State Department counselor, former Vice Minister of Ministry of science and technology LIU Yanhua: grid companies hinder the development of distributed energy resources

Polaris solar PV net news: 2014 energy saving industry Summit Forum of China industrial energy efficiency and cleaner production association’s annual Conference held in Beijing on November 27-29th. State Department counselor, former Vice Minister of Ministry of science and technology LIU Yanhua said, the biggest obstacle to realization of ecological civilization is the energy structure is not resolved, the basic way to solve the energy problem is the development of renewable energy, distributed architecture is the fundamental approach to development of renewable energy services and connections. Its recommendations, first, to develop green energy technology. Second is to encourage renewable energy production and energy policy. Third, reform and restructuring of the electric power sector and the energy-trimming function and location. The fourth national road map for long-term development of distributed energy, reshaping China’s energy.

For distributed energy structure of the resistance problem, Liu said, the first obstacles to renewable energy Internet, because China’s power system is controlled by power companies, distributed energy sources, especially wind power, is unstable and prone to power fluctuations, so power companies don’t like that. The second policy barriers, the monopoly-related, traditional power systems is a top down system, distributed energy comes from the bottom up management models, change its management, so some management departments are not satisfied.

Following is a presentation video:

LIU Yanhua: leaders, ladies and gentlemen, today I’m going to report, entitled green development and innovation. We all know 18 clear Chinese ecological civilization construction, ecological civilization has three important symbol, one is green, the second cycle, the third is low carbon. Green is the direction, cycling is the process that is low-carbon is the basic index. Therefore, on such issues, I have some observations.

Going to talk about four, one is challenged, is a major trend, and the third is on the way out, and concludes with some recommendations for your consideration.

18 since the many directions for green development, such an orientation, for example an ecological civilization, optimize the preparation of land and resources in particular resource conservation, ecological systems, and so on. Special mention of market preparation resources, and natural environment the amount of space and energy consumption control, which are the basic directions. For China to solve the ecological damage, environmental pollution, resource shortages has been put on the agenda, the city can no longer continue, climate change is our responsibility, so that address these issues related to national security, but also our economic capacity, as well as environmental sustainability, to solve these problems, heart and energy terms.

We must push for a green, circular, low-carbon development. This is a picture, it is the night view, incomplete actually came out. This is a picture in 2007, another is 2030 forecast charts, comparison of these two pictures can be seen on the world’s energy increased substantially, but to consider where energy comes from and we continue to use traditional energy will cause more pollution and destruction of resources, so it is considered to have a new way of the world.

For China, this is the first issue, green power led green development. This image, and the following comment illustrates a problem, China relies on more energy in the process of economic development, energy underpins economic development. But this support cannot be maintained, because the amount of energy China uses too much.

According to statistics, China from coal powers into has coal imports country, 2012 imports 270 million tons, 2013 imports has 350 million tons, future also is more, addition I to everyone said a digital, China 2013 oil of imports external rely on degrees reached has 59%, gas of external rely on degrees is 30%, is expected to to 2020 of when, China oil of external rely on degrees will reached 70%, gas reached has 50%, that is we energy needs relies on foreign imports, It can keep the country safe, again one of these energy sources is not fully able to meet our energy needs? This is a question, which is energy security.

Then when it comes to the weather, we hope sky exists, but we want economic development to solve people’s lives to their livelihood problems, this is the next thing to do, how to do it, to energy conservation and environmental protection to address a range of issues.

Air pollution, people may be concerned about health problems, according to the results of such research of medicine, PM2.5 has caused has on human of serious hurt, it can sank in bronchial Shang, sank in alveolar Shang, makes people of development by effects, especially infant of effects is big, according to research a baby just was born of when has more than 3,000 multiple alveolar, growth process in the alveolar is constantly breeding, last adult is 300 million a alveolar, a children in this environment Xia grew up has, many of alveolar stop breeding, this kid grew up has on has may is lung function not full, this is on infant of effects. Another is caused in addition to lung cancer, this chronic blocking pulmonary diseases caused by air pollution is very high, a lot of people get sick because of pollution caused by, in addition to PM2.5 have 1.1, 1.4, can penetrate the human’s blood-air barrier, changing many of the physiological functions, resulting in mutations, so air pollution must harness, this is taken into account.

Why problems in such a large area of China’s air pollution, according to the project’s research, China’s coal use per square kilometer, this refers to Eastern China, he is 12 times the world average level of Chinese car density per square kilometer than United States, we are mainly concentrated in the East of China. These figures point to a problem, we have economic development depends on the density of energy use to support, a phenomenon caused by the haze is not difficult to understand, this phenomenon cannot continue, we cannot get money in life, after the old, and then use the money to buy life, which is not a good deal.

Minister of the Honourable Eric LI has devoted a, is the cost of resource and environment, Tsinghua University has a study that is using a social cost is 160 tons of coal. Say, health factors and, after it, the cost is much higher. So the use of traditional energy comes at a price, the future in our GDP accounting, in the entire process of production and use must be added to the cost.

Like not achieved energy emission reduction, we of economic on cannot dimension meter, many enterprise also will appeared collapsed, party of 18 big report proposed ecological civilization, energy emission reduction don’t just as is science problem also don’t just considered economic problem, while is political problem, relates to generations of long-term problem, currently China is for structure adjustment, we appeared this disease and that disease, all of disease combines in together, again abstract about, core is what, China of energy disease. Energy resolved, many of China’s problems, they will all disappear. This is about the first issue.

Then turned to second a problem Shang for, this is third times industrial revolution to energy field all penetration, we knows third times industrial revolution is to we quietly go to, it is a silent of competition, also indicates with all national transformation, this Zhang figure is select of is first times industrial revolution is to steam engine and coal of using for standard, second times industrial revolution is electrified and using gas for logo, second times industrial revolution to people brings has many of wealth, but also caused has environment damage, air pollution, ecological degradation, This mode cannot be maintained, and worldwide are undergoing transformation, green development as the core of the transformation. For the third industrial revolution we have studied, the core is formed three industry groups around the world, there is the whole production structure and way of life will change, is the transformation of into distributed, green industries, cloud clusters and 3D manufacturing, these three represent a basic trend.

For model is distributed, to change the traditional monopoly, from the bottom of a mode of production and way of life, to turn bottom up way, which distributed the main transformation is based on the construction of new energy.

For new energy, third industrial revolution made it clear five pillars of green energy, the five pillars include the shift from fossil to renewable sources of energy. Since it is said that renewable energies, it is according to different areas of a distributed collection of. Then it must have a collection and collection system. Also, it has to have a new energy infrastructure, which led to the smart grid, the new network, including micro-grid and local area network, while new energy has led to new vehicles. This is our understanding.

For third times industrial revolution for, we should realized that it has to we go to has, it is not distant of things, according to many of scientists, or is social from all walks of life of discussion, General of awareness, third times industrial revolution to mature of time, from now is probably 20 years, this 20 years within if achieved transformation has may with Shang era of new pace, if also stays in now of status Xia, May 20 years zhihou far of was throwing in has behind, for China, we cannot lost opportunities has, Renaissance times, when China began to ban the sea. The industrial revolution when we decline of the Qing dynasty. 670 in the last century, when much of the developed world in the West, when the four little dragons in Asia engaged in scientific and technological innovation, we engage in cultural revolution. Opportunities missed, chances are we still going to miss the third industrial revolution, we have to wait, from 18 report clearly put forward the transformation of the party, we understand the transformation of China in the new period, we will not lag behind, so I have to seize the time, this time for about 20 years.

Second is characterized by transition is what is infrastructure. Comprehensive restructuring of infrastructure, since China’s reform and opening up 30 years, 30-40% depends on investments in infrastructure for economic growth. Infrastructure has to be changed.

Third production and consumption model transformation, turning flat and therefore must break the silo-type sealing effect, encouraging broad participation of the whole society.

Chairman Wang Xiaokang said a special energy-saving environmental protection enterprises and polluting enterprises, we are too weak and must be collaborative.

So the third industrial revolution, first energy revolution, the system to form a green, renewable energy content, as we all know, I will not say more. In addition to strengthening renewable energy technologies, in particular, to strengthen another question, that is, energy management, we are to a large extent what has no energy, we have to a large extent the energy waste is too large.

For example China in 2013, a 11.8% of GDP in the world, but the energy we use, the use of coal in the world of 50%, our emissions of carbon dioxide by more than 25%, which means that China’s energy efficiency compared with the world average, was less than half. So how low efficiency of energy use at this time, Ah, this is a problem.

Energy services is a major problem, with energy efficient management, management can benefit. But there is no effective management, there is no amount of energy is wasted. Like a wind turbine, wind, machinery and equipment of our energy use old-fashioned, energy consumption is very high, this is the elimination series. So the State has started a layout for energy management and strategic planning services, the industrial chain, to break through the key technologies, but also to some markets, financial support, this is a basic direction.

For China’s energy, the way out only two. One is an open source, another is the throttle. Only these two go hand in hand in order to really solve the problem.

For distributed energy resources, and distributed renewable energy development, developed countries have come to what degree is it? We will probably have a basic review. Here we summarize a number of countries, such as Denmark, Denmark since 1990 to encourage distributed energy, Denmark currently distributed energy accounted for Denmark’s total energy demand of 61%, go ahead. Like the Netherlands in this country is small, the use of distributed energy resources totaled 50%, and Netherlands authorities the burden of 40% of carbon dioxide emissions is achieved by the distributed energy. Like Japan in Fukushima after pushing the efficiency of distributed energy quickly, he is promoting the legal protection of distributed energy development in recent years has developed rapidly, we should pay close attention to the development of his speed.

Another talk about the United States, United States with shale gas, renewables are a little more ignored, this is the impression of us, we and the United States exchange and analysis, United States did not relax. United States proposed a new energy plan, the proportion of renewable energy put forward an ambitious plan, the plan does not lower than China.

In addition, we also see, United States in a number of key areas, promotion of distributed energy resources on at least one point, United States 600 military bases, distributed energy for power supply, meaning that the urgent cases, United States military bases do not rely on outside power supply is able to meet operational needs. Through the construction of distributed energy resources through the conversion, will also have a quick development in the future.

For China, distributed energy resources, China is in its infancy, with the pilot, but it is still not mature enough. XI Jinping, especially the General Secretary and President Barack Obama signed the agreement on our future energy-saving emission reduction targets, determine the direction of a basic, I think distributed energy to quickly grow in China.

For distributed energy resources, and can be used in many areas. Such as transportation, construction, agriculture, urbanization or a modern building can be used for construction, and he should be pushing a good carrier of distributed energy. According to EU calculations, 40% of the world’s installed solar panels on the roof, you can meet all of the world’s energy needs, which means that distributed energy carriers, the question is how to develop. Technology such as photovoltaic cells, and develop fast, previously from poly to a monomer, and then to thin film solar cell, energy conversion rate is now increasing, in addition to using solar energy can also use wind, ground source heat pumps a lot of energy, and together building as a carrier of energy is that energy collector. Future tenants in addition to House energy producers and consumers. A household to seek out electricity, buildings forming a micro-grid, several buildings form a local area network in the community. Changed the structure of energy supply as a whole. Current energy supply system is power generation, long-distance transmission, high voltage, extra high voltage long distance transmission, transmission results are transmitted, the deployment of good management, but prone to accidents. United States appear larger blackouts, Union major blackouts, which is unstable. In 2008, icy snow calamity occurred in southern China, a snowstorm caused a dozen airports in the affected areas were closed, and a full range of power outages, so unstable, insecure.

Distributed energy sources, one of which is an energy source, and another more secure. This is for buildings.

Same is true for traffic, mainly by electricity and light fuel for transport vehicles will become more and more popular in the future.

The State Council recently made a strategic energy planning, it was November 20, a few days later, he proposed four strategies presented conservation priority, based on domestic, green and low carbon innovation-driven. This is four directions put forward five major strategies, we see these five strategies there was in large part through energy conservation and emissions reduction, energy saving and environmental protection measures to achieve.

For renewable energy, there is a latest statistics, statistical results is the world’s renewable energy capacity was 1.56 billion kilowatts, and fast development in recent years. For China, by the end of September this year, China’s total installed capacity of renewable energy 400 million-kilowatt, the whole world is 15, 4 in China, so China’s renewable energy production capacity is not weak.

And we have also developed quickly, we have the potential, the key is the next step on how to do, to do a first look at what are the resistance in the development of distributed energy.

First resistance renewable energy Internet access is difficult, because China’s Power Corporation is entitled to the entire electric power system control. Distributed energy sources, especially wind power, is unstable and prone to power fluctuations, so that power companies do not like. So we in China last year, and there is plenty of wind in the wind up from the year before, this is renewable energy access is difficult.

Second is the policy barriers and policy barriers and monopolies are associated, our traditional electric power system is the system from top to bottom, bottom up management model for decentralized energy, change its management, so there are some management departments are not too happy about it.

Third, absent energy services, since it is aimed at the needs of families for decentralized energy, aimed at giving it the appropriate service. But there is no system of energy services, although some energy contract management, there are many foreign companies in operation, but it is not comprehensive. The range of energy services, far exceeds, or mean far more than energy contract management of the content. Lots of services, we are now basically in place. That is there is a demand in the community, but no supply. Mostly failing to provide services, which is the major flaws.

And then you go on to the fourth question, based on our energy-saving environmental protection, green development, distributed energy resources we have several points to consider, these several points to consider the necessity to change China’s energy structure, it is necessary to change China’s energy mode of operation, we have to change the status and role of China in international competition.

Therefore, we propose, first, to develop green energy technology. This is a technical level in order to promote new energy services, as well as green energy business models to change, with new teams. One is a weak, weak is another staff, fewer people. We are professional talents were relatively small, another is to change some of the traditional mechanisms. For advice, I understand that the first thing to do is to modify the electric power law. To develop distributed energy, into electricity law go. Through legal means to change our conventional patterns of energy management from the bottom up.

Second to encourage the production of renewable energy and energy policy. Now, although there are some policies, these policies are put in place is very difficult. And policies are just a few of the, so to form a system policy can promote.

Third, reform and restructuring of the electric power sector and the energy-trimming function and position, because they are big, they are to play a leading role, function and location should change.

There is also a national road map for long-term development of distributed energy, proposed reshaping China’s energy. Dai Yan, Director of the German and the United States has a collaborative, United States expert proposed a remodeling energy. United States is now Germany accepted, are implemented through energy construction, so he passed through energy conservation and environmental protection must also be considered, through the Green transformation of the development of green, Green Remodeling new century.

I understand to achieve the biggest obstacle to ecological civilization, is the energy structure is not resolved. Has for the future development of the third industrial revolution, the ultimate way to solve the energy problem is the development of renewable energy, distributed architecture is the fundamental approach to development of renewable energy services and connections, and finally a consumer revolution and China’s energy revolution, the revolution and the revolution of institutional mechanisms it was acquiring General Secretary recently proposed a basic direction is imperative. The basic measure of the landing of China’s energy revolution is our subject of today’s meeting, energy saving and environmental protection, promoting energy conservation and emission reduction.

This concludes my report, thanks.

Original title: LIU Yanhua: grid companies hinder the development of distributed energy resources

Xindaxin: photovoltaic investment of 8 billion? It’s just planning

Polaris solar PV net news: xindaxin 27th, it said in a statement, the company will be held in Liaoning new new energy limited 51% transfer of shares to natural deer peak, the price will be securities and futures-related business with qualification appraisal firm appraisal report issued by basis for pricing. After this transfer of shares, xindaxin are no longer holding a new new stake in Liaoning province. This means xindaxin PV project two years ago to invest in the abortion.

Push after the announcement, some media said the new new photovoltaic project in Liaoning province with a total investment of up to 8 billion yuan, and years of losses, and sealed. But reporters found that as of October 31, xindaxin holdings 51% new new energy assets in Liaoning province totalled 309 million and net assets of only a few 46.19 million dollars, and falls far short of the 8 billion. So, “8 billion investment,” saying come from?

Reporter called xindaxin Securities Department, its staff, Tan said, is planning to invest 8 billion yuan, the actual investment is far less. Two years ago, the xindaxin had planned to build about 400MW of installed capacity of solar photovoltaic projects, so shout out to invest 8 billion “slogan”, but due to landform constraints, completion of the final project is only 10MW total investment also falls far short of the 8 billion yuan. Have audited financial data show that new losses on new material in photovoltaic projects for more than 20 million Yuan.

Have audited financial data show that new losses on new material in photovoltaic projects for more than 20 million Yuan. Financial sector shares in investor xindaxin transfer losses is generally interpreted as good news on the project, however, the xindaxin the stock market has been relatively flat, there is even a slight decrease, which was somewhat disappointing by investors. In this regard, Mr TAM also said that this is not very clear, said he personally thought maybe because investors ‘ understanding on this matter and is expected to be very different.

Worthy of note is the new PV industry losses were a result of new material due to the topography and local land policy restrictions and other objective reasons. This seems to make xindaxin decisions seem a bit too hasty and “belated awareness”. In this regard, Mr TAM explained that company early in the study were considered only in light conditions while ignoring the terrain factor.

Compared with other PV projects of investment company fled, 20 million yuan of losses did not seem to make xindaxin give solar strategy, xindaxin said the company transfer the implementation of the regional strategy and timely selection of lighting conditions and land resources is far more suited to the company’s own construction plans and areas of PV power stations construction. “This is mainly due to long-term strategic considerations, photovoltaic energy is clean and renewable, is conducive to the long-term development of the company. But at a later stage when the premises xindaxin will take a more cautious attitude to study. “Mr TAM said.

Original title: xindaxin: photovoltaic investment of 8 billion? It’s just planning

Lotus in Jiangxi Province: policies and services two-wheel-drive promoting photovoltaic power generation

Polaris solar PV net news: “until November 15, my PV electricity account capital of 6059.98 Yuan, new tariffs of more than 4,000 yuan this year. “November 20, was away after Zhu Jianbing buy PV equipment connect the phone, answered his question to the author very familiar, neat. When asked why the new tariffs this year doubled, he told me, is the last settlement schedule, second, equipment maintenance, and the weather helped.

In 2013, the PV as an innovative project in Jiangxi province, Zhu Jianbing first response and first put into practice. Lianhua County, in Jiangxi, State grid power company completed the reception, under the help of specialized services survey, access to a series of parallel procedures, cash settlement of electricity charges promises. “Clean energy does not suffer! “Zhu Jianbing PV power station KW,2013 5.6 years March on-grid power generation. Power station of this cost only 50,000 yuan (more than 20,000 yuan subsidy by the Government), to the current (November 15) in addition to self-generated electricity, electricity has amounted to more than 8,000 square degrees, selling more than 6,000 a year. His own innovations, always full of confidence.

Power supply enterprises in government policies and services under the two-wheel-drive, this year, the rapidly growing distributed power construction such as mushrooms, Lianhua. The first half of the County’s “million second phase of rooftop solar photovoltaic power generation demonstration project” 105 households have applied for registration, number compared to the same period last year representing an increase of 90%, some 500-kilowatt of installed capacity, annual output of nearly 600,000 degrees. In accordance with the new rules this year, Jiangxi province, Lianhua “million second phase of rooftop solar photovoltaic power generation demonstration project” energy subsidies can appeal to the provincial capital of more than 1.2 million Yuan. Meanwhile, Lianhua according to provincial government on promoting economic smooth growth several measures, looks at Yu solution current economic development and the enterprise operating encountered of difficulties and bottleneck, in funds operation Shang, will by each households 10,000 yuan of standard implementation subsidies, active advance “County PV power demonstration village”–square floor town rich tree village PV power project construction, to end of village strive to installation 80 households above.

At present, the industrial park, Lianhua first distributed photovoltaic pilot have grid power. It is reported that the project is distributed PV 5 industrial park, Jiangxi province, one of the pilot projects, with a total investment of 5 million Yuan, installed capacity of 300-kilowatt. In addition, also plans to invest 500 million Yuan to build solar power stations, Lianhua, which is on September 10 by the energy-saving solar technology company limited and PV power plant project awarded the contract signing ceremony, Lianhua, total installed capacity of 50,000-kilowatt, covers an area of 1639, the project is located in the Liang Fang Zhen AO on barren hills, West Lake. Here the light is rich in resources, resources annual utilization hours of 975-1000 hours of sunshine. PV power station project construction period is 6 months, the service life is 25, of generating capacity will reach 48 million project is completed, the year after.

Distributed power point wide and fast-growing conditions, State grid Lianhua County, Jiangxi power supply company always adhere to the “support, welcome, service” principle, according to the State power grid company work requirements in different provinces and, active local government related project implementation, extended service chain, take service of chess, promises to give every application for grid-connected users to enjoy the “nanny” service. Established specifically service institutions, developed residents distributed PV power access system programme template, site exploration and access system day within completed; on engineering intensive area organization concentrated acceptance, organization professional mechanic door service, by home by households individually project, strictly put good engineering implementation technology installation and Internet, and acceptance shut, strengthened standard management, perfect electricity settlement standardization system, guarantee customer proceeds timely settlement, active tie local government promoting clean energy and good and fast development.

Original title: Lotus in Jiangxi Province: policies and services two-wheel-drive promoting photovoltaic power generation

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Xindaxin 8 billion PV project for any forced sale?

Polaris solar PV net news: new new material today said in a statement, approved by the company’s Board of Directors, the company proposed to be held in Liaoning new new energy investment limited 51% transfer of shares to natural deer peak. After this transfer of shares, are no longer held in Liaoning new new stake in the company.

Addition to the xindaxin shares, and State power in China (Beijing) international energy investment limited and Wang Chenglin hold fresh new energy 37.96% and 11.04% shares respectively, the share transfer is completed, new new new energy and new material will no longer stock holdings. It is reported that the deer peak shares the transferee is a natural person, and its current logistics group in Western Liaoning province, President.

According to understanding, new Dah Sing material Yu September 2012 and Liaoning province Chaoyang County Government signed has merchants introduction funding agreement, intends joint in the can country electric (Beijing) international energy investment limited in Liaoning province Chaoyang County construction capacity about 400MW of solar PV grid power project, and joint venture registered established has “Liaoning new Dah Sing energy investment limited” to operation PV station project, project total investment up to 8 billion yuan.

Financial data show that as of October 31, 2014, new new in Liaoning province with total assets of 309 million Yuan and net assets of 46.1992 million Yuan January 2014-October, operating income 0,-22.1221 million yuan in net profit (unaudited).

Xindaxin evaluation of new new situation in Liaoning province, due to its restricted by many objective conditions, human, material and financial investment, Liaoning Chaoyang local land and building conditions and the company expected a gap, is not conducive to the realization of strategic objectives of the company.

Meanwhile, xindaxin believes that the holders in Liaoning new new all share, to avoid further new new energy company’s operating loss, effectively avoid risks, but through the construction of solar PV power plant layout of PV industry chain Terminal No change in overall strategy.

In fact, xindaxin at first, after investigation, identifying local light conditions suitable for construction of photovoltaic power plants, found in the actual construction process at a later stage be limited by factors such as land topography. General power plant construction unit at 10MW, led later completed construction of small-scale hydropower station operation and maintenance costs are relatively high.

In addition, local inputs such as land does not allow for rents obtained with longer maturities, allowing only transfer one way, causing companies to invest in the power plant project funding amount of one-time investment is too large, taken the company a lot of money resources and influence of photovoltaic power plant construction continues to grow. In April this year, xindaxin was supposed to be carried out on new new energy capital increase and share expansion, controlling stake indirectly transferred to dry and intellectual wealth, but due to the latter’s own reason, but terminated the capital increase.

Original title: xindaxin 9 billion PV project for any forced sale?

Cash capital increase made up to once again participate in the new sunlight for more than 4,000 stocks

Polaris solar PV net news: Delta participates in new daylight cash capital increase for a second case is expected investment of 1.062 billion yuan more than 4,000 shares Delta out of the solar industry, but through equity investment continuing to master solar manufacturing, new energy in maintaining zero-carbon homes product line.

Delta announces new solar increases for new daylight merging the Mong Kok to second after participating in private equity, private placement completed accumulated delta to hold new sunlight will reach 161 million shares, accumulated amount to 3.94 billion dollars, stake increased to 18.87%, cost an average of about at 24.47 dollars.

Delta does not want homeopathic exit when you can have the whole layout of solar energy, mainly due to a positive new developments in the energy market, the company plans a zero-carbon homes to solar modules generate electricity by itself after through lithium-ion batteries to store energy, then through the company’s own research and development of integrated control system for energy management and control, Delta has outlined the future of intelligence family look.

Original title: cash capital increase made up to once again participate in the new sunlight for more than 4,000 stocks

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Fellow of the China’s first solar-thermal power station officially inaugurated

Polaris solar PV net news: November 26, in Chuxiong, Yunnan in the solar thermal energy industry base Co Ltd (hereinafter “the solar base”) plant, Liang weiyan academician workstation officially inaugurated here, this is the area of Yunnan province and China’s solar thermal power generation currently only enterprise academician workstation.

On November 25 the day before, the second China Yunnan bridgehead building technology into matchmaking in Kunming of Yunnan province, Yunnan province, a total of 33 expert academician workstation award, CPPCC National Committee Vice-Chairman, science and technology Minister WAN Gang attends the meeting and awarding the Academician Liang weiyan workstation.

Map: Liang weiyan academician workstation unveiling ceremony

Chuxiong solar base Chairman Zeng Menghan in opening brand activities during said, Liang weiyan academician workstation is to Chuxiong in the high light hot solar industry base limited for led, and to China engineering homes Liang weiyan academician and the expert team for core, and to CAs physico-chemical by for relies on, common for solar light hot power system research of high-level technology innovation platform, target is through this a innovation platform accelerated advance dish type solar light hot power technology of industrialization. The building of the Academician workstation, will not only help promote the demonstration and application of solar thermal power generation technology also helps speed up the public understanding of solar thermal power technologies, lead to greater social and economic benefits.

On January 10, 2013, AVIC Xian Aero Engine Company Limited (hereinafter “air force”) built first at the local traditional dish Stirling generator system and the success of 20kW power, marked the beginning of the solar thermal power industry of Yunnan province entered a phase of rapid development. On March 14, 2014, the world first 6kW solar thermal acoustic generator witnessing the ceremony were held in local power generation. Chuxiong plan based on solar-powered base, investment of 500 million yuan in a local creating an annual production capacity of 25,000 units of solar thermal energy generation equipment green industrial park.

Figure: 5kW dish solar thermal power systems is generating

Reporters at the scene, equipped with a second-generation 5kW solar thermal dish solar thermal power generation system of engine is running stable, relative to the first generation, second generation product stability and reliability has been significantly improved. According to the field engineer, condensing temperatures reached above 500 degrees c in the day. The thermoacoustic engine with helium as the working fluid, heating system uses a micro-arc hexagonal mirrors of domestic enterprises, aperture area of 40 square meters.

Map: 5kW solar thermal generators work

By deep plowing and locally in Chuxiong, Chuxiong solar bases are expected to dish-type solar thermal power generation systems for distributed energy applications opens doors to large-scale production. Zeng Menghan said “the next step will be started to promote the construction of a 1MW power plant model, to further optimize the technology, and will accelerate the green industrial park to build bases for the progress of the company, realize industrial production as soon as possible. ”

Zeng Menghan valued this miniaturization of solar-thermal power generation systems and distributed applications market, he thinks this is dish systems and other solar-thermal power generation technology by different market positioning. He said “next solar base will focus on expanding in Chuxiong of Yunnan region in distributed solar thermal market currently locked the mouding in Chuxiong Prefecture has been as worthy of the first station. “To this end it has developed a smaller machine 500W solar thermal generator, which is a new development of high performance Thermo-mechanic.

Academician Liang weiyan, told reporters that “solar-thermal power can be fed to achieve its daytime and nighttime power are promising new energy technologies. Chuxiong solar base development of the dish solar thermal power generation systems will also increase heat storage devices of the future and realize the sustainable utilization of solar. ”

Original title: fellow of the China’s first solar-thermal power station officially inaugurated

Polaris solar network on November 27, 2014, news review

Polaris solar PV net news: Polaris solar PV NET Summary November 27 news, March 4 billion PV companies why favorite station? Photovoltaic Industry “golden period” really came? China: city development limited, small-scale solar photovoltaic power generation equipment, as follows:

4 billion foray into photovoltaic companies why favorite station?

Photovoltaic Industry “golden period” really came?

China: City small-scale solar photovoltaic power generation device development limited

Shanxi 5 counties included in the first batch of photovoltaic pilot counties for poverty alleviation

8 billion PV projects year after year xindaxin sale subsidiary total equity

Longi shares Li Wenxue, Deputy General Manager resigns

Changzhou shunfeng photovoltaic PV Thunder: 3GW photovoltaic power plant target does not change in 2014

Xu Ning discussion on building integrated photovoltaics (BIPV) in seven

Solar power really environmentally friendly?

Japan hot sun can last! Domestic shipments rose 15%

China’s energy development roadmap: action plan for energy analysis and trend analysis

Distributed PV systems with energy storage devices popular

Evergrande: transboundary PV bet beats

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Xu Ning discussion on building integrated photovoltaics (BIPV) IV

Polaris solar PV net news: the first phase we have referred to Times Square, fourth floor, Kiss+Cathcart of the implementation of the project the company also designed a number of well-known BIPV projects Stillwell Avenue Subway station in Coney Island, New York acquired United States Architectural Association 2007-renewable Awards, also known as the 2007 United States one of the top ten green buildings.

BIPV project of New York’s Coney Island Stillwell Avenue Subway station

Coney Island is located in the southernmost part of New York, there is a large playground and a beautiful coastline, is New York’s resorts. Stillwell Avenue Subway station in Coney Island, New York rooftop BIPV project, is the United States largest application of BIPV in public transport system project, Coney Island maintenance and reconstruction projects is also an important component, showing the energy and magic of Coney Island, and the New York City Government attaches to environmental protection.

Decorate the roof of the subway station 2730 PV Board, total area of 60000 feet can produce 200,000-kilowatt kWh of electricity per year, two-thirds of energy for operation of the subway station. The PV Panel is designed to be easy to replace in the form of expected lifespan of 25 years.


In Europe, the BIPV applications in public transportation systems more than the United States.

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President Xu Ning Rambo green building: architecture photovoltaic wrote in

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Xu Ning discussion on building integrated photovoltaics (BIPV) ter

Germany Berlin LehrterStation2002 years of using roof BIPV system, the generating capacity of the system is slightly larger than the United States of Kang Island Stillwell Avenue Subway station. In Finland many bus stations in Glasgow and Switzerland Munich station also BIPV technology is used.

Wal-Mart Supercenter honey Lake store photovoltaic roof power station

In China, the earlier BIPV application in commercial construction, Wal-Mart Supercenter honey Lake store is a success story. This is Golden Sun demonstration project, located in Shenzhen, invested by Shenzhen lanbo green building construction. Wal-Mart Supercenter honey Lake store is Wal-Mart opened its first Mall in China, Wal-Mart China’s first successful operation of rooftop solar photovoltaic power station.

Initially of difficult is due to this Mall is reform yilai of first a stores, so roofing of drawings are has cannot find, and this building of design and material are is from United States imports. so, at Blue Wave group in New York of design personnel after hardships, finally from United States of firm found only of a Zhang drawings, through CAs steel by of again check, issued has checking report, only makes this project to normal for.

404.905KWp Wal-Mart Supercenter honey Lake store roof BIPV system capacity, a total of 1723 polycrystalline silicon PV modules are installed, 100KW inverter 4, PV systems as a whole are considered, the roof load, resistance to typhoons, lightning earthing systems, system load changes in curvature and system efficiency in energy generation, heat-spots, and other factors. Due to the particularity of the roof, so in order to install photovoltaic panels, a special fixture is designed and applied for a patent.

More exciting is the last grid-connected systems. Because of problems with frozen foods, Wal-Mart is calling on the outage time must be controlled within two hours and frozen foods shall be destroyed over time. Due to the relationship between the business, blackouts will be arranged in 2:00-4:00, Blue Wave group of several young people in the provision of grid-connected time and completed a 6-minute closing, they sent a text message at 3:54 is: “it’s OK! can sleep. ”

Up to now, the whole system is functioning correctly, GWh electricity load of power consumption accounted for Wal-Mart 18%. Systems 139 tons of coal can be saved each year, about 397 tons of CO2 emissions.

“Author profile” Shenzhen blue wave green built Group (securities code: 430678) President, architectural design Division; has graduated Yu “mechanical design and manufacturing”, and “industrial and civil”, and “architecture”, and “business management learn”, professional, dip Kinky Yu architectural design, and structure design, and curtain wall design and construction, and BIPV photoelectric building, field more than 30 years, had led completed domestic more items PV building integration of pioneered practice, especially in building energy, and Technology of building capacity in the development and application of a strong theoretical basis and accumulated rich experience.

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Xu Ning discussion on building integrated photovoltaics (BIPV) bis

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Original title: Xu Ning discussion on building integrated photovoltaics (BIPV) IV

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Xu Ning discussion on building integrated photovoltaics (BIPV) v

Polaris solar PV net news: last time we spoke of BIPV applications on the public transport system in Europe. In Europe, the commercialization of BIPV project name is IEAPVPSTask7. Renewable energy bills and a few preferential tax rates and loan terms, spurred by Germany become the BIPV fastest the nation and the world’s largest markets for BIPV. Due to its perfect climatic conditions, Italy had been considered would become the leader of BIPV, but its Government agencies have serious bureaucratic obstacles to the industry in Italy’s push. Until 2007, in the enactment of the Bill of ContoEnergia, BIPV in Italy began to have some slow development. Spain’s photovoltaic market has been in a leading European, but not until 2008, with some changes, as well as the Government’s support for BIPV, BIPV in Spain markets gained in importance. At present, the BIPV application of most European countries are Germany, France, Italy and Spain. Greece, Portugal, Sweden and other countries also have some BIPV projects.




In Spain, Biscay, by BodgasItrurralde company to invest in an area of 500 square meters of greenhouses, which is one of Europe’s most famous light BIPV project, which also gained LEEDgold certification. The greenhouse area 5382 square meters, the BIPV of ceiling and walls are made of transparent material, power 30347kwh a year and reduce carbon dioxide emissions by 11 tons.

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Design and construction of the project by ONYX company. This is a global BIPV company. The company’s CEO told United States Professional Magazine GLASSMagazine predicted 2015 BIPV will become the most promising solar industry market, and believes that the time has come for the public to get rid of BIPV is a dark combination of solar panels and building crude stereotypes.

Dongtan Wetland Park Visitor Center PV curtain wall

Built by Shenzhen CSC-blue wave Green Group (former Bluewave curtain wall and photovoltaic engineering company limited of Shenzhen) construction of Dongtan Wetland Park Visitor Center is located in the East of the Chongming island of Shanghai, is located in the “Ramsar” wetlands, adjacent to national nature reserves, supporting projects to the 2010 Shanghai World Expo.

Dongtan wetland park planning and designing the visitor centre that has solar photovoltaic power generation, built every five to hundreds of metres, offers tea, canteen, toilets and other facilities. One of the biggest for a rest stop named “sea view House”, is a knowledge of popular science exhibition, dedicated to flora and fauna in the Park. Park visitors can walk short stay here, enjoy the surrounding scenery, or a short break.


Dongtan wetland park visitors centre, the elevation of 14.8 meters, covering an area of 3300 sqm, the ingenious idea of the architect, the whole building design with a unique gable architecture. South façade of the building curtain wall using transparent photovoltaic components, sun radiation, and gable architectural forms complement each other. Installation area of 1000m2, installed a total of 544 95W translucent Silicon double glass component, 6+6MM of double glass and laminated PV modules, Assembly dimensions for 1296*1128*12mm, transmittance of about 35%.

And building integrated PV grid-connected systems, inverse solar power into AC power into the national grid. After CSC-Shenzhen designed by Blue Wave group, construction work, after acceptance, system efficiency as high as 85%. Total installed capacity of solar photovoltaic systems this project is 51.68KW, with annual capacity of 49071.3KW/h,25 year lifetime cumulative power for 1226784.8KW/h. to reduce coal use 490.7 tons, 1223.1 tons of carbon dioxide emissions.

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Xu Ning discussion on building integrated photovoltaics (BIPV) IV

Original title: Xu Ning discussion on building integrated photovoltaics (BIPV) v

Chinese overseas-listed PV 2014 report third-quarter results

Polaris solar PV net news: as of now, there are branch, ja solar, Trina solar, and ceramics, Yu hui, Yingli, six Chinese overseas-listed solar companies, hanwha 2014 was released third-quarter earnings. 2014, the rising demand in emerging markets, global PV demand keeps growing, mainly photovoltaic industry shipments showed a good growth rate. From seven overseas-listed PV Q3 earnings report, solar net profit of more than $ 100 million, becoming one of the most profitable companies. Yingli, though still losing money, but its loss also narrowed significantly, from a loss of $ 44.3 million in the second quarter to the third quarter of a loss of $ 20 million. Here are 7 Chinese overseas-listed PV 2014 analysis of key data report third-quarter results.

Canadian solar

Reported third quarter of 2014, solar made revenues of US $ 914 million (about 5.626 billion yuan), rose 46.59%, an increase of 86.18% to achieve a net profit of 104 million dollars (about 641 million yuan); in addition, firm component shipments for the quarter up to 770 MW, the current global reserve about 1400 MW of large PV projects.

According to money, solar completed its third quarter in Canada Ontario sale of five solar power station, a combined value of $ 306 million (about 1.655 billion yuan).

In solar shipments in the third quarter, and includes systems and solutions business sales of 173 MW, compared with last quarter and the third quarter of last year was 70 MWe and 68 MW. Meanwhile, systems and solutions business’s percentage of operating income in the third quarter reached 53.8% (last quarter of 32.6%). In addition, Canadian Solar’s gross margin for the third quarter reached 22.9% (last quarter of 19%), up from a previous forecast of 19% and 21%.

Canadian solar expected 2014 component for fourth quarter shipments are expected to be between 810 MW-860 MW, operating income between $ 925 million-US $ 975 million, gross margin is expected to be between 17%-19%. Company fiscal year 2014 component shipments are expected from 2.5 GW-2.7 gigawatts, up from 2.73 Jiva-2.78 GW, revenues expected from the previously given $ 2.7 billion-$ 2.9 billion, up from 2.93 billion US $ 2.98 billion dollars.

Jinko

Solar total product shipments to third parties amounting to 708.2 megawatts (“MW”), consists of 658.1 megawatts of silicon solar modules, 303,000 kW and 19.8 MW of solar cells. This means increased 7.4% from 659.5 MW in 2014 and 2013 the total solar module shipments in the second quarter increased by 36.5% in the third quarter, from 518.9MW to 758.1 megawatts, including the 1 million-kilowatt, use of downstream projects in the company.

Total 26 billion yuan (United States $ 417300000) in 2014, representing a 5.3% growth in the second quarter, and a 30.5% increase from third quarter of 2013. Solar power income items, not including the tax effect of previous quarters, was RMB67.3 million (US $ 11 million), an increase of 10.4% in 2014, the second quarter to the third quarter of 2014, company revenue upside down 1.96 billion yuan (US $ 3.2 million) of VAT involves feed-in tariff. Electricity revenues, including the impact of value added tax, was 47.7 million Yuan (US $ 7.8 million) in the third quarter.

Gross margin for the quarter was 20.6%, of which 22.6% in the second quarter of 2013 and 2014, compared with 22.3% in the third quarter. Operating profit was RMB239.9 million (United States $ 39100000), and from operating income compared with RMB251.6 million in the second quarter of 2014 revenue from RMB244.3 million in the third quarter of 2013.

Net profit belonging jinkosolar holding limited’s common shareholders was RMB280.6 million (United States $ 45700000), compared with net profit of belonging jinkosolar holding company common shareholders of RMB138.2 million in the second quarter of 2014, net profit belonging jinkosolar holding company common shareholders of RMB103.5 million in the third quarter of 2013.

Trina

The company reported third-quarter net income of $ 616.8 million, over 18.8% from the second quarter of 2014. Gross profit of $ 102.8 million, over 28.1% from the second quarter of 2014. Gross margin was 16.7%, and the second quarter of 2014 15.4%. Income from operations of $ 35.6 million, over 127.1% from the second quarter of 2014.

Components are shipped to 1063.8MW in the third quarter, quarterly shipments of components beyond 1GW milestones last quarter of 12.8%. Component shipments include shipments of 936.8MW external and lower shipments of PV power projects 127MW and 2014 second-quarter shipments of 943.3MW,2013 years 774.6MW in the third quarter.

Trina solar noted that gross profit margins continued to grow due to the change in sales mix, to Japan’s shipments increased, but to the United States shipments are reduced. The company also noted that, because of greater economies of scale and improve operational efficiency, within the quarter it had reduced manufacturing costs.

Trina says speculated at end of third quarter of 2014 it in-house ingot and wafer production for the year is 2.0GW and 1.6GW respectively, PV cell and module production is about 2.9GW and 3.6GW, respectively. In 2014, the fourth quarter, the company expects, shipping 1045MW to 1095MW PV modules, of which 40MW to 60MW will be shipped downstream PV projects. The company expects its 2014 mixed fourth-quarter gross margin of 14.5% to 15.5%.

Ja

United States listed company ja solar PV reported released the evening of November 18, the company’s third-quarter revenue surged. Total revenues of 3 billion yuan, up 71.8% per cent, 24.7% per cent higher. Product gross margin was 15%, improves 3.7% compared to last year, the chain increased 0.2%. Components business and the strategic fit, JA Solar’s operating profit in the third quarter reached 189.6 million Yuan, compared with 31.6 million dollars of the same period in 2013 and 89.7 million dollars in the second quarter of this year had surged. From the perspective of net profit, the company’s net profit for the quarter reached 155 million yuan in 2013, third-quarter net loss of 227 million Yuan, 40.1 million Yuan profit last quarter also has improved a lot.

According to the company’s financial reports, PV product shipments 785.4 megawatts in the third quarter, up and ring up 57% and 15.2%, respectively. JA Solar’s revenue and shipments from the judging has not previously announced results of the high component maker company. Latter’s revenues in the third quarter, shipments rose up 47% and 19.2%, respectively.

Third quarter, components, processing components of the company’s total shipments of 693.5 megawatts, up and down the chain jumped 127.4% and 55.6%. Meanwhile, ja solar cell shipments in the third quarter to 91.9 megawatts, up and down the chain by 52.9% and 61.1%, respectively, indicating that JA Solar’s strategy shifted from battery component and will begin work.

Renesola

On November 26, 2014, Zhejiang Yuhui solar energy limited (hereinafter “renesola”) announced that its components with wafer shipments in the third quarter a year, and the chain are both declines. However, the company managed to increase its gross profit margin to 15.3%. It is estimated that 2014 PV module shipments in the fourth quarter will amount to 460MW 480MW, gross margin would be about 13%.

2014 report third-quarter results summary:

PV module shipments for 462.2MW and 2014 second-quarter shipments of 498.7MW,2013 years 462.9MW in the third quarter. Wafer and module shipments totaled 663.8MW, 2014 second-quarter shipments totaled 698.3MW,2013 in third quarter to 851.0MW.

Net revenues of $ 372.5 million in 2014, $ 387.1 million during the second quarter, third quarter of 2013, net revenues reached $ 419.3 million.

Gross profit reached US $ 57.1 million, gross margin was 15.3%, 2014 second-quarter gross profit of $ 56.9 million, gross margin was 14.7%; in 2013, gross profit amounted to $ 36.7 million in the third quarter, gross profit margin was 8.7%.

Operating income was $ 8.5 million, operating margin was 2.3%, and 2014 second-quarter operating earnings of $ 10.6 million, operating margin was 2.7%, 2013, third-quarter operating loss of $ 180.3 million, operating margin was-43%.

Net loss attributable to holders of ordinary shares of $ 11.7 million and basic loss of $ 0.06 per share and diluted shares, each ADS (United States depository) basic and diluted share loss of $ 0.12 a share (1 ADS equals 2 ordinary shares).

By the end of 2014 to the third quarter, the cash and cash equivalents and restricted cash totaled $ 196.7 million in 2014 and $ 218.8 million in the second quarter, 2013, $ 438.5 million in the third quarter.

Net cash flow from operating activities by $ 10.7 million in 2014 and $ 40.6 million in the second quarter in 2013, net cash flow of $ 79.6 million in the third quarter.

Ying Li

Results showed that Yingli, total revenue of 3.3852 billion yuan in the third quarter, net loss of 122.8 million dollars, losses narrowed. Third-quarter gross profit of $ 115 million, gross margin was 20.9%. Operating income was $ 32.5 million, an operating margin of 5.9%. Third-quarter net income of $ 551.5 million, while revenues amounted to $ 549.5 million last quarter.

However, the company is still losing money, reported third-quarter net loss of $ 20 million lower compared with the second quarter net loss of $ 46 million in 2014, representing a net loss of $ 55 million in the first quarter lower.

Performance points

Income of 3.3852 billion yuan.

PV module shipments total 903.4 MW. Last quarter shipments of components of 887.9 MW, rose 1.75%.

Gross profit 706.1 million Yuan (US $ 115 million) last quarter was 532.1 million Yuan ($ 85.8 million) and gross profit 20.9%, last quarter to 15.6%.

Operating profit of 199.7 million Yuan (32.5 million dollars), operating profit margin 5.9%. Last quarter’s operating loss of 85.9 million Yuan (13.9 million dollars), operating margin was-2.5%.

Adjusted non-GAAP basis, earnings before interest, tax, depreciation and amortisation 495.7 million Yuan (US $ 80.8 million).

Net loss of 122.8 million Yuan (US $ 20 million) and a loss of 0.68 Yuan per share (US $ 0.11). Net loss for the last quarter was 285.2 million Yuan (46 million dollars), first-quarter net loss of 341.8 million Yuan (US $ 55 million).

Hanwha

Third quarter of 2014 thanks to components shipments improving, mainly to China’s shipments, revenue growth. PV module shipment revenue in China is for the first quarter of 30%, and only for 6% the second quarter of 2014.

The company reported third-quarter income of $ 195.2 million, up 8.2% from last quarter, shipments including hanwha QCELLS (HanwhaQCELLS) component processing services, quarter over quarter increase from 9.9% to 373.2MW. Machining service revenues of around 10%.

Operating loss was $ 11.9 million, while last quarter’s operating loss was $ 6.5 million, mainly due to shipments to China increased due to lower average selling prices. Operating margin fell from-3.6% to-6.1%. The company reported a net loss of $ 11.6 million for the quarter.

Hanwha energy expected 2014 components shipped between 400MW and 425MW in the fourth quarter, annual shipments of components for 1.43GW to 1.46GW, compared with the previous target decreased from 1.5GW to 1.6GW. PV module processing services will account for 2014, shipments of 25% to 30%.

Original title: 20,143 for Chinese overseas-listed PV enterprises quarterly

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Colin clean dish-Stirling pilot plant in Erdos depth resolution

Polaris solar PV net news: in September 2012, of disc sitelinguang, China’s first thermal power plant model officially put into operation. The power station is located in wushen banner of Ordos in Inner Mongolia, the margin of maowusu dessert. Power station consists of 10 main dish Stirling power of 10kW unit, and after product upgrade, currently 10 11kW dish Stirling power generation units, the total installed capacity of 110kW.

The plant owners to huayuan group in Inner Mongolia, project General Contracting and design side for Sweden Colin clean energy company (hereinafter “Colin clean energy”), Dalian honghai disc supplier for new energy development co., Ltd. Project by a Stirling power generation unit, the disc and track systems, zone control, and SCADA systems and weather monitoring systems, and so on.

Project system overview

Stirling engines: Colin Stirling generator of clean energy production originates from SoloV160, V161 is developed on the basis of the engine and in the United States at Sandia National Laboratories, France Research Institute (CNRS), Spain and test runs, in 2006, with more than 2 million work-hours of operating experience.

Figure 1: internal section of the Stirling engine

This project uses a Stirling generator uses the C11S model rated power output of 11kW. Thanks to Alpha twin-cylinder system expansion and compression of the separate single-acting piston, efficiency of power generation reached 25%, while ensuring a long and maintenance-free operation.

Disc and track system: disc using open-plus-closed-loop control mode. In open loop mode, the tracking system with its known locations, given time and an algorithm that calculated relative to the Sun’s “should be” angle, positioning and, depending on the angle and quickly bring the dish to the basic location tracking. In closed loop mode, the tracking system using sunlight entering an exact measurement of the sensor beam angle, to fine-tune the dish position, so as to achieve the purpose of accurately tracking the Sun.

Figure 2: a dish Stirling power units

Zone control system: dish-Stirling Park control system management unit and related to the operation of electrical and electronic equipment, switchgear and transformer from a monitoring zone controller (PLC) is responsible for coordinating parks community controllers, transformers and high-voltage switch cabinet to ensure proper distribution of power. When running in a zone configuration mode, dish-Stirling unit as a “slave device” run, Park District controller at this time indicating unit conversions between various modes.

Park Community shall, through their controllers with ModbusTCP and the PSC system and supervisory control and data acquisition system (SCADA) exchange of information among, SCADA (supervisory control and data acquisition) systems in the control system plays role of the top-level system, this system is used to set the key parameters of intervention in automatic operation, and is used to store and present all system components with communication interface to receive data.

Weather sensing system: utility-scale Park will be equipped with weather sensing system at two levels:

1, from a campus community level sensor system to measure wind direction, wind, temperature, air pressure, air humidity and rainfall. From the Park District the controller’s local data will be Park use of sensors, these data exchanges to monitor zone controller is used to perform pattern analysis and early warning within the Park.

2, equipped with weather radar systems or the establishment of a local park-level interface with national weather radar systems, aims to receive severe weather alerts.

Park place: among them, the Park, white container in Cabinet the control center for the entire Park, which includes: distributed power systems, and grid-connected systems, zone control, and SCADA systems and weather monitoring systems and switchgear in the zones, and so on.

The commercial zone of the demonstration zone configuration with a 50MW identically configured, that is easily expanded to 50MW will power station on the basis of this scale.

Figure 3: layout of Stirling solar Park

Analysis and capacity calculation of local resources

At present, solar solar resource estimates and projections in the field there are a number of different tools and information sources. We have local solar resources assessment is based on our internal analysis and the comparison of different data sources, and listened to the opinions of experts.

Based on research and surveys in the same area, different sources describe the solar resource is very different. Use only solar radiation of the local weather station data are given by the instrument may be compared with the actual lower, because they measure the actual operational status of the device, we do not know, such as dust cover may result in deviation of the measurement data. If we just use satellite data or a calculation model based on statistics data tends to be slightly higher than the actual data is not enough to guide us for accurate power estimate.

We use the sources of data used in the calculation and prediction of solar irradiation completely transparent manner, these measurement data not just from the local weather station, or base station, also combination of statistical models and satellite measurements of the region, namely Meteonorm database. The calculation method in the data layer is credible, also referred to a local weather station data, Meteonorm global meteorological reference manual can be found on the details of the relevant data.

Meteonorm is a comprehensive weather database, its forecast of meteorological data is based on any “standard meteorological year” model built, its data is based on a large number of data points and results of sophisticated mathematical models.

We at two locations on the ground for the “standard meteorological year” analysis:

Figure 4: Yulin, the DNI annual data



Figure 5 above shows the ejin Horo banner of DNI and average wind speed and temperature data

Figure 6 Sterling relationship between power unit and DNI (considering the outside temperature)

Capacity calculation: for solar thermal power plants, and real-time capacity with the addition of sunshine at this time is related to other, and wind speed and temperature with the outside world also has something to do with, for Stirling power units, due to their principles is the use of thermoelectric power generation, so the outside temperature, the lower the higher power generation efficiency, as shown in Figure 8.

We estimate on how much electricity the garden based on Meteonorm meteorological standards years of data, energy calculations, reads a DNI data every 6 minutes, while the outside temperature and wind speed into account, and multiple stacking to get estimate for annual generating capacity, the resulting annual generating capacity of approximately 210,000 kWh, can reach about 240,000 kWh after the upgrade.

Figure 7: the relationship between the DNI and the power output of the actual sample diagram (based on 37,000 sampling points)

Figure 8: the percentage by the actual runtime of the months-long

(Under the irradiation conditions of the device, all devices every month while running the length of the proportion of total working time, with an average of 96.4%)

Notes of the reporter: dish-faced sitelinguang for application in the thermal power generation technology, such as technology, costs, operation and maintenance, and many other problems, how to solve these problems is the saucer technology professionals are thinking about the problem. Of disc technology currently engaged in research and development to promote business in China on the Western air power, Xiangtan electric group, large group, honghai under new energy, a large number of small private enterprises, more Cleanergy and other foreign manufacturers. But these companies operate independently, a lack of cooperation, this dish technology core technology exchanges and cooperation in the performance of the Stirling engine becomes even more evident.

It must be admitted that was Stirling engine similar to the aero-engines, and has sophisticated features and disc makers will now do is such a high-end product applied to civilian power generation market, the expected degree of difficulty. In the military field, a Stirling engine application of market-oriented without too much consideration, and in a competitive energy market, its toe-hold must be able to stand the test of the market.

At present, the disc manufacturers generally offered to drive cost down of disc system is the best way to achieve large scale manufacturing of the product, the case is given a large dish of 50MW power station can bring about significant cost effective on a large scale, but the question is who’s going to do a large-scale power station? In didn’t understand the technology and declining costs of space cases, no one is willing to take such risks. Colin Ordos 110kW clean energy demonstration power plant is now built in the country’s first large-scale demonstration significance project, its actual operation results can serve as important reference project investor, its operational experience can also provide important learning blueprint for the disc industry.

This article was written by Colin clean energy stakeholders, Colin clean craving by sharing, let more people know, the attention of dish-Stirling technology development and application. And share is the dish solar thermal power generation currently lacks spirit. Colin follow-up will clean the dish solar thermal power plant model explains the actual operational situation in more, so stay tuned.

Original title: Colin clean dish-Stirling pilot plant in Erdos depth resolution

Polaris solar PV NET weekly Hots collection (11.21-11.27)

Polaris solar PV net news: policy review

1. Bank credit to invest in PV industry policy (2015)

This policy, the term “solar” is defined as a National Bureau of classification of the sector (GB/T4754-2011) standard C2664A in electronic semiconductor materials used in PV manufacturing, C3825 PV manufacturing equipment and components [1], D4415 solar power.

Due to the photovoltaic industry is a growth industry, corresponding to the national standard industrial classification is difficult to directly, so banks will be the main business part photovoltaic power generation system Business Division for the photovoltaic industry. Actually belong to the photovoltaic industry, but the GB range corresponds to the banking industry for non-PV, you can refer to this credit towards policy implementation.

For more details

2. Hangzhou release distributed PV project subsidy notifications

For implement implementation Hangzhou City Government on accelerated distributed PV power application promoting industry health development of implementation views (Hang Zheng letter (2014) 29th,), accelerated advance I city distributed PV power application, on time completed Province issued I city of PV power installed target task, according to municipal government (House Office Jane complex subsection B20141619,) Jian Fu single spirit, now on I city distributed PV power project funds subsidies related matters added following:

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Market review

1. various types of capital surges hit photovoltaic business worries behind the scenery hidden

At present, on promoting the healthy development of the photovoltaic industry, along with the State Department advises the introduction, as well as the recently released by the National Energy Board issued the notice on the further implementation of distributed photovoltaic-related policies, China PV industry country policy support and technical innovations, such as good news overall signs of obvious, all kinds of capital pouring in. However, PV is an industry heavily dependent on Government subsidies, if government subsidies of variables, the entire photovoltaic industry profits will be overturned.

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2. policy market together with photovoltaic industry into “Golden development period”

In recent years, the industry giants such as Huawei, evergrande, and Central stake, Solarfun Rainbow electronics, refinement and a number of listed companies, were mightily into the photovoltaic industry in the depth of winter. Behind this heat share investments, is good policy frequently introduce and the PV market demand continued to pick up. Under the policy and market forces, this year and next will usher in a rare period of investment, the development of the photovoltaic industry, among them, and downstream photovoltaic plant will be the various capital “battleground.”

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3. the PV seeks end of “shock troops”

National Energy Board November 20 release data, the first three quarters of this year, when national photovoltaic power generation is about 18 billion-kilowatt, equivalent to 200% 2013 as a whole generating capacity. The first three quarters, the national new PV on-grid capacity 3.79 million-kilowatt, among them, the new grid-connected PV capacity 2.45 million-kilowatt. Industry experts believe that, although the first three quarters of new grid-connected PV capacity just 3.79 GW, but last year completed new installed capacity of 10 gigawatts is no problem, or the total number up to 12 gigawatts. Factor is installing the tide has come.

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4. Central Bank rate cut PV net profits or increased by more than 3%

After the Central Bank announced the rate cut, if some companies are running required banks large loans for PV power plant project, it may mean that the company’s loan interest rates would reduce the return on investment be increased.

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5. photovoltaic operation and maintenance difficult game-changers

Integrated view, led to PV station shipped dimension market needs insufficient of causes, both PV station investors investment accounts different of factors, those not intends to long-term holds station of owners for run maintenance by can brings electricity of upgrade, may does not value; and has shipped dimension industry itself of causes, trapped Yu development cycle more short, factors, how since card is due to run maintenance brings has electricity of increased, is shipped dimension enterprise had to face of problem.

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6. China: City small-scale solar photovoltaic power generation device development limited

Household solar power generation equipment is very popular in rural China; families are used to generate electricity or water were installed on the roof of shimmering solar panels. The problem is, the city does not appear in similar situations. While the reason for this is because, the inability to achieve the balance of costs and benefits, another reason is the price of residential electricity consumption in China remains relatively low.

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Comment article

1. the “flagging” sale “a two-edged sword

National Energy Board recently issued about reselling is strictly prohibited “flagging” measures for China PV industry, can be a “double-edged sword.” This measure if you want to reduce the burden on enterprises, rent reduction effect, directly depends on the implementation of the policies of the local government, including record-keeping policies and procedures transparent, remove front and additional conditions, such as in the project record.

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PV installed capacity is only 9 month of 4GW 2.2014 years ago?

Market is to sharpen the ruthless, market performance is made up of different investments and game logic behind the game’s comprehensive response, according to media reports: “third quarter of 2014 years ago, national new PV on-grid capacity 3.79GW. “The Department of energy is released. This article is about to unveil why 2014 1 September 4GW installed all the answers.

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3. PV manufacturers cut: happiness is better all of a sudden

The evening of November 21, after the Central Bank announced the rate cut, many PV companies excited friends: laments a world less side, side murmured it could send less money to the Bank.

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4. place des Vosges PV recorded the rise and fall: “towel King” why Yan Qi?

After 6 years, the “towel King” of the Vosges shares have been heavily involved in the PV industry’s strategy of complete collapse. The evening of November 21, Vosges stake announcement said the company intention to exit the PV industry, will sell all PV projects related to production equipment.

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5.4 billion foray into photovoltaic companies why favorite station?

Now, with fangda group, evergrande real estate, Shi Yuzhu’s Green Giant and other companies cut many traditional fields, such as enterprise after the PV industry, one finds: a power station as an opportunity, enterprises can achieve new energy transition available to investors of all ages, take this opportunity to improve your cash flow and improve operational capabilities, good returns on investment.

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Enterprise version

1. the Ministry announced a third batch of photovoltaic entry list of 19 listed (table)

According to State on promoting PV industry health development of several views (country sent [2013]24,) of requirements, according to PV manufacturing industry specification conditions and the PV manufacturing industry specification bulletin management provisional approach, by Enterprise declared, and provincial industrial and information competent sector verification recommended, and expert review, and online publicity and the site sampling, now will meet PV manufacturing industry specification conditions enterprise list (third batch) be bulletin.

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2. constant: transboundary PV bet beats

Evergrande, these two words just like Xu jiayin in two meetings with the Hermes belt, in 2014, much industry and investors attention. Of course, concern has nothing to do with Hermes, but its constant turns, good style of a bid to open up, with a fashionable word, is cross-border. Evergrande investment photovoltaic twice in a row in less than ten days, can be said to be playing a lot of. So, entering today’s hottest photovoltaic industry, evergrande would appreciate what recent multi-billion-dollar investments and what it can bring to the boss?

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3. Suntech reorganization case to explore a road to new trial

Suntech restructuring case for PV industry settlement trouble not only provide the path back to life, as well as other difficulties offer meaningful reference to industry reorganization, for how to rescue troubled firms in the sector trough, and explore a new path to an effective trial.

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4. inventory: “not of first building” violations by notification warning of photovoltaic companies

On November 17, the National Energy Board regulatory Office informed ten new energy enterprises in Jiangsu Province “built not of first, early starts” malpractices such as construction issues. Was informed the enterprise such as energy saving, long Yuan and Huadian in Central enterprises subordinate units and sumec Dongtai power investment company limited, Jiangsu, Nantong building sea energy enterprises in Hong Kong, warning: no power license violation.

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5. Rainbow group “grievances” against a dollar sale its two subsidiaries

According to reports, on November 6 and the 11th, LED optoelectronic products, such as the Rainbow group in State-owned enterprises listed for transfer of two wholly-owned subsidiaries of the China Beijing equity exchange 100% owned by surprise is that both transactions of transfer pricing are only a dollar.

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Character articles

1. Wang Sicheng: 2016 photovoltaic subsidy will be reduced in 2025 without subsidy

“2025 solar power will no longer need State subsidies. Not yet, but the curve is expected 2020 power parity could be achieved in 2025 to reach power parity. “November 20, 2014 to be held in Beijing on China International Solar PV Exhibition and Forum, the NDRC Energy Research Institute researcher Wang Sicheng told reporters.

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2. Cao renxian: latest technology and prospects of photovoltaic inverter

November 19, 2014 the 14th China PV Conference successfully held in Beijing landmark Convention Center, Sun power General Manager Cao renxian published the latest technology and prospects of photovoltaic inverters.

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3. Wang Bohua: 2014, China’s polysilicon production will exceed 130,000 tons

At the recent meeting of the 14th session of the China PV Conference (CPVC14), the Chinese Photovoltaic Industry Association Secretary-General Wang Bohua introduced, according to some estimates, this year more than 130,000 tons of polysilicon production will, reaching unprecedented levels. Coupled with more than 90,000 tonnes of imports it or to reach 220,000 tons.

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Solarmax parent company intends to file for bankruptcy

Polaris solar PV net news: reporter recently learned, Switzerland parent company of Solarmax inverter manufacturer Sputnik Engineering will be held this week in Switzerland, filed for bankruptcy.

Reporters saw in a notice sent to customers, the company said, it had to find alternative but to no avail.

The company said in the statement: “this morning informed staff and will start today to stop work until further notice. ”

Due to the recession and increased competition in the domestic market, the company is not the first European manufacturer to struggling.

Market research firm IHS research manager Sam ˙ Wilkinson (Sam Wilkinson) says: “Solarmax in 2008, is the world’s fifth-largest supplier, holds more than 4% of the market share. Its market share has since decreased in 2013, holding a share of less than 1%. ”

Wilkinson added: “Solarmax had by March 2013 United States solar market, efforts to internationalize their business, in order to offset the recession in Europe. Because the string inverter of the fierce competition of local manufacturers, such as Advanced Energy, and Solectria, as well as many other European and Asian suppliers to undertake similar internationalization strategy, its struggle to gain a larger market share. ”

Despite the recent focus on series inverters in series to make up the European utilities market recession, but the company continued to struggle.

Wilkinson said: “IHS predicted that European pricing pressure will continue over the next five years an average annual decrease of 5–10% in the area. Therefore, the Solarmax exit has always been a major player on the European market, will provide very competitive environment with only limited relief, focused on European suppliers will continue to face intense competition. ”

Sputnik Engineering declined to comment, but admitted Manager Weissberg Consulting has taken over the management of the company.

Monique Avila provided information for this article.

Original title: Solarmax parent company intends to file for bankruptcy

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Comparison of micro-grid and off-grid photovoltaic power generation system

Polaris solar PV net news: first, the micro-grid

Micro-grid system is a new network architecture, is composed of distributed generation, load, storage system and control device of the system unit, is to achieve a self control, protection, and management of autonomous systems, parallel operation can be either external, can also be run in isolation.

Micro-grid system is compared with the traditional grid system concept refers to multiple, distributed power and its associated load according to certain network topologies, and through the switch connected to the conventional power grid.

Core equipment of micro-grid system that distributed generation and energy storage systems, including PV inverters, wind turbines, diesel engines, PCS as well as BMS of the inverter.

In recent years, with the rapid development of micro-grid system, grid-connected inverter has been given a new definition: distributed solar power. It can be used as a micro-grid system of mains power, become one of the core technology of micro-grid system as a whole, due to the special nature of his power (current source), it can be used as a supplementary power supply micro-grid system.

PCS: energy conversion systems, in recent years is the rise of a new type of distributed application is very flexible and very powerful power supply and an energy storage system. As a four-quadrant converter, it can realize the function grid-connected inverter, it can also access grid-connected rectifier and charging function, you can also achieve independent off-grid inverter function.

Micro-grid system, distributed generation capacity is a certain principle, otherwise will cause excess power or lack of power.

Capacity of the inverter should be less than or equal to the total load capacity to close to the load capacity for the best, not too small, nor too high, if too high, excess power could not be absorbed, could easily lead to system crashes. In recent years research results showed that, dang grid inverse variable device capacity is greater than load total capacity Shi, if at has PCS as support source, grid inverse variable device of extra power will feed into PCS, makes PCS in “away from network charging” State, this State is not too stable of, currently also no real effective of control means, so recommends grid inverse variable device of capacity is less than is equal to total load capacity.

PCS capacity total load capacity 1.5 times should be set, but the battery capacity needs in accordance with the system can handle up to 3 to 5 rainy days of capacity to configure. Can also provide power for the load of the inverter, but micro-grid system is run at night, most of the time, grid-connected inverter not working at this time, so most of the energy micro-grid system is provided by PCS, PCS capacity needs to take into account for a rainy day and night conditions.

Micro-grid system, a typical main circuit topology

As shown in Figure 1 for the micro-grid system architecture diagram, together with the PCS of the inverter and connected to the system bus, while load hanging on the bus.

(1) when the power did not come off when it does, if it is during the day, run in grid-connected inverter based distributed power system, PCS in a storage battery charging status to serve as standby power supplies. If it is in the evening, still powered by the grid load, PCS as a backup power supply for battery charging.

(2) when power off, if it is during the day, systems running on PCS to support status of the source, as an auxiliary of the inverter power supply; if it’s at night, only the PCS as the primary power source to power systems, and PCS as well as capacity to meet the load requirements of long-term supply.

Second, off-grid systems

Off-grid photovoltaic power generation system, also known as stand-alone photovoltaic power systems, mainly by the PV module, DC/DC charge controller for off-grid inverters, load composition, with an independent power supply and energy storage function independently. Off-grid PV system applied to the region away from the main power grid, such as desert, beaches, Islands and other regions.

Off grid inverters are not active-phase commutating device, can only run the inverter status, rectification is not yet running. Main circuit structure and grid-connected inverters are exactly the same, just different control method and the input and output side of the connection object. Off grid inverters (three-phase) the AC output should be 380V/Hz.

In addition, the solar cell is different from a regular battery, it is a battery that can be regarded as a constant current source, the output power under the influence of light, temperature and other factors.

Typical off-grid photovoltaic power generation system topology

As shown in Figure 2 main circuit for off-grid photovoltaic power generation system, PV modules, controllers, and off-grid inverter AC load, if you have special needs can also be added on the controller side DC load.

Off-grid PV systems are passive generation systems, does not require the participation of large power, flexibility and mobility more superior, and more stringent requirements for such systems on DC/DC controller, must be able to effectively control the charging status and ensure that PV components operating at maximum power point.

Off-grid PV system capacity mainly in the off-grid inverter and battery configurations, off-grid inverter capacity equal to 1.5 times the load capacity is required, battery capacity needs to be able to take 3 to 5 consecutive rainy days of power supply, DC/DC controllers need to be larger than the capacity of PV components of capacity is slightly redundant.

Third, micro-grid and off-grid PV power system comparison

(A) common

Comes with a separate power supply characteristics;

Need energy storage systems;

Are needed for the batteries matching the best capacity.

(B) the difference between

Micro-grid system is an active system can be connected with the power grid, off-grid photovoltaic power generation system is a passive system, and cannot be connected with the power grid;

Micro-grid system is more complex, you need to configure the distributed power more, off-grid PV systems only require the controller and off-grid inverters can be;

Micro-grid energy storage system in the system for four-quadrant converter, can achieve bidirectional energy flow, energy storage systems in off-grid photovoltaic power generation system for single-phase inverters, bidirectional energy flow cannot be achieved.

(C) the practical application of principles

If applications for desert, beaches and other more remote, and no artificial occasions of frequent maintenance, off-grid PV system, so the system does not need to be manned, can run independently, and only need regular maintenance.

If applications as close to the power grid, and need frequent maintenance and artificial occasions to make strict scheduling requirements, with micro-grid system is appropriate, because the system of distributed power source switching and scheduling operation requires human intervention, and some even need to monitor the system.

Original title: comparison of micro-grid and off-grid photovoltaic power generation system

Hongdou group signed 10 billion yuan with 34 photovoltaic power generation project

Polaris solar PV net news: in order to take full advantage of the Tarim basin, rich in light and heat resources, speed up the second division 34 Regiment of new energy industry development, on November 19, 34 group signed with Jiangsu hongdou group PV project, marking the Mission’s new energy and industrial development has taken a solid step forward.

The project with total investment of 10 billion yuan, is 1000 megawatts of photovoltaic power generation project, about 30,000 acres of land. Both sides according to the photovoltaic industry development, and adopted a phased implementation approach, the first phase investment of 2.2 billion yuan, building covers an area of 8000 hectares of 220 megawatts of photovoltaic power generation project. Voluntary mutual equality, mutual benefit and common development, the principle of good faith and cooperation.

It is understood that the photovoltaic power generation project is completed, you can improve the energy structure, promoting economic development, with economic, social and environmental benefits. The signing of the project firmly 34 missions work in attracting further confidence and determination. Currently, 34 missions are trying to form a pro-business, and commercial, social atmosphere, with sincere affection to attract more foreign businessmen to invest in.

Original title: 34 group hongdou group signed a 10 billion dollar solar power generation project

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Outdoor portable solar power system structure (chart)

Polaris solar PV net news: 1, portable power supply system composed of

In addition to generating electricity of solar components, the power supply system and the rest of the main components are: solar charge controllers, batteries, inverters, tank and the structure.

(1) solar modules: Solar is the solar power system in the central part of most valuable part of the solar power system. Whose role is to project the Sun’s radiant energy is converted to electrical energy, or to a battery store, or promote the work load. Quality and cost of the solar panel will directly determine the quality and cost of the whole system.

(2) solar controller: solar controller role is to control the State of the whole system, and played a battery charge, over discharge protection role. In difference places, qualified controller should have temperature compensation function. Other additional features such as control switches are light control switch, controller should be optional.

(3) battery: lead-acid batteries, small systems, you can also use nickel-metal hydride batteries, nickel-cadmium batteries or lithium batteries. Whose role is created when light components of solar cells for energy storage, and then released when needed.

(4) the inverter: solar cell current produced for DC, charged into the battery storage. Inverter converts DC to 220V AC, for use by the various loads. Of special note is that General inverters must be connected battery and use direct connect solar cells, because the Sun is not stable and does not work.

(5) the tank and the other pieces of the structure: mainly as a device placed above ground, according to different tank sizes. Meanwhile, according to product functional differences, there may be a DC output, the porous plug different structures.

Composition of the portable power supply system

2, solar charge controller

Solar charge controller is actually solar energy with Butler, in the absence of inverter systems, he can be connected directly to the DC load.

Their biggest role is in accordance with the battery voltage is high or low, adjust the charging current, and to decide whether to supply the load and achieve the following goals: 1. Keep the battery in a full State. 2. To prevent battery overcharging. 3. To prevent excessive battery discharge. 4. Prevent reverse charging of batteries to solar panels at night.

3, battery

Should say that most solar cell manufacturers products at home and abroad are already very mature. These photoelectric conversion efficiency, cost and sales price, and the service life, generally meet the needs of photovoltaic system design. Correct selection of battery as energy storage devices, solar power system design is very important, because the battery in solar applications, is expected to be difficult life stories are common.

3.1 common batteries introduction

Independent solar power systems, battery is the second important component of solar modules, are also part of the greatest impact on system performance and reliability. PV system lifetime, taking into account the battery replacement costs, and solar cell module does not differ significantly. Development of new energy technologies and advanced control technologies, is an important way to reduce the cost of solar power supply system. There is no type of batteries for all the solar power system, there are many factors that affect the choice of batteries and performance. Commonly used battery: lead-acid batteries, alkaline batteries (NI-CD/Ni-MH batteries, lithium batteries), lithium iron phosphate battery lights. Solar solar power system requirements are: low prices and charge/discharge efficiency, low self-discharge, long life and good durability and less maintenance. Taking into account the high cost and reliability in several select the Auxiliary battery system can be used as a solar power supply systems, lithium-iron phosphate battery prices are too high and single large capacity technologies were not fully mature, and there are some safety issues that lithium-ion batteries though lightweight, economy of moderate, but the weather is bad, especially in a cold climate, depth of discharge seriously degraded. Higher prices of nickel-metal hydride batteries and nickel-cadmium batteries, and have a certain memory effect is not conducive to restore the capacity. In small capacity of occasions, like lawn lamp,, nickel CD/nickel hydrogen battery and lithium ion battery to its volume small, and capacity big and widely application; lead acid battery price low, and monomer voltage high, and performance stable, became big capacity solar power of street of supporting battery of preferred, especially colloidal lead acid battery, its characteristics Shang more meet outdoor using of independent solar power of needs.

3.2 characteristics of gelled lead acid battery

New technology of gelled lead acid batteries with gelled electrolyte, in a lot of ways to make up for the flaws and shortcomings of conventional lead-acid batteries, lead-acid battery market plays an important role in the future. Theoretically speaking, gelled lead-acid battery is a lead-acid battery, just in order to achieve the aim of sealing and performance, and unlike a normal sealed lead-acid battery electrolyte technologies. Colloidal battery as can using pulse type charging, but to for battery for adjustment, after all colloidal lead acid battery and General lead acid battery and has is big of difference, it not only performance in electrolytic liquid to glue gel-like, also performance in its discharge curve straight, and inflection point high; mass can than, especially effect than, to than general lead acid battery big 20% above; life (General can reached 10-15 years) also than general lead acid battery long 1 time times around; high temperature and the cryogenic characteristics or have more. Gelled lead-acid battery is the world’s most privileged performance of valve-regulated lead-acid batteries.

Colloidal charge and discharge of lead-acid batteries, temperature curve as shown in the figure, and 4-3, and 4-5.

Figure 4-3 the charging voltage and ambient temperature

(1) charging characteristic: as in Figure 4-3. Solar power systems for recycling and floating condition, charging voltage changes with ambient temperature conditions. Rechargeable battery rated voltage 2.275V/cell (25 ℃), when the ambient temperature is below 5 ° c or higher than 35 ℃, needs by adjusting the charge voltage temperature compensation coefficient, temperature coefficient -3.3mV/℃ cell. Initial charging current should be in 0.3CA or less (nominal capacity c tables, table a amperes). Recommended charging 5 ¡æ ~35 ¡æ ambient temperature in order to prevent influencing the normal life. Temperature compensation is also ideal for battery discharge.

Battery cycle life and Figure 4-4 depth of discharge the CRT

(2) discharge characteristics: as in Figure 4-4. 20% of the solar power system is generally shallow discharges, under continuous rainy days may be 80% the depth of discharge. Gelled lead acid batteries in the light more than normal on discharge cycle life of lead-acid batteries twice times, could theoretically run 5-6 is not replaced. And lead-acid batteries solar power system is generally 2-3 need to change the battery.

Figure 4-5 relationship between ambient temperature and battery capacity

(3) as shown in Figure 4-5, we can see the effect of temperature on the battery capacity is very large, so the temperature compensation to consider when charging and discharging. Solar power systems, it is usually the battery in the ground, to keep the battery operating temperature of near-constant frost protection and suntan at the same time, you can effectively guarantee the reliability of the battery. Battery replacement is more troublesome, and bigger battery requires special lifting equipment. Underground installation of conventional sealed lead-acid battery can extend the service life, but in the field of solar energy, battery failure rate is very high, the replacement is an acute problem; on the contrary is gel battery cycle life of the battery three times times and low self-discharge, long under float charge condition run, good reliability, so the battery underground installation, in Europe, are also common practices. Germany and the United States buries street lamps is to use a gel battery installation.

3.3 battery depth of discharge

Battery life and the depth of discharge have a great relationship. In a certain range, depth of discharge, the greater, the shorter the battery life. However, at system design time, and made the smaller the better, because the smaller batteries cannot release the reserve capacity of more then cause waste of energy, but also increased system cost. For lead-acid batteries, and generally the =60%~70% as well.

4, inverter

Simply put, inverter is a low-voltage (12 or 24 v or 48 v) DC current into 220 volt alternating current electronic devices. Because we are usually 220 v alternating current rectified into DC to use, while the inverter function, in contrast, hence the name. We are in a “mobile” era, mobile office, mobile communications, mobile leisure and entertainment. In a State of movement, people not only need a low voltage DC battery or battery supply, but also need to be an integral part of our daily environment of 220 v AC, inverter will be able to meet our needs.

Inverter DC power (batteries, storage batteries) into alternating current (typically 220V,50Hz sine wave). It consists of the inverter, control logic and filter circuit. Widely used in air conditioners, home theater, electric wheel, electric tools, sewing machines, DVD, VCD, computers, TVs, washing machines, and refrigerators, VCRs, Massager, fans, lighting, and so on. Abroad due to higher penetration of cars working outside the home or traveling can be connected with the inverter battery driven electric appliances and a variety of tools. Through the car cigarette lighter output inverter is 20W, 40W, 80W and 120W 150W power specifications. Larger power inverters to be received via a connector on the battery. Output of household appliances plugged into the power converter will be able to use various electrical in the car. Appliances that can be used are: mobile phones, laptop computers, digital cameras, cameras, lighting, electric shavers, CD players, game consoles, PDAs, power tools, mini cooler and all kinds of tourism, camping, first aid and other electrical appliances. At present in the field of solar energy, inverters have been fully applied.

Main classification by sinusoidal wave inverter, is divided into two categories, one is pure sine wave inverter, other is square wave inverters. Sine wave inverter output are even better as we daily use of the grid of the sine wave alternating current, electromagnetic pollution in the grid because it does not exist. Square wave inverter output is poor quality square wave AC, to maximum positive to maximum negative almost at the same time, so, the load and the inverter itself cause severe destabilizing effects. Meanwhile, their load capacity is poor, only for probabilities varied rated load, not with inductive loads. If the load is too large, third harmonic component contained in a square wave current into capacitive current increases in the workload, which can damage the load power supply filter capacitors. In response to these shortcomings, there has been a standard sine wave (or modified sine wave, sine wave modified sine wave, simulation, and so on) the inverter, the output waveform from positive to maximum negative to an interval between the maximum, results improved waveform modified sine wave is still made up of lines, is the realm of square wave, poor continuity. All in all, the AC sine wave power inverters provide high quality, able to drive any kind of load, but the technical requirements and costs are high. Modified sine wave inverter can satisfy the majority of our electricity demand, high efficiency, low noise, moderate price, thus becoming the mainstream products in the market. Square wave inverter is made of simple harmonic oscillator, the technology belonged to the 50 level will gradually withdraw from the market.

Inverter power source in accordance with different, can also be divided into coal-fired power inverters, solar inverters, wind inverters, nuclear power inverters. According to different uses, is divided into independent control of inverters, grid-connected inverters. Solar inverters in the world, Europe and higher efficiency, the European standard is 97.2%, but the prices are exorbitant, other domestic inverter efficiency below 90%, but the prices are much cheaper than the imports. In addition to power, beyond the waveform, select inverter efficiency is also very important, the higher the efficiency of the inverter have less energy to waste, used in electrical power more, especially when you use small power systems, the importance of this is more obvious.

Inverter part itself consumes power at work, so its input power is much greater than its power output. Inverter efficiency is the ratio of output power to input power inverters, inverter efficiency for power output than input power. Such as a 100 watt electric inverter input, output 90 Watt AC power, then its effectiveness is 90%.

5, box

Portable solar power systems in General, box should be able to accommodate all the components, including solar modules, and better integration of all operations and patch were completed at the Panel. Also should have a certain degree of waterproof and dustproof abilities.

Case closed

Box expanded

The authors

Aronakira, Xiamen University, school of physics and electrical and Mechanical Services (Xiamen Han Qing information technology company)

Wang Yajun, an associate professor of Xiamen University, school of physics and electrical engineering

Jia Yingchun Chen Yanling zhouzhenfuguojie

Fund projects: 1. production-study cooperation in major projects in Fujian province (2011H6025), 2. key projects of science and technology in Fujian province (2012H0039), 3. Fujian province cooperative project (2013H6024).

Instructor profile: kbdb ACE (1969-), male, Cixi, Zhejiang people, Associate Professor, postgraduate tutor, is mainly engaged in research on new energy, semiconductor lighting.

About the author: aronakira (1982-), male, Xiamen, Fujian, master, is mainly engaged in flexible solar cell research.

Original title: outdoor portable solar power system structure (chart)

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Solar power plant operation and maintenance management system

Polaris solar PV net news: one. Solar power plant operation and maintenance management system

Solar station shipped dimension management system has online real-time, on solar station for digital monitoring and on inverse variable device, and Confluence box, and DC distribution Cabinet, and Exchange distribution Cabinet, and environment monitoring module, and transformer, and grid protection device, and power measurement device, and battery pieces, many equipment and detection points continuous not interrupted of monitoring and key equipment run efficiency, and fault occurred rate, main indicators for analysis and evaluation.

Solar station shipped dimension management system can records emergency fault event of alarm, and history run data of analysis, and various years day parameter graphics and report, and whole station run of economic indicators calculation, and run benefits analysis, and power system of power forecast, and will production process management into which including run management, and overhaul management, and indicators statistics, and identifies coding, function, is solar station digital and smart of shipped dimension management system platform, the products first in solar station achieved has digital, and process of, and standardization, and Intelligent management.

II. System architecture


III. Main functions of the system modules

Solar power plant operation and maintenance management system based on real-time data, according to the photovoltaic power plant operation management, production of large photovoltaic power plant operation and maintenance management system, its main functional modules, including:

1. online monitoring: total station control, inverter, monitor, combiner box monitoring, environment monitoring, alarm information;

2. operation and management: work shift, operating logs, ticket, tickets, regular operation records;

3. equipment management: accounts of device identification, device, equipment defects, equipment maintenance, equipment life cycle management;

4. spare parts: spare parts category, applications for spare parts, spare parts ledgers, inbound, outbound, inventory of spare parts, spare parts spare parts utilization statistics;

5. Administrative Office: agent, mail, documentation, staff, announcements, announcements, schedules, attendance;

6. statistical analysis: power counting and running analysis, equipment analysis of power station, power plant performance statistics, index analysis, two votes spares for equipment defect statistics, statistics, performance indicators and statistics;

7. the report management: the electricity power station runs daily, monthly, inverter operation analysis of daily, loss of spare parts monthly, daily report, monthly production indicators, automatically generated index annual report;

8. decision: comparative analysis of inverter DC current, statistical capacity, and exception-comparison of radiation and loss analysis of power station, power station performance analysis, comparison, inverter power daily load curves;

IV. Main functions of the system introduction

1. intelligent management

Solar power plants are defined for the solar power industry “two votes, three systems”, operation and maintenance, management standards, promotes the management of enterprises. Lead in solar power in achieving the digitization, standardization of processes, and intelligent management.

2. efficiency evaluation

Through the contrast between theory and actual power generation, test the effect of solar energy resources assessment.

3. condition monitoring

System can remotely monitor inverter operation status, fault analysis, identified by color, simple, clear, step by step and analysis, tracking reasons.

4. Intelligent analysis

Through the inverter and combiner box summarizing the DC current, mine and analyze, discover the inverters, combiner box and component failures. Great convenience to run maintenance personnel to quickly locate the failure to compensate for inadequate monitoring systems.

5. performance analysis

Analysis of conversion efficiency: for different manufacturers of inverter efficiency calculation and analysis technical parameters for certifying a company contract.

Monthly comparative analysis of running: operation of the inverter is automatically generated daily, monthly statements, know that power plant operators to run analysis, find the inverter capacity falling reason, improve the efficiency of power stations running all day.

6. solar power plant ID system coding

Specially developed for solar power plant marking system, and successfully introducing thermal power plant of KKS coding into a solar power station, solar power utility orderly identifies hundreds of thousands of devices, enables administrators and users to quickly and efficiently locate device information, providing station information management efficiency.

7. solar power plant data collection

System is able to collect various types of inverters, combiner boxes, environmental monitors, power meter, operating data supports a variety of communication protocols such as OPC,MODBUS,IEC102/103/104, CDT.

8. comprehensive solar power production index system

Production design for solar power station operation and maintenance management of statistical index system include: solar resource indicator, charge indicator, indicators of levels of energy consumption, equipment operation, and according to industry standard for each indicator set exact statistical methods, calculation rules, evaluation approaches.

The five. System characteristics

Solar power plant operation and maintenance management system implementation will help to enhance the photovoltaic units integrated Intelligent fault analysis capabilities, improves efficiency and power generation, photovoltaic power plant investment cost savings, standardizing technical standard for PV power plant operation and maintenance, improves photovoltaic power plant production management.

1. monitor and intelligent, intelligent management, predictive intelligence power.

2. total station data sharing, eliminating “islands of information” to achieve seamless transition between systems.

3. ease of construction operations, reduced coordination link, a clear duty.

4. panoramic view of data, the monitoring of the entire device lifecycle, improve equipment utilization.

5. effective integration of device resources, reduce redundant investment, reducing building investment and operating costs.

6. the integration of monitoring, management, forecasting, improve power plant efficiency, meet the owners demand monitoring of PV power plant operation and maintenance.

VI. After-sales service

Xian era power software limited responsibility company is professional power information solution programme of provides commercial, business covers information systems based platform solution programme, and power industry dedicated software, and solar station monitoring system, and solar station shipped dimension management system, and power plant management information systems (MIS), and three dimensional station multimedia training system, and three dimensional station virtual simulation system,, is through national high-tech certification of system integrated commercial and gold service enterprise.

The company has a team of experienced and responsive after-sales service, with standardized service system, ready to escort your application system.

Company website: www.erasoft.CN

Email: nwpower@126.com

Phone number: 029-63618066

Original title: solar power plant operation and maintenance management system

Evergrande: transboundary PV bet beats

Polaris solar PV net news: it is easy to see, new photovoltaic business into shell companies, Xu jiayin, or would like to make a highly anticipated capital operation. Because of policies to promote the development of photovoltaic industry, evergrande mining opportunities.

Evergrande, these two words just like Xu jiayin in two meetings with the Hermes belt, in 2014, much industry and investors attention. Of course, concern has nothing to do with Hermes, but its constant turns, good style of a bid to open up, with a fashionable word, is cross-border.

As developers, evergrande has several years of cross-border road covering football, cooking oil, milk and drinking water. After the investment of billions of Yuan on September 29, it announced an investment of 90 billion yuan, in Zhangjiakou, Hebei province to build 9.2 million-kilowatt solar photovoltaic power projects. On October 7, the Tibetan group in Hong Kong said, evergrande has joined forces with United States companies SolarPowerInc. (hereinafter referred to as SPI) MOU, both intended to discount price of about 87%, the totals $ 1.2 billion stake in the Tibetan group. Among the evergrande real estate investment of HK $ 966 million, after the transaction is completed, hide their countries will become the largest shareholder of the group, the funds for the development of solar-energy business.

If the previous cross-border has not stepped out of the circle of the consumer, the evergrande investment photovoltaic twice in a row in less than ten days, can be said to be playing a lot of. So, entering today’s hottest photovoltaic industry, evergrande would appreciate what recent multi-billion-dollar investments and what it can bring to the boss?

Stroke volume

As with previously expected, evergrande’s repeated action or operation without capital investment sectors also have imaginations.

Hang large stakes in Tibetan group, investment community widely believes that this is a classic shell behavior. If the deal closes, evergrande real estate is hidden with SPI control group over 90% shares, according to the Hong Kong Stock Exchange’s request, triggering a general takeover regulations. Therefore acquirers need to apply to the Hong Kong stock exchange the waiver, that is, to independent shareholders adopted at the General Assembly does not implement the full takeover proposals, so as to retain the listing status. According to the announcement, evergrande has also agreed to subscribe to SPI total 21.74 million shares, about SPI 3.95% of all issued shares.

Statistics show that SPI is a United States registered in California’s vertically integrated photovoltaic solar developers, which is a complete solar power and solar energy solutions, mainly for the United States business and industry, Government, utilities and housing facilities with solar power generation systems. As early as in 2011, the company was bought by PV giants has arisen now LDK, beginning in 2014, companies in Europe, Japan and China to conduct business.

SPI has rolled out the “front”, but as we all know, PV’s business model is hard to make a difference, and this means that future there may be an increasing number of competitors entered, and the current high level of dependence on Government subsidies, larger voice means that companies in the industry are also stronger.

Therefore, the evergrande real estate acquisition, it is not surprising. Early due to the photovoltaic industry requires a huge amount of money, given the high indebtedness of the industry characteristic, evergrande photovoltaic business in assets of listed companies, and can lead to debt ratio increased further, negative impact on the real estate financing business, and acquired a “shell company”, achieve operational independence and looking for financing opportunities, it would be a better choice.

In addition, the capital markets for new energy’s valuations far higher than real estate, independent trading helps increase PV company valuations, laying a solid foundation for subsequent equity financing.

It is easy to see, new photovoltaic business into shell companies, Xu jiayin, or would like to make a highly anticipated capital operation. On one hand, because of evergrande’s PV industry has just started, there is no asset injection, so bought a new shell company and there is no financing barriers, on the capital markets for new energy’s valuations far higher than real estate, independent trading helps increase PV company valuations, laying a solid foundation for subsequent equity financing.

Gambling policy

Over the years, counting launched large-scale PV projects in the world, are invariably rely on support policies. Evergrande’s big cross-border into the photovoltaic industry, may also have been betting on domestic policy support continues to increase.

Persistent large Insider says before this round of the photovoltaic market situation and different, a few years ago, companies mostly rely on output in Europe and America to solve order issues, now more focus on domestic policy. Under positive news such as photovoltaic power generation costs continued to decline, photovoltaic power plant began to be sought after capital since last year. Recently, including Shanghai, Zhejiang, Jiangsu, Jiangxi, Shandong, Henan and Anhui Provinces, plus the PV industry policy was introduced to encourage promotion of distributed PV industry development. It can be said that huge industrial space is an important cause of evergrande’s bet.

One obvious manifestation is, evergrande real estate within the new energy sector very seriously. The end of September, evergrande has signed with the Government of Zhangjiakou City solar project was personally led by Xu jiayin, Vice President Ke Peng, Shi Shouming also went along, plus Beijing Chairman Xu Xiaojun, executive team, signed an agreement with the local Government of Zhangjiakou together.

According to the specific content of the agreement, evergrande in the local construction of solar photovoltaic projects are as follows: invest 6 million-kilowatt solar PV power plant project within three years; three years to invest in 200,000-kilowatt industrial park of distributed solar power projects; three-year investment in 3 million-kilowatt solar photovoltaic farm project, three projects total installed capacity of 9.2 million-kilowatt.

According to the information released by the National Energy Board, and by the end of 2013, 22 major provinces, autonomous regions and municipalities have been grid-connected 741 large-scale photovoltaic power generation project, mainly in Northwest China. Cumulative installed capacity in the top three provinces, Gansu province, Qinghai province, and Xinjiang Uygur Autonomous Region, respectively, and 4.32 million-kilowatt and 2.57 million-kilowatt, which means that, evergrande PV projects once completed, its total installed capacity will exceed ranked second in Gansu and Qinghai combined. In addition, evergrande real estate group new energy development centers have also been set up, responsible for Group on solar energy, wind energy, nuclear energy, ocean energy, geothermal energy, biomass energy and other renewable energy industries in the areas of research, market development and strategic investment and management work. Evergrande has become attached great importance to the new energy industry projects, it is understood that the company exclusively staffed by top executives and elite staff established a new management and operations team.

Such a big and diverse inputs, it is easy to see Xu jiayin, a new energy policy and the PV industry’s confidence in the future.

Suspect prospects

So why choose to Zhangjiakou as the project is located? Xu jiayin said that within 5 years the city he visits three times in a row, only the Zhangjiakou. “Whether it is real estate, grain or PV, constant there was strong support from the County, Zhangjiakou City. Has a very good environment in Zhangjiakou and soft, are tailored to the various conditions. Countries are trying to encourage the development of related industries, evergrande is very confident on the bilateral cooperation, and will increase investment and promote progress on the project. ”

Although confident, but as a Hong Kong-listed companies, evergrande’s choice is not recognized by international investors, even have international rating agency poured cold water on the boss.

On October 9, the Agency announced, evergrande real estate investment in the photovoltaic industry is not much better, and believes that the investment plan may impact negatively on evergrande’s credit status.

Agency pointed out that in the study, evergrande has developed a radical expansion plans of the photovoltaic industry, but his lack of relevant professional experience. In particular, the evergrande shortly after entering the agricultural and consumer sectors, and again into very different industries and will bring execution risk.

Photovoltaic industry is not completely optimistic about the constant move. Buy Tibetan group in conjunction with evergrande real estate is the SPI company, LDK LDK in 2013, serious financial problems, the former Chairman of LDK quit as the company and its subsidiary, the Executive Director. Therefore, the sources said, LDK LDK has wagered all to SPI, LDK’s plan was to SPI as a station platform, becoming an operating company, the initial idea is to find a partner to do EPC and joint development projects, was underwritten by these partners for solar power projects, assets are then loaded into SPI, which makes high performance.

Insiders claim that PV power station’s profitability is not as long as money can, PV is the core of enterprise operation mode. Even industry giants like has arisen now, profits are also losing money. Thus has arisen now will be happy to find the mode of evergrande real estate companies like to do try to, photovoltaic business provides only technical services and operations, risk is relatively small, particularly with regard to capital, evergrande promises even greater risks and pressure.

Original title: evergrande real estate straddling PV bet and beats

Solar-Internet era is coming

Polaris solar PV net news: China Internet development has been more than 20 years. According to the China Internet Information Center CNNIC survey showed that by June 2014, has 632 million to informants in China, Internet penetration is 46.9%. Meanwhile, with a 83.4% mobile phone Internet access, beyond the traditional PC 80.9%, driving the development of Internet II.

In such a wind and fire in the age of the Internet, emerging industries by integrating Internet resources to sell low-cost low-price goods and services, under a single line break the traditional industries (off-line) marketing model. Traditional marketing model has been unable to meet the needs of the emerging industry, online and offline marketing with sprung up. The solar industry is no exception. Solar Chairman Qu Xiaohua said in the solar industry will play an invaluable role in the Internet, for another 5 years, 10 years, will make the solar industry a makeover.

Of solar energy online procurement platform

On July 17, 2012, online shopping platform “Rakuten” solar panels started selling e-commerce shopping, superior to the market value of more than 30% of super low prices to attract customers. Buyers only need to submit an application on a Web site, is responsible for the construction of Japan ecological systems will come to install. According to statistics, online shopping platform for order more than 1 time more than had been expected, of solar energy online shopping popularity is evident. Lotte can provide such a preferential price on the site, mainly because dealers and reducing costs can be reduced; it also gives consumers a great option, change the client can accept solar companies offer passive situations before.

In China, Internet trends of solar energy is also rising. Renesola started in 2012 recruit e-commerce operations director; electric at the end of 2012 to set up online shop, build online sales platform for industry group – line pipe, big clients and big projects focus on the development of the major industry, services most of the line fragmented and individualized needs of end users, integrating online and offline marketing strategies. In addition, the Hunan solar first to move 3G platform, driving the development of new marketing.

The other hand, the entrepreneurs do not fall behind. In December 2013, Yingli group first announced the new strategy will establish “global network platform” to integrate upstream and downstream resources, providing services for small solar companies around the world. In June 2014, the platform is formally launched, will cover more than 30 industries and raw materials with the goal of cumulative turnover was US $ 25.02 billion by 2016. Yingli procurement platform is expected to provide in the future supply of raw materials and packaging, plant sales, technical and management, OEM processing and outsourcing of production line design and construction of one-stop services. Although so far, Yingli’s e-commerce platform has only five solar companies, but the plan itself is perfect, excellent potential.

While, solar Chairman Qu Xiaohua this year October in “2014 Sina financial Energy Forum” Shang talked about, European and Japan of solar and Internet of combines mode has quite mature, consumers just through Google to select fancy of solar Board, and entered related of roof area, and tilt angle, information, and plus family of electricity specific situation, Google will can immediately recommends most for installation of system, and estimates out economic, also can proposed quotes, and related of Bank loan, information, Internet services for best performance.

Investment and financing platform for solar

Solar market growing demand, but because of the large upfront capital investment and financing programme remain issues of concern to the industry. Procurement platform in addition to the solar, solar energy investment and financing platform also came into being. Focus on investment and financing for clean energy projects and power stations the P2B transaction services and B2B platform “Networking” has been on the line. Networking the first phase will launch “Yanggu” series, including “voted the Sun”, “Sun overseas investment”, “sunshine immigrant vote” transactional “sunshine balance” to help investors to put money into solar power plant projects at home and abroad, and received praise in the industry.

Prior to that, combined with PV in the beginning of this year launched China’s first Internet solar chip case, distributed for 1MW solar project. Internet banking and solar energy has emerged as a major magic weapon to solve financing problems of solar industry. In this light, solar-powered e-commerce platform can significantly reduce the human and material resources, and break through the boundaries of space and time, anytime, for solar energy products and related financing activities that not only reduces costs, reducing agent, promote openness and transparency of industry resources, but also gives consumers the freedom to choose right, create a win-win situation.

Industry insiders commented on solar energy businesses into the e-commerce phenomenon: “clarity, find the leading talent requires at least 2 years. Currently only superficial moves. “The future energy industry such as Taobao, Jingdong, an online marketing giants, as long as the policy is correct, perhaps only a matter of time.

Original title: solar-powered Internet time has come