Polaris solar PV net news: “large-scale development of solar energy power generation needs to be ultra high voltage power grid support. “Mr Jin baofang, Chairman of the national people’s Congress, jinglong told Xinhua in an interview that” relying on large high voltage electric systems, solar energy transmitted to the load Center, to fundamentally solve problems such as abandoned. ”
Solar power delivery restrictions
Expand solar absorptive range is an important way to improve solar absorptive capacity.
Mr Jin baofang told reporters that the reverse distribution of energy resources in China and the productivity, in the eastern region is the energy resources Center, 70% per cent of electricity consumption is concentrated in the Central and Eastern regions, but the lack of energy resources such as solar energy, coal; 70% per cent of our solar and other clean energy concentrated in the West, the North, but difficult to digest, energy base of 1000 to 4000 km away from load Center.
Mr Jin baofang stressed that compared with 2000, total installed capacity for solar power growth in China by a factor of approximately 1400 times, current solar energy generating capacity in China has ranked second in the world. However, limited by the delivery channel, solar power is difficult to deliver, faces prominent problems such as abandoned.
Mr Jin baofang believes that promoting solar power is the effective approach to optimizing energy structure in China. East-Central China’s power demand is huge, to transport coal and other fossil fuels from the West, the North East, will directly increase the cost of electricity, will increase air pollution in the eastern part. Has abundant solar energy resources in Western China, especially Xinjiang, Gansu, Western Inner Mongolia and other areas in Western China, where abundant solar energy resources, development of solar energy power generation prospects well. Expand solar absorptive range is an important way to improve solar absorptive capacity, solar power output characteristics of solar power into the grid has a wide range of optimal allocation of capacity. There is an urgent need to speed up the construction of UHV transmission channels to achieve optimal allocation of solar power on a national scale to promote large-scale and efficient utilization of clean energy.
Should speed up the construction of UHV power transmission
Practice has proved the technical feasibility of UHV, operational safety, engineering, economy and environment-friendliness.
This reporter learned that, since 2009, China has built and put into operation of the 6 ultra high voltage power transmission lines, all remain safe and stable operation, spanned when pumping power 138 billion-kilowatt new threat definitions. Building with “high rigidity” ultra high voltage as the backbone of “San Hua” synchronous power grid, grid structure stronger and more reasonable, regulation of a more unified, more advanced technology, able to guarantee large power system control, control, control.
After engineering validation, ultra high voltage power grid have obvious advantages compared with the existing power grid, 1 million volts of AC UHV transmission capacity is four to five times of the 500,000-volt unit loss of transmission capacity, the corridor width, cost only 500,000 volt transmission, and 12.5% and 75%.
Practice has fully proved that the technical feasibility of UHV, operational safety, engineering, economy and environment-friendliness.
Mr Jin baofang said, accelerated construction special high-pressure transmission channel, will West and North solar power, and Shaanxi, coal power and East Central load Center connection, take “infuriated playing bundle” way transmission, not only can effective solution solar power alone outside sent not economic, and security poor of problem, and on improved East Central area air quality, and ease energy supply tension of situation great benefits, while also can led West, and Northern economic accelerated development.
Based on this, Mr Jin baofang proposal hoped that relevant departments of the State will be in West Inner Mongolia-long Saudi AC high voltage engineering, West Inner Mongolia-Jiuquan-shaanbei-Nanchang, Wuhan, Hunan and other DC projects into the national “Thirteen-Five” energy plan and unity to carry out preparatory work as soon as possible to meet the solar-energy delivery needs in the Northwest region, supporting solar photovoltaic industry development.
Original title: Mr Jin baofang: radical “abandoned” to speed up the development of ultra high voltage power grid