US clean energy firm Clearway Energy Inc (<a href="https://www.nyse.com/quote/XNYS:CWEN" target="_blank">NYSE:CWEN</a>) on Thursday announced a series of contracts for 490 MW/1,356 MWh of Tesla Inc’s (<a href="https://www.nasdaq.com/market-activity/stocks/tsla" target="_blank">NASDAQ:TSLA</a>) Megapack battery energy storage systems.