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Geopolitics, the heightened importance of climate change, and the sheer size of the conference have transformed the event into something that it was never meant to be.

It didn’t attract a lot of attention, but for a few months, it looked like the United Nations climate process might break down.
There, process is substance: One of the most important acts every year is the selection of the next country to run the Conference of the Parties to the United Nations Framework Convention on Climate Change, or COP. This distinction normally rotates among the UN’s five regional country groups; next year, a country in the “Eastern Europe” group is due to host. All the members of a group must unanimously agree on which country will get to host.
This is a highly contingent way to decide who gets to host a climate conference. Really, the entire schema of UN regional groups represents a hangover of Cold War geopolitics that is now indefinitely unchangeable. (The “Western Europe” group is essentially the early members of NATO; it includes such notably non-western-European countries as Turkey, the United States, and — hilariously — Australia.)
The “Eastern Europe” group, meanwhile, amounts to more or less the former members of the Warsaw Pact. For obvious reasons, these countries cannot agree on a consensus choice in 2023. Russia, the group’s largest member, was not amenable to holding the COP in any eastern Europe NATO member state, such as Poland, Latvia, or Finland. The eastern European NATO members — as well as Ukraine, which is also in the UN regional group — were similarly opposed to holding the COP in Russia.
That meant that attention focused on the group’s countries in the Caucasus, at the edge of central Asia: Georgia, Azerbaijan, and Armenia. Yet difficulties presented themselves here too. Azerbaijan successfully seized an Armenian exclave earlier this year, evicting up to 120,000 Armenians as part of a campaign described as ethnic cleansing. Armenia blocked any Azeri bid to host the COP.
For the first time in the UN Framework Convention on Climate Change’s history, no country would have been able to lead COP the following year. Geopolitics had seemingly broken the consensus mechanism that makes the climate conference work.
This amounted to more than just a deficiency in party planning. It would have forced Bonn, Germany — the home of the UNFCC’s permanent headquarters — to host COP29, a kind of “break in case of emergency” default option. And it would have allowed the United Arab Emirates, a petrostate that has reportedly used the COP to make oil deals, to retain the conference presidency for at least another year.
That didn’t happen. Late last week, Armenia lifted its block of Azerbaijan’s bid, and the two countries mutually released prisoners in a gesture of good will. (Their rapprochement happened suspiciously close to President Vladimir Putin’s visit to the U.A.E.) Next year’s COP will seemingly happen in Baku, the Azeri capital.
But just because the COP process didn’t break doesn’t mean that it’s not being stretched. All is not well with the COP. During this year’s conference, a picture emerged of a COP being tested by a more rivalrous, conflict-prone world. Geopolitics, the heightened importance of climate change, and the sheer size of the conference have transformed the event into something that it was never meant to be.
This year, more than 100,000 people attended the COP. It was held at Dubai’s opulent Expo City, the Disney World-style convention campus initially built for the 2020 World Expo, the modern successor to World’s Fairs. Hundreds of nonprofit groups and companies, as well as more than 190 countries, ran public pavilions that advertised their climate accomplishments and views on decarbonization. Negotiators divided into different blocs: China and the United States, oil-producing states and small island nations, the West and the rest.
It wasn’t always like this. When the first COP was held in Berlin in 1995, the world was in a very different era, Lee Beck, the senior director for Europe and the Middle East at the Clean Air Task Force, told me. It was “the peak of multilateralism, followed by relative geopolitical stability and peace,” she said. The United States and the broader West set the agenda for global events.
“In the last two years — others would say the writing was on the wall as early as 2014 — geopolitical fragmentation really is visible,” she said. “You’re really pushing the limits of multilateralism at this one. One of the cracks is we’re unable to agree where the COP even will be.”
But geopolitics are not the only force stretching COP to the limit. Another is the sheer size of the event itself.
There used to be “big COPs” and “small COPs”: COP21, the 2015 meeting where the Paris Agreement was finalized, was a “big COP,” but the following year’s conference in Marrakech, Morocco, was a fairly minor one. Even COP21 was less than half the size of this year’s COP. And in one possible read, this year should have been a smaller COP — the biggest to-dos were formally launching the Loss and Damage fund and writing the Global Stocktake report, a kind of report card on the world’s climate progress (or lack thereof).
But small COPs don’t seem to happen any more. Since the pandemic ended and COP26 took place in Glasgow, Scotland, COPs have swollen in size, creating the age of the new “mega-COP.” More than 100,000 people attended the conference this year, making it by far the biggest COP ever. It was more than twice the size of last year’s confab in Sharm al-Sheikh, Egypt, which was previously the biggest COP ever. Most of those attendees had nothing to do with the negotiations ostensibly at the center of the conference — they were investors, technologists, scholars, scientists, or experts — and instead made up a de facto global trade show on climate solutions.
COP is now so big and climate is now so important that even the lack of news about the conference can generate news. When President Joe Biden declined to attend this year’s conference, The New York Times push-alerted it.
But there are possibilities that could improve the situation. One of them might be that COP simply becomes so unmanageable that it has to scale back. Few cities have the spare capacity to house an extra 100,000 visitors for 12 days. New York City, for instance, only has about 123,000 hotel rooms total. If COP were to keep growing, the problem would only get harder. When 150,000 people descended on San Francisco for Salesforce’s annual conference in 2015, the company docked a cruise ship in the bay to provide an extra thousand rooms.
There are solutions, Beck said. She noted this was the first year that every continent had held its own Climate Week: a smaller event focusing on more region-specific decarbonization challenges. This COP has also seen the emergence of country coalitions that rally around different issues or approaches. The set of countries that backed a pledge to triple renewable capacity, for instance, is different from the smaller coalition that wanted to triple nuclear capacity. These smaller, more sector-specific coalitions may have more ability to actually decarbonize and address climate change, she said.
For all these challenges, perhaps the biggest miracle is that the UNFCC process works at all, Eve Tamme, a former climate negotiator for the European Commission, told me.
“The UNFCCC process is based on consensus between almost 200 countries. Judging based on the complexity of the issue at hand and the divergence of views among the countries, it seems impossible that such a process could deliver anything at all,” she said. Even when you follow the negotiations closely, it may seem like there’s barely any movement at all, she said.
“But then again, we got the Kyoto Protocol,” she said. “And we got the Paris Agreement. So while it may look broken in the short term, somehow this dysfunctional process can still deliver.”
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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.