Swedish renewables developer OX2 AB (<a href="https://www.nasdaqomxnordic.com/aktier/microsite?Instrument=SSE227438&name=OX2&ISIN=SE0016075337" target="_blank">STO:OX2</a>) said today that it has reached an agreement to sell a 42.5-MW/42.5-MWh battery energy storage system (BESS) in Sweden, the first such project to be originated and developed by the company.