Huadian Group's 2025 Energy Storage Project Successfully Connected to Grid

Published: Mar 27, 2026 16:17

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Recently, the 2025 Electrochemical Energy Storage Black Start and Frequency Regulation Key Technology Research and Application Project of Huadian Group Wuchang Branch was officially and successfully accepted for grid connection. The project was jointly advanced by Huadian Group, Shanghai Electric Power Transmission & Distribution Group, and REPT Battero. As a key pilot project under the national 14th Five-Year Plan, the project took the lead in achieving engineering application, marking that REPT Battero's 324Ah battery cell has 1P C-rate performance and has passed testing under relevant national standards, enabling it to participate in future grid-side frequency regulation projects. The project accepted for grid connection this time is located in Wuhan, Hubei, with a total capacity of 9MW/9.554MWh, consisting of two 4.5MW/4.5MWh energy storage units. It is intended to build electrochemical energy storage black start capability for two sets of 9E-class combined-cycle generating units and, when the ESS is idle, to participate in secondary frequency regulation ancillary services for the power grid through the combined thermal power and energy storage frequency regulation mode.

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