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Huadian (Haixi) New Energy Co. has connected the 270 MW/1,080 MWh Togdjog shared energy storage station in Chinas Qinghai Province to the grid, marking the start of operations of Chinas largest electrochemical storage facility.
Huadian (Haixi) New Energy Co., a subsidiary of China Huadian Group, has successfully completed full-capacity grid connection of the Togdjog shared energy storage station in a cold and high-altitude region of China. This milestone marks the start of operations of the largest electrochemical storage facility in China.
The project, located in Delingha, Haixi Prefecture, Qinghai Province, is located at an altitude of over 3,000 meters. The project has a power output of 270 MW and a total storage capacity of 1,080 MWh. It is divided into eight storage zones and 56 storage units. When fully operational, it is expected to provide approximately 300 GWh of clean energy per year.
The facility features prefabricated outdoor lithium iron phosphate (LiFePO4) battery storage systems supplied by Chinese storage system provider Sungrow. The company has installed 51 units of its Power Titan liquid-cooled storage systems. In addition, an experimental zinc-bromine flow battery storage system has been installed, although its capacity has not been specified.
Zinc-bromine flow batteries, a more mature technology in the flow battery category, offer three to five times the energy density of lead-acid batteries and are 10 to 20 percent less expensive than lithium-based storage batteries. The goal of the facility is to test the performance of zinc-bromine cell storage systems in large-scale, high-altitude wind-solar power facilities.
The new Togdjog shared energy storage station will join Huadians 1GW solar storage project base and 3MW hydrogen production project in Delingha, making it not only the largest electrochemical storage project in China, but also the largest intelligent shared energy storage station built and operating in cold and high-altitude regions. |
