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

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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. It actually has to be brand new and it has to be approached from first principles,” according to Redd, who was an engineer on Dragon and Starship at SpaceX.

Redd left SpaceX and founded Endurance Energy, a startup that has raised a $54 million Series A to eventually harness terawatts of geothermal energy deep in the ocean, TechCrunch has learned. Founders...

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