What's going on with geothermal?

In this episode, Project InnerSpace founder and executive director Jamie Beard, who has been instrumental in influencing oil and gas personnel to move into the geothermal industry, discusses exciting recent developments in geothermal and the opportunities ahead.

(PDF transcript)

(Active transcript)

Text transcript:

David Roberts

Things are starting to come together for geothermal. Political awareness has seen an uptick. Investment is flowing in. Startups, many staffed by veterans of the oil and gas industry, are swarming to take advantage of existing geothermal opportunities and expand those opportunities. New technologies and techniques are reaching the demonstration phase.

It’s an exciting time.

At the center of it all is Jamie Beard, who for more than a decade now has served as a kind of pied piper luring people out of oil and gas and into geothermal. (Here’s her 2021 TED Talk.) A one-time energy and regulatory lawyer, Beard founded the Geothermal Entrepreneurship Organization, dedicated to educating and training oil and gas personnel to move into geothermal. (GEO recently helped launch the Texas Geothermal Institute to expand that work.)

She is also the founder and executive director of Project InnerSpace, a nonprofit dedicated to advancing the geothermal industry. It recently launched an initiative to build a Global Heat Flow Database, which would help map subsurface resources across the globe. It also plans to invest in new geothermal technology companies that are ready to launch first-of-a-kind demonstration projects.

Beard has been my go-to resource on geothermal for years, so I was thrilled to bring her on the pod to discuss the current state of the industry, the migration of personnel and expertise from oil and gas to geothermal, and the path to global scale for the industry.

All right then. Jamie Beard of Project InnerSpace. Welcome to Volts. Thank you so much for coming.

Jamie Beard

Oh, my gosh. David Roberts. Hello. It's nice to see you again.

David Roberts

Yeah, it's been a while since we talked. You know, when I was working on a piece on geothermal for Vox a few years ago, I don't know how many years ago, my family makes fun of me because everything pre pandemic is about five years ago. Yeah, I guess it was 2020. And my sense then around geothermal was that there was this sort of kind of a surge of interest, call it ten to 15 years ago, and a surge of investment. And then that kind of tailed off, kind of the air went out of that balloon a little bit lost steam.

There you go. That's the pun I was looking for. And then my sense was that as we were talking back in 2020, a bunch of strands trends were just starting to come together for a new big resurgence, a renaissance of geothermal. I want to talk about the future of geothermal, the immediate future, the near term future, the midterm future. But first, I would like to just start with a snapshot of, like, what is happening in the industry now? Is it still the case that only conventional geothermal wells are actually being dug and operating? What's the kind of snapshot of the industry?

Jamie Beard

Well, no, it's no longer just the case that conventional is being dug, which is really cool. And that's actually a difference between now and 2020. So when we talked back in the day, you're right to use renaissance, we were just about at the beginning of one, right? So it was like there's all this stuff that was very buzzy, but there wasn't really a whole lot in the ground. There were some teams that were kind of thinking about it, but nobody was really doing it yet. So there are some teams that have gotten out and done stuff in the last couple of years, and that means demonstrations, and that means that wells have been drilled, and that means that demonstrations and pilots have been done.

And that's also meant that the oil and gas industry has gotten increasingly excited and started investing. So the landscape has changed quite a bit in the last three years in terms of momentum and also investment dollars, which is really cool, I guess, to start with.

David Roberts

I should have done this at the very beginning, but I shouldn't assume that listeners read that piece on geothermal.

Jamie Beard

Well, everybody in the world has.

David Roberts

I would like to think so, but just in case there's a few out there who have it, I just want to make a very basic distinction. Geothermal to date, mostly, almost exclusively has been what's called hydrothermal, which is you go find places where there are natural riffs and reservoirs of thermal activity, and then you go down there and exploit that heat. So that's what geothermal has been from like the dawn of time up until about five minutes ago. You go find these areas where the heat already exists, that's conventional geothermal, and you stick a straw down and get the steam up and make electricity.

Then there is coming what's called advanced geothermal, whereas you go make your own reservoir, you dig down and you crack the rock to create basically an artificial or a human made fracture, which then the hot water comes, fills the cracks, then you stick a straw down, et cetera. You make your own reservoir. And then there are sort of beyond that, kind of like what you might call cutting edge. I don't know what the exact term is. Cutting edge technology research where people are trying to do things like closed loop geothermal, where instead of just having the heat be dispersed in this natural reservoir, you're just tubing water down, letting it heat up and tubing it back up.

Jamie Beard

These are very accurate terms.

David Roberts

I hope everybody's keeping up. And then there's wacky cutting edge drilling technology, like using lasers and plasma sound waves, plasma millimeter waves, god knows what else. That's the cutting edge. That's just like the landscape, just in case people don't know. So most of what's happened to date in the history of geothermal has been conventional geothermal. And as far as I know, in terms of commercial operating geothermal plants, they're still almost all conventional hydrothermal, are they not?

Jamie Beard

Yeah, that's right. There are a few commercial egs plants in the world, but they are very few. And the rest is the Iceland kind of geothermal, the geothermal that we see on the surface. So it's the traditional stuff, but even that there's not much of it in the world. Right?

David Roberts

Right.

Jamie Beard

It's still quite small, but anyway, yeah, so you caught everybody up to 2020 with your article. So everybody that's listening, go read David's article from 2020. It'll catch you up to then, and then we'll cover the last three years.

David Roberts

Now, right now what I want to know is, is