The hospital offers services to some 3,000 young patients. Tesla's solar system is reportedly providing the hospital with all the electricity it needs.
Almost a month after Hurricane Maria made landfall, most of the island is still without electricity. Officials have estimated it could be months before power is restored.
The governor plans to sign a bill that will let homeowners sell excess electricity to their utility at retail rates. Solar companies stopped seeking new customers because incentives were phased out.
Utilities say consumers who put solar panels on their roofs should help pay to maintain the lines that carry the power they sell back into the system. Panel leasing firms say that's anti-competitive.
With the price of solar panels falling, more municipalities and homeowners are installing them. But having solar panels doesn't mean you won't lose power in a blackout — at least not yet.
Officials want to overhaul the state's energy grid. Experts say the plan would help utilities withstand severe weather events, but it would also require a massive re-engineering of the power system.