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Last time around they were bulwarks for climate action. This time is different.

This story is part of a Heatmap series on the “green freeze” under Trump.
Following Donald Trump’s election in November, climate advocates self-soothed with the conviction that cities and states would continue carrying the banner in the absence of federal climate action. That’s what happened during Trump’s first presidency, after all. When he pulled the U.S. out of the Paris Agreement in 2017, hundreds of local governments declared they were “still in” on climate, and a new wave of state and local climate policies swept the country.
By the time Biden stepped into the White House four years later, many of these communities had climate plans either in place or in progress. When his administration passed the Infrastructure Investment and Jobs Act and the Inflation Reduction Act, setting aside billions of dollars for emissions reduction and climate adaptation projects, they were in a prime position to apply for funding. By November 2024, with most of that money doled out, it was easy to imagine how climate-forward cities could forge ahead, seeded by grants, regardless of what Trump did.
Except then Trump did the thing that many assumed he would not — because he legally could not — do. He froze and is now trying to claw back congressionally appropriated, contractually obligated funds. And in so doing, he has thrown the prospects for cities as a last line of defense into question.
“In this administration, it’s a lot more chaotic,” Barbara Buffaloe, the mayor of Columbia, Missouri, told me. “There’s a lot more happening than I feel like there was in 2017, right at the get-go. Nobody knows what the universe is right now.”
Columbia was among those that joined the “still in” campaign in 2017. It adopted emissions reduction goals in 2018, and passed a climate action and adaptation plan in 2019. The Biden administration awarded the city more than $28 million across three separate federal grants to build electric vehicle charging stations, make electrical upgrades that would allow it to charge electric buses, and redesign its central business loop to be more walkable, bikeable, and safe.
All three of those grants are now up in the air. Buffaloe said she was told by state partners that the $2.1 million business loop planning grant from the Department of Transportation’s Reconnecting Communities program was paused. Columbia was the only city in Missouri to get a Charging and Fueling Infrastructure Grant from the DOT, with the $3.6 million supposed to help pay for EV chargers at the library and the airport. The city is moving ahead with initial activities like environmental reviews and preliminary engineering in the hope that funds to build the actual stations will be unfrozen by the time it’s ready to break ground. Regarding the $23 million bus infrastructure grant, part of a separate DOT program, she said the city hasn’t heard from its grant managers in about a month.
“We don’t know whether or not to continue on the projects,” she told me. “It’s that feeling of uncertainty and trepidation that is causing us the most anxiety. Our construction window is not year-round in Columbia, and because we’re a public institution, it takes a lot longer for us to put out bids and to start projects. We need to know if we have this budget or not.”
It’s not just the funding freeze leaving Columbia in a holding pattern. The city has a municipally-owned electric utility that had been looking to take advantage of “direct pay,” an option for nonprofit entities with no tax liability to collect federal renewable energy incentives as direct subsidies, to help it build more solar farms. But now Republicans in Congress are considering eliminating direct pay.
The funding freeze has put a lot of cities in this position where time-sensitive decisions are stalled. Hundreds of communities were awarded grants from the U.S. Department of Agriculture program to fund tree-planting for carbon mitigation and shade creation, for example. Some recipients have been told their grants were canceled altogether, others are still in the dark — their federal grant managers have been fired and no one is responding to their emails.
“They’re kind of at this point of, hey, do we put in the order for trees? We need to plant at certain times of the year,” Laura Jay, the deputy director of Climate Mayors, a national network of mayors working to address climate change, told me. “For a lot of these cities and programs, there’s key decisions that they have to be making, and when there’s uncertainty around it, it puts the city at a huge risk.” There’s financial risk, she said, in terms of spending money without knowing if it will get reimbursed, but also planning risks. A number of cities were awarded grants to purchase electric school buses, for example, and they need to make sure they are going to have enough to get kids to school.
As a larger, wealthier city, Columbia is in a better position than others. It collects revenue through a capital improvement tax that Buffaloe said could be used for climate projects. “We’ll do as much as we can,” she told me.
But in more rural areas, these grants represented a rare opportunity to modernize and build more equitable access to infrastructure.
“We’re in Southeast Ohio, which traditionally has been left behind when it comes to larger infrastructure projects,” Andrew Chiki, the deputy service-safety director in Athens, Ohio, told me. “We don’t have an interstate highway.”
Chiki helped lead a regional effort to apply for a Charging and Fueling Infrastructure Grant, the same program Columbia won funding from that is now frozen. He and his partners were awarded $12.5 million to build a corridor of electric vehicle chargers in 16 communities between Athens and Dayton. “One of our attempts with this was to answer the question, if EV adoption takes off the way that we are envisioning, how do we allow an on-ramp for communities that are already disadvantaged to be able to adopt?”
Chiki said they were still waiting to hear whether they could move forward with the project or not. Athens passed a resolution declaring a climate emergency in 2020, and adopted a target to reduce emissions by 50% over 10 years. The city has made some strides, Chiki said, by making buildings more energy efficient and installing solar on city-owned facilities. “We are still committed to doing as much as we can,” he told me.
But if the EV charging grant falls through, the smaller villages and towns between Athens and Dayton that don’t have the staff resources or capacity to apply for these types of grants will lose out, he said. “We would probably look at other types of funding sources, but it would make it incredibly difficult and not be nearly as broad as we want.”
There are some pots of money for local climate projects that have flown under the Trump administration’s radar. Last year, the South Florida ClimateReady Tech Hub, a consortium of local governments, schools, labor groups, and companies working to accelerate the development of climate technologies, won a $19.5 million grant from the Department of Commerce’s Economic Development Administration. The money came from the Biden-era CHIPS and Science Act, a law that Trump is pushing Congress to scrap but that Republicans have thus far defended. Tech Hub will use the funds to scale low-emissions cement that can be used for adaptation projects, energy efficiency, and workforce development, among other things.
Francesca Covey, the chief innovation and economic development officer for Miami-Dade County and regional innovation officer for the Tech Hub, told me the group has continued to have quarterly check-ins with federal partners and haven’t gotten any signal that the funding is in jeopardy. “It’s really been more business as usual,” she said. Covey also mentioned two pilot projects to build artificial reefs and seawalls in the area that had funding from the Department of Defense and were moving forward.
Still, the Tech Hub has adjusted its language to stay competitive in the new political environment. The group changed its name to the Risk and Resilience Tech Hub two weeks ago, Covey told me. “We wanted to underscore the economic imperative of the work,” she said, when I asked what motivated the name change. “Right now we’re finding that where we are getting the best traction with the private and public community is around risk. We wanted to make sure we were couching it in the right way.”
Ithaca, New York, on the other hand, which passed its own Green New Deal in 2019, is committed to its climate and equity-centric messaging. “We are not intending to change the narrative around what we’re doing,” Rebecca Evans, the city’s sustainability director, told me. “It’s still clean energy, and it is still because climate change is a threat to human existence. We are still going to prioritize black and brown populations and populations that experience poverty at various levels because they are most vulnerable to climate change.”
About 85% of Evans’ Green New Deal budget comes from federal sources, and at first she worried that was all at risk. In 2022 and 2023, Ithaca had received funding from what’s called “congressional directed spending,” or “earmarks,” in two federal appropriations bills, meaning that New York state lawmakers fought to get money set aside for the city. The first grant, worth $1 million, was for a hydrogen production and fueling project. The second, worth $1.5 million, was for a wide-ranging program to decarbonize the school system and enhance a local workforce development program to include new energy efficiency certifications. Both programs included explicit diversity, equity, and inclusion-related objectives, so Evans assumed they would be targeted by the Trump administration.
But on Tuesday, she was told by federal partners on the hydrogen grant that congressionally directed spending was not subject to Trump’s executive orders and got the greenlight to move into the next phase. Evans still hasn’t heard back from her federal partners on the second grant, but she’s more hopeful now that it will move forward.
Back when I first spoke to Evans, when things were more up in the air, she told me she worried that the Trump administration’s actions would cause advocates to lose hope. “I think anger can be a positive thing, but it’s the loss of hope, even if it’s marginal, that is truly, truly dangerous to this movement.”
Perhaps that’s why Evans, like all of the other local leaders I spoke with, projected optimism when I asked what they could accomplish over the next four years without federal support. She was already trying to find the money elsewhere, she said. “We can’t do all of the amazing things that we wanted to do, but we can still make progress,” she said.
“Cities are incredibly nimble and innovative,” Jay, of Climate Mayors, told me. “I think that they’re eager to and committed to keeping the work going. What that looks like, I think, is hard to figure out right now, because everyone’s kind of caught in the chaos of trying to figure out if they still have this funding or not. But they’re fully committed to making sure that this work is continuing.”
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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.