4 Comments

  1. This was a good podcast.

    A few weeks ago, I started my furnace in preparation for a long Winter. My furnace is old. It needed repairs. I thought perhaps it was getting to be time to replace it. I fixed it instead.

    I like to think ahead. I’ve seen old nuclear plants and old coal plants shut down. People applauded that these dirty old coal plants have shut down. These dirty old coal plants were low hanging fruit to be plucked in the battle for climate change. The less easily picked fruit will be next. This includes the larger coal plants and the internal combustion engines. It will even include the gas turbines now used for reliable electricity. The thought occurred to me that it will also include the thousands (millions) of natural gas furnaces that will need to be replaced with zero emission sources of heat. How will it be done? Geothermal heat pumps seems a likely option. What kind of electrical energy will it take to provide for all those compressors? Where I live, air conditioning is not such a big load. I turned it on once last Summer to ensure it still worked. The vast electrical sources needed for air conditioning are not necessary where I live. However, geothermal heat pumps will require those sources. The power needs to be there so we don’t freeze. I think the sources for those heat pumps will be new nuclear plants.

    As was mentioned in the podcast, those new electric cars and bicycles are going to have to be charged. This is a lot of energy.

    It’s a good thing the government rules are changing as you discussed. We should be building those nukes now.

  2. Eino,
    If you like geothermal heat pumps, I think you’re going to love this idea.
    The idea is: why look for active geyser basins nearby when all you need
    is hot, dry heat stored in crystalline basement rock?

    Stephanie Hanes of Christian Science Monitor filed this report on a
    geologic research project at Cornell University in Ithaca New York.
    The project uses deep borehole technology to create new geothermal
    heat sources.

    Source: Christian Science Monitor (28 Oct 2022)
    Article: Geothermal 2.0: Why Cornell University put a 2-mile hole in the Earth
    URL: https://www.csmonitor.com/Environment/2022/1028/Geothermal-2.0-Why-Cornell-University-put-a-2-mile-hole-in-the-Earth

    This is a brilliant idea for its creativity – to create a new geothermal
    source, don’t search for an existing geyser basin; instead, drill an
    input/output pair of deep boreholes into hot, dry crystalline basement
    rock, inject salt water into the input borehole and draw steam from the
    output borehole. Feed the water back into the rock by condensing the
    steam and injecting it into the rock via the input borehole.

    And for scalability – to convert more thermal energy to mechanical
    & electrical, just drill more output boreholes into the same rock.

    Now don’t get me wrong, I’m not anti nuclear in the least,
    but I’m pro science to the max. And if you need more electrical
    power to drive heat pumps, recharge EV batteries, etc., then
    depending on your neighborhood’s proximity to stable grids,
    go with local nukes (MMR or SMR) or big nukes elsewhere on
    the stable grid. Without nukes we won’t get stable grids, right?

    What’s not to like about that?

    BTW the Cornell geothermal project is still on the drawing boards
    so I think we will be seeing nukes before the geothermal stuff
    makes its appearance.

  3. Where it works, it sounds great. I do not believe your article mentioned it, but I’ve read that the heat from the Earth is actually from radioactive decay. So, like solar and wind, it is second hand nuclear power.

    It’s time may be upon us. Lessons learned from fracking have enhanced the possibility of geothermal power. Even if the steam is very wet steam, the fuel is free after the capital cost has been put in. Think what it can do for district heating.

    https://austonia.com/austin-frack-king-geothermal

    I believe like wind, solar and hydro it cannot work everywhere for power production.

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