US institutional investment fund sponsor Foss & Company has clinched a deal to become the exclusive provider of tax equity for a 174-MW/384-MWh battery energy storage system (BESS) project in Texas owned by a US unit of Japan's Tokyo Gas Co Ltd (<a href="https://quote.jpx.co.jp/jpx/template/quote.cgi?F=tmp/e_stock_detail&MKTN=T&QCODE=9531" target="_blank">TYO:9531</a>).