State Grid Corporation of Nanjing East - Shandong ± 660kV DC transmission project, was held yesterday in Yinchuan commissioning ceremony. The project will achieve the province's energy resources directly to the load center.
As China's energy distribution of severe inequality, the coal resources are mainly located in Shanxi, Inner Mongolia,glue stick Ningxia, Shaanxi, water resources are mainly located in the southwest; onshore wind energy resources are concentrated in the northeast, northwest, north China. Meanwhile, energy consumption is mainly concentrated to the north, east and central China, from the major energy base of 800 to 3000 km.
National Grid Ningxia Electric Power company official said in an interview, Shandong province in China's energy demand in 2010, Shandong power grid gap of about 5.5 million kilowatts installed capacity, "second five" and after the gap will gradually increase. Expected that the project is completed to provide 400 million kilowatts of Shandong clean electricity each year over 22 billion kwh electricity transmission,glue gun electricity can greatly ease the tense situation in Shandong, Nanjing and East units from the original more than 70% efficiency to 90 % or more. "This is equivalent to one stroke opened the Northwest power grid and load centers in eastern channel." Technical staff to the National Grid, a newspaper said.
Meanwhile, National Grid responsible person, the project to improve the ability of independent innovation of China power grid construction and electrical equipment manufacturing core competencies is important. According to report, this project all the electrical equipment from ABB Xi'an transformer companies and limited liability companies.
Machinery and equipment industry analyst with National Securities Fu Choi Ha said that according to the latest national grid, "Twelfth Five-Year Plan", the DC transmission business will be a big bang, the main electric companies will thus usher in a "golden age."
According to the National Grid Power Company in Ningxia relevant personnel, in Nanjing East - Shandong ± 660kV DC transmission project, the DC system design is complete key construction projects. To further enhance the localization of DC equipment level, to control project cost, project all the equipment for the domestic public bidding. Converter transformers, DC field equipment, converter valves, control and protection equipment, dry-type smoothing reactors and other equipment were the main converter station technology roadmap by the different domestic design and manufacture of major equipment manufacturers.
According to the national grid plan, built in 2020 with "north, central, eastern" region as the core, connecting China's major regional power grid and major load centers of the special high-voltage backbone grid. As a result, "five-second" period "three China" region UHV line will be built "three vertical and three horizontal one ring." UHV AC and DC total investment of about 530 billion yuan, of which current investment is about 270 billion yuan, exchange investment of about 260 billion yuan. Total than "during" the 200 billion investment, a full increase of 25 times.
Other media reported that, despite the national grid separation of major program has been approved by the State Council, preparatory work is currently being organized, but the transmission and distribution works remain in the national grid. National Grid will continue the development of DC transmission and powerful impetus given to continue.
Fu Choi Ha So expect 2011 to 2012 is the peak power of investment, with the DC field equipment made the breakthrough, the power equipment manufacturing industry or listed companies to benefit from massive investment in power.