Meng Qingqiang, General Manager of Chongqing Electric Power Company, recently stated in a media interview that according to the development plan of Chongqing Power Grid; Twelfth Five Year Plan; During this period, State Grid Corporation of China will invest 75.1 billion yuan in the construction and renovation of Chongqing's power grid, transforming the city's 500 kV power grid from; Day” Upgrade the glyph ring network to“ Ladder” The Y-shaped dual grid architecture comprehensively promotes Chongqing power grid to become a smart grid system in the era of ultra-high voltage. According to the 12th Five Year Plan; According to the Investment Cooperation Agreement, State Grid Corporation of China will invest 75.1 billion yuan to upgrade and rebuild the existing power grid. It will utilize advanced transmission technologies with high capacity, high efficiency, and long distance of ultra-high voltage to accelerate the construction of ultra-high voltage channels and actively promote the construction of smart grids through advanced technologies, comprehensively improving the intelligence level of Chongqing's power grid. At the same time, a new round of rural power grid renovation and upgrading will be carried out to improve the quality of electricity and solve the problem of low voltage in local power grids. In addition, State Grid Corporation of China will fully utilize cross provincial and cross regional networking resources, optimize resource allocation, and provide maximum external power support to Chongqing, ensuring that Chongqing's power supply meets the needs of Chongqing's economic and social development. In 2014, ultra-high voltage AC will have two landing points in Tongliang and Wanzhou in Chongqing. In 2015, the Xinjiang Zhundong Chongqing Yubei ultra-high voltage DC project will be completed and put into operation. At that time, Chongqing will achieve a hybrid power receiving pattern of ultra-high voltage AC and DC, opening up Chongqing; The channel for foreign electricity to enter Chongqing; Thoroughly break through the energy bottleneck that restricts the development of Chongqing. It is expected that by 2015, after optimizing and upgrading the structure of the 500 kV and 220 kV power grids, Chongqing's current; Day” The zigzag double ring mesh network will transition to; Ladder” A double loop network framework is formed to form a smart grid under a chain double loop network. At present, the Chongqing Power Grid's ultra-high voltage AC and DC projects have carried out preliminary line selection, site selection, feasibility study and demonstration work, and have been reported to the National Energy Administration; Roadway” Once the project is approved by the government, Chongqing Electric Power Company will immediately start the project construction work.