Why Solar Energy Stocks Finally Had a Good Week

The week finally went well for solar energy investors, with stock values up double digits in many cases. And some of the most beaten-up residential solar stocks are outperforming the market.According to data provided by S&P Global Market Intelligence, SolarEdge (SEDG -1.83%) is up 6.4% this week as of 10:30 a.m. ET, Sunrun (RUN -3.61%) has gained 19.2%, and Sunnova Energy (NOVA -3.08%) is up 34.9%. It was a broad move, but some key companies drove the industry higher.Is Sunnova's pop sign of a bottom?In sep ...