Solar products maker Qcells, a subsidiary of Seoul-based Hanwha Solutions Corp (KRX:009830), today unveiled an expansion of its strategic pact with Microsoft Corp (<a href="https://www.nasdaq.com/market-activity/stocks/msft" target="_blank">NASDAQ:MSFT</a>) to supply the US tech giant with 12 GW of solar modules and engineering, procurement and construction (EPC) services over eight years.