There seems to be no limit to what Elon Musk believes he can accomplish. Just days after surpassing the halfway mark on the world’s largest battery installation in South Australia, the CEO of Tesla has offered to rebuild Puerto Rico’s power grid from the ground up. Tesla has already begun deploying its Powerpack energy-storage technology paired with solar panels to bring critical infrastructure in Puerto Rico back online. Now its mission is to reenergize the island nation using similar technology but on a massive scale.