schwit1 quotes a report from Futurism: In a continued streak of goodwill during this year's devastating hurricane season, Tesla has been shipping hundreds of its Powerwall batteries to Puerto Rico in the aftermath of Hurricane Maria. Since the hurricane hit on 20 September, much of the U.S. territory has been left without power -- about 97 percent, as of 27 September -- hampering residents' access to drinkable water, perishable food, and air conditioning. The island's hospitals are struggling to keep generators running as diesel fuel dwindles. Installed by employees in Puerto Rico, Tesla's batteries could be paired with solar panels in order to store electricity for the territory, whose energy grid may need up to six months to be fully repaired. Several power banks have already arrived to the island, and more are en route.