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Geothermal is getting closer to the big time. Last week, Fervo Energy — arguably the country’s leading enhanced geothermal company — announced that its Utah demonstration project had achieved record production capacity. The new approach termed “enhanced geothermal,” which borrows drilling techniques and expertise from the oil and gas industry, seems poised to become a big player on America’s clean, 24/7 power grid of the future.
Why is geothermal so hot? How soon could it appear on the grid — and why does it have advantages that other zero-carbon technologies don’t? On this week’s episode of Shift Key, Rob and Jesse speak with a practitioner and an expert in the world of enhanced geothermal. Sarah Jewett is the vice president of strategy at Fervo Energy, which she joined after several years in the oil and gas industry. Wilson Ricks is a doctoral student of mechanical and aerospace engineering at Princeton University, where he studies macro-energy systems modeling. Shift Key is hosted by Robinson Meyer, the founding executive editor of Heatmap, and Jesse Jenkins, a professor of energy systems engineering at Princeton University.
Subscribe to “Shift Key” and find this episode on Apple Podcasts, Spotify, Amazon, or wherever you get your podcasts.
You can also add the show’s RSS feed to your podcast app to follow us directly.
Here is an excerpt from our conversation:
Robinson Meyer: I just wanted to hit a different note here, which is, Sarah, you’ve alluded a few times to your past in the oil and gas industry. I think this is true across Fervo, is that of course, the technologies we’re discussing here are fracking derived. What has your background in the oil and gas industry and hydrocarbons taught you that you think about at Fervo now, and developing geothermal as a resource?
Sarah Jewett: There are so many things. I mean, I’m thinking about my time in the oil and gas industry daily. And you’re exactly right, I think today about 60% of Fervo’s employees come from the oil and gas industry. And because we are only just about to start construction on our first power facility, the percentage of contractors and field workers from the oil and gas industry is much higher than 60%.
Jesse Jenkins: Right, you can’t go and hire a bunch of people with geothermal experience when there is no large-scale geothermal industry to pull from.
Jewett: That’s right. That’s right. And so the oil and gas industry, I think, has taught us, so many different types of things. I mean, we can’t really exist without thinking about the history of the oil and gas industry — even, you know, Wilson and I are sort of comparing our learning rates to learning rates observed in various different oil and gas basins by different operators, so you can see a lot of prior technological pathways.
I mean, first off, we’re just using off the shelf technology that has been proven and tested in the oil and gas industry over the last 25 years, which has been, really, the reason why geothermal is able to have this big new unlock, because we’re using all of this off the shelf technology that now exists. It’s not like the early 2000s, where there was a single bit we could have tried. Now there are a ton of different bits that are available to us that we can try and say, how is this working? How is this working? How’s this working?
So I think, from a technological perspective, it’s helpful. And then from just an industry that has set a solid example it’s been really helpful, and that can be leveraged in a number of different ways. Learning rates, for example; how to set up supply chains in remote areas, for example; how to engage with and interact with communities. I think we’ve seen examples of oil and gas doing that well and doing it poorly. And I’ve gotten to observe firsthand the oil and gas industry doing it well and doing it poorly.
And so I’ve gotten to learn a lot about how we need to treat those around us, explain to them what it is that we’re doing, how open we need to be. And I think that has been immensely helpful as we’ve crafted the role that we’re going to play in these communities at large.
Wilson Ricks: I think it’s also interesting to talk about the connection to the oil and gas industry from the perspective of the political economy of the energy transition, specifically because you hear policymakers talk all the time about retraining workers from these legacy industries that, if we’re serious about decarbonizing, will unavoidably have to contract — and, you know, getting those people involved in clean energy, in these new industries.
And often that’s taking drillers and retraining some kind of very different job — or coal miners — into battery manufacturers. This is almost exactly one to one. Like Sarah said, there’s additional expertise and experience that you need to get really good at doing this in the geothermal context. But for the most part, you are taking the exact same skills and just reapplying them, and so it allows for both a potentially very smooth transition of workforces, and also it allows for scale-up of enhanced geothermal to proceed much more smoothly than it potentially would if you had to kind of train an entire workforce from scratch to just do this.
This episode of Shift Key is sponsored by …
Watershed’s climate data engine helps companies measure and reduce their emissions, turning the data they already have into an audit-ready carbon footprint backed by the latest climate science. Get the sustainability data you need in weeks, not months. Learn more at watershed.com.
As a global leader in PV and ESS solutions, Sungrow invests heavily in research and development, constantly pushing the boundaries of solar and battery inverter technology. Discover why Sungrow is the essential component of the clean energy transition by visiting sungrowpower.com.
Antenna Group helps you connect with customers, policymakers, investors, and strategic partners to influence markets and accelerate adoption. Visit antennagroup.com to learn more.
Music for Shift Key is by Adam Kromelow.
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It’s either reassure investors now or reassure voters later.
Investor-owned utilities are a funny type of company. On the one hand, they answer to their shareholders, who expect growing returns and steady dividends. But those returns are the outcome of an explicitly political process — negotiations with state regulators who approve the utilities’ requests to raise rates and to make investments, on which utilities earn a rate of return that also must be approved by regulators.
Utilities have been requesting a lot of rate increases — some $31 billion in 2025, according to the energy policy group PowerLines, more than double the amount requested the year before. At the same time, those rate increases have helped push electricity prices up over 6% in the last year, while overall prices rose just 2.4%.
Unsurprisingly, people have noticed, and unsurprisingly, politicians have responded. (After all, voters are most likely to blame electric utilities and state governments for rising electricity prices, Heatmap polling has found.) Democrat Mikie Sherrill, for instance, won the New Jersey governorship on the back of her proposal to freeze rates in the state, which has seen some of the country’s largest rate increases.
This puts utilities in an awkward position. They need to boast about earnings growth to their shareholders while also convincing Wall Street that they can avoid becoming punching bags in state capitols.
Make no mistake, the past year has been good for these companies and their shareholders. Utilities in the S&P 500 outperformed the market as a whole, and had largely good news to tell investors in the past few weeks as they reported their fourth quarter and full-year earnings. Still, many utility executives spent quite a bit of time on their most recent earnings calls talking about how committed they are to affordability.
When Exelon — which owns several utilities in PJM Interconnection, the country’s largest grid and ground zero for upset over the influx data centers and rising rates — trumpeted its growing rate base, CEO Calvin Butler argued that this “steady performance is a direct result of a continued focus on affordability.”
But, a Wells Fargo analyst cautioned, there is a growing number of “affordability things out there,” as they put it, “whether you are looking at Maryland, New Jersey, Pennsylvania, Delaware.” To name just one, Pennsylvania Governor Josh Shapiro said in a speech earlier this month that investor-owned utilities “make billions of dollars every year … with too little public accountability or transparency.” Pennsylvania’s Exelon-owned utility, PECO, won approval at the end of 2024 to hike rates by 10%.
When asked specifically about its regulatory strategy in Pennsylvania and when it intended to file a new rate case, Butler said that, “with affordability front and center in all of our jurisdictions, we lean into that first,” but cautioned that “we also recognize that we have to maintain a reliable and resilient grid.” In other words, Exelon knows that it’s under the microscope from the public.
Butler went on to neatly lay out the dilemma for utilities: “Everything centers on affordability and maintaining a reliable system,” he said. Or to put it slightly differently: Rate increases are justified by bolstering reliability, but they’re often opposed by the public because of how they impact affordability.
Of the large investor-owned utilities, it was probably Duke Energy, which owns electrical utilities in the Carolinas, Florida, Kentucky, Indiana, and Ohio, that had to most carefully navigate the politics of higher rates, assuring Wall Street over and over how committed it was to affordability. “We will never waver on our commitment to value and affordability,” Duke chief executive Harry Sideris said on the company’s February 10 earnings call.
In November, Duke requested a $1.7 billion revenue increase over the course of 2027 and 2028 for two North Carolina utilities, Duke Energy Carolinas and Duke Energy Progress — a 15% hike. The typical residential customer Duke Energy Carolinas customer would see $17.22 added onto their monthly bill in 2027, while Duke Energy Progress ratepayers would be responsible for $23.11 more, with smaller increases in 2028.
These rate cases come “amid acute affordability scrutiny, making regulatory outcomes the decisive variable for the earnings trajectory,” Julien Dumoulin-Smith, an analyst at Jefferies, wrote in a note to clients. In other words, in order to continue to grow earnings, Duke needs to convince regulators and a skeptical public that the rate increases are necessary.
“Our customers remain our top priority, and we will never waver on our commitment to value and affordability,” Sideris told investors. “We continue to challenge ourselves to find new ways to deliver affordable energy for our customers.”
All in all, “affordability” and “affordable” came up 15 times on the call. A year earlier, they came up just three times.
When asked by a Jefferies analyst about how Duke could hit its forecasted earnings growth through 2029, Sideris zeroed in on the regulatory side: “We are very confident in our regulatory outcomes,” he said.
At the same time, Duke told investors that it planned to increase its five-year capital spending plan to $103 billion — “the largest fully regulated capital plan in the industry,” Sideris said.
As far as utilities are concerned, with their multiyear planning and spending cycles, we are only at the beginning of the affordability story.
“The 2026 utility narrative is shifting from ‘capex growth at all costs’ to ‘capex growth with a customer permission slip,’” Dumoulin-Smith wrote in a separate note on Thursday. “We believe it is no longer enough for utilities to say they care about affordability; regulators and investors are demanding proof of proactive behavior.”
If they can’t come up with answers that satisfy their investors, ultimately they’ll have to answer to the voters. Last fall, two Republican utility regulators in Georgia lost their reelection bids by huge margins thanks in part to a backlash over years of rate increases they’d approved.
“Especially as the November 2026 elections approach, utilities that fail to demonstrate concrete mitigants face political and reputational risk and may warrant a credibility discount in valuations, in our view,” Dumoulin wrote.
At the same time, utilities are dealing with increased demand for electricity, which almost necessarily means making more investments to better serve that new load, which can in the short turn translate to higher prices. While large technology companies and the White House are making public commitments to shield existing customers from higher costs, utility rates are determined in rate cases, not in press releases.
“As the issue of rising utility bills has become a greater economic and political concern, investors are paying attention,” Charles Hua, the founder and executive director of PowerLines, told me. “Rising utility bills are impacting the investor landscape just as they have reshaped the political landscape.”
Plus more of the week’s top fights in data centers and clean energy.
1. Osage County, Kansas – A wind project years in the making is dead — finally.
2. Franklin County, Missouri – Hundreds of Franklin County residents showed up to a public meeting this week to hear about a $16 billion data center proposed in Pacific, Missouri, only for the city’s planning commission to announce that the issue had been tabled because the developer still hadn’t finalized its funding agreement.
3. Hood County, Texas – Officials in this Texas County voted for the second time this month to reject a moratorium on data centers, citing the risk of litigation.
4. Nantucket County, Massachusetts – On the bright side, one of the nation’s most beleaguered wind projects appears ready to be completed any day now.
Talking with Climate Power senior advisor Jesse Lee.
For this week's Q&A I hopped on the phone with Jesse Lee, a senior advisor at the strategic communications organization Climate Power. Last week, his team released new polling showing that while voters oppose the construction of data centers powered by fossil fuels by a 16-point margin, that flips to a 25-point margin of support when the hypothetical data centers are powered by renewable energy sources instead.
I was eager to speak with Lee because of Heatmap’s own polling on this issue, as well as President Trump’s State of the Union this week, in which he pitched Americans on his negotiations with tech companies to provide their own power for data centers. Our conversation has been lightly edited for length and clarity.
What does your research and polling show when it comes to the tension between data centers, renewable energy development, and affordability?
The huge spike in utility bills under Trump has shaken up how people perceive clean energy and data centers. But it’s gone in two separate directions. They see data centers as a cause of high utility prices, one that’s either already taken effect or is coming to town when a new data center is being built. At the same time, we’ve seen rising support for clean energy.
As we’ve seen in our own polling, nobody is coming out looking golden with the public amidst these utility bill hikes — not Republicans, not Democrats, and certainly not oil and gas executives or data center developers. But clean energy comes out positive; it’s viewed as part of the solution here. And we’ve seen that even in recent MAGA polls — Kellyanne Conway had one; Fabrizio, Lee & Associates had one; and both showed positive support for large-scale solar even among Republicans and MAGA voters. And it’s way high once it’s established that they’d be built here in America.
A year or two ago, if you went to a town hall about a new potential solar project along the highway, it was fertile ground for astroturf folks to come in and spread flies around. There wasn’t much on the other side — maybe there was some talk about local jobs, but unemployment was really low, so it didn’t feel super salient. Now there’s an energy affordability crisis; utility bills had been stable for 20 years, but suddenly they’re not. And I think if you go to the town hall and there’s one person spewing political talking points that they've been fed, and then there’s somebody who says, “Hey, man, my utility bills are out of control, and we have to do something about it,” that’s the person who’s going to win out.
The polling you’ve released shows that 52% of people oppose data center construction altogether, but that there’s more limited local awareness: Only 45% have heard about data center construction in their own communities. What’s happening here?
There’s been a fair amount of coverage of [data center construction] in the press, but it’s definitely been playing catch-up with the electric energy the story has on social media. I think many in the press are not even aware of the fiasco in Memphis over Elon Musk’s natural gas plant. But people have seen the visuals. I mean, imagine a little farmhouse that somebody bought, and there’s a giant, 5-mile-long building full of computers next to it. It’s got an almost dystopian feel to it. And then you hear that the building is using more electricity than New York City.
The big takeaway of the poll for me is that coal and natural gas are an anchor on any data center project, and reinforce the worst fears about it. What you see is that when you attach clean energy [to a data center project], it actually brings them above the majority of support. It’s not just paranoia: We are seeing the effects on utility rates and on air pollution — there was a big study just two days ago on the effects of air pollution from data centers. This is something that people in rural, urban, or suburban communities are hearing about.
Do you see a difference in your polling between natural gas-powered and coal-powered data centers? In our own research, coal is incredibly unpopular, but voters seem more positive about natural gas. I wonder if that narrows the gap.
I think if you polled them individually, you would see some distinction there. But again, things like the Elon Musk fiasco in Memphis have circulated, and people are aware of the sheer volume of power being demanded. Coal is about the dirtiest possible way you can do it. But if it’s natural gas, and it’s next door all the time just to power these computers — that’s not going to be welcome to people.
I'm sure if you disentangle it, you’d see some distinction, but I also think it might not be that much. I’ll put it this way: If you look at the default opposition to data centers coming to town, it’s not actually that different from just the coal and gas numbers. Coal and gas reinforce the default opposition. The big difference is when you have clean energy — that bumps it up a lot. But if you say, “It’s a data center, but what if it were powered by natural gas?” I don’t think that would get anybody excited or change their opinion in a positive way.
Transparency with local communities is key when it comes to questions of renewable buildout, affordability, and powering data centers. What is the message you want to leave people with about Climate Power’s research in this area?
Contrary to this dystopian vision of power, people do have control over their own destinies here. If people speak out and demand that data centers be powered by clean energy, they can get those data centers to commit to it. In the end, there’s going to be a squeeze, and something is going to have to give in terms of Trump having his foot on the back of clean energy — I think something will give.
Demand transparency in terms of what kind of pollution to expect. Demand transparency in terms of what kind of power there’s going to be, and if it’s not going to be clean energy, people are understandably going to oppose it and make their voices heard.