RWE has started construction of one of Germany’s largest battery storage facilities at its power plant locations in Neurath and Hamm in North Rhine-Westphalia state.

The €140m ($149.52m) plant will have a capacity of 220MW and storage capacity of 235MWh, and consist of 690 lithium-ion battery blocks.

“As the proportion of renewables in the electricity mix increases, so does the need for flexible battery storage systems,” RWE Generation CEO Roger Miesen said.