Large-scale centralized energy storage power station factory

In terms of installed capacity, new energy storage power stations are now being built in a more centralized way and large scale with longer storage duration period, said the administration.

The energy storage station is a supporting facility for Ningxia Power's 2MW integrated photovoltaic base, one of China's first large-scale wind-photovoltaic power base projects. It has a planned total capacity of 200MW/400MW, and the completed phase of the project has a capacity of 100MW/200MW.

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Technicians inspect wind farm operations in Hinggan League, Inner Mongolia autonomous region, in May 2023. WANG ZHENG/FOR CHINA DAILY China has been stepping up construction of new energy storage in recent years to build a new power system in the country amid its green energy transition, said authority.

The northwestern regions of the country, rich in solar and wind energy resources, has become the fastest region in developing new energy storage in the country, with 10.3 million kilowatts of new energy storage installed capacity put into operation so far, accounting for 29.2 percent of the country's total, it said.

As the first pioneering project to combine semi-solid state batteries with energy storage system, Kehua adopted four 1.25MW high-performance energy storage converters, which were connected in parallel to a single 5,000kVA transformer, achieving a 35kV AC grid-connected output, which ensured the high efficiency and stability of power transmission.