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On Trump’s clawed-back loans, California’s power surge, and ‘Coalie’

Current conditions: The monster snow storm headed eastward could dump more than a foot of snow on New York City this weekend • An extreme heat wave in Australia is driving temperatures past 104 degrees Fahrenheit • In northwest India, Jammu and Kashmir are bracing for up to 8 inches of snow.
Last month, Fervo Energy raised another $462 million in a Series E round to finance construction of the next-generation geothermal startup’s first major power plant. Pretty soon, retail investors will be able to get in on the hype. On Thursday, Axios reported that the company had filed confidential papers with the Securities and Exchange Commission in preparation for an initial public offering. Fervo’s IPO will be a milestone for the geothermal industry. For years, the business of tapping the Earth’s molten heat for energy has remained relatively small, geographically isolated, and dominated by incumbent players such as Ormat Technologies. But Fervo set off a startup boom when it demonstrated that it could use fracking technology to access hot rocks in places that don’t have the underground reservoirs that conventional geothermal companies rely upon. In yesterday’s newsletter, I told you about how Zanskar, a startup using artificial intelligence to find more conventional resources, and Sage Geosystems, a rival next-generation company to Fervo, had raised a combined $212 million. But as my colleague Matthew Zeitlin wrote in December when Fervo raised its most recent financing round, it’s not yet clear whether the company’s “enhanced” geothermal approach is price competitive. With how quickly things are progressing, we will soon find out.
Fervo isn’t the only big IPO news. General Fusion, the Canadian fusion energy startup TechCrunch describes as “struggling,” announced plans for a $1 billion reverse merger deal to go public on the Nasdaq. The move comes almost exactly a month after President Donald Trump’s social media company, the parent firm of Truth Social, inked a deal to merge with the fusion startup TAE Technologies and create the first publicly-traded fusion company in the U.S. Analysts I spoke to about the deal called it “flabberghasting,” and warned that TAE’s technology represented a more complex and dubious approach to commercializing fusion than that taken by rival companies such as Commonwealth Fusion Systems. Still, the IPO deals highlight the growing excitement over progress on generating power from a technology long mocked as the energy source of tomorrow that always will be. As Heatmap’s Katie Brigham artfully put it in 2024, “it is finally, possibly, almost time for fusion.”
General Motors plans to move manufacturing of the next generation of its Buick Envision SUV from China to the U.S. in two years and end production of the all-electric Chevrolet Bolt. The Detroit auto giant makes just one of its four SUV models in the U.S., leaving the cars vulnerable to Trump’s tariffs. The worst hit was the Envision, which is currently built in China. Starting in 2028, the latest version of the Envision will be produced in Kansas, taking over the assembly line that is currently churning out the Bolt.
It's a blow to GM's electric vehicle line. Chevy just brought back the Bolt in response to high demand after initially canceling production in 2023, because as Andrew Moseman put it in Heatmap, it's “the cheap EV we've needed all along.” While Chevy had always framed the return as a limited run, it was not previously clear how limited that would be.
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The Department of Energy said Thursday its newly rebranded Office of Energy Dominance Finance, formerly the Loan Programs Office, is “restructuring, revising, or eliminating more than $83 billion in Green New Scam loans and conditional commitments.” The move comes after “an exhaustive first-year review” of the $104 billion in principal loan obligations the Biden administration shelled out, including $85 billion the Trump administration accused of being “rushed out the door in the final months after Election Day.” In a statement, Secretary of Energy Chris Wright said the changes are meant to “ensure the responsible investment of taxpayer dollars.” While it’s not yet clear which projects are affected, the agency said the EDF eliminated about $9.5 billion in support for wind and solar projects and redirected that funding to natural gas and nuclear energy. But as Heatmap’s Emily Pontecorvo noted last night, the Energy Department hasn’t yet said which loans are set to be canceled as part of the latest cuts. The announcement may include loans that have already been canceled or restructured.
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If you know anything about surging electricity demand, you’re likely to finger a single culprit: data centers. But worldwide, air conditioning dwarfs data centers as a demand driver. And in California, electric vehicles are on pace to edge out data centers as a bigger driver of peak demand on the grid. That’s according to a new report from the California Energy Commission. Just look at this chart:

As the Golden State tries to get a grip on its electricity system, Representative Ro Khanna, the progressive Silicon Valley congressman often discussed as a potential 2028 presidential candidate, has doubled down on his calls to break up the state’s largest utility. On Thursday, Khanna posted on X that PG&E “should be broken up and owned by customers, not shareholders. They are ripping off Californians by buying off politicians in Sacramento.” The Democrat has been calling for PG&E’s demise since at least 2019, when the utility was on the hook for billions of dollars in damages from a wildfire sparked by its equipment. But the idea hasn’t exactly caught on.
New energy technologies such as batteries, solar panels, and wind turbines are driving demand for minerals and spurring a controversial push for new mines on virgin lands. But a new study by researchers at the University of Queensland’s Sustainable Minerals Institute found that a production boom is already underway at existing mines. The peer-reviewed paper, which is the first comprehensive global analysis of brownfield mining expansion, found that existing mines are growing in size and scale. Just because the mines are already there doesn’t mean the new production doesn’t come with some social cost. Nearly 78% of the 366 mines analyzed in the study “are located in areas facing multiple high-risk socioeconomic conditions, including weak governance, poor corruption control, and limited press freedom,” the study found.
The Department of the Interior has a new coal mascot. On Thursday, the agency posted an animated picture of a cartoonish, rosy-cheeked, chicken nugget-shaped lump of coal clad in a yellow hardhat and construction gear. His name? Coalie. The idea isn’t original. Australia’s coal-mining trade group rolled out an almost identical mascot a few years ago — same anthropomorphic lump of coal, same yellow attire. The only difference? His name was Hector, and he wore glasses.
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The spinoff of Lawrence Livermore National Lab has a new 10-point plan to get onto the grid by the 2030s.
One of fusion energy’s newest startups, Inertia Enterprises, is betting that the fastest route to commercial fusion runs through one of the field’s oldest ideas. The company, which raised a $450 million Series A earlier this year, plans to build a power plant based on the laser-driven fusion system pioneered at Lawrence Livermore National Laboratory’s — the only tech yet to have produced more energy from a fusion reaction than it took to initiate it. Now, Inertia has shared its commercialization roadmap exclusively with Heatmap, detailing the 10 near-term capabilities it must demonstrate before this landmark experiment can become a grid-scale power plant by the mid-2030s.
The roadmap offers a route from the national lab’s impressive but commercially impractical fusion demonstrations to an economical power plant capable of producing electricity for the grid. At its core are a set of milestones — mostly aimed at developing cheap, mass-manufacturable components — that Inertia says it must clear before those individual systems can be integrated into a working plant. This road is not necessarily linear, however, as various teams will likely be working on many of these goals simultaneously.
At least the physics of Inertia’s approach are already proven, the startup’s CEO Jeff Lawson told me, pointing to the fusion experiments at Lawrence Livermore’s National Ignition Facility as a proof-of-concept. The lab’s demonstration of net energy gain caps more than six decades and $30 billion (in 2026 dollars) of U.S. fusion research. The remaining challenges, he argued, are all engineering-related, requiring “elbow grease, hard work, and smart people” rather than breakthroughs in fusion science.
"It seems to us like a startup or a commercial company of any variety should be focused on commercializing a proven scientific result, as opposed to actually trying to demonstrate the basic science to begin with," Lawson told me. Basic science, he argues, is better left to national labs and universities, where researchers can pursue "unbounded problems" that don’t align with the expectations and timelines of venture-backed startups.
Indeed, no fusion startup has yet achieved scientific breakeven, the milestone Lawrence Livermore first hit in 2022, and has since repeated numerous times. But leading players such as Commonwealth Fusion Systems and Helion Energy maintain that it’s only a matter of time before they validate the physics behind their own reactor designs, which they claim will be highly cost-competitive.
Lawson, on the other hand, readily acknowledged that Lawrence Livermore’s tech is uneconomical in its current form. His bet is simply that the more predictable path to a commercial reactor is to drive down the cost of the lab’s validated fusion approach, known as inertial confinement. This system relies on high-powered lasers firing at a millimeter-scale pellet of fusion fuel, compressing it to extreme temperatures and pressures until the atoms fuse. Today, the National Ignition Facility makes each individual fusion target by hand, a workable solution given that it only uses about a dozen per year.
That production model, however, isn’t remotely plausible for a grid-scale power plant. Because each fusion reaction lasts just a fraction of a billionth of a second, a commercial facility must fire its lasers at a fresh target about 10 times per second to generate continuous electricity — requiring the production of hundreds of millions of targets each year.
Scaling production to roughly a million pellets per day and making them inexpensive enough for commercial operation without compromising the strength or precision required for fusion ignition is central to Inertia’s roadmap. That includes goals five, seven, eight and nine — industrializing the manufacturing of the carbon shells that hold the fusion fuel, making the thin films that hold those carbon shells both durable and cheap, scaling up and automating fusion target assembly, and speeding up how fast targets are filled with the requisite deuterium-tritium fuel.
The other central focus of the roadmap is the laser system, which will ultimately consist of 1,000 individual units operating in concert to compress and heat the fusion fuel. Key priorities include reducing the system’s cost (goal two), dramatically increasing its firing cadence (goal three), and bolstering its durability to withstand high-intensity operations (goal four). Goal six also complements these efforts, calling for the development of a control system capable of tracking moving fusion targets to precisely align each laser shot.
Goals one and 10 bookend the journey with some broader milestones. The first focuses on increasing the fusion target’s energy gain — the ratio of fusion energy produced to laser energy delivered — to more than 25 times ignition. Today, the National Ignition Facility’s best-performing laser shot has yielded a gain of just over four times what it took to start the reaction. Goal 10 then zooms out to the ultimate objective: integrating all these technologies into a commercially viable power plant that can deliver either electricity or industrial heat to end customers.
To reach that point, Inertia has embarked on an industrial engineering hiring spree, recruiting folks with experience taking complex hardware systems from prototype to mass production, “not unlike the processes that are used in the semiconductor or consumer electronics world,” Lawson explained. The company has been making progress on its component development goals since the beginning of the year, he told me, and expects to announce the successful demonstration of a few of these milestones in the coming months. Lawson ultimately expects Inertia to complete the core components of its laser and target manufacturing systems by the middle of next year.
The team will spend the next two to three years integrating these individual pieces into two fully operational subsystems, a prototype laser system and a target manufacturing line. Around 2030, the company will begin combining those subsystems into a first-of-a-kind fusion power plant, which will also serve as the proving ground for the target chamber, tritium fuel breeding system, and power conversion system that turns fusion heat into electricity. By the middle of the next decade, Inertia aims to be generating power from this first plant, setting the stage for the company to build and connect additional grid-scale commercial power plants.
There are plenty of engineering trade-offs that the company will have to solve for. Take the decision around how to size the target chamber, for example. “If you make it bigger, your walls have an easier time and survive longer, but it’s more expensive. If you make it smaller, your walls have a tougher time because they’re closer to all the heat and energy that the fusion reaction is creating, but now your power plant costs less to build.”
But to Lawson, this represents exactly the type of problem Inertia was built to solve: complex engineering issues that come to the fore once scientists have demonstrated the fundamental physics are sound. He thinks other fusion companies may someday reach this stage, as well — though he’s unwilling to hazard a guess on exactly what approach or startup is best positioned to do so.
“There have been generations of scientists who’ve made their predictions about fusion energy and gotten it wrong,” he told me. “I’m not going to pretend to be smarter than them. All I’m here to say is, just knowing that one did work, we can commercialize it.”