Recently, the China-US Smart Grid Dialogue hosted by the China National Energy Administration, the Federal Energy Administration Commission, and the US Trade Development Agency was held in Shenzhen. The meeting was convened to implement the "Memorandum of Understanding between the China National Energy Administration and the U.S. Federal Energy Management Commission" signed by the two parties during the fourth round of the China-US Strategic and Economic Dialogue. At the meeting, the National Energy Administration first defined and characterized the Chinese smart grid. At the current stage, development priorities and other issues have given clear answers.
Zhao Yinong, Director of the Integrated Division of the National Energy Administration's Power Division, pointed out that the smart grid should have the following five characteristics: Openness, which provides intelligent management of power supply and user access, adapting to both large power access and distributed power supply, especially Renewable energy access, plug and play, uninterrupted access, and orderly exit; security, that is better to identify and respond to human or naturally occurring disturbances, in natural disasters, external damage and computer attacks, etc. Safeguard personal, equipment, and power grids in different situations; efficiently, adopt advanced real-time monitoring, on-line control technologies, and demand-side guidance to achieve optimal operation of the power grid, intelligent management of power facility overhauls, peak load filling, and enhanced grid transmission capacity , Extend the useful life of equipment, improve energy efficiency; Clean, that is, support the large-scale application of wind energy, solar energy and other renewable energy, provide users with more abundant clean energy; self-healing, that is, through real-time monitoring of the power grid, online analysis and forecasting And automatic control, timely detection of hidden troubles, rapid diagnosis, isolation, elimination of failure, self-recovery , To avoid blackouts, improve the reliability of grid operation.
Wu Yun, the deputy director of the State Power Planning Research Center, said that the definitions proposed by the National Energy Administration are not the same as the several definitions that have been made before this. In the near term, China's smart grid will strive to solve two problems, one is to adapt to new energy and distributed energy access requirements. Including wind power, solar power, micro-grid, micro-home power generation, electric vehicles, new energy storage equipment, etc.; Second, the use of information technology in the power grid, and promote the upgrading of the power grid industry.
It is reported that after the smart grid has been fully promoted, it will have a major impact on the market. Some experts have suggested that the implementation of smart grid reform in China will greatly stimulate the industries of transformers, smart terminals, and network management technologies, which can at least pull up the national economy by 1-2 percentage points each year. . In related interviews with companies such as Ke Lu Electronics, GE, and China Putian, they all expressed optimism about their market potential.
According to the China Energy News, although the official government gave clear answers to many questions, the specific timetable for the development of smart grids is still unknown. Knowing how easy it is, there are still many challenges in the development of smart grids. Wu Yun said that in terms of technical level, China's energy storage technology and complex information processing technology still need to be improved.
According to Wu Yun, the economical nature of energy storage is unsatisfactory, but ultimately it is due to insufficient technology maturity. For example, the current unit of kilowatts for pumped storage is 40005000 yuan, and its development is limited by geographical conditions; the capacity cost of lithium batteries used for energy storage is around 5 yuan per watt if the daily pumped storage power plant is regulated. With the functional configuration of energy storage power stations, its cost will exceed 30,000 yuan. At the same time, it has a short service life and pollution problems. In complex information processing, there are also certain challenges in the use of online simulation technology for power systems.
A senior expert, who declined to be named, stated that apart from technology, the biggest obstacle to the development of smart grids is still institutional issues. For example, the power interaction and demand-side response links in smart grids involve electricity prices, but at present, China’s electricity prices. With the control of the Price Division of the Development and Reform Commission, it cannot be said that change will change.
It is precisely because of this that the National Energy Administration focused on the development of smart grids and put forward a rationalization of the development mechanism.
During the 12th Five-Year Plan period, the National Energy Administration will carry out the first batch of smart grid pilot projects, including the establishment of a smart grid pilot project information database, the identification of 21 smart grid pilots, the study of smart grid technology application scope and standard system, and exploration of effective economic compensation models. And investment recovery mechanism.
Now it's all about crossing the river with a stone, taking a step, electric reform, or marketization. The development of a smart grid is a gradual process itself. Now that the government has expressed its position, various policies will be introduced. We should still be optimistic about this. The above experts said.
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