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On the third anniversary of the signing of the Inflation Reduction Act, Heatmap contributor Advait Arun mourns what’s been lost — but more importantly, charts a path toward what comes next.

Today, the Inflation Reduction Act would have turned three years old — if it hadn’t been buried alive in a big, beautiful grave. While the IRA was a hodgepodge of programs salvaged from President Biden’s far more ambitious Build Back Better agenda, it still represented the biggest climate investment in U.S. history. It catalyzed over $360 billion in energy and manufacturing investments and was expected to drive the installation of over 155 gigawatts of new solar and wind energy by 2030. And now Republicans have taken a sledgehammer to its achievements.
The timing could not be worse — not just for the climate, but also for the energy systems that we rely on. At a moment when the energy sector requires $1.4 trillion worth of upgrades by 2030 just to keep up with rising energy demand and increasingly erratic weather, Republicans have instead delivered a one-two punch of tariffs and tax hikes, sabotaging the industrial base required to deliver those investments and raising the retirement age of our power generation fleet.
All over the country (Texas and California maybe exempted), our aging electricity system is putting in its two-weeks notice. Staring down the barrel of precipitous demand growth, the country’s regulated utilities have requested over $29 billion in rate increases, concentrated across the West and South. The Department of Energy ordered the delayed retirement of coal plants and oil generators to manage this summer’s demand peaks. Meanwhile, capacity market prices on two of the country’s largest grids, PJM and MISO, have reached record highs ― a cry for new supply that is now increasingly unlikely to materialize quickly or cheaply. Two months ago, an unplanned nuclear reactor outage on a congested part of Louisiana’s energy grid led to a blackout for 100,000 people in and around New Orleans. That meant no working AC or refrigerators across large swaths of the city during a sweltering Memorial Day weekend.
All of this amounts to an opening for Democrats to shift public opinion decisively in favor of renewed climate action. Moving forward, lawmakers cannot ignore our infirm fossil-fired energy system, which stands to thwart their ability to deliver affordability, employment, health, and resilience to their constituents. Despite our recent losses, we still need an energy policy ― a climate policy.
What should the Democrats’ second attempt at a clean investment program look like? Having delivered the Bipartisan Infrastructure Law and the Inflation Reduction Act, laws that committed the state to the realization of a particular energy future, Democrats are well-positioned to build on their successes, and even to engage Republicans who remain interested in supporting innovative technologies, decarbonizing industry, and protecting public lands.
Where they cannot meet Republicans halfway, Democrats should double their ambitions. They must continue to embrace the power of federal investment to shape markets and achieve policy goals. But they must also learn from the shortcomings of their previous legislative outings and substantively change how the federal government invests in the first place. The way forward for Democrats starts with mapping out exactly how far they didn’t go, and ends with going there.
IRA and BIL were paradigm-shifting attempts at market-shaping. They laid the groundwork for the deployment of promising clean firm energy technologies such as next-generation geothermal and nuclear energy, as well as for necessary grid and supply chain upgrades, such as long-distance transmission corridors and critical minerals processing.
IRA and BIL were not, however, a comprehensive climate policy. They created cost-share programs for infrastructure resilience but neglected to buttress municipal bond markets, which states and local governments can use to make longer-term investments in climate resilience and adaptation. They penalized methane emissions but organized no comprehensive or compulsory managed phaseout of fossil fuel infrastructure. They failed to advance or adequately finance a coordinated deployment strategy for any key energy sector. And they shed the transformative vision of Biden’s Build Back Better agenda, which sought to stabilize the cost of living for Americans in the meantime — a tactical retreat that, in retrospect, looks ill-advised given voters’ current worries about affordability.
I am aware that criticizing BIL and IRA on these grounds amounts to judging them for goals they didn’t attempt to achieve. Judging them by the goals they did attempt to achieve, however, reveals that they only ever worked incompletely. Taken together, BIL and IRA expanded the energy tax credit system, created powerful programs for piloting and deploying innovative energy technologies, and seeded an ecosystem of regional financing institutions devoted to more equitably distributing the benefits of decarbonization. But the energy tax credits were never expansive enough; the programs intended to motivate investments into deeper decarbonization were not flexible enough to drive the mass uptake of emerging technologies; and efforts to decarbonize disadvantaged communities lacked a coherent strategy and ran headlong into local capacity constraints.
Speeding up the energy transition and building new infrastructure at scale requires endowing federal and state agencies with adequate appropriations, access to liquidity, and crystal-clear, wide-ranging mandates, as well as empowering them in statute with considerable flexibility as to the financial products and strategies they deploy to achieve those mandates.
Although imperfect, the IRA’s tax credits scored some significant wins that should undoubtedly inform future policy. The law took an existing system of technology-specific subsidies that had been on the books in some form since 1978 and made them technology-neutral, allowing developers of nearly any zero-emissions energy technology to access tax relief. It expanded the credits to domestic manufacturers of certain low- and zero-carbon technologies. It created a tax credit transfer market, allowing developers with limited tax liability to sell their credits for cash on an open market to any tax-liable buyer, rather than engage in expensive and complex “tax equity” transactions with a few large banks. It made certain credits directly accessible to tax-exempt entities, significantly broadening the pool of potential users. And most of these credits remained entirely uncapped ― a “bottomless mimosa” for developers that spurred over $321 billion in clean energy and manufacturing investments and supported more than 2,000 new facilities across the country.
To be sure, the IRA did not level the playing field perfectly across developers or across technologies. Developers of energy transmission, grid transformers, and electric rail were shut out of the credits. Tax-exempt public and nonprofit developers ― entities as large as the New York Power Authority and as small as local churches ― could not monetize depreciation or participate in the transfer market. And some credits remained capped, forcing developers to apply and cross their fingers. But as early as 2023, Goldman Sachs argued that even with these inadequacies ― which have easy legislative and statutory fixes ― the IRA would still have spurred over $3 trillion in investment by 2033.
The GOP has gutted much of this system, shortcomings and all, and replaced it with a tangle of red tape. The energy tax credits are once again technology-specific ― solar and wind developers have a few months left to start a project and claim the credits as written, though what it means to start a project got more complex just yesterday. But even the “clean firm” energy technologies that can still claim credits until 2032, such as nuclear and geothermal, may not be safe under new “foreign entity of concern” rules, which condition credits on developers’ ability to limit their reliance on Chinese suppliers and investment, requiring them to map out their supply chains at an unprecedented level of detail.
Democrats seeking to restore and build upon this plank of the IRA have their work cut out for them. The developers and manufacturers of any technology that contributes to zero-emissions energy production should be able to access and monetize federal support regardless of their tax status and free from the rigmarole and uncertainties imposed by competitive application procedures. Goldman Sachs’ $3 trillion estimate is now the lower bound of what’s possible — for instance, a tax credit for transmission investments suggested as part of Build Back Better but excluded from the IRA could have catalyzed over $15 billion in investment and supported the economics of all other energy projects. To the degree that the tax credits can help build industrial capacity and institutional support for decarbonization, future policymaking should maximize their remit and their distribution.
Tax credits alone, however, are hardly a skeleton key to decarbonization. Being disbursed only once a project is complete, tax credits do not substitute for the kinds of upfront financial support that project developers — especially developers of emerging technologies — require to complete their projects in the first place. Private investors have been comfortable with solar, batteries, and onshore wind because these projects can be completed, claim their tax credits, and earn revenues on the grid on a mostly predictable timetable. But new nuclear reactors, geothermal, hydrogen, green steel, and carbon capture are unfamiliar investments, have uncertain development pathways and return profiles, and thus remain un-bankable to investors.
This is why BIL and IRA created powerful programs worth tens of billions of dollars to finance the deployment of emerging clean technologies and break this vicious cycle of uncertainty. The Office of Clean Energy Demonstrations, or OCED, and the Loan Programs Office, or LPO, in particular, were empowered to support, at scale, the testing and commercialization of these emerging technologies as well as conversions of whole electricity grids.
OCED, with over $27 billion in appropriations, set up hubs for hydrogen and carbon capture projects across the country, and funded a suite of advanced steel and iron decarbonization projects. Endowed by BIL and IRA with over $15 billion in total credit subsidy and well over $300 billion in total loan authority, LPO made ambitious investments across a host of innovative technology categories, including ― but certainly not limited to ― energy storage, sustainable aviation fuels, virtual power plants, EV charging, and bioenergy. At the end of 2024, the LPO had over 200 loan applicants in its queue.
By rescinding OCED’s unobligated funding, ambiguously rewriting LPO’s lending authorities (while rescinding most of its unobligated credit subsidy), and pulling the plug on billions of dollars worth of conditional commitments, the GOP has stopped years of progress in its tracks. In the meantime, LPO has shed considerable staff while the administration has prevented it from making any new commitments. The combination of the “foreign entity of concern” rules constraining tax credit eligibility and this shuttering of federal financing opportunities could seriously throttle the development and commercialization of nuclear energy in particular, the darling du jour of Republicans’ energy strategy.
If these offices were once the engines of decarbonization, they needed a stronger spark plug. The LPO, in particular, has a special authority to finance state government-backed, non-innovative clean energy projects, such as regional battery manufacturing clusters or a state power developer’s renewables portfolio, but has never used it. And while OCED and LPO can provide developers with some degree of upfront support, LPO cannot easily provide construction loans, cannot derisk project cash flows to provide security to investors, and cannot mandate offtake. These deficiencies prevent ambitious borrowers with unproven technologies from scaling up: they scare off private lenders in the infrastructure sector, many of which are skittish about construction risk, require project developers to demonstrate three to five years of stable cash flows, have a low tolerance for market price uncertainty, and have shareholders who demand a certain level of returns.
The DOE can bridge this “valley of death” by using its broader market-shaping authorities to take a more aggressive “dealership” role in these sectors, providing stable offtake for developers through upfront purchasing while becoming a reliable source of supply to downstream customers (like an actual car dealership or a grocery store). The DOE has in fact already used this approach to provide demand-side support to its now-endangered hydrogen hubs through OCED.
These kinds of public dealership arrangements are not unique or path-breaking: The Federal Reserve’s backstop of the municipal bond market in 2020, nonprofit investor Climate United’s planned EV trucking purchase-and-lease program in California, and even the Department of Defense’s recent MP Materials deal are all examples of public entities addressing a mismatch in the supply of and demand for a critical good and, in doing so, shaping markets toward public ends.
For all that BIL and IRA built avenues for developing and deploying energy technologies, they were also full of programs aimed at distributing the fruits of decarbonization equitably. Both the energy community bonus credits, a provision in the IRA that increased the value of the energy tax credits for projects in poorer, higher-unemployment, and energy facility-adjacent communities, and President Biden’s Justice40 initiative, which directed 40% of federal spending toward poorer and more rural communities, exemplified the administration’s “place-based” approach to industrial policy and economic development. The Biden administration heavily encouraged disadvantaged communities, local governments, schools, nonprofits, and tribal nations to develop their own clean energy projects — aided by the IRA’s direct pay mechanism, which allowed tax-exempt entities to access subsidies — by drawing on the various local decarbonization programs in BIL and IRA.
The Greenhouse Gas Reduction Fund, perhaps the most important of these programs, exemplifies the promises and pitfalls of the administration’s approach to “place-based” industrial policy. Managed by the Environmental Protection Agency, GGRF provided $27 billion to disadvantaged communities for the financing of rooftop solar, zero-emissions transport, and net-zero housing. That pot was split into three thematic buckets ― $7 billion to the Solar for All program, specifically for rooftop solar development; $14 billion to the National Clean Investment Fund, for supporting clean energy project finance more broadly in disadvantaged communities; and $6 billion more to local and regional technical assistance providers. Each program then subdivided its appropriations further. Solar for All went to 60 recipients across the country via a competitive application. The National Clean Investment Fund’s $14 billion was split among three awardees, each a coalition of various financial institutions designed to lend to energy projects, such as green banks, impact investors, and nonprofits ― and each of those recipient coalitions planned to subdivide much of its funds still further, first among coalition partners and then to subordinate local and state partners.
That dizzying program structure was meant to endow local communities with the ability to finance their own projects. And by including so many nonprofit institutions, GGRF could make significant inroads into Republican states, whose officials might otherwise reject federal funding.
But there was not much coordination between partners and subawardees around how best to deploy those funds. And what seemed like a firehose of financing often reached local recipients as a trickle of pre-development and technical assistance grants. Demanding that local organizations build their own capacity to plan, finance, and develop projects (or hire expensive external consultants to do so) ― with limited and one-time funds, no less ― is duplicative and inefficient, and it defeats GGRF’s own stated goal of mobilizing private capital through building standardized markets for decarbonization, thereby slowing down the pace of emissions reductions. The program’s complexity also left it vulnerable to EPA Administrator Lee Zeldin’s efforts to hound the program in court and freeze its funding.
Pandemic-era proposals for a National Investment Authority, as well as legislative proposals for a national green bank ― predecessors to the GGRF ― differ sharply from this status quo, instead highlighting how public finance can benefit from economies of scale. Larger financial institutions tasked with deploying clean energy projects can more easily prepare portfolios of projects for co-investors, engage with utilities, raise debt on municipal bond markets, and build a bench of trustworthy private developers to contract for projects. If they are publicly administered, these institutions can also take more risk, undercut private lenders, support more developers, engage with local communities to meet their needs, and use revenues from higher-return projects to derisk lower-return projects that might be necessary to build to achieve their resilience and affordability goals.
Should policymakers get a second shot at building a national green bank system, they should not try to recreate GGRF’s fractal approach to energy finance. Rather, policymakers must ensure that financing sits in the hands of public agencies that already have the authorities and expert staff to be ambitious market-shapers: bond banks, state-led energy finance authorities, and public developers. The good news is that state-level green banks empowered with state funding and a political mandate are already exercising their capacities to shape markets and support disadvantaged communities directly: the New York Power Authority, the Minnesota Climate Innovation Finance Authority, the Connecticut Green Bank, and the Greater Arizona Development Authority, to name a few, are all taking it upon themselves to raise debt and contract with developers to undertake ambitious energy and infrastructure investment programs.
But Democrats should be clear-eyed about the consequences of this reorientation: It means rejecting the prevailing wisdom that local nonprofits should necessarily coordinate local project development. Local groups can be extremely effective advocates for communities’ needs ― but in contrast to public investment agencies, their capacity to finance and implement solutions is simply not great enough.
This analysis of IRA and BIL leaves out more parts of the laws than it includes ― to take just one example, the BIL’s $5 billion National Electric Vehicle Infrastructure charging station program. But the story is similar: Ambitious as it seemed, NEVI money could only flow when state governments set up implementation offices and had their spending plans approved by federal officials. Most states, which had not prepared for any of this, took years to build the requisite capacity ― just in time for the Trump administration to try and snatch away the funding (though it recently admitted defeat in that project). In fairness to state governments, the EV charging sector is incredibly new. But even this program highlights how IRA and BIL lacked the capacity to be implemented as quickly and efficiently as their supporters hoped.
Going above and beyond BIL and IRA to deliver an energy policy that stabilizes Americans’ cost of living while driving an energy transition away from fossil fuels and toward the technologies of the future ― Democrats should embrace this challenge. But they should also be aware that climate ambition runs headlong into the same institutional problems facing American democracy at large. The Senate filibuster prevents either party from comprehensively redesigning the federal government, its institutions, and its regulations to serve Americans more quickly and more efficiently. That leaves both parties reliant on budget reconciliation ― to our detriment. The head-spinning design of GGRF was itself an artifact of the reconciliation process, which prevented Congress from creating a single green bank institution or giving it a specific mandate; its awardee organizations and coalitions certainly did not ask for the program structure they got.
There’s a lot more that budget reconciliation will never solve: the century-old American utility system, the regulatory thicket of U.S. electricity markets, or the land use and permitting rules that constrain project development and grid interconnection. And things could get worse: Trump-appointed judges and Supreme Court justices who reject federal agencies’ and state governments’ attempts to regulate fossil fuel infrastructure have placed the legal system itself at odds with responsible energy system management. The courts may no longer be able to block clawbacks and recissions of legally obligated federal spending. Democrats, like clean energy developers, do not fight on a level playing field.
While Democrats are out of federal power, they should practice ambitious climate policymaking at the state level. States already have considerable ability to raise finance and build capacity for ambitious infrastructure projects ― and they might have to quickly, considering the drain of federal capacity that might support them. By developing their own public programs for transmission finance, utility-scale battery procurement, virtual power plants, and clean firm energy pilots, Democratic state governments can ensure that the ecosystem of clean energy developers created by BIL and IRA does not disappear for lack of demand — and in doing so, these states would help stabilize the cost of clean energy project development.
Finally, Democrats should not forget that climate remains a cost of living issue. In a city like New Orleans, rocked by the recent nuclear outage, residents spend, on average, over 19% of their incomes on their energy bills, over three times the DOE’s threshold to be considered an energy-burdened community. Their bills already include adders for climate adaptation and disaster preparedness ― yet, for all they spend, they still face blackouts, and their costs will only increase as their grid continues to deteriorate. Here, climate policy is not about combating Chinese supply chain dominance, or even about delivering an American industrial renaissance. It’s about keeping the lights on, keeping bills low, keeping the air clean, and keeping residents safe from disaster.
It turns out that voters all over the country still care about these goals. A majority of likely voters in the next election think climate change will have a direct impact on their or their family’s finances. This constituency is still in play — and given sharply deteriorating macroeconomic conditions, soon-to-spike electricity prices, and the ever-increasing threat of climate disaster, these cost-of-living-focused voters could be far more vocal, relevant, and hungry for change than a coalition built on vague sabre-rattling against China.
In 2022, Democrats made a valiant first attempt to transform the state itself. Perhaps it was inadequate, perhaps it was impossible to do more at the time, but that’s no reason not to think seriously about the kind of policymaking, institutional, and financial interventions that would be called for should they get a second shot at realizing that goal. The rollback of the IRA only reveals how much Democrats left on the table three years ago ― and how much farther a real climate policy could go.
Editor’s note: This story has been updated to clarify the relationship between the unplanned nuclear shutdown and the power outage in New Orleans.
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Representatives Jake Auchincloss and Mark Amodei want to boost “superhot” exploration.
Geothermal is about the only energy topic that Republicans and Democrats can agree on.
“Democrats like clean energy. Republicans like drilling. And everyone likes baseload power that is generated with less than 1% of the land and materials of other renewables,” Massachusetts Representative Jake Auchincloss, a Democrat, told me.
Along with Republican Representative Mark Amodei of Nevada, Auchincloss is introducing the Hot Rock Act on Friday, focusing specifically on “superhot” or “supercritical” geothermal resources, i.e. heat deposits 300 degrees Celsius or above. (Temperatures in large traditional geothermal resources are closer to 240 degrees.)
The bill — of which Heatmap got an exclusive early peek — takes a broad approach to supporting research in the sector, which is currently being explored by startups such as Quaise Energy and Mazama Energy, which in October announced a well at 331 degrees.
There’s superhot rock energy potential in around 13% of North America, modeling by the Clean Air Task Force has found — though that’s mostly around 8 miles below ground. The largest traditional geothermal facility in the U.S. is only about 2.5 miles at its deepest.
But the potential is enormous. “Just 1% of North America’s superhot rock resource has the potential to provide 7.5 terawatts of energy capacity,” CATF said. That’s compared to a little over a terawatt of current capacity.
Auchincloss and Amodei’s bill would direct the Department of Energy to establish “milestone-based research grant programs,” under which organizations that hit goals such as drilling to a specific depth, pressure, or temperature would then earn rewards. It would also instruct the DOE to create a facility “to test, experiment with, and demonstrate hot dry rock geothermal projects,” plus start a workforce training program for the geothermal industry.
Finally, it would grant a categorical exclusion from the National Environmental Policy Act for drilling to explore or confirm geothermal resources, which could turn a process that takes over a year into one that takes just a couple of months.
Geothermal policy is typically a bipartisan activity pursued by senators and House members from the Intermountain West. Auchincloss, however, is a New Englander. He told me that he was introduced to geothermal when he hosted an event in 2022 attended by executives from Quaise, which was born out of the Massachusetts Institute of Technology.
It turned out the company’s pilot project was in Nevada, and “I saw it was in Mark Amodei’s district. And I saw that Mark is on Natural Resources, which is the other committee of jurisdiction. And so I went up to him on the floor, and I was like, Hey there, you know, there's this company announcing this pilot,” Auchincloss told me.
In a statement, Amodei said that “Nevada has the potential to unlock this resource and lead the nation in reliable, clean energy. From powering rural communities and strengthening critical mineral production to meeting the growing demands of data centers, geothermal energy delivers dependable 24/7 power.”
Auchincloss told me that the bill “started from the simple premise of, How do we promote this technology?” They consulted climate and technology experts before reaching consensus on the milestone-based payments, workforce development, and regulatory relief components.
“I didn't have an ideological bent about the right way to do it,” Auchincloss said.
The bill has won plaudits from a range of industry groups, including the Clean Energy Buyers Association and Quaise itself, as well as environmental and policy organizations focused on technological development, like the Institute for Progress, Third Way, and the Breakthrough Institute.
“Our grassroots volunteers nationwide are eager to see more clean energy options in the United States, and many of them are excited by the promise of reliable, around-the-clock clean power from next-generation geothermal energy,” Jennifer Tyler, VP government affairs at the Citizens' Climate Lobby, said in a statement the lawmakers provided to Heatmap. “The Hot Rock Act takes a positive step toward realizing that promise by making critical investments in research, demonstration, and workforce development that can unlock superhot geothermal resources safely and responsibly.”
With even the Trump administration generally pro-geothermal, Auchincloss told me he’s optimistic about the bill’s prospects. “I expect this could command broad bipartisan support,” he said.
Plus a pre-seed round for a moon tech company from Latvia.
The nuclear headlines just keep stacking up. This week, Inertial Enterprises landed one of the largest Series A rounds I’ve ever seen, making it an instant contender in the race to commercialize fusion energy. Meanwhile, there was a smaller raise for a company aiming to squeeze more juice out of the reactors we already have.
Elsewhere over in Latvia, investors are backing an early stage bid to bring power infrastructure to the moon, while in France, yet another ultra-long-duration battery energy storage company has successfully piloted their tech.
Inertia Enterprises, yet another fusion energy startup, raised an eye-popping $450 million Series A round this week, led by Bessemer Venture Partners with participation from Alphabet’s venture arm GV, among others. Founded in 2024 and officially launched last summer, the company aims to develop a commercial fusion reactor based on the only experiment yet to achieve scientific breakeven, the point at which a fusion reaction generates more energy than it took to initiate it.
This milestone was first reached in 2022 at Lawrence Livermore National Laboratory’s National Ignition Facility, using an approach known as inertial confinement fusion. In this method, powerful lasers fire at a small pellet of fusion fuel, compressing it until the extremely high temperature and pressure cause the atoms inside to fuse and release energy. Annie Kritcher, who leads LLNL’s inertial confinement fusion program, is one of the cofounders of Inertia, alongside Twilio co-founder Jeff Lawson and Stanford professor Mike Dunne, who formerly led a program at the lab to design a power plant based on its approach to fusion.
The Inertia team plans to commercialize LLNL’s breakthrough by developing a new fusion laser system it’s calling Thunderwall, which it says will be 50 times more powerful than any laser of its type to date. Inertia isn’t the only player trying to commercialize laser-driven fusion energy — Xcimer Energy, for example, raised a $100 million Series A in 2024 — but with its recent financing, it’s now by far the best capitalized of the bunch.
As Lawson, the CEO of the new endeavor said in the company’s press release, “Our plan is clear: build on proven science to develop the technology and supply chain required to deliver the world’s highest average power laser, the first fusion target assembly plant, and the first gigawatt, utility-scale fusion power plant to the grid.” Great, but how soon can they do it? The goal, he says, is to “make this real within the next decade.”
In more nuclear news, the startup Alva Energy launched from stealth on Thursday with $33 million in funding and a proposal to squeeze more capacity out of the existing nuclear fleet by retrofitting pressurized-water reactors. The round was led by the venture firm Playground Global.
The startup plans to boost capacity by building new steam turbines and electricity generators adjacent to existing facilities, such that plants can stay online during the upgrade. Then when a plant shuts down for scheduled maintenance, Alva will upgrade its steam generator within the nuclear containment dome. That will allow the system to make 20% to 30% more steam, to be handled by the newly built turbine-generator system.
The company estimates that these retrofits will boost each reactor’s output by 200 megawatts to 300 megawatts. Applied across the dozens of existing facilities that could be similarly upgraded, Alva says this strategy could yield roughly 10 new gigawatts of additional nuclear capacity through the 2030s — the equivalent of building about 10 new large reactors.
Biden’s Department of Energy identified this strategy, known as “uprating”, as capable of adding 2 gigawatts to 8 gigawatts of new capacity to the grid. Alva thinks it can go further. The company promises to manage the entire uprate process from ensuring regulatory compliance to the procurement and installation of new reactor components. The company says its upgrades could be deployed as quickly as gas turbines are today — a five- to six-year timeline — at a comparable cost of around $1 billion per gigawatt.
Deep Space Energy, a Latvian space tech startup, has closed a pre-seed funding round to advance its goal of becoming a commercial supplier of electricity for space missions on the moon, Mars, or even deeper into space where sunlight is scarce. The company is developing power systems that convert heat from the natural decay of radioisotopes — unstable atoms that emit radiation as they decay — into electricity.
While it’s still very early-stage, this tech’s first application will likely be backup power for defense satellites. Long term, Deep Space Energy says it “aims to focus on the moon economy” by powering rovers and other lunar installations, supporting Europe’s goal of increasing its space sovereignty by reducing its reliance on U.S. defense assets such as satellites. While radioisotope generators are already used in some space missions, the company says its system requires five times less fuel than existing designs.
Roughly $400,000 of the funding came from equity investments from the Baltic-focused VC Outlast Fund and a Lithuanian angel investor. The company also secured nearly $700,000 from public contracts and grants from the European Space Agency, the Latvian Government, and a NATO program to accelerate innovation with dual-use potential for both defense and commercial applications.
As I wrote a few weeks ago, Form Energy’s iron-air battery isn’t the only player targeting 100-plus hours of low-cost energy storage. In that piece, I highlighted Noon Energy, a startup that recently demoed its solid-oxide fuel cell system. But there’s another company aiming to compete even more directly with Form by bringing its own iron-air battery to the European market: Ore Energy. And it just completed a grid-connected pilot, something Form has yet to do.
Ore piloted its 100-hour battery at an R&D center in France run by EDF, the state-owned electric utility company. While the company didn’t disclose the battery’s size, it said the pilot demonstrated its ability to discharge energy continuously for about four days while integrating with real-world grid operations. The test was supported by the European Union’s Storage Research Infrastructure Eco-System, which aims to accelerate the development of innovative storage solutions, and builds on the startup’s earlier grid-connected installation at a climate tech testbed in the Netherlands last summer.
Founded in 2023, Ore plans to scale quickly. As Bas Kil, the company’s business development lead, told Latitude Media after its first pilot went live, “We’re not planning to do years and years of pilot-scale [projects]; we believe that our system is now ready for commercial deployment.” According to Latitude, Ore aims to reach 50 gigawatt-hours of storage per year by 2030, an ambitious goal considering its initial grid-connected battery had less than one megawatt-hour of capacity. So far, the company has raised just shy of $30 million to date, compared to Form’s $1.2 billion.
Battery storage manufacturer and virtual power plant operator Sonnen, together with the clean energy financing company Solrite, have launched a Texas-based VPP composed exclusively of home batteries. They’re offering customers a Solrite-owned 60-kilowatt-hour battery for a $20 monthly fee, in exchange for a fixed retail electricity rate of 12 cents per kilowatt-hour — a few cents lower than the market’s average — and the backup power capability inherent to the system. Over 3,000 customers have already enrolled, and the companies are expecting up to 10,000 customers to join by year’s end.
The program is targeting Texans with residential solar who previously sold their excess electricity back to the grid. But now that there’s so much cheap, utility-scale solar available in Texas, electricity retailers simply aren’t as incentivized to offer homeowners favorable rates. This has left many residents with “stranded” solar assets, turning them into what the companies call “solar orphans” in need of a new way to make money on their solar investment. Customers without rooftop solar can participate in the program as well, though they don’t get a catchy moniker.
Current conditions: New Orleans is expecting light rain with temperatures climbing near 90 degrees Fahrenheit as the city marks the 20th anniversary of Hurricane Katrina • Torrential rains could dump anywhere from 8 to 12 inches on the Mississippi Valley and the Ozarks • Japan is sweltering in temperatures as high as 104 degrees.
President Donald Trump has done what he didn’t dare attempt during his first term, repealing the finding that provided the legal basis for virtually all federal regulations to curb greenhouse gas emissions. By rescinding the 2009 “endangerment finding,” which established that planet-heating emissions harm human health and therefore qualify for restrictions under the Clean Air Act, the Trump administration hopes to unwind all rules on pollution from tailpipes, trucks, power plants, pipelines, and drilling sites all in one fell swoop. “This is about as big as it gets,” Trump said alongside Environmental Protection Agency Administrator Lee Zeldin at a White House event Thursday.
The repeal, which is sure to face legal challenges, opens up what Reuters called a new front in the legal wars over climate change. Until now, the Supreme Court had declined to hear so-called public nuisance cases brought by activists against fossil fuel companies on the grounds that the legal question of emissions was being sorted out through federal regulations. By eliminating those rules outright, litigants could once again have new standing to sue over greenhouse gas emissions. To catch up on the endangerment finding in general, Heatmap’s Robinson Meyer and Emily Pontecorvo put together a handy explainer here.
A bill winding its way through Ohio’s Republican-controlled state legislature would put new restrictions on development of wind and solar projects. The state already makes solar and wind developers jump over what Canary Media called extra hurdles that “don’t apply to fossil-fueled or nuclear power plants, including counties’ ability to ban projects.” For example, siting authorities defer to local opposition on renewable energy but “grant opponents little say over where drilling rigs and fracking waste can go.”
The new legislation would make it state policy “in all cases” for new power plants to “employ affordable, reliable, and clean energy sources.” What qualifies as “affordable, reliable, and clean”? Pretty much everything except wind and solar, potentially creating a total embargo on the energy sources at any utility scale. The legislation mirrors a generic bill promoted to states by the American Legislative Exchange Council, a right-wing policy shop.
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China’s carbon dioxide emissions fell by 1% in the last three months of 2025, amounting to a 0.3% drop for the full year. That’s according to a new analysis by Carbon Brief. The decline extends the “flat or falling” trend in China’s emissions that started in March 2024 and has now lasted nearly two years. Emissions from fossil fuels actually increased by 0.1%, but pollution from cement plunged 7%. While the grid remains heavily reliant on coal, solar output soared by 43% last year compared to 2024. Wind grew by 14% and nuclear by 8%. All of that allowed coal generation to fall by 1.9%.
At least one sector saw a spike in emissions: Chemicals, which saw emissions grow 12%. Most experts interviewed in Heatmap’s Insiders Survey said they viewed China has a climate “hero” for its emissions cuts. But an overhaul to the country’s electricity markets yielded a decline in solar growth last year that’s expected to stretch into this year.
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Rivian Automotive’s shares surged nearly 15% in after-hours trading Thursday when the electric automaker announced earnings that beat Wall Street’s expectations. While it cautioned that it would continue losing money ahead of the launch of its next-generation R2 mid-size SUV, the company said it would deliver 62,000 to 67,000 vehicles in 2026, up 47% to 59% compared with 2025. Rivian CEO RJ Scaringe told CNBC that the R2 would make up the “majority of the volume” of the business by the end of next year. He told investors 2025 was a “foundational year” for the company, but that 2026 would be “an inflection point.”
Another clean energy company is now hot on the stock market. SOLV Energy, a solar and battery storage construction contractor, secured market capitalization eclipsing $6 billion in the two days since it started trading on the Nasdaq. The company, according to Latitude Media, is “the first pure-play solar and storage” company in the engineering, procurement, and construction sector of the industry to go public since 2008.

Israel has never confirmed that it has nuclear weapons, but it’s widely believed to have completed its first operating warhead in the 1960s. Rather than give up its strategic ambiguity over its arsenal, Israel instead forfeited the development of civilian nuclear energy, which would have required opening up its weapons program to the scrutiny of regulators at the United Nations’ International Atomic Energy Agency. That apparently won’t stop the U.S. from building a reactor in Israel to power a joint industrial complex. Washington plans to develop a campus with an advanced microchip factory and data centers that would be powered by a small modular reactor, NucNet reported. So-called SMRs have yet to be built at a commercial scale anywhere in the world. But the U.S. government is betting that smaller, less powerful reactors purchased in packs can bring down the cost of building nuclear plants and appeal to fearful skeptics as a novel spin on the older technology.
In reality, SMRs are based on a range of designs, some of which closely mirror traditional, large-scale reactors but for the power output, and a growing chorus of critics say the economies of scale are needed to make nuclear projects pencil out. But the true value of SMRs is for off-grid power. As I wrote last week for Heatmap, if the U.S. government wants it for some national security concern, the price doesn’t matter as much.
Of all the fusion companies racing to build the first power plant, Helion’s promise of commercial electricity before the end of the decade has raised eyebrows for its ambition. But the company has hit a milestone. On Friday morning, Helion’s Polaris prototype became the first privately developed fusion reactor to use a deuterium-tritium fuel source. The machine also set a record with plasma temperatures 150 million degrees Celsius, smashing its own previous record of 100 million degrees with an earlier iteration of Helion’s reactor.