Canadian Solar announced that CSI Energy Storage a subsidiary of its majority-owned subsidiary CSI Solar Co., Ltd., has entered into an agreement to deliver 49.5MW/99MWh of turnkey battery energy storage solutions to a leading European specialist in solar energy development, production and storage, Cero Generation, and Enso Energy. Cero's 11 GW development portfolio is one of the largest in Europe, covering utility-scale solar as well as integrated energy storage solutions.