You’re out of free articles.
Log in
To continue reading, log in to your account.
Create a Free Account
To unlock more free articles, please create a free account.
Sign In or Create an Account.
By continuing, you agree to the Terms of Service and acknowledge our Privacy Policy
Welcome to Heatmap
Thank you for registering with Heatmap. Climate change is one of the greatest challenges of our lives, a force reshaping our economy, our politics, and our culture. We hope to be your trusted, friendly, and insightful guide to that transformation. Please enjoy your free articles. You can check your profile here .
subscribe to get Unlimited access
Offer for a Heatmap News Unlimited Access subscription; please note that your subscription will renew automatically unless you cancel prior to renewal. Cancellation takes effect at the end of your current billing period. We will let you know in advance of any price changes. Taxes may apply. Offer terms are subject to change.
Subscribe to get unlimited Access
Hey, you are out of free articles but you are only a few clicks away from full access. Subscribe below and take advantage of our introductory offer.
subscribe to get Unlimited access
Offer for a Heatmap News Unlimited Access subscription; please note that your subscription will renew automatically unless you cancel prior to renewal. Cancellation takes effect at the end of your current billing period. We will let you know in advance of any price changes. Taxes may apply. Offer terms are subject to change.
Create Your Account
Please Enter Your Password
Forgot your password?
Please enter the email address you use for your account so we can send you a link to reset your password:
Why geothermal has been a non-starter there for decades.
In 1881, King David Kalakaua of Hawaii and his entourage paid a late evening visit to Thomas Edison in New York. The king was unsure about electricity — he didn’t think the technology was reliable enough to light up Honolulu’s streets just yet — but after marveling at a chandelier buzzing with electric light, the group started bantering about how Hawaii could generate power. What about putting boilers atop a volcano? There was enough energy up there, a companion to the king mused, that it could illuminate the entire United States. He appeared to be joking, but Edison took the notion seriously. Nice idea, he told his visitors, but an undersea cable carrying power to the mainland would be far too expensive.
Honolulu got its new streetlights a few months later — powered, in the end, by a hydroelectric dam. The volcano thought would wait a century longer.
In the 1970s, geologists began drilling into the eastern rift of the Big Island’s Kilauea volcano, resulting, in 1993, in Hawaii’s first geothermal power plant, which is today called the Puna Geothermal Venture, or PGV. The 38-megawatt facility straddles the most active rift of Hawaii’s most active volcano and is, to this day, the state’s only geothermal plant, supplying just 3% of the islands’ energy. That status quo puzzles geothermal advocates elsewhere. The obvious comparison is to a volcanic sibling like Iceland, where the Earth’s radiant heat supplies 25% of the country’s consumer electricity needs and more than 70% of its overall energy.
“It’s been talked about for ages that at some point, Hawaii needs to have a reset on geothermal,” Mark Glick, Hawaii’s Chief Energy Officer, told me. “That time is now.” So far, that reset involves the governor’s office directing discretionary COVID relief funds with the aim of getting an essentially moribund industry off the ground. Five million dollars will go toward a drilling program to explore the geology of promising areas of heat, hopefully with results that encourage potential developers to make their own, bigger investments. Site selection is underway, with Maui and the Big Island at the top of the list, and Glick said local outreach will begin in the next few months.
That the vast underground heat resources of a place like Maui are only now getting even basic attention is “mind-boggling,” Glick said. But it’s also a reflection of decades of turmoil over all things geothermal in the state — clashes with neighbors, toxic incidents, failed dreams of grandiose infrastructure. That has to change, he added, if the state is serious about ditching its dirtiest forms of power generation quickly. Hawaii has committed to reaching a 100% clean energy portfolio by 2045, but was still producing as much as 80% of its electricity from burning petroleum by last year.
Like other states endowed with abundant heat, Hawaii was previously inspired to consider geothermal energy during the 1970s oil crisis. The state was dependent on imported fuel, and the regularly lava-spewing Kilauea, in particular, looked like “a no-brainer” for geothermal development, explains Roland Horne, director of the Stanford Geothermal Program and a noted historian of the industry.
Hawaii’s problem is that, in addition to being an island chain, it’s also a chain of separate electric grids. With no power lines connecting the Big Island — home to 14% percent of the state’s population — to any others, Kilauea’s energy was marooned. Initially, the state imagined unifying its disparate grids in parallel with geothermal development. But Edison, it turns out, was right about undersea cables, even relatively short ones. After a decade of planning and testing that included laying prototype wires across the 6,100-feet deep, 30-mile wide ‘Alenuihaha Channel between the Big Island and Maui found that such a project was technically feasible but would be far too expensive.
Meanwhile, oil prices fell, and so did interest in hunting for hot rock elsewhere. Although a statewide survey that began in the 1970s found most of the islands could harbor geothermal resources — even older, geologically colder islands like Oahu and even Kauai — nobody followed up. “It led to almost nothing for three decades,” said Nicole Lautze, a geologist at the University of Hawaii-Manoa who is overseeing the state’s current exploratory projects. Instead, the state remained dependent on imported oil.
Other problems were more island-specific. Drilling into an active volcano is fairly unusual for geothermal prospectors and presents unique challenges, given the proximity of lava and abundance of toxic gasses. The work on Kilauea was controversial from the start, with nearby residents and Native Hawaiian spiritual practitioners calling the project not just unsafe but sacrilegious. A release of hydrogen sulfide during construction in 1991 only added to the controversy.
Toxic emissions, including sulfur, from geothermal facilities are generally minuscule compared with fossil fuel plants—and part of the everyday dangers of living on a volcanic slope, Horne told me. “They were coming out of the ground long before Puna was ever built,” he said. But PGV’s reputation as a danger to the community was hard to shake. When geothermal has made headlines in the state over the years since, the story has generally been PGV’s uneasy relationship with the volcano — most notably during Kilauea’s 2018 eruption, during which the plant was totally surrounded by lava flows. Neighbors remained fiercely opposed to the plant when it reopened two years later.
In 2014, when Lautze was tapped for a new survey of that state’s geothermal resources, the word “geothermal” was so taboo that she was reluctant to tell anyone locally her line of work. But she had funding from the U.S. Department of Energy, thanks to the federal government’s resurgent interest in geothermal as a source of clean, firm energy. Popular perception in Hawaii held that the Earth’s heat could only be tapped on the Big Island, where magma was breaching the surface, but Lautze was intrigued by the possibility of finding resources on islands that are less geologically volatile and home to more people. She set about developing new simulations for subsurface heat across the state, followed by on-the-ground experiments.
On islands like Lanai and Maui, Lautze said her team received a warmer welcome than expected. Certain benefits of geothermal had become much more clear amidst the state’s rush to adopt renewable energy — among them, that geothermal power would take a fraction of the land required to produce the same electricity from wind turbines or solar panels, in addition to providing continuous power, regardless of the weather. “Hawaii is realizing that they’re not going to get to 100 percent renewable from solar and wind alone,” said Lautze. Plus, she added, “the cost of energy is going up and up and up.”
The next step toward tapping that heat is what’s known as “slim hole” drilling, using bits less than 7 inches wide to descend more than a kilometer down. Even promising hotspots can be duds, and developers are often hesitant even in well-mapped places, which Hawaii isn’t. Before the state tries to sell geothermal companies on the idea of coming to Hawaii, officials want to be sure of what they’re selling. “There’s an absolute dearth of information on the volcanically older islands,” Lautze said.
Mike Kaleikini, head of Hawaii affairs for Ormat, which owns PGV, told me he’s been heartened to see the state turning its attention to basic research. Developers could very well get excited about places like Maui, he said, with some initial exploration already done and if they feel they can navigate permitting and potential concerns from the public. “Hawaii is not the easiest place to do business,” he added.
Among the better prospects for new development is on Big Island land owned by the Department of Hawaiian Home Lands, an agency that works to redistribute homes and land to Native Hawaiians. Located on the more docile slopes of Mauna Kea, the project’s backers say it could both power DHHL’s housing developments and generate royalties that help finance more home building.
Whatever heat developers strike there will remain marooned on the Big Island, at least for now. Channeling the dream of near-endless volcanic energy, Glick’s office proposed tying the Big Island’s geothermal production to a regional hydrogen hub so that the energy could be shipped offshore, but the DOE ultimately passed on funding the plan. Lautze still dreams of wires strung across the unruly Hawaiian channels. People still talk about the idea, she noted, even if it elicits smirks and eyerolls from people who lived through its past failures. The state is still a far cry from achieving the king’s dream. But the only way to get there is to start drilling.
Log in
To continue reading, log in to your account.
Create a Free Account
To unlock more free articles, please create a free account.
On power plant emissions, Fervo, and a UK nuclear plant
Current conditions: A week into Atlantic hurricane season, development in the basin looks “unfavorable through June” • Canadian wildfires have already burned more land than the annual average, at over 3.1 million hectares so far• Rescue efforts resumed Wednesday in the search for a school bus swept away by flash floods in the Eastern Cape province of South Africa.
EPA
The Environmental Protection Agency plans to announce on Wednesday the rollback of two major Biden-era power plant regulations, administration insiders told Bloomberg and Politico. The EPA will reportedly argue that the prior administration’s rules curbing carbon dioxide emissions at coal and gas plants were misplaced because the emissions “do not contribute significantly to dangerous pollution,” per The Guardian, despite research showing that the U.S. power sector has contributed 5% of all planet-warming pollution since 1990. The government will also reportedly argue that the carbon capture technology proposed by the prior administration to curb CO2 emissions at power plants is unproven and costly.
Similarly, the administration plans to soften limits on mercury emissions, which are released by burning coal, arguing that the Biden administration “improperly targeted coal-fire power plants” when it strengthened existing regulations in 2024. Per a document reviewed by The New York Times, the EPA’s proposal will “loosen emissions limits for toxic substances such as lead, nickel, and arsenic by 67%,” and for mercury at some coal power plants by as much as 70%. “Reversing these protections will take lives, drive up costs, and worsen the climate crisis,” Climate Action Campaign Director Margie Alt said in a statement. “Instead of protecting American families, [President] Trump and [EPA Administrator Lee] Zeldin are turning their backs on science and the public to side with big polluters.”
Fervo Energy announced Wednesday morning that it has secured $206 million in financing for its 400-megawatt Cape Station geothermal project in southwest Utah. The bulk of the new funding, $100 million, comes from the Breakthrough Energy Catalyst program.
Fervo’s announcement follows on the heels of the company’s Tuesday announcement that it had drilled its hottest and deepest well yet — at 15,000 feet and 500 degrees Fahrenheit — in just 16 days. As my colleague Katie Brigham reports, Fervo’s progress represents “an all too rare phenomenon: A first-of-a-kind clean energy project that has remained on track to hit its deadlines while securing the trust of institutional investors, who are often wary of betting on novel infrastructure projects.” Read her full report on the clean energy startup’s news here.
The United Kingdom said Tuesday that it will move forward with plans to construct a $19 billion nuclear power station in southwest England. Sizewell C, planned for coastal Suffolk, is expected to create 10,000 jobs and power 6 million homes, The New York Times reports. Sizewell would be only the second nuclear power plant to be built in the UK in over two decades; the country generates approximately 14% of its total electricity supply through nuclear energy. Critics, however, have pointed unfavorably to the other nuclear plant under construction in the UK, Hinkley Point C, which has experienced multiple delays and escalating costs throughout its development. “For those who have followed Sizewell’s progress over the years, there was a glaring omission in the announcement,” one columnist wrote for The Guardian. “What will consumers pay for Sizewell’s electricity? Will it still be substantially cheaper in real terms than the juice that will be generated at Hinkley Point C in Somerset?” The UK additionally announced this week that it has chosen Rolls-Royce as the “preferred bidder” to build the country’s first three small modular nuclear reactors.
The European Union on Tuesday proposed a ban on transactions with Nord Stream 1 and 2 as part of a new package of sanctions aimed at Russia, Bloomberg reports. “We want peace for Ukraine,” the president of the European Commission, Ursula von der Leyen, said at a news conference in Brussels. “Therefore, we are ramping up pressure on Russia, because strength is the only language that Russia will understand.” The package would also lower the price cap on Russian oil to $45 a barrel, down from $60 a barrel, von der Leyen said, as well as crack down on Moscow’s “shadow fleet” of vessels used to transport sanctioned products like crude oil. The EU’s 27 member states need to unanimously agree to the package for it to be adopted; their next meeting is on June 23.
The world’s oceans hit their second-highest temperature ever in May, according to the European Union’s Earth observation program Copernicus. The average sea surface temperature for the month was 20.79 degrees Celsius, just 0.14 degrees below May 2024’s record. Last year’s marine heat had been partly driven by El Niño in the Pacific, so the fact that the oceans remain warm in 2025 is alarming, Copernicus senior scientist Julien Nicolas told the Financial Times. “As sea surface temperatures rise, the ocean’s capacity to absorb carbon diminishes, potentially accelerating the build-up of greenhouse gases in the atmosphere and intensifying future climate warming,” he said. In some areas around the UK and Ireland, the sea surface temperature is as high as 4 degrees Celsius above average.
Image: Todd Cravens/Unsplash
The Pacific Island nation of Tonga is poised to become the first country to recognize whales as legal persons — including by appointing them (human) representatives in court. “The time has come to recognize whales not merely as resources but as sentient beings with inherent rights,” Tongan Princess Angelika Lātūfuipeka Tukuʻaho said in comments delivered ahead of the U.N. Ocean Conference in Nice, France.
Microsoft, Amazon, Google, and the rest only have so much political capital to spend.
When Donald Trump first became a serious Presidential candidate in 2015, many big tech leaders sounded the alarm. When the U.S. threatened to exit the Paris Agreement for the first time, companies including Google, Microsoft, Apple, and Facebook (now Meta) took out full page ads in The New York Times and The Wall Street Journal urging Trump to stay in. He didn’t — and Elon Musk, in particular, was incensed.
But by the time specific climate legislation — namely the Inflation Reduction Act — was up for debate in 2022, these companies had largely clammed up. When Trump exited Paris once more, the response was markedly muted.
Now that the IRA’s tax credits face clear and present threats, this same story is playing out again. As the Senate makes its changes to the House’s proposed budget bill, tech giants such as Microsoft, Google, Meta, and Amazon are keeping quiet, at least publicly, about their lobbying efforts. Most did not respond to my request for an interview or a statement clarifying their position, except to say they had “nothing to share on this topic,” as Microsoft did.
That’s not to say they have no opinion about the fate of clean energy tax credits. Microsoft, Google, Meta, and Amazon have all voluntarily set ambitious net-zero emissions targets that they’re struggling to meet, largely due to booming data center electricity demand. They’re some of the biggest buyers of solar and wind energy, and are investing heavily in nuclear and geothermal. (On Wednesday morning, Pennsylvania’s Talen Energy announced an expanded power purchase agreement with Amazon, for nearly 2 gigawatts of power through 2042.) All of these energy sources are a whole lot more accessible with tax credits than without.
There’s little doubt the tech companies would prefer an abundant supply of cheap, clean energy. Exactly how much they’re willing to fight for it is the real question.
The answer may come down to priorities. “It’s hard to overstate how much this race for AI has just completely changed the business models and the way that these big tech companies are thinking about investment,” Jeff Navin, co-founder of the climate-focused government affairs firm Boundary Stone Partners, told me. “While they’re obviously going to be impacted by the price of energy, I think they’re even more interested and concerned about how quickly they can get energy built so that they can build these data centers.”
The tech industry has shown much more reluctance to stand up to Trump, period, this time around. As the president has moved from a political outsider to the central figure in the Republican party, hyperscalers have increasingly curried his favor as they advocate against actions that could pose an existential risk to their business — think tighter regulations on the tech sector or AI, or tariffs on key supplies made in Asia.
As Navin put it to me, “When you have a president who has very strong opinions on wind turbines and randomly throws companies’ names in tweets in the middle of the night, do you really want to stick your neck out and take on something that the president views as unpopular if you’ve got other business in front of him that could be more impactful for your bottom line?”
It is undeniably true that the AI-driven data center boom is pushing these companies to look for new sources of clean power. Last week Meta signed a major nuclear deal with Constellation Energy. Microsoft is also partnering with Constellation to reopen Three Mile Island, while Google and Amazon have both announced investments in companies developing small modular reactors. Meta, Google, and Microsoft are also investing in next-generation geothermal energy startups.
But while the companies are eager to tout these partnerships, Navin suspects most of their energy lobbying is now being directed towards efforts such as permitting reform and building out transmission infrastructure. Publicly available lobbying records confirm that these are indeed focus areas, as they’re critical to bringing data centers online quickly, regardless of how they’re powered and whether that power is subsidized. “They’re not going to stop construction on an energy project that has access to electricity just because that electricity is marginally more expensive,” Navin told me. “There’s just too much at stake.”
Tech companies have lobbied on numerous budget, tax, sustainability, and clean energy issues thus far this year. Amazon’s lobbying report is the only one to specifically call out efforts on “renewable energy tax credits,” while Meta cites “renewable energy policy” and Microsoft name-drops the IRA. But there’s no hard and fast standard for how companies describe the issues they’re lobbying on or what they’re looking to achieve. And perhaps most importantly, the reports don’t disclose how much money they allot to each issue, which would illuminate their priorities.
Lobbying can also happen indirectly, via industry groups such as the Clean Energy Buyers Association and the Data Center Coalition. Both have been vocal advocates for preserving the tax credits. The Wall Street Journal recently detailed a lobbying push by the latter — which counts Microsoft, Amazon, Meta, and Google among its most prominent members — that involved meetings with about 30 Republican senators and a letter to Senate Majority Leader John Thune.
DCC didn’t respond to my request for an interview. But CEBA CEO Rich Powell told me, “If we take away these incentives right now, just as we’re getting the rust off the gears and getting back into growth mode for the electricity economy, we’re really concerned about price spikes.”
The leader of another industry group, Advanced Energy United, shared Powell’s concern that passing the bill would mean higher electricity prices. Taking away clean energy incentives would ”fundamentally undercut the financing structure for — let’s be frank — the vast majority of projects in the interconnection queue today,” Harry Godfrey, the managing director of AEU, told me.
Being part of an industry association is by no means a guarantee of political alignment on every issue. Microsoft, Google, Meta, and Amazon are also members of the U.S. Chamber of Commerce — by far the largest lobbying group in the U.S. — which has a long history of opposing climate action and the IRA itself. Apple even left the Chamber in 2009 due to its climate policy stances.
But Powell and Godfrey implied that the tech giants' views are — or at least ought to be — in alignment with theirs. “Many of our members are lobbying independently. Many of them are lobbying alongside us. And then many of them are supporting CEBA to go and lobby on this,” Powell told me, though he wouldn’t reveal what actions any specific hyperscalers were taking.
Godfrey said that AEU’s positions are “certainly reflective of what large energy consumers, notably tech companies, have been working to pursue across a variety of technologies and with applicability to a couple of different types of credits.”
And yet hyperscalers may have already spent a good deal of their political capital fighting for a niche provision in the House’s version of the budget bill, which bans state-level AI regulation for a decade. That would make the AI boom infinitely easier for tech companies, who don’t want to deal with a patchwork of varying regulations, or really most regulations at all.
On top of everything else, big tech in particular is dealing with government-led anti-trust lawsuits, both at home and abroad. Google recently lost two major cases to the Department of Justice, related to its search and advertising business. A final decision is pending regarding the Federal Trade Commission’s antitrust lawsuit against Meta, regarding the company’s acquisition of Instagram and WhatsApp. Not to be outdone, Amazon will also be fighting an antitrust case brought by the FTC next year.
As these companies work to convince the public, politicians, and the courts that they’re not monopolistic rule-breakers, and that AI is a benevolent technology that the U.S. must develop before China, they certainly seem to be relinquishing the clean energy mantle they once sought to carry, at least rhetorically. We’ll know more once all these data centers come online. But if the present is any indication, speed, not green electrons, is the North Star.
Editor’s note: This story has been updated to reflect Amazon’s power purchase agreement with Talen Energy.
The new funding comes as tax credits for geothermal hang in the balance.
The good news is pouring in for the next-generation geothermal developer Fervo Energy. On Tuesday the company reported that it was able to drill its deepest and hottest geothermal well to date in a mere 16 days. Now on Wednesday, the company is announcing an additional $206 million in financing for its Cape Station project in Utah.
With this latest tranche of funding, the firm’s 500-megawatt development in rural Beaver County is on track to deliver 24/7 clean power to the grid beginning in 2026, reaching full operation in 2028. The development is shaping up to be an all-too-rare phenomenon: A first-of-a-kind clean energy project that has remained on track to hit its deadlines while securing the trust of institutional investors, who are often wary of betting on novel infrastructure projects.
The bulk of this latest financing comes from the Bill Gates-backed Breakthrough Energy Catalyst program, which provided $100 million in project-level equity funding. The energy and commodity trading company Mercuria provided $60 million in corporate loans, increasing its existing fixed-term loan from $40 million to $100 million. An additional $45.6 million in short-term debt financing came from XRL-ALC, an affiliate of X-Caliber Rural Capital, which provides loans to infrastructure projects in rural areas. That comes on top of a previous $100 million loan from the firm.
The plan is for Cape Station to deliver 100 megawatts of grid power in 2026, with the additional 400 megawatts by 2028. The facility has the necessary permitting to expand production to two gigawatts — twice the size of a standard nuclear reactor. And on Monday, the company announced that an independent report from the consulting firm DeGolyer & MacNaughton confirms that the project could expand further still — eventually supporting over 5 gigawatts of clean power at depths of up to 13,000 feet. The company’s latest drilling results, which reached 15,765 feet at 520 degrees Fahrenheit, could push the project’s potential power output even higher.
Traditional geothermal wells normally max out at around 10,000 feet, and must be built in locations where a lucky confluence of geological features come together: high temperatures, porous rock, and naturally occurring water or steam. But because Fervo can drill thousands of feet deeper, it’s able to access hot rocks in locations that weren’t previously suitable for geothermal development, pumping high-pressure water down into the wells to fracture rocks and thus create its own geothermal reservoirs.
The primary customer for Fervo’s Cape Station project is Southern California Edison, which signed a 320-megawatt power purchase agreement with the company last year, advertised as the largest geothermal PPA ever. Shell was also announced as a customer this year. Fervo is already providing 3.5 megawatts of power to Google via a pilot project in Nevada, which it’s seeking to expand, entering into a 115 megawatt PPA with NV Energy and the tech giant to further build out production at this location.
Fervo’s latest funding comes on top of last February’s $244 million Series D round led by Devon Energy, as well as an additional $255 million in corporate equity and debt financing that it announced last December. On top of investments from well known climate tech venture firms such as Breakthrough Energy Ventures and Galvanize Climate Solutions, the company has secured institutional investment from Liberty Mutual as well as public pension funds such as the California State Teachers’ Retirement System and the Canada Pension Plan Investment Board.
Fervo, like all clean energy startups, also stands to benefit greatly from the Inflation Reduction Act’s clean energy tax credits, which are now in jeopardy as President Trump’s One Big, Beautiful Bill works its way through the Senate. While Secretary of Energy Chris Wright has traditionally been a booster of geothermal energy and is advocating to keep tax incentives for the technology in place through 2031, the bill as it stands would essentially erase incentives for all geothermal projects that start construction more than 60 days after the bill’s passage.
Fervo broke ground on Cape Station in 2023, so that project will make the cut. For future Fervo developments, it’s much less clear. But for now, the company seems to be flush with cash and potential in a climate tech world awash in ill omens.