Core Tip CCTV February 21 reported that State Grid Corporation will start construction this year, seven of UHV transmission lines, indicating UHV transmission will accelerate development into the period. From the "five" and the long term, China will be the construction of a number of UHV AC and DC transmission channel, forming the western, northern energy base to connect the eastern and central regions of the load center of large-scale, long-distance, cross-regional, low loss It is economical and environmental benefits of a large cross-transmission channel and the "three Chinese" special high-voltage synchronous grid. 7 UHV transmission lines is expected in 2015 after the completion of the transmission 344 billion kwh per year, equivalent to the east less built 69 million-kilowatt power plant, less burning 160 million tons of coal, reducing PM2.5 and other power industry pollutant emissions by 23%.

■ speed up the construction of UHV transmission channel, adjust the energy structure, developing clean energy objective need

"Three North" region 9000 kilowatts of wind power sent, we must rely on UHV transmission

In recent years, the rapid development of China's wind power to base the formula developed the "Three North" region-based. Into the "Twelfth Five-Year" since the wind power capacity "Three North" area proportion of the total installed capacity has reached a high level, close to or over Denmark, Spain, Germany and other wind power development. At the same time, the "Three North" area of ​​wind power also suffered a serious dilemma abandoned wind. The reason the one hand, the smaller the size of the local market and poor system peaking capacity, but the main reason is the size of its external transmission channel is relatively small, abundant wind energy resources can not be delivered to millions of households. It is foreseeable that in 2020 the face of 200 million kilowatts of wind power development goals, and 90 million kilowatts of cross-transport demand, accelerate the development of UHV transmission will be to improve the efficiency of wind power development only solution.

Accelerate the development of Southwest Water is one of the most important measures of 2020 to complete the clean energy development goals. According to "Hydropower Development" second five "plan", 2020, National Hydropower installed capacity reached 350 million kilowatts; from 2010 to 2020, will add 150 million kilowatts, of which 80% in the Southwest region, will cross over 7000 kilowatts scale transport, transport large scale, distance, and only UHV capable of undertaking the task of conveying southwest future hydropower.

■ accelerate the development of UHV transmission is to reduce the environmental impact of thermal power development in the eastern part of the urgent requirements

East Midlands large number of coal-fired power plant layout is one of the important causes of fog and haze, the adjustment is imperative

For a long time, the development of China's power balance on site-based, coal-fired power plants are mostly concentrated in the East Midlands, the acid rain problem is serious, frequent fog and haze PM2.5 mainly due. Since December 2012, the eastern and central regions of China have been many large-scale fog and haze, long duration,PM2.5 daily average concentration value exceeds the national "Ambient Air Quality Standard" secondary standard several times, on human health, transport and urban image caused significant adverse effects.

Reasons for the formation of fog and haze is very complex, a large number of East Midlands fired power plant layout is one of the important reasons. The end of 2012, East Midlands thirteen provinces (North China Lu Beijing, Tianjin, four provinces and one city in East China, Central China Hubei, Henan, Hunan and Jiangxi) coal-fired installed capacity 410 million kilowatts, accounting for 54% of the installed capacity of coal; land area of ​​about 1.58 million square kilometers, accounting for only 17% of the country. Comparison of the distribution of acid rain, haze pollution distribution and coal distribution installed, it can be seen from the distribution area, the region and the heavy pollution of thermal power units Land area installed large areas of high coincidence. Thus, optimizing the development of coal distribution, strict control of new coal-eastern and central regions, the future will be a major initiative to reduce the environmental pressures eastern and central regions.

Economic and social development in order to meet demand for electricity, between the years 2010 to 2020, but also a substantial increase in our coal-fired power generation, coal market space reached 300 million kilowatts or more. To prevent further aggravate the eastern and central regions of environmental pollution must be strictly limited installed capacity of coal in the eastern and central regions, the main layout of China's new coal should be rich in coal resources, the environment of space western, northern region. Into the "Twelfth Five-Year", by the coal layout inertia effects, the East Midlands is still a large number of approved and started construction of coal-fired power plant, which will bring greater environmental protection eastern and central regions of pressure. According to statistics, "five" after the new coal production, East Midlands annual coal consumption also increased by more than 20%. During the "Thirteen Five" East Midlands coal market space is still large room for optimization. Shall be in accordance with the "energy development" five "plan" and other national planning documents, to take decisive measures to strictly limit the new East Midlands coal, coal will add a new layout in Shanxi, Shaanxi and Inner Mongolia, Ningxia region. According to the company's network planning, it is expected to "Thirteen Five" period Shanxi, Shaanxi and Inner Mongolia, Ningxia new area will add 200 million kilowatts of coal, coal-layout optimization undoubtedly will effectively ease the eastern and central regions PM2.5 pollution and other environmental health.

■ UHV promote clean energy development and optimization of the layout of coal, can significantly reduce PM2.5 pollution in East Midlands

After UHV great development in 2020, the power industry of the eastern and central PM2.5 pollution can be reduced by 31%

Through the development of clean energy and to optimize the layout of coal, nationwide optimize the allocation of energy, resources and environment, could lead to major emission reduction benefits. Considering the UHV power grid to promote the development of clean energy, coal layout optimization both factors, compared to 2010, 2015 and 2020, the power industry to East Midlands PM2.5 pollution will be reduced by 23% and 31% respectively.

Development of UHV power grid can promote national development objectives to achieve clean energy and efficient use of clean energy, effective alternative to coal-fired electricity generating capacity, reduce pollutant emissions. UHV power grid can promote hydropower, wind power and other clean energy cross delivery, reduce the proportion of abandoned wind "Three North" area, can significantly reduce the impact of the power industry on PM2.5 pollution. The measure, to accelerate the development of clean energy through the development of UHV, compared to 2010, 2015 and 2020, the power industry of the eastern and central regions PM2.5 pollution will be reduced by 9.7% and 19.6% respectively.

Can promote the development of UHV power grid layout optimization of coal, coal-fired East Midlands significantly reduce consumption, efficient use of coal washing and foreign power, improve local environmental quality. 2020, through the development of UHV transmission cross, eastern and central regions can be reduced coal consumption is about 500 million tons. Considering the spatial distance and differences in eastern and western regions in the space environment, population density, power density and other aspects of installed capacity, the estimated coal layout optimization by promoting the development of UHV, compared to 2010, 2015 and 2020, the power industry in Eastern central PM2.5 pollution will be reduced by 14.2% and 21.2% respectively.

I believe that the scientific development of the power industry is to solve the problem of pollution PM2.5 and other strong material foundation and technical means, particularly the role of cross-UHV transmission significantly. Combined with various types of large-scale energy base and large-scale development of new energy sources is an urgent need, we proposed to speed up the development of UHV transmission channel and cross the "three Chinese" synchronous network. Recent urgent need to expedite the approval and launch a number of connection UHV AC and DC transmission project in western, northern and eastern and central large-scale energy base load center region and promote the development of clean energy and efficient large-scale consumptive promote coal layout optimization, the full release of a strong intelligence grid important role in supporting environmental protection.

【 Related Links 】

UHV "four pay three straight" project during the year to start building

Companies in 2013 "two sessions" work report said the company this year will strengthen the network planning and preparatory work, participate in the national "five" special planning grid report preparation, good special demonstration on major issues, the completion of the national plan of Grid and "Country Network management areas "twelve-five" power plan "General report.

The company will strengthen coordination at all levels of interaction, and government to work together to establish mechanisms at all levels to focus on promoting the UHV preparatory work to ensure UHV "four pay three straight" (Ximeng - Nanjing, Huainan - Nanjing - Shanghai Mengxi - Changsha Ya'an - Anhui Nantes AC high voltage engineering, Hamilton South - Zhengzhou, Xiluodu - western Zhejiang, Hamilton North - Chongqing UHV DC project) approved and start the year.

In addition, the company will strive to Northern Zhejiang - Fuzhou UHV AC Engineering, quasi-East - Sichuan, Ximeng - Taizhou HVDC project approved during the year.