Since the beginning of this year, new wind power and solar energy projects have been launched across the country, and the energy storage market has exploded. As an emerging energy storage station operation model, shared energy storage has received more and more attention. A large number of shared energy storage stations have been built in Guizhou, Zhejiang, Jiangsu and other places.
In Yangkou Town, Nantong City, Jiangsu Province, next to the wind power and photovoltaic project are rows of shared energy storage power stations composed of white energy storage cabins. The person in charge said that this project was connected to the grid on November 29, with an investment of more than 790 million yuan. The excess electricity generated by multiple surrounding wind power and photovoltaic power stations can be stored to provide power to residential areas or industrial enterprises.
Shang Sen, the person in charge of the operation and management of a shared energy storage power station in Nantong, Jiangsu: In terms of scale, it is currently the largest large-scale shared energy storage power station in East China. Our configuration is 200,000 kilowatts and 400,000 kilowatt hours. This means that it can charge 200,000 kilowatt-hours of electricity in one hour, and it can discharge the corresponding amount of electricity when it is fully charged.
Shared energy storage stations not only connect to wind power and photovoltaic power stations to store excess power generation during peak power generation periods, but also connect to power-consuming enterprises to provide electric energy to enterprises during peak power consumption periods.
Pan Zaibin, director of electrical appliances in the engineering department of a company in Changxing, Zhejiang: Shared energy storage stations have greatly reduced our electricity costs. At present, we only use about 20% to 25%.
Wind power and photovoltaic power generation are random and intermittent, and many provinces require power stations to be equipped with energy storage systems for 1 to 2 hours. Industry insiders said that the cost of building energy storage by yourself is high, charging and discharging only once a day, and the use efficiency is low. Shared energy storage power stations are large in scale and connect upstream power stations and downstream power consuming enterprises. They can be charged and discharged multiple times a day, improving usage efficiency. You can also participate in power grid dispatching and earn price differences through peak shaving and valley filling, with low overall costs. By leasing shared energy storage, construction costs of new energy power stations have generally been reduced by more than 10%. Shared energy storage has become very popular and ushered in a construction peak.
