. In the case of primary production are of a larger scale, the enterprise does not intend to continue in the market purely to increase capacity, even though there was expansion will also tend to buy new equipment for capacity expansion.

Is Government intervention again. Due to the photovoltaic industry’s contribution to GDP is higher, would also create more jobs, the local government is not willing to fail or be annexed. In particular, some local Governments had developed, for example through local financial institutions to support and, if these companies fail, will lead to a series of questions. Therefore, the efforts of the local governments can only help them support.

Finally, local “resources for projects” plan. Photovoltaic power plant approval authority has been delegated to local, local governments can be “flagging” issuance of developments to support local businesses in disguise. If by “flagging” tilt toward the local business; the resources-for projects aimed at “flagging” for enterprises in the local facilities; for photovoltaic projects at other local resources, which are not conducive to the advancement of the merger and reorganization.

Xinhua learned from the Ministry of industry and information technology to promote PV next merger and reorganization of enterprises working quickly and efficiently carried out, led by the Ministry of industry and information technology, ministries involved in the merger and reorganization of the photovoltaic industry is speeding up implementation of the guidance. “Trust the PV industry mergers and acquisitions guidance issued, can bring great impetus to industry mergers. “Zhang said.

Related links

The evening of March 4, 2014, *ST Suri said in a statement that “Super debt” interest on this issue will not be on the original coupon date March 7, 2014, paid on time and in full, only to pay a total of 4 million Yuan. At this point, “Super debt” officially defaulted and became the first defaulted bonds.

“Super debt” became the first case of defaulting bonds, it also proclaimed “Chinese-style” rigid payment most core areas of public debt “null default” was officially broke. Earlier, the “Super debt” creditors have instituted proceedings to the Shenzhen Municipal Intermediate People’s Court, sued Shenzhen and CITIC Securities, but had been rejected.

Ouyang zehua, film director of listed company supervision of the SFC, said the “Super debt” defaults are history’s first corporate bond market debt default interest payments, regulators will focus on whether the resulting risk of local or systemic.

He said Suri company listed in 2010, is mainly engaged in solar photovoltaics. Since the second half of last year, market liquidity is tightening, and some industry went into decline in the channel. During the process of decline, some of the company’s cash flow will be affected. “Super debt” is a typical marketing events of default.

He said that supervision departments will continue to do the phases of information disclosure, urging the issuer and underwriting agencies corresponding duties and obligations in the performance of bond issuance. Meanwhile, according to the perfect investor suitability arrangement on a case of corporate bonds, according to bond-market developments, features, combined with investor protection, improve judicial relief system of the bond holders ‘ interests.

The industry believes that “Super debt” events of default in the short run effects of the financing needs of the lower-level financing body, but in the long run, reduction of the credit risk pricing and implicit rigid payment break down, will strongly promote the marketization of interest rate in China under the background of capital markets continued to grow, for the future development of the real economy to create a multi-level financial market environment.

Original title: Suri reorganization the reorganization relief PV industry also needs work harder

2014 Forbes China rich list released the photovoltaic industry bigwigs have several?

Polaris solar PV net news: October 28, morning news, Chinese 2014 was released today by the Forbes China rich list. In this year’s Forbes China rich list, Chinese billionaires (billionaires) numbers rose substantially, increased from 168 a year ago to this year’s 242. China’s Internet entrepreneurs focus on this year’s list, top three respectively, Jack Ma, Alibaba, Robin Li, Baidu and Tencent pony Ma, according to another small series of statistics, this year, a total of 9 related to photovoltaic business from photovoltaic industry or the entrepreneur on 2014 Forbes China rich list.

Below, we yiyilai to see the 9 members:

No.5 renewable energy entrepreneur Li Hejun, whose net worth increased from $ 10.9 billion last year to $ 13 billion this year (79.56 billion yuan) in 5th place. Li Hejun hanergy holdings group limited, Chairman of the Board and Chief Executive Officer of hanergy holdings of his focus on alternative energy such as solar technology. At present, the Hina group total over 6 GW of installed capacity of hydro-electric projects and interests, total installed capacity of 131 MW of wind power, solar thin film solar power generating capacity has reached 3 GW.

No.15 36.11 billion yuan Xu jiayin, Fortune ranked in 15th place. Xu jiayin, evergrande real estate group is Chairman of the Board, residential, cultural tourism and FMCG, following the people’s livelihood after the agriculture, dairy, livestock and sports industry, evergrande real estate group in September of this year announced in Zhangjiakou, Hebei province construction investment of 90 billion yuan by the end of the country’s largest solar photovoltaic projects, heavily into the new energy industry.

No.22 Wang chuanfu to 287.6 billion in wealth came in 22nd place. He was Chairman and President of BYD company limited Board of Directors, BYD has been committed to the research and development of new energy technologies and applications, made electric cars, solar power energy storage power station, three big green dream. Represented by solar energy industry, BYD uses technology of vertical integration not only greatly reduce the cost of solar power, the introduction of solar power plant, and relying on BYD’s Fe battery technology, an effective solution to all kinds of renewable energy utilization in the process, need to store electricity generated this problem for new and large-scale use of energy to provide an effective solution.

Porters to 195.8 No.36 Shi Yuzhu wealth came in 36th place. Shi Yuzhu supposedly retired last year, but the fact is he still owns 95% shares of giant investment, as the actual controller, Shi Yuzhu now personally invested in the PV industry, building a Hulk energy co. Hulk will be mainly engaged in photovoltaic power plant and electric power development, acquisition, construction, operation and maintenance of assets, investment management and other main business, through acquisitions and construction of photovoltaic power plants based on assets, establish a global financing system, and expand the scale of assets, so as to strive to become a large supplier of renewable energy.

No.57 Kevin Lin to 14.08 billion dollars in wealth came in 57th place. Kevin Lin, now 52, served as first PV Corporation and as Chairman of Hangzhou, foster is a supplier of solar cells required to set up film and sheeting materials. This year, the company has been listed on the Shanghai Stock Exchange in September, shares surge 44% the same day. Forster at 27.18 Yuan issued this time, issue 60 million shares raised $ 1.6 billion yuan, or about $ 266 million.

No.78 11.32 billion Yuan Zheng JianMing Fortune ranked in 78th place. Zheng Jianmin is founder and Chairman Asia Pacific resource development investments limited of Hong Kong, Zheng JianMing and Hong Kong Asia-Pacific resource development investment company focused on providing solutions for low carbon cities of long-term investments. In November 2012, Zheng JianMing acquired shunfeng power International Ltd 30% shares, shunfeng photovoltaic soon thereafter announced its huge power station construction, 2014 3GW installation to complete its goals, for the largest enterprises. Changzhou shunfeng photovoltaic PV platform subsequently, Zheng JianMing and conducted many clean energy investments, including the acquisition in March 2014 Suntech Suntech subsidiary, price of 3.5 billion yuan. Recent solar energy investments are estimated to be nearly $ 20 billion to the company, making it the world’s largest clean technology private equity investors.

No.178 Nan cunhui 7.1 billion dollars of wealth ranks 178th. Nan cunhui is Chairman of zhengtai Group Corporation, 2006, chint entered the field of solar energy. Nan cunhui created the two companies: astronergy solar and chint new energy development company. The former batteries and components, which will focus on power plant investments, the construction and operation of business.

No.216 Lu Yonghua couple with wealth ranks No. 216 of 6.24 billion yuan. Lu Yonghua, incumbent linyang electronics Chairman and Managing Director, in March 2012, linyang electric said in a statement, the company will invest 100 million Yuan to set up linyang new energy technology limited (hereinafter Solarfun), is mainly engaged in photovoltaic systems, photovoltaic power plant engineering, energy efficiency, management of product design and LED business. 2010 to sell out and quit the PV Lu Yonghua, back in another way, the company is still named Solarfun. During a media interview, Lu Yonghua said: “remain bullish on the PV industry, the industry is still a blue ocean. “In 2014, company revenues to 844 million dollars in the first half, an increase of 10.83% to achieve net profit attributable to the shareholders of listed companies of 135 million Yuan, an increase of 15.47%, corresponding to EPS of about 0.38 Yuan.

No.369 of 4.47 billion yuan Cao renxian Fortune ranked No. 369. Cao renxian General Manager Sun power, sunlight power supply to power new energy equipment manufacturing start, the core product is the inverter. In 2013, Sun power is the fourth consecutive year to become China’s largest market for PV inverter suppliers, accounting for 30% per cent of industry revenues. Companies in 2014 revenues of 931 million yuan in the first half, an increase of 28.8%; net profit of 9,563.270,000 yuan, an increase of 77.4%; EPS0.15.

Original title: 2014 Forbes China rich list released, several photovoltaic industry bigwigs?

Deserts of Tengger Desert is emerging largest photovoltaic power plant (photo)

Polaris solar PV net news: reporter recently came to the southern margin of Tengger Desert, desert in Zhongwei city of Ningxia photovoltaic industrial park interview, learned that here was the rise of the country’s largest photovoltaic power plant in the desert. This project combines the development of photovoltaic and desert control, water-saving agriculture, creating a precedent for the success of the country and the world grid-connected PV power station in the desert, which centre-backs governance environment and new energy industry plays an important role in the development, with significant economic, environmental and social benefits.

Photovoltaic power plant in the desert (Yang Guang Lian Jun network reporters photo)

In order to make full use of and play Centre-half desert light and heat resources, vigorously develop new energy industries, Zhongwei Ying yan roadside desert in shapotou, planning and construction of photovoltaic industrial park in the desert. Reporters at the South margin of Tengger Desert, North of the ALXA League, Inner Mongolia region to see acres and acres of solar panels extended, at first glance, like suspending a touch of blue at the Golden Desert of the sea.

PV power station has been completed (photo journalist Lian Jun Yang Guang network)

By 2015, Zhongwei city, Zhongwei city of Tengger Desert, Gobi desert to produce 1500 megawatts of photovoltaic power generation base. While development of photovoltaic power station is under construction, actively exploring the development of “new topic”: development of solar photovoltaic power plant in the desert travel and tourism industries, complete the treatment of 100,000 acres of desert ecology. Plant’s perimeter with straw checkerboard sand-barrier and composed of sand-fixation forest shelter belt system, land formation and the shading effect of photovoltaic panels, PV panels installed drip irrigation facilities, growing green crops, PV plant growth is better than the rest of the region, control result is pretty clear. Realization of economic, social and ecological benefits of three wins.

Routine maintenance technicians of photovoltaic power stations (Yonge wide nets photo journalist Lian Jun)

Photovoltaic industrial park is divided into the desert in Zhongwei city, photovoltaic, photovoltaic, PV manufacturing industry district agricultural greenhouse area and sightseeing 4 planning area, and estimates a total investment of 20 billion yuan. About 1500 MW in installed photovoltaic capacity, currently stationed in 26 companies. Solar eco-agricultural construction mainly desert ecological agriculture and roof photovoltaic power generation project. Sightseeing areas planned Sightseeing Tower Desert Oasis tourist projects. The 88-metre observation tower under construction, upon completion, will become an iconic Zhongwei city, you can watch, solar garden and the desert landscape of the Yellow River.

Monitor on duty (Yang Guang Lian Jun network reporters photo)

According to reports, Defender whole photovoltaic industrial park planning and Park project is completed, will become a desert of the Northwest, as well as the country’s largest photovoltaic industrial park, can increase grid capacity of 2.8 billion per year, achieved an output value of more than 7 billion yuan, annual savings of more than 1.1 million tons of standard coal.

Inspection (Yang Guang Lian Jun network reporters photo)

Original title: deserts of Tengger Desert is emerging largest PV power station

“In line with local conditions and design”-PV inverter case

Polaris solar PV net news: according to local conditions, scientific designs–that is, according to the photovoltaic plant environment and network access requirements, reasonable selection of inverter type, meet power station construction, investors, operators and grid, such as in a safe, friendly, smart and efficient value requirements, maximize common interests of all parties, and promote the healthy and orderly development of the photovoltaic industry.

A classification and inverters, photovoltaic power plant application programme

According to the different installation environments, industry General desert power plant photovoltaic plant is divided into three main types, a Hill station and a rooftop station, all types of features, mainly in the country’s main area of application, as well as extend its inverter system shown in the table below.

Second instance, desert power plant photovoltaic Inverter selection

Desert power station, due to initial investments, operating economy and convenience, as well as grid access-friendly advantages, suitable for programme use centralized inverters. 1MW unit, for example, typical of desert plant-focused package configuration is shown in table 2, chart shown in Figure 1.

Figure 1 desert power plant integrated programme-system diagram

Given the enormous scale power plant, and reduce the cost of solar PV installed capacity annual objectives of stimulating effect, desert power plant is a key PV development in most countries and regions. Starting from the 2009 Northwest 10MW of concession projects, desert power station would occupy the largest proportion of every new photovoltaic applications per year. For desert power plant solutions is also growing, centralized inverters plus from the initial distribution, the development of container shaped platform centralized inverters programme, again by 2013-centralized inverters plus a standard ten-foot container shape the latest programme, continuous integration improved overall programme.

Figure 2 case-medium programme desert power plant application

Represented by SG1000TS the newest container programme, use the minimal shape of the standard container cabinets and built-in DC distribution cabinets and communications and other equipment. In keep core equipment SG500MX concentrated type inverse variable device efficient, and stable of advantage based Shang, SG1000TS advantage more obviously, overall system more integrated, and more simple, and construction shipped dimension more convenience, overall structure more strong, and long life, and can recycling, and standardization, and without outside packaging, it is current application most widely of to container for carrier of concentrated type programme, in in Inner Mongolia xinghe Car Lake station project, and TGP new energy Gansu Guazhou station project, and Xinjiang Wu Yi County fully art new energy station project, and Ningxia pingluo, grid-connected PV power projects and more widely in desert power plants.

Three, Hill power plant photovoltaic inverter case

Hill station is located in mountainous or hilly, rugged, generally larger, integrated into the transmission grid, integrated components in the early laying sites, recommend selecting multi MPPT centralized inverter, which has multiple MPPT function of centralized inverter; in the hilly terrain in a very complex, such as achieving the 100KW component the same toward the laying of difficult, consider string type. 1MW unit, for example, typical Hill station a MPPT-centralized configuration and system diagrams as follows:

Figure 3 Hill power station multi MPPT centralized system diagram

Hill power station was of PV Application forms recently, because of the same capacity and integrated into the transmission grid, can be subsumed in the ground station category. But due to the rugged, resulting in components are not consistent, and there may be a light shade caused by terrain, at design time, and needs in the desert ground station programme based on centralized inverters, additional MPPT function requirements.

Figure more than 4 multi MPPT integrated programme-Hill power station applications

As representative of the SG500MX-M multi MPPT centralized inverter, which is based on hydropower development in the hills of programme models, maintaining centralized inverter in economical efficiency, stability, and power grid-friendly advantages at the same time, keep the same layout components that scale in 125KW, taking into account the feasibility of the design, construction and operation of power generation efficiency. The models products three level schema, and four road MPPT module of design, and run more efficient more stable; can low voltage side directly parallel expansion, and support double winding transformer grid, and total die interference small, and harmonic content small, on grid access more friendly; keep all parts Qian maintenance and full module of design, convenient maintenance advantage, has application Yu Zhejiang, and Guangxi and Henan, to of multiple PV station project.

Four, roof power plant photovoltaic inverter case

Roof structure, shielding and inconsistencies, and recommend using string inverter; some industrial building roofs is colored steel, bearing limited centralized programmes can also be chosen. 1MW unit, for example, typical 10KV grid-connected roof-power string package configurations and system diagrams as follows:

Roof Figure 5-string package system in power plant

Close to the load side, most of the electricity generated by local consumption, you do not need remote transmission, rooftop power station is a key PV development in various countries. At home, the Golden Sun project, launched in 2009, and starting in 2013 to promote distributed PV applications, and are mostly roofing plant.

Figure 6 string type roof power station applications

Represented by SG30/40/50/60KTL series string type, for 10KV grid 400/480V grid access and access, is one of the world’s most widely used models, economy, stability, and flexibility advantages of the programme. The series string type products, the commercialization of the world’s most efficient solar inverters, DC arcing detection and protection, integrated DC fuse and a two-level fire protection features such as lightning and integrate Confluence, eliminate components PID function, in Germany and the Netherlands, and Austria, and Italy and the United States and other countries and regions of the plant is widely used in the roof.

Five, the summary

Inverter as a bridge between the component and the power grid, are key components of PV systems. Different applications, select the appropriate inverter, power generation and system to system lifecycle costs have a significant impact, you need according to the actual situation of different environments, in line with local conditions, scientific design, users, owners, and investors get the most reasonable levels of profit guarantee can be more beneficial to the healthy and sustainable development of the photovoltaic industry.

Original title: “according to local conditions, scientific design,” PV inverter case

Concerning photovoltaic power project file and the information online, such as completing the notice of

Polaris solar PV net news: provinces (regions and municipalities), national development and Reform Commission (Department of energy), the national development and Reform Commission of Xinjiang, the Agency, the State grid Corporation, China Southern power grid company, power company in Inner Mongolia and hydropower planning and Design Institute of water resources:

Pursuant to the National Energy Board comprehensive statistical information on the strengthening of the Division for photovoltaic power generation project and filing of notice of (the country’s comprehensive new “2014”, No. 389, hereinafter referred to as the notice) and other relevant provisions, and doing the building of photovoltaic power generation project and relevant online information, such as statistics and filing. Related matters are hereby notified as follows:

(A) to submit content. According to the requirements of the notice concerning statistics and submit the content.

(B) submit forms and schedules. Information, statistics and submit using the online reporting form. 2014 1 September submission of information should be completed by November 15. Provinces (regions and municipalities) of PV power projects and building operation will set 2015 PV of annual construction basis.

(C) other matters. I Council Qian a stage has Organization part area and the grid enterprise early carried out has PV power project information statistics and the submitted of training and the actual fill work, and in pilot based Shang, formed has energy competent sector operation process (video), and grid enterprise operation process (video) and can renewable energy electric price additional information management platform-PV power information statistics and the submitted system textbook (following referred to textbook), related online fill Guide tool (can to http:// Download, provincial (district, municipal) Department of energy, the State grid Corporation of China and China Southern power grid Corporation information online completing and refer to the relevant guidance documents. Each agency can log in information management platform for renewable energy electricity prices an additional query tracking relevant information (related operations, please refer to the textbook).

National information management centre for renewable energy (hydropower planning and Design Institute of water resources) should be accompanied by relevant units of account distribution, hardware acquisition and consulting services, and so on, pay close attention to information reported to work in conjunction with the regions.

Contact: National Energy Board new Energy Division of Xing Yi Teng

Phone: 010-68555840/68555050 (fax)

Email: [email protected]

National renewable energy information management center Ye Wang Yao Yifan

Phone: 010-51973122/51973620

Email: [email protected]