Finnish technology group Wartsila Corp (<a href="https://www.nasdaqomxnordic.com/aktier/microsite?Instrument=HEX24394&name=W%C3%A4rtsil%C3%A4%20Oyj%20Abp&ISIN=FI0009003727" target="_blank">HEL:WRT1V</a>) has been selected to provide a 15-MW/30-MWh battery energy storage system (BESS) for a solar plant of Tampa Electric Company (TECO) in Florida.