CORONA, CA – MAY 03: Workers install solar panels on the roofs of homes under construction south of Corona Thursday morning May 3, 2018. The California Energy Commission voted 5-0 Wednesday, May 9, to adopt new energy building standards requiring solar panels for virtually all new homes built in the state starting in 2020. The decision likely will make California the first state in the nation requiring solar for new houses and low-rise condos and apartments.”n (Photo by Will Lester/Inland Valley Daily Bulletin via Getty Images)