Geothermal Could be Green Energy Wild Card

December 29, 2020

Advantages abound if these increasingly optimistic reports pan out.

8 Responses to “Geothermal Could be Green Energy Wild Card”

  1. grindupbaker Says:

    I wonder what the cost per kilowatt is to provide. The narrator was traumatized in childhood by ordering a Montreal Canadiens hockey sweater & getting a Toronto Maple Leafs one, little factoid.

  2. redskylite Says:

    Geothermal is currently one of New Zealand’s cheapest sources of new electricity generation, currently supplying just under 20% of it’s total energy supply, with development potential. Iceland’s geothermal activity produces nearly 30% of total generated electricity; if you’ve got it – then use it.


    “Isolated and challenged by a harsh climate and battered by the financial crisis of 2008, Iceland has successfully moved away from fossil fuels and shifted to 100% electricity production from renewable sources. ”

    • J4Zonian Says:

      All the more remarkable because their aluminum industry makes Icelanders the highest per capita electricity users in the world.

      And more than 80% of their primary energy is renewable, also highest in the world (66% is geothermal). Since they also have one of the highest market shares for EVs in the world as well, (25% and rising) Iceland is almost certain to be the first industrial society to run on 100% clean safe renewable energy.

  3. Brent Jensen-Schmidt Says:

    Video with information and no propaganda hype. Encouraging!

  4. Gingerbaker Says:

    I recall an ancient video – was it posted here? – of an emeritus M.I.T. professor saying geothermal could be sited almost anywhere and could use fracking techniques to shatter deep underground rock formations to increase porosity.

    Supposedly, once installed, these geothermal plants can operate for very long time periods – the hot water won’t run out for a million years?

    • SmarterThanYourAverageBear Says:

      The problem is in fracking – leads to earthquakes in many places and can pollute water tables.

  5. indy222 Says:

    If it’s to be a real climate energy solution, and not just a single card in a deck of 52, then we need to be able to cheaply drill to suitable rock in a wide variety of places not near faults or volcanoes or spreading zones (like Iceland). The rock porosity, bacteria fouling, and fact that after well used, the water temperature down there can be expected to degrade to some steady-state level, so that initial power figures are going to be on the optimistic side.

    I do like high-grade geothermal. It satisfies pretty well the two safety criteria for climate solutions – (1) leave the surface in as pristine and life-friendly a way as possible, and (2) take the Earth system back to our ecologically optimal state with minimal hysteresis.

    The real competitor I believe, is not fossil fuels, nor even land-hungry utility grade solar PV and wind, but molten salt thorium breeder reactors. China is in the lead there, after stealing our engineering designs while we sat around and fretted about the politics of John Q Public and Hollywood movies.

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