Complete Solaria flags going-concern doubts
** Shares of renewable energy firm Complete Solaria SPWR.O down 5.1% to $1.85 in extended trading ** Company raises substantial doubts on its ability to continue as a going concern, according to a filing with the Securities and Exchange Commission ** History of losses may continue in the future and the company may not achieve profitability or generate positive cash flow - SPWR ** Up till last close, stock up 3.2% YTD (Reporting by Pooja Menon in Bengaluru) ((Pooja.Menon@thomsonreuters.com;))