Endurance Energy raises $54M to harness a massive untapped energy source

After you’ve worked on rockets that find their way to outer space, it can be hard to come up with a second act. For SpaceX alumni Andrew Redd, it meant looking deep in the ocean. Redd, who grew up in the Pacific Northwest, a region affected by uncharacteristic heat waves and catastrophic fires in recent years, knew he wanted to tackle something in renewable energy. “But the experience at a very hardcore company like SpaceX made me realize that I can’t just come up with an incremental solution. …