Bulgarian shingle Smolyan VE has commissioned an 80-MW/320-MWh battery energy storage system (BESS) in southern Bulgaria, the firm said on Wednesday.

Bulgarian shingle Smolyan VE has commissioned an 80-MW/320-MWh battery energy storage system (BESS) in southern Bulgaria, the firm said on Wednesday.

Chinese energy storage system provider Shanghai Sermatec Energy Technology Co Ltd said it has connected to the grid a 10-MW/31-MWh battery energy storage system (BESS) in Bulgaria…