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Is geothermal energy a viable solution to electricity shortage?

Dec 07, 2023


Stored deep within the earth’s core, geothermal energy is a naturally occurring renewable resource receiving backing from big tech companies. The aim is to harness this energy to fill gaps in wind and solar power generation, providing a source of clean power without burning fossil fuels such as coal, gas, or oil.

Straight Arrow News contributor Peter Zeihan explains how geothermal energy works and why it might be a potential game-changer for meeting America’s electricity needs.

Excerpted from Peter’s Dec. 7 “Zeihan on Geopolitics” newsletter:

The Google-backed company, Fervo Energy, has launched two geothermal projects that use preexisting shale technology and infrastructure to generate electricity. Could this be a partial solution to the looming electricity shortage?

The pilot project in Vegas is too small for me to place any bets, but the next project in Utah aims to be on par with other large power plants. This technology allows us to tap into the Earth’s crust, detect and access hot zones where they might not typically be found, and develop a reliable and dispatchable energy source.

Again, don’t go counting those chickens until we hear back on whether this project was a success or not. In the meantime, we’ll appreciate this technology as a refreshing solution in light of a rather hefty need for power supply expansion.

Hey everybody, Peter Zeihan here coming to you from the Denver International Airport where I am waiting for my flight. It’s my last business trip of the year. So it’s kind of exciting. Anyway, it’s early December. And the news is that in late November, a new project for geothermal launch near Vegas Am I launched I mean, began operations, not just starting drilling. It’s fertile energy. It’s backed by Google, we don’t have any data on what their cost point is, because you know, it’s Google and as a pilot project, but Google has been sufficiently excited about it to go ahead and launch another project in Utah. The one that’s in Vegas is only about three and a half megawatts and up for about 2600 homes. So very, very small scale, by really any powerplant standard. But the next one is going to be 400 megawatts, which puts it up there with some of the larger power plants in the world, assuming that it was spec. Geothermal is awesome, where it works, because you can tap a heat within the crust to generate steam and use the steam to generate electricity, it’s green, it doesn’t have any chemical issues. And one of the best things about geothermal is you can use it either for surge or for baseload, you just decide when you’re going to use it, which makes it a lot more reliable and dispatchable than say solar or wind would be because you know, the Earth is pretty much always hot. That’s part one. Part two, what makes this interesting is that it’s not a typical geothermal project. So normally, with geothermal, you’re tapping something like a geyser, or hot water or a hot spot that’s relatively close to the surface, usually within just a few 100 feet. But this is the first project that’s been attempted and so far successfully, that uses shale tech to go after a different sort of geology. So rather than letting the earth put something that’s up close to the surface, that only happens in a few places, it’s almost exclusively in the Rockies. And as you guys know, the Rockies are not exactly densely populated. So geothermal with the old style is only providing about point 4% of overall American electricity supply. But with the shale tech, you can drill down in this case, 7000 feet into a hot spot that is nowhere near the surface. And that means assuming this works and works at scale. That means we can do this everywhere, where there’s shale, where there’s not geologic activity, you’re not going to do this on the San Andreas Fault, obviously, let me do a better job of explaining that. The two things that make shale technology really appropriate for geothermal and you know why it works in general is number one, you’ve got really good acoustical detection, by using some version of sonar. And you can bounce sound waves off of different types of formations at different levels within the formation and map them out from the inside out. That’s how they know exactly where to go to the petroleum rich Stratta when they’re doing oil and gas production. And then second, drilling has advanced in courtesy of shale. So you go down and then laterally in order to access whatever the specific layer is, and you can don’t have to go in a straight line. So it’s like you can go up into like the fingers of a curved hand. So you apply this to geothermal. And really what you’re looking are for in Arabic zones, that are really, really hot, and you can pick that up with the acoustic coils. So by taking these technologies, you can go to the best, densest hottest material possible, in order to then run your liquid into it, which then captures the heat, which can then be used to generate electricity. That is potentially a game changer, one of the big problems the United States is going to be facing over the course of the next decade is a massive, massive shortage of electricity. Even if we don’t do the green transition, even if all we do is restore a lot of manufacturing, to deal with a post China world you’re talking about conservatively, expanding the power supply by 40% 50% would make me feel a lot better. That includes processing for things like aluminum and lithium and the rest. You know, that’s a lot of power. We haven’t had that kind of power in decades, that green transition would add problems on top of that. And so if we can take something like geothermal and existing technologies that are now off the shelf and apply them at scale, in all 50 states, now you’re talking about a very different sort of math, because these things can, in theory, come on line pretty quickly. So those of you who follow the shale sector know, it only takes six to 12 weeks to bring a shell Project Online. And most of that is involved in the drilling and fracking. Oh, that’s exactly the technology we would be applying to geothermal. So obviously, it’s not a complete plug and play electricity is different from generating oil or gas. But the the technology and the ways they can fusion are very promising. We’re just waiting from Google to find out what the numbers are to know if this is economically viable or not. And that’s the whole point of the Utah project. Okay, that’s it. Take care

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