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Comment by dylan604

1 year ago

What's the geothermal power potential in Hawaii? Seems like it would be a good source for it to me.

The only island with active geothermal activity is an island without many people (compared to Oahu).

https://en.wikipedia.org/wiki/Puna_Geothermal_Venture

  • But to use geothermal power one does not need pre-existent geothermal activity, at least in principle. If the magma is close, you can get to a hot are by drilling, and then pump the cold water in and get the hot steam out.

    Now, I don't know how difficult and expensive it is in practice. But as a "baseload" geothermal looks very good. Does not depend on weather at al...

  • One could install transmission lines between the islands if Hawaii's politics wasn't so broken.

Equally important: how much would said geothermal cost?

  • The Hellisheidi Geothermal Power Plant, which is the largest geothermal power plant in Iceland cost approximately €380 million to build.

    However a smaller geothermal plant such as the Svartsengi Geothermal Power Plant cost only around €100 million to build

    • We'll see if it survives, since there's a large magma intrusion occurring just about under it. The recent eruption there (east of the plant) fortunately flowed away, and they've built a berm to deflect nearer eruptions, but an eruption directly under the plant, inside the berm, would destroy it.

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