Fred Closter checks his Tesla Powerwall battery system on Thursday Feb. 17, 2022 at his home in Boynton Beach. Closter’s $40,000 solar power installation, which includes $24,000 in solar panels and two $8,000 Tesla storage batteries, enables the retiree and his wife to live almost completely free of FPL’s grid. (Susan Stocker / South Florida Sun Sentinel)
