John Berger, chairman and chief executive officer of Sunnova Energy Corp., speaks during the 2019 CERAWeek by IHS Markit conference in Houston, Texas, U.S., on Thursday, March 14, 2019. The residential solar company Sunnova Energy took a beating this week as investors dumped their shares after the announcement of a stock offering plan rattled confidence in the company. Sunnova shares plummeted 26.7% Thursday after the residential solar company announced a $100 million at- the-market stock offering program. ...