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Economic Daily: Accelerate the layout of the new energy storage industry.
china energy storage network:The Government Work Report proposes the development of new energy storage. New energy storage refers to new energy storage technologies other than pumped storage, including electrochemical energy storage, compressed air energy storage, flywheel energy storage, heat storage, cold storage, hydrogen storage and other technologies. Under the new situation, accelerating the layout of the new energy storage industry is facing great opportunities.
obvious advantages and broad prospects
In recent years, my country's new energy has maintained a good trend of high-speed development, high-proportion utilization, and high-quality consumption. As of the end of last year, the installed capacity of renewable energy in the country's total installed capacity of power generation exceeded 50%, historically exceeding the installed capacity of thermal power, and the installed capacity of wind power photovoltaic exceeded 1 billion kilowatts. Renewable energy power generation accounts for about 1/3 of the electricity consumption of the whole society, and wind power photovoltaic power generation has maintained double-digit growth.
It is estimated that in 2060, China's wind power, solar power and other new energy installed capacity will reach billions of kilowatts. If part of the electric energy is stored in the warehouse like ordinary commodities, the user can send it out when needed and store it when not needed, so that the real-time balance of the power system can be maintained. Energy storage facilities are this important "warehouse".
With the increasing proportion of new energy generation, the demand for new energy storage in power system is becoming more and more intense. Among the energy storage facilities, the most widely used, mature and economical one is the pumped storage power station, but it has high requirements for geographical conditions, long construction period and difficult to flexibly layout. The new energy storage construction period is short, the site selection is simple and flexible, and the adjustment ability is strong, which is complementary to the advantages of pumped storage.
Experts said that the new energy storage is a key part of the construction of a new energy system. With the rapid growth of the installed scale of new energy storage, its role in promoting the development and consumption of new energy and the safe and stable operation of power systems has gradually emerged. Pan Wenhu, director of the power dispatch control center of the State Grid Wuhu Power Supply Company, said: "In recent years, the construction of energy storage power stations in Wuhu, Anhui Province has been accelerating, with 13 new energy storage power stations in Wuhu City last year, with a grid-connected capacity of 227300 kilowatts. In February this year, Wuhu City, all kinds of energy storage power stations participated in more than 50 batches of regional power grid peak regulation, and new energy consumption of about 6.5 million kWh, which played an important role."
Experts said that the "14th Five-Year Plan" period is an important period of strategic opportunities for the development of new energy storage. my country has reached the world's leading level in technologies such as lithium-ion batteries and compressed air energy storage. Facing the world's energy technology competition, it supports green and low-carbon technological innovation and accelerates the construction of a new energy storage technology innovation system.
Focus on green low-carbon transformation
2022At the beginning of the year, the National Development and Reform Commission and the National Energy Administration jointly issued the "14th Five-Year Plan for the Development of New Energy Storage", clarifying that by 2025, the new energy storage will enter the stage of large-scale development from the initial stage of commercialization, with large-scale commercial application conditions.
Under the favorable policy, the diversified high-quality development of new energy storage has achieved remarkable results. "New energy storage has increasingly become a key technology for my country to build a new energy system and a new power system, an important direction for cultivating emerging industries, and an important starting point for promoting the green and low-carbon transformation of energy production and consumption." Bian Guangqi, deputy director of the Department of Energy Conservation and Science and Technology Equipment of the National Energy Administration, said.
By the end of last year, the cumulative installed capacity of new energy storage projects nationwide had reached 31.39 million kW/66.87 million kWh, with an average energy storage duration of 2.1 hours. From the perspective of investment scale, since the "14th Five-Year Plan", new energy storage installations have directly promoted economic investment of more than 100 billion yuan, further expanding the upstream and downstream of the industrial chain, and becoming a new driving force for my country's economic development.
New energy storage installations are growing at the same time as new technologies are emerging. Since last year, a number of 300 MW grade compressed air energy storage projects, 100 MW grade flow battery energy storage projects, megawatt grade flywheel energy storage projects started construction, gravity energy storage, liquid air energy storage, carbon dioxide energy storage and other new technologies on the ground implementation, the overall trend of diversified development. By the end of 2023, lithium-ion battery energy storage accounted for 97.4 percent, lead-carbon battery energy storage accounted for 0.5 percent, compressed air energy storage accounted for 0.5 percent, flow battery energy storage accounted for 0.4 percent, and other new energy storage technologies accounted for 1.2 percent.
"The new energy storage is a disruptive technology for building a high proportion of new energy power systems, and will continue to increase the layout." Song Hailiang, Secretary of the Party Committee and Chairman of China Energy Construction Group Co., Ltd., said that in terms of industry leadership, we have advanced the layout of large-scale compressed air energy storage technology and a number of innovative demonstration projects. At the same time, we focus on the large-scale safe and efficient application of electrochemical energy storage, and take the lead in carrying out the key technology and equipment research of gravity energy storage, and actively promote the construction of Zhangjiakou 300 megawatt-hour gravity energy storage demonstration project.
utilization efficiency to be improved
In order to meet the urgent demand of power system for regulation capacity, the installed capacity of new energy storage still needs to maintain rapid growth. As a strategic emerging industry, new energy storage is still in the initial stage of development, and there are some problems, such as low level of dispatching and utilization, security needs to be strengthened.
According to industry insiders, according to the requirements of local energy authorities, many new energy projects are equipped with energy storage power stations. However, due to insufficient capacity such as active support, unclear business model and imperfect management mechanism, the utilization rate is low.
In November last year, the National Energy Administration issued the ''Notice on Promoting the Grid-connected and Dispatching Application of New Energy Storage (Draft for Comment) '', which clarified the management methods, technical requirements, and organizational safeguards for the grid-connected and dispatching application of new energy storage. It is expected to improve the utilization level of new energy storage, guide the healthy development of the industry, and will have a positive impact on the development of energy storage in terms of power dispatch and market construction. 
Liu Yafang, part-time professor of Zhejiang University and former deputy director of the Science and Technology Department of the National Energy Administration
New energy storage as industrialization, industrialization, commercial application technology, the development of the background color is innovation. Liu Yafang, an adjunct professor at Zhejiang University and former deputy director of the Science and Technology Department of the National Energy Administration, said that as the main body of innovation, enterprises should not only pay attention to the technical performance of the energy storage device itself, but also pay attention to systematic thinking, intelligent control, and intelligent operation. We should increase investment in the intelligent control of the operation of energy storage facilities and power market quotation, give full play to the flexibility of energy storage to adjust the value, to achieve high efficiency operation, high-yield operation..
Wang Zeshen, Secretary General of China Chemical and Physical Power Industry Association
Wang Zeshen, secretary general of the China Chemical and Physical Power Industry Association, suggested that China's national conditions and the development stage of the power market should be comprehensively considered, the top-level design of energy storage policies should be strengthened, the application scenarios and cost compensation mechanisms of energy storage in new power systems should be studied, ideas and methods to solve bottlenecks restricting the development of energy storage should be explored, and various new energy storage technologies should be promoted to flourish and play an important supporting role in ensuring the safe and stable operation of new power systems.
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