Pumped storage power station construction ushered in a key break. Recently, the National Development and Reform Commission issued the Opinions on Further Improving the Formation Mechanism of Pumped storage Price, proposing to form electricity price in a competitive way, give full play to the role of electricity price signal, mobilize the enthusiasm of all sides, and create more favorable conditions for the accelerated development of pumped storage power stations and give full play to the comprehensive benefits.

, experts say, carbon neutral targets, the new energy on a large scale grid poses challenges to the stability of power grid safe operation, compared to chemical energy storage, pumped storage power plant technology is more mature, lower cost, stronger regulation ability, higher security, must accelerate the system mechanism reform, fully attract social capital to intensify the building of pumped storage power station.

At the 75th session of the United Nations General Assembly, China made a solemn commitment of "carbon peak and carbon neutral". At the Climate Ambition Summit, China set a specific target of increasing the total installed capacity of wind power and solar power to more than 1.2 billion kW by 2030. At that time, the proportion of wind power and solar power will be greatly increased, and the new power system with new energy as the main body will be formed.

The randomness and volatility of new energy determine that the larger the grid-connected scale of new energy, the greater the demand for coordination, balance and regulation. The research shows that when the proportion of new energy in the system reaches 10%, the regulation demand of the system will increase sharply with the increase of the proportion of new energy. In order to ensure the safe and stable operation of power system, a large number of regulation and energy storage power sources are needed.

Pumped storage power station is a hydroelectric power station that pumps water from a low location to a high location to store energy until the power system needs it. "The pumped storage power station has short start-stop time, fast regulation speed, flexible conversion of working conditions, and double regulation ability. It is a regulation power source and energy storage power source with mature technology, reliable operation and relatively economic." "Said Hao Rongguo, Party secretary and chairman of Power China Beijing Survey and Design Institute Co., LTD.

The investment of pumped storage power station also has good comprehensive benefits. Yan Xudong, deputy general manager of Power China Beijing Survey, Design and Research Institute Co LTD, said the construction of the power station can improve local transportation and living infrastructure. After the power station is connected to the grid, it will form landscape resources relying on the upper and lower reservoirs to drive the supporting development of commerce and tourism, becoming an important starting point to promote regional green development.

Up to now, the proportion of pumped storage power in China's total installed power supply is only 1.4%. To achieve the overall goal of "by 2030, the total installed capacity of wind power and solar power in China will reach more than 1.2 billion kW, and the proportion of non-fossil energy in primary energy consumption will reach about 25%", the scale of pumped storage power plant construction is far from enough.

In addition to the lack of scale and geographical distribution, the first batch of pumped storage power stations are mainly distributed in the more developed east and middle regions of China. Experts say that with the construction of large wind power bases and solar power bases in the west and north, it is urgent to build pumped-storage power stations with strong peak regulating capacity, outstanding energy storage advantages and good economy in the transmission end areas, and can improve the economy of transmission lines.

Previously, the factors restricting the healthy development of pumped storage power stations mainly focus on two aspects: first, the electricity price policy of pumped storage power stations is not perfect, the construction cost of pumped storage can not be reasonably transmitted to users through the transmission and distribution price, and the power grid enterprises bear too much pressure; Secondly, all kinds of planning systems are not coordinated and unified, resulting in a large number of high-quality pumped storage station site resources located in the ecological red line, which seriously limits the site selection of pumped storage power stations.

With the continuous improvement of the electricity price policy, the domestic pumped storage industry is expected to usher in a new round of development opportunities. During the 14th Five-Year Plan period, China will push hard to put pumped storage power plants under construction into production on schedule, accelerate the start of pumped storage power plants that have been included in the planning and mature conditions, and accelerate the preliminary work of projects that are included in the mid - and long-term development planning, Hao said.

Hao Rongguo said that in order to promote the development of pumped storage power stations, to do a good job in scientific planning and reasonable layout, not only moderately ahead, but also scientific and reasonable, as far as possible to reduce the cost of electricity for the whole society; At the same time, the construction and operation costs of pumped storage power stations should be reasonably regulated. It is necessary to further improve the price formation mechanism of pumped storage power stations, actively promote pumped storage power stations to participate in competitive power markets such as electric energy and auxiliary services, and recover costs and gain profits through the market.

The expansion of the installed scale of new energy also puts forward new requirements for the utilization of land resources. Hao Rongguo suggested that the relevant national departments should coordinate the development of new energy and pumped storage with the utilization of land and resources and environmental protection, better solve the relationship between development and protection, and help the transformation of energy structure and the realization of the "double carbon" goal when carrying out territorial