The reporter learned from the Qinghai Electric Power Company of the State Grid of China on the 11th that as of the end of February, the Qinghai power grid had issued 101.27 million kwh of new energy through shared energy storage, marking the first time that China's shared energy storage has exceeded the 100 million mark.
Qinghai, as one of the regions with the most abundant clean energy resources, Cecep Solar Energy Co.Ltd(000591) resources account for about 11% of China's total, and light and heat resources rank second in China. At the same time, Qinghai also has a large number of deserts, Gobi and deserts that can be used for new energy development. As a place rich in clean energy, the development of energy storage industry is one of the important means to support the large-scale development of clean energy.
According to reports, by the end of February this year, the electrochemical energy storage capacity of Qinghai power grid connected to the grid was 363000 kW / 498000 kwh, including 2 power stations participating in shared energy storage, with a total capacity of 82000 kW / 164000 kwh. A total of 366 new energy power generation enterprises participated in shared energy storage transactions, with a total of 3533 transactions, a total charge of 99.03 million kWh and a total discharge of 81.34 million kwh, It has achieved mutual benefit and win-win results between new energy enterprises and energy storage enterprises, alleviated the pressure of power grid peak shaving, and has important reference significance for the large-scale development of energy storage in China.
It is reported that the characteristics of new energy power generation, such as poor regulation flexibility, intermittency and strong volatility, have brought great challenges to the consumption and large-scale development of new energy. Energy storage plays an important role in peak shaving and valley filling of power grid. When there is excess power generation from new energy, the excess power will be stored and released when there is a shortage of power.
At present, there are three main scenarios of energy storage application in China: power supply side, load side and power grid side. However, the three application scenarios are generally independent, decentralized and low utilization. After energy storage enters the market as the main body, it lacks a mature commercial operation mechanism.
In order to fully release the energy storage development potential of Qinghai power grid, in 2018, State Grid Qinghai power actively carried out innovative research on the application of shared energy storage, put forward the concept of "shared energy storage" for the first time in China, integrated the energy storage resources of power supply, users and power grid, optimized the allocation with the power grid as the central platform, and provided services for power supply and users, Flexibly adjust the control mode to realize the whole network sharing of energy storage resources, so as to fully release the energy storage capacity of all parties in the source network. (end)
