Liu Zhenya: Development of clean energy delivery smart grid

Liu Zhenya, Chairman of the China Electricity Council and State Grid Corporation of China, said on the 26th that during the “Twelfth Five-Year Plan” period, the core of China’s transformation of energy development mode is to change the “overly dependent on coal” energy allocation and “local balance”. The development mode of electric power, therefore, should vigorously develop UHV bone grids that can convert a part of coal transmission into long-distance transmission, and on this basis, develop a smart grid that can adapt to the development of large-scale energy bases and large-scale clean energy transmission.

Liu Zhenya spoke at the annual economic situation and power development analysis and forecasting conference organized by the ITU in Beijing on the same day: “The key to transforming the mode of power development is to form an UHV backbone network with coordinated development of AC and DC and reasonable structure as soon as possible. This is based on a strong smart grid with a strong resource allocation capability, strong ability to withstand risks, and advanced technology and equipment, accelerating the formation of a modern power grid system, and meeting the requirements of intensive development of various large-scale energy bases and large-scale delivery of clean energy. ”

He believes that China's energy allocation has always been dominated by coal transmission, and the development of electricity is based on local balance. As a result, large-scale and long-distance coal transmission from the coal bases in the west and north to the east and central regions has caused strained transport capacity and environmental pollution, as well as a sharp rise in the price of thermal coal.

“The fundamental way to solve the problem is to insist on coal transmission and transmission, and to implement the 'One Special Four' strategy, that is, the development of UHV power grids and the promotion of intensive development of large coal power, large hydropower, nuclear power, and large-scale renewable energy bases.” Liu Zhenya said.

It is understood that China is planning and constructing 15 large-scale coal-fired electricity bases, 13 large-scale hydropower bases and 8 million-kilowatt-class large-scale wind power bases, as well as several large-scale solar power generation bases, mostly distributed in the western and northern regions, and the east The distance from the electric load center in the central region is generally 800 to 3000 kilometers. Liu Zhenya said: "This basic national situation determines that our country's energy resources must be focused on centralized development and large-scale transportation, and the allocation of resources throughout the country should be optimized."

He also believes that the development of UHV and smart grids can promote the development of clean energy and the optimization of power supply structure. He predicted that by the end of the “Twelfth Five-Year Plan”, China will become the world’s country with the largest number of electric vehicles, and the number will exceed 1 million. He therefore proposed to speed up the construction of an electric vehicle exchange and charge service network, form a scale as soon as possible, and achieve interconnection and interconnection so as to promote the rapid development of the strategic emerging industry of new energy vehicles.

Safeguarding safety is the basic premise of electricity development. “This large earthquake in Japan caused a large-scale stop and power outage accident, which exposed the problem that Japan’s power grid is not able to allocate resources across regions in a wide range, lacks overall coordination and management, and the emergency system is not perfect.” Liu Zhenya believes that China should always adhere to Safety first, prevention-oriented policy, and prevention of large-scale power outages as a top priority, strengthen unified scheduling and coordination between power plants and power grids, and improve and perfect the construction of emergency systems under extreme conditions to ensure the safe and reliable supply of electricity. .