Cegli via Adobe Stock

Cegli via Adobe Stock

Puerto Rico’s power grid has been down since Hurricane Maria devastated the island on Sept. 20. With reports that the island could continue without power for months, several tech companies are stepping in to provide relief—in the form of energy.

American automaker and energy storage company Tesla has begun sending hundreds of its Powerwall battery systems—large batteries designed for homes that store power from solar panels—in hopes of restoring electric power to the island. The company is currently working with local companies to find the best locations for these power banks, which Tesla released to the market in 2015, and has even sent its employees to the island to help install them. CEO Elon Musk has also personally donated $250,000 to the hurricane relief effort.