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‘We need to not have all our eggs in one basket’: Why geothermal energy could be a game changer

By District Energy posted 09-14-2022 10:06

  

Fast Company

Summary

Geothermal power currently provides only a tiny fraction of the nation’s electricity. But as states ramp up their transitions to renewable electricity, some leaders see a big role for geothermal as a stable, renewable power source.

Used in the United States since 1960, geothermal plants pipe steam or hot water from deep wells to power turbines that produce electricity. Harnessing underground heat is more expensive than developing wind or solar energy, but experts say the dependable output from sources like geothermal is critical to shore up the grid at times where the sun isn’t shining or the wind isn’t blowing.

“[The capacity for geothermal power] is hugely greater than what we’re generating right now,” said Roland Horne, the Thomas Davies Barrow professor of earth sciences at Stanford University. “It’s not intermittent, it runs all the time, and that’s a very compelling advantage.”

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