The project is the first indoor and largest capacity grid-side energy storage power station in China, locating next to the 220kV Furong Substation at Changsha City, Hunan Province. It covers an area of 993.81 square meters and has a total capacity of 26MW/52MWh. The power station is builtin a four-floor reinforced concrete building. The battery, PCS, transformer box, ring network cabinet and primary equipment are distributed in the corresponding rooms of different floors.
The energy storage project will adopt two kinds of operation mode: 1. one charge and one discharge; 2. one charge and two discharges. It charges for two hours at night, and discharges for 1 hour respectively at the noon peak and night peak.
