Work begins on 1.4 GWh project in Inner Mongolia combining lithium-ion and redox flow storage technologies – pv magazine International

From ESS news

Inner Mongolia Energy Group has begun construction on a 605 MW/1,410 MWh energy storage plant in the Ulan Buh desert, near the city of Bayannur on the Mongolian border, to support large-scale renewable energy development in the sun-rich autonomous region.

The facility is the first phase of the Dengkou renewable energy storage project with a total capacity of 1,000 MW/2,290 MWh and a cost of RMB 2.1 billion ($295 million).

The first-stage power plant will feature a mixed-chemical energy storage facility, with 505 MW/1,010 MWh coming from lithium-iron-phosphate batteries and 100 MW/400 MWh coming from vanadium-liquid batteries.

The winners of the tender for the lithium-ion battery energy storage component of the project were announced on September 5, the day of the groundbreaking ceremony. The first place among the bidders was taken by Xuji Electric with a bid price of RMB 0.495/Wh (USD 0.070/Wh).

Billed as the largest single-capacity energy storage station under construction in China, the project is scheduled to be connected to the grid by the end of this year. Once completed, the storage system will largely supply green energy to the Beijing-Tianjin-Hebei cluster.

Inner Mongolia is the province with the largest coal mining potential in China, but it also has ambitious plans to exploit its vast wind and solar energy potential.

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