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:
With policy chaos and disappearing subsidies in the U.S., suddenly the continent is looking like a great place to build.

Europe has long outpaced the U.S. in setting ambitious climate targets. Since the late 2000s, EU member states have enacted both a continent-wide carbon pricing scheme as well as legally binding renewable energy goals — measures that have grown increasingly ambitious over time and now extend across most sectors of the economy.
So of course domestic climate tech companies facing funding and regulatory struggles are now looking to the EU to deploy some of their first projects. “This is about money,” Po Bronson, a managing director at the deep tech venture firm SOSV told me. “This is about lifelines. It’s about where you can build.” Last year, Bronson launched a new Ireland-based fund to support advanced biomanufacturing and decarbonization startups open to co-locating in the country as they scale into the European market. Thus far, the fund has invested in companies working to make emissions-free fertilizers, sustainable aviation fuel, and biofuel for heavy industry.
It’s still rare to launch a fund abroad, and yet a growing number of U.S. companies and investors are turning to Europe to pilot new technology and validate their concepts before scaling up in more capital-constrained domestic markets.
Europe’s emissions trading scheme — and the comparably stable policy environment that makes investors confident it will last — gives emergent climate tech a greater chance at being cost competitive with fossil fuels. For Bronson, this made building a climate tech portfolio somewhere in Europe somewhat of a no-brainer. “In Europe, the regulations were essentially 10 years ahead of where we wanted the Americas and the Asias to be,” Bronson told me. “There were stricter regulations with faster deadlines. And they meant it.”
Of the choice to locate in Ireland, SOSV is in many ways following a model piloted by tech giants Google, Microsoft, Apple, and Meta, all of which established an early presence in the country as a gateway to the broader European market. Given Ireland’s English-speaking population, low corporate tax rate, business-friendly regulations, and easy direct flights to the continent, it’s a sensible choice — though as Bronson acknowledged, not a move that a company successfully fundraising in the U.S. would make.
It can certainly be tricky to manage projects and teams across oceans, and U.S. founders often struggle to find overseas talent with the level of technical expertise and startup experience they’re accustomed to at home. But for the many startups struggling with the fundraising grind, pivoting to Europe can offer a pathway for survival.
It doesn’t hurt that natural gas — the chief rival for many clean energy technologies — is quite a bit more expensive in Europe, especially since Russia’s invasion of Ukraine in 2022. “A lot of our commercial focus today is in Europe because the policy framework is there in Europe, and the underlying economics of energy are very different there,” Raffi Garabedian, CEO of Electric Hydrogen, told me. The company builds electrolyzers that produce green hydrogen, a clean fuel that can replace natural gas in applications ranging from heavy industry to long-haul transport.
But because gas is so cheap in the U.S., the economics of the once-hyped “hydrogen economy” have gotten challenging as policy incentives have disappeared. With natural gas in Texas hovering around $3 per thousand cubic feet, clean hydrogen just can’t compete. But “you go to Spain, where renewable power prices are comparable to what they are in Texas, and yet natural gas is eight bucks — because it’s LNG and imported by pipeline — it’s a very different context,” Garabedian explained.
Two years ago, the EU adopted REDIII — the third revision of its Renewable Energy Directive — which raises the bloc’s binding renewable share target to 42.5% by 2030 and broadens its scope to cover more sectors, including emissions from industrial processes and buildings. It also sets new rules for hydrogen, stipulating that by 2030, at least 42% of the hydrogen used for industrial processes such as steel or chemical production must be green — that is, produced using renewable electricity — increasing to 60% by 2035.
Member countries are now working to transpose these continent-wide regulations into national law, a process Garabedian expects to be finalized by the end of this year or early next. Then, he told me, companies will aim to scale up their projects to ensure that they’re operational by the 2030 deadline. Considering construction timelines, that “brings you to next year or the year after for when we’re going to see offtakes signed at much larger volumes,” Garabedian explained. Most European green hydrogen projects are aiming to help decarbonize petroleum, petrochemical, and biofuel refining, of all things, by replacing hydrogen produced via natural gas.
But that timeline is certainly not a given. Despite its many incentives, Europe has not been immune to the rash of global hydrogen project cancellations driven by high costs and lower than expected demand. As of now, while there are plenty of clean hydrogen projects in the works, only a very small percent have secured binding offtake agreements, and many experts disagree with Garabedian’s view that such agreements are either practical or imminent. Either way, the next few years will be highly determinative.
The thermal battery company Rondo Energy is also looking to the continent for early deployment opportunities, the startup’s Chief Innovation Officer John O’Donnell told me, though it started off close to home. Just a few weeks ago, Rondo turned on its first major system at an oil field in Central California, where it replaced a natural gas-powered boiler with a battery that charges from an off-grid solar array and discharges heat directly to the facility.
Much of the company’s current project pipeline, however, is in Europe, where it’s planning to install its batteries at a chemical plant in Germany, an industrial park in Denmark, and a brewery in Portugal. One reason these countries are attractive is that their utilities and regulators have made it easier for Rondo’s system to secure electricity at wholesale prices, thus allowing the company to take advantage of off-peak renewable energy rates to charge when energy is cheapest. U.S. regulations don’t readily allow for that.
“Every single project there, we’re delivering energy at a lower cost,” O’Donnell told me. He too cited the high price of natural gas in Europe as a key competitive advantage, pointing to the crippling effect energy prices have had on the German chemical industry in particular. “There’s a slow motion apocalypse because of energy supply that’s underway,” he said.
Europe has certainly proven to be a more welcoming and productive policy environment than the U.S., particularly since May, when the Trump administration cut billions of dollars in grants for industrial decarbonization projects — including two that were supposed to incorporate Rondo’s tech. One $75 million grant was for the beverage company Diageo, which planned to install heat batteries to decarbonize its operations in Illinois and Kentucky. Another $375 million grant was for the chemicals company Eastman, which wanted to use Rondo’s batteries at a plastics recycling plant in Texas.
While nobody knew exactly what programs the Trump administration would target, John Tough, co-founder at the software-focused venture firm Energize Capital, told me he’s long understood what a second Trump presidency would mean for the sector. Even before election night, Tough noticed U.S. climate investors clamming up, and was already working to raise a $430 million fund largely backed by European limited partners. So while 90% of the capital in the firm’s first fund came from the U.S., just 40% of the capital in this latest fund does.
“The European groups — the pension funds, sovereign wealth funds, the governments — the conviction they have is so high in climate solutions that our branding message just landed better there,” Tough told me. He estimates that about a quarter to a third of the firm’s portfolio companies are based in Europe, with many generating a significant portion of their revenue from the European market.
But that doesn’t mean it was easy for Energize to convince European LPs to throw their weight behind this latest fund. Since the American market often sets the tone for the global investment atmosphere, there was understandable concern among potential participants about the performance of all climate-focused companies, Tough explained.
Ultimately however, he convinced them that “the data we’re seeing on the ground is not consistent with the rhetoric that can come from the White House.” The strong performance of Energize’s investments, he said, reveals that utility and industrial customers are very much still looking to build a more decentralized, digitized, and clean grid. “The traction of our portfolio is actually the best it’s ever been, at the exact same time that the [U.S.-based] LPs stopped focusing on the space,” Tough told me.
But Europe can’t be a panacea for all of U.S. climate tech’s woes. As many of the experts I talked to noted, while Europe provides a strong environment for trialing new tech, it often lags when it comes to scale. To be globally competitive, the companies that are turning to Europe during this period of turmoil will eventually need to bring down their costs enough to thrive in markets that lack generous incentives and mandates.
But if Europe — with its infinitely more consistent and definitively more supportive policy landscape — can serve as a test bed for demonstrating both the viability of novel climate solutions and the potential to drive down their costs, then it’s certainly time to go all in. Because for many sectors — from green hydrogen to thermal batteries and sustainable transportation fuels — the U.S. has simply given up.
Log in
To continue reading, log in to your account.
Create a Free Account
To unlock more free articles, please create a free account.
The fourth-generation gas-cooled reactor company ZettaJoule is setting up shop at an unnamed university.
The appeal of next-generation nuclear technology is simple. Unlike the vast majority of existing reactors that use water, so-called fourth-generation units use coolants such as molten salt, liquid metal, or gases that can withstand intense heat such as helium. That allows the machines to reach and maintain the high temperatures necessary to decarbonize industrial processes, which currently only fossil fuels are able to reach.
But the execution requirements of these advanced reactors are complex, making skepticism easy to understand. While the U.S., Germany, and other countries experimented with fourth-generation reactors in earlier decades, there is only one commercial unit in operation today. That’s in China, arguably the leader in advanced nuclear, which hooked up a demonstration model of a high-temperature gas-cooled reactor to its grid two years ago, and just approved building another project in September.
Then there’s Japan, which has been operating its own high-temperature gas-cooled reactor for 27 years at a government research site in Ibaraki Prefecture, about 90 minutes north of Tokyo by train. Unlike China’s design, it’s not a commercial power reactor. Also unlike China’s design, it’s coming to America.
Heatmap has learned that ZettaJoule, an American-Japanese startup led by engineers who worked on that reactor, is now coming out of stealth and laying plans to build its first plant in Texas.
For months, the company has quietly staffed up its team of American and Japanese executives, including a former U.S. Nuclear Regulatory Commission official and a high-ranking ex-administrator from the industrial giant Mitsubishi. It’s now preparing to decamp from its initial home base in Rockville, Maryland, to the Lone Star State as it prepares to announce its debut project at an as-yet-unnamed university in Texas.
“We haven’t built a nuclear reactor in many, many decades, so you have only a handful of people who experienced the full cycle from design to operations,” Mitsuo Shimofuji, ZettaJoule’s chief executive, told me. “We need to complete this before they retire.”
That’s where the company sees its advantage over rivals in the race to build the West’s first commercial high-temperature gas reactor, such as Amazon-backed X-energy or Canada’s StarCore nuclear. ZettaJoule’s chief nuclear office, Kazuhiko Kunitomi, oversaw the construction of Japan’s research reactor in the 1990s. He’s considered Japan’s leading expert in high-temperature gas reactors.
“Our chief nuclear officer and some of our engineers are the only people in the Western world who have experience of the whole cycle from design to construction to operation of a high temperature gas reactor,” Shimofuji said.
Like X-energy’s reactor, ZettaJoule’s design is a small modular reactor. With a capacity of 30 megawatts of thermal output and 12 megawatts of electricity, the ZettaJoule reactor qualifies as a microreactor, a subcategory of SMR that includes anything 20 megawatts of electricity or less. Both companies’ reactors will also run on TRISO, a special kind of enriched uranium with cladding on each pellet that makes the fuel safer and more efficient at higher temperatures.
While X-energy’s debut project that Amazon is financing in Washington State is a nearly 1-gigawatt power station made up of at least a dozen of the American startup’s 80-megawatt reactors, ZettaJoule isn’t looking to generate electricity.
The first new reactor in Texas will be a research reactor, but the company’s focus is on producing heat. The reactor already working in Japan, which produces heat, demonstrates that the design can reach 950 degrees Celsius, roughly 25% higher than the operating temperature of China’s reactor.
The potential for use in industrial applications has begun to attract corporate partners. In a letter sent Monday to Ted Garrish, the U.S. assistant secretary of energy in charge of nuclear power — a copy of which I obtained — the U.S. subsidiary of the Saudi Arabian oil goliath Aramco urged the Trump administration to support ZettaJoule, and said that it would “consider their application to our operations” as the technology matures. ZettaJoule is in talks with at least two other multinational corporations.
The first new reactor ZettaJoule builds won’t be identical to the unit in Japan, Shimofuji said.
“We are going to modernize this reactor together with the Japanese and U.S. engineering partners,” he said. “The research reactor is robust and solid, but it’s over-engineered. What we want to do is use the safety basis but to make it more economic and competitive.”
Once ZettaJoule proves its ability to build and operate a new unit in Texas, the company will start exporting the technology back to Japan. The microreactor will be its first product line.
“But in the future, we can scale up to 20 times bigger,” Shimofuji said. “We can do 600 megawatts thermal and 300 megawatts electric.”
Another benefit ZettaJoule can tap into is the sweeping deal President Donald Trump brokered with Japanese Prime Minister Sanae Takaichi in October, which included hundreds of billions of dollars for new reactors of varying sizes, including the large-scale Westinghouse AP1000. That included financing to build GE Vernova Hitachi Nuclear Energy’s 300-megawatt BWRX-300, one of the West’s leading third-generation SMRs, which uses a traditional water-cooled design.
Unlike that unit, however, ZettaJoule’s micro-reactor is not a first-of-a-kind technology, said Chris Gadomski, the lead nuclear analyst at the consultancy BloombergNEF.
“It’s operated in Japan for a long, long time,” he told me. “So that second-of-a-kind is an attractive feature. Some of these companies have never operated a reactor. This one has done that.”
A similar dynamic almost played out with large-scale reactors more than two decades ago. In the late 1990s, Japanese developers built four of GE and Hitachi’s ABWR reactor, a large-scale unit with some of the key safety features that make the AP1000 stand out compared to its first- and second-generation predecessors. In the mid 2000s, the U.S. certified the design and planned to build a pair in South Texas. But the project never materialized, and America instead put its resources into Westinghouse’s design.
But the market is different today. Electricity demand is surging in the near term from data centers and in the long term from electrification of cars and industry. The need to curb fossil fuel consumption in the face of worsening climate change is more widely accepted than ever. And China’s growing dominance over nuclear energy has rattled officials from Tokyo to Washington.
“We need to deploy this as soon as possible to not lose the experienced people in Japan and the U.S.,” Shimofuji said. “In two or three years time, we will get a construction permit ideally. We are targeting the early 2030s.”
If every company publicly holding itself to that timeline is successful, the nuclear industry will be a crowded field. But as history shows, those with the experience to actually take a reactor from paper to concrete may have an advantage.
It’s now clear that 2026 will be big for American energy, but it’s going to be incredibly tense.
Over the past 365 days, we at The Fight have closely monitored numerous conflicts over siting and permitting for renewable energy and battery storage projects. As we’ve done so, the data center boom has come into full view, igniting a tinderbox of resentment over land use, local governance and, well, lots more. The future of the U.S. economy and the energy grid may well ride on the outcomes of the very same city council and board of commissioners meetings I’ve been reporting on every day. It’s a scary yet exciting prospect.
To bring us into the new year, I wanted to try something a little different. Readers ask me all the time for advice with questions like, What should I be thinking about right now? And, How do I get this community to support my project? Or my favorite: When will people finally just shut up and let us build things? To try and answer these questions and more, I wanted to give you the top five trends in energy development (and data centers) I’ll be watching next year.
The best thing going for American renewable energy right now is the AI data center boom. But the backlash against developing these projects is spreading incredibly fast.
Do you remember last week when I told you about a national environmental group calling for data center moratoria across the country? On Wednesday, Senator Bernie Sanders called for a nationwide halt to data center construction until regulations are put in place. The next day, the Working Families Party – a progressive third party that fields candidates all over the country for all levels of government – called for its candidates to run in opposition to new data center construction.
On the other end of the political spectrum, major figures in the American right wing have become AI skeptics critical of the nascent data center buildout, including Florida Governor Ron DeSantis, Missouri Senator Josh Hawley, and former Trump adviser Steve Bannon. These figures are clearly following the signals amidst the noise; I have watched in recent months as anti-data center fervor has spread across Facebook, with local community pages and groups once focused on solar and wind projects pivoting instead to focus on data centers in development near them.
In other words, I predicted just one month ago, an anti-data center political movement is forming across the country and quickly gaining steam (ironically aided by the internet and algorithms powered by server farms).
I often hear from the clean energy sector that the data center boom will be a boon for new projects. Renewable energy is the fastest to scale and construct, the thinking goes, and therefore will be the quickest, easiest, and most cost effective way to meet the projected spike in energy demand.
I’m not convinced yet that this line of thinking is correct. But I’m definitely sure that no matter the fuel type, we can expect a lot more transmission development, and nothing sparks a land use fight more easily than new wires.
Past is prologue here. One must look no further than the years-long fight over the Piedmont Reliability Project, a proposed line that would connect a nuclear power plant in Pennsylvania to data centers in Virginia by crossing a large swathe of Maryland agricultural land. I’ve been covering it closely since we put the project in our inaugural list of the most at-risk projects, and the conflict is now a clear blueprint.
In Wisconsin, a billion-dollar transmission project is proving this thesis true. I highly recommend readers pay close attention to Port Washington, where the release of fresh transmission line routes for a massive new data center this week has aided an effort to recall the city’s mayor for supporting the project. And this isn’t even an interstate project like Piedmont.
While I may not be sure of the renewable energy sector’s longer-term benefits from data center development, I’m far more confident that this Big Tech land use backlash is hitting projects right now.
The short-term issue for renewables developers is that opponents of data centers use arguments and tactics similar to those deployed by anti-solar and anti-wind advocates. Everyone fighting data centers is talking about ending development on farmland, avoiding changes to property values, stopping excess noise and water use, and halting irreparable changes to their ways of life.
Only one factor distinguishes data center fights from renewable energy fights: building the former potentially raises energy bills, while the latter will lower energy costs.
I do fear that as data center fights intensify nationwide, communities will not ban or hyper-regulate the server farms in particular, but rather will pass general bans that also block the energy projects that could potentially power them. Rural counties are already enacting moratoria on solar and wind in tandem with data centers – this is not new. But the problem will worsen as conflicts spread, and it will be incumbent upon the myriad environmentalists boosting data center opponents to not accidentally aid those fighting zero-carbon energy.
This week, the Bureau of Land Management approved its first solar project in months: the Libra facility in Nevada. When this happened, I received a flood of enthusiastic and optimistic emails and texts from sources.
We do not yet know whether the Libra approval is a signal of a thaw inside the Trump administration. The Interior Department’s freeze on renewables permitting decisions continues mostly unabated, and I have seen nothing to indicate that more decisions like this are coming down the pike. What we do know is that ahead of a difficult midterm election, the Trump administration faces outsized pressure to do more to address “affordability,” Democrats plan to go after Republicans for effectively repealing the Inflation Reduction Act and halting permits for solar and wind projects, and there’s a grand bargain to be made in Congress over permitting reform that rides on an end to the permitting freeze.
I anticipate that ahead of the election and further permitting talks in Congress, the Trump administration will mildly ease its chokehold on solar and wind permits because that is the most logical option in front of them. I do not think this will change the circumstances for more than a small handful of projects sited on federal lands that were already deep in the permitting process when Trump took power.
It’s impossible to conclude a conversation about next year’s project fights without ending on the theme that defined 2025: battery fire fears are ablaze, and they’ll only intensify as data centers demand excess energy storage capacity.
The January Moss Landing fire incident was a defining moment for an energy sector struggling to grapple with the effects of the Internet age. Despite bearing little resemblance to the litany of BESS proposals across the country, that one hunk of burning battery wreckage in California inspired countless communities nationwide to ban new battery storage outright.
There is no sign this trend will end any time soon. I expect data centers to only accelerate these concerns, as these facilities can also catch fire in ways that are challenging to address.
Plus a resolution for Vineyard Wind and more of the week’s big renewables fights.
1. Hopkins County, Texas – A Dallas-area data center fight pitting developer Vistra against Texas attorney general Ken Paxton has exploded into a full-blown political controversy as the power company now argues the project’s developer had an improper romance with a city official for the host community.
2. La Plata County, Colorado – This county has just voted to extend its moratorium on battery energy storage facilities over fire fears.
3. Dane County, Wisconsin – The city of Madison appears poised to ban data centers for at least a year.
4. Goodhue County, Minnesota – The Minnesota Center for Environmental Advocacy, a large environmentalist organization in the state, is suing to block a data center project in the small city of Pine Island.
5. Hall County, Georgia – A data center has been stopped down South, at least for now.
6. Dukes County, Massachusetts – The fight between Vineyard Wind and the town of Nantucket seems to be over.