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At least in the short term, developers looking to build quickly have just a few sites to choose from.

Donald Trump aims to spur the biggest nuclear development boom this side of the 21st century. The big question: Will it work?
Trump signed a fleet of executive orders on Friday seeking to quadruple U.S. nuclear capacity, expanding generation from 100 gigawatts today to 400 gigawatts by 2050. To that end, he also set a near-term goal to start construction on 10 new conventional reactors by 2030 — that is, within the next five years.
The interim goal on its own is, on its face, extremely ambitious. There have only been three reactors completed this century: Watts Bar Unit 2, which had a complicated, multi-decade development timeline and finally entered operation in 2016; and Vogtle Units 3 and 4, which started construction in 2009 and came online in 2023 and 2024, respectively.
Part of the reason those three facilities took so long is the convoluted permitting process nuclear hopefuls must navigate. (Chris Gadomski, lead nuclear analyst at BloombergNEF, called it a “gauntlet.”) It can take almost a decade for a new nuclear project to receive what’s called a “combined operating license” from the Nuclear Regulatory Commission, the federal body charged with overseeing civilian nuclear technology and power plant operations. The orders seek to simplify and accelerate the NRC’s licensing procedure, giving the body 18 months to issue new rules and guidance designed to shorten the timeline for processing new applications to 18 months at the longest, and to reduce the timeline for considering continuing operations licenses to just a year.
In the even nearer term, however, “If you want to build nuclear fast in this country, you would go to sites that are already licensed or already have infrastructure,” Brett Rampal, senior director of nuclear and power strategy at Veriten, told Heatmap. Many of these sites received NRC approval in the 2000 and 2010s but languished due to poor market conditions (the rise of cheap natural gas), the nuclear industry’s own instability (Westinghouse, a major contractor, went bankrupt in 2017), or some combination of both.
But even then the process is complicated, as Adam Stein, director of the nuclear energy innovation program of the Breakthrough Institute, told Heatmap. “Several of the sites with licenses for AP1000 [reactors] theoretically could start construction fairly quickly without major license changes,” he said. “However, that’s not likely to happen.”
The AP1000 is a 1-gigawatt pressurized water reactor made by Westinghouse, and it’s currently pumping out electrons at the Vogtle site in Georgia. There are hopes that it can become a standard design that is built over and over again at scale.
But even on an already-licensed site, any new project would be starting from scratch with its supply chain and workforce. And just because the site has a license now doesn’t mean its developers are done with the licensing process. “The licenses for those sites were issued for a design that was essentially what Vogtle started out as,” Stein explained. Vogtle subsequently underwent almost 200 license amendments, and it’s probable that a new build would want to incorporate many of these design changes into their license, as well. “That takes time,” Stein said.
Duke Energy, which serves over 8 million customers largely in the Southeast, has an active combined operating license for AP1000s in South Carolina. The company told South Carolina utilities regulators in April that its W.S. Lee site in the state “offers the best opportunity to deploy large light-water reactors in the Carolinas” — but that, at least at the time, “the conceptual deployment timeline from when a definitive “go forward” decision is made is about 13 to 14 years.” (Emphasis mine.)
The spokesperson noted that the combined operating license at the site “gives us optionality in the future to construct and operate two Westinghouse AP1000 units at the site,” and that “we will have an opportunity to update state Commissions in the Carolinas on our progress regarding the potential for future new nuclear investments later this year.” The spokesperson gave no specific indication that the company’s timeline for building a new plant had changed due to the executive orders.
Duke also terminated a combined operating license for a Florida site in 2018. “We currently have no nuclear planned for Duke Energy Florida per our 10-year site plan, although advanced nuclear overall is still a longer-term option,” the spokesperson said.
What about “advanced nuclear”? Several advanced nuclear projects have either applied for or gotten construction permits. Kairos Power received construction permits for demonstration reactors, while X-Energy, the Tennessee Valley Authority, and TerraPower have applied for construction permits for advanced reactors. These companies are pursuing a different pathway than the combined operating license application process and will need to apply for operation licenses as well. Two advanced reactor designs by NuScale have received approval from the NRC to date, including one that’s fresh as of Thursday, but there are no current plans to deploy either anywhere.
That hasn’t dampened excitement about advanced nuclear, including on sites with licenses for larger reactors. Virginia utility Dominion Energy is looking at new nuclear development at its North Anna site, which is licensed for a GE-Hitachi Economic Simplified Boiling Water Reactor, a large reactor which has received an NRC design certification but has not yet been deployed. But instead of conventional reactors, Dominion has a memorandum of understanding with Amazon to explore small modular reactor development.
Duke Energy, meanwhile, told Heatmap that the company “strongly supports the advancement and deployment of new nuclear technologies, including large reactors and small modular reactors, to meet the growing energy needs of our customers.”
There is one nuclear company that greeted the executive orders with fulsome excitement: The Nuclear Company. Unlike other newer entrants in the space, The Nuclear Company — which raised a $51 million Series A in April — aims to build six conventional reactors with “proven, licensed technology.”
“I feel like I’m Jack and Rose from the Titanic and my arms are out. I feel like we're flying finally,” Juliann Edwards, chief development officer at The Nuclear Company, told Heatmap. “I feel like we’ve been unleashed through these executive orders.”
As difficult and costly as it was to bring the new Vogtle reactors online, the process jumpstarted the previously dormant domestic nuclear industry. And The Nuclear Company thinks it would be a shame for this emergent expertise to go to waste.
The Nuclear Company has identified the first site where it plans to build, but it’s not yet public, Edwards told Heatmap, though she pointed to states such as Florida, South Carolina, North Carolina, Tennessee, and Alabama as places where the company could “hit the ground running,” given that they already have the necessary licenses in place.
And yet The Nuclear Company does not, itself, intend to design or operate these reactors. Instead it would run licensing, permitting, and construction, while also potentially serving as the facility’s long-term owner, depending on the regulatory structure of the local utilities and grid operators.
That still leaves the question of whether the market will end up valuing the power produced from all these new reactors at a level that will keep an operator in business. That’s not a given. In the 2010s, nuclear capacity fell in part because the market preferred natural gas to nuclear, since it was cheaper and could respond quickly to varying demand. “Why would you build a nuclear reactor when you got very cheap natural gas?” BNEF’s Gadomski, told Heatmap.
But the prospects of an artificial-intelligence-fueled data center boom, as well as the broader electrification of the economy, has begun to change this calculus, as utilities look to catch up to quickly rising electricity demand for the first time this century.
"I’m hoping that this environment doesn’t create too much uncertainty for folks, and I’m hoping it sends signals to get things going and that things will hopefully work out,” Rampal said. “I love my utilities, but they are 14 times bitten, 97 times shy.”
Editor’s note: This story has been updated to reflect that Duke Energy terminated its Florida license.
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Flames have erupted in the “Blue Zone” at the United Nations Climate Conference in Brazil.
A literal fire has erupted in the middle of the United Nations conference devoted to stopping the planet from burning.
The timing couldn’t be worse. Today is the second to last day of the annual climate meeting known as COP30, taking place on the edge of the Amazon rainforest in Belém, Brazil. Delegates are in the midst of heated negotiations over a final decision text on the points of agreement this session.
A number of big questions remain up in the air, including how countries will address the fact that their national plans to cut emissions will fail to keep warming “well under 2 degrees Celsius,” the target they supported in the 2015 Paris Agreement. They are striving to reach agreement on a list of “indicators,” or metrics by which to measure progress on adaptation. Brazil has led a push for the conference to mandate the creation of a global roadmap off of fossil fuels. Some 80 countries support the idea, but it’s still highly uncertain whether or how it will make its way into the final text.
Just after 2:00 p.m. Belém time, 12 p.m. Eastern, I was in the middle of arranging an interview with a source at the conference when I got the following message:
“We've been evacuated due to a fire- not exactly sure how the day is going to continue.”
The fire is in the conference’s “Blue Zone,” an area restricted to delegates, world leaders, accredited media, and officially designated “observers” of the negotiations. This is where all of the official negotiations, side events, and meetings take place, as opposed to the “Green Zone,” which is open to the public, and houses pavilions and events for non-governmental organizations, business groups, and civil society groups.
It is not yet clear what the cause of the fire was or how it will affect the home sprint of the conference.
Outside of the venue, a light rain was falling.
On Turkey’s COP31 win, data center dangers, and Michigan’s anti-nuclear hail mary
Current conditions: A powerful storm system is bringing heavy rain and flash flooding from Texas to Missouri for the next few days • An Arctic chill is sweeping over Western Europe, bringing heavy snow to Denmark, southern Sweden, and northern Germany • A cold snap in East Asia has plunged Seoul and Beijing into freezing temperatures.

The Trump administration on Wednesday proposed significant new limits on federal protection under the Endangered Species Act. A series of four tweaked rules would reset how the bedrock environmental law to prevent animal and plant extinctions could be used to block oil drilling, logging, and mining in habitats for endangered wildlife, The New York Times reported. Among the most contentious is a proposal to allow the government to consider economic factors before determining whether to list a species as endangered. Another change would raise the bar for enacting protections based on predicted future threats such as climate change. “This administration is restoring the Endangered Species Act to its original intent, protecting species through clear, consistent and lawful standards that also respect the livelihoods of Americans who depend on our land and resources,” Secretary of the Interior Doug Burgum said in a statement.
In Congress, meanwhile, bipartisan reforms to make federal permitting easier are advancing. Representative Scott Peters, the Democrat in charge of the permitting negotiations, called the SPEED Act introduced by Representative Bruce Westerman, the Republican chairman of the Natural Resources Committee, a “huge step forward,” according to a post on X from Politico reporter Josh Siegel. But Peters hinted that getting the legislation to the finish line would require the executive branch to provide “permit certainty,” a thinly-veiled reference to Democrats’ demand that the Trump administration ease off its so-called “total war on wind” turbines.
In World Cup soccer, Turkey hasn’t faced Australia in more than a decade. But the two countries went head to head in the competition to host next year’s United Nations climate summit, COP31. Turkey won, Bloomberg reported last night. Australia’s defeat is a blow not just to Canberra but to those who had hoped a summit Down Under would set the stage for an “island COP.” The pre-conference leaders’ gathering is set to take place on an as-yet-unnamed Pacific island, which had raised hopes that the next confab could put fresh emphasis on the concerns of low-lying nations facing sea-level rise.
More than a dozen states where data centers are popping up could face electric power emergencies under extreme conditions this winter, a grid security watchdog warned this week, E&E News reported. The North American Electric Reliability Corporation listed New England, the Carolinas, most of Texas, and the Pacific Northwest among the most threatened regions. If those emergencies take place, the grid operators would need to import more electricity from other regions and seek voluntary power cutbacks from customers before resorting to rotating blackouts.
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The United States is on the cusp of restarting a permanently shuttered atomic power plant for the first time. But anti-nuclear groups are making a last-ditch effort to block the revival. In a complaint filed Monday in the U.S. District court for the Western District of Michigan, a trio of activist organizations — Beyond Nuclear, Don’t Waste Michigan, and Michigan Safe Energy Future — argued that the plant should never have received regulatory approval for a restart. As I wrote in this newsletter at the time, the Nuclear Regulatory Commission granted plant owner Holtec International permission to go ahead with the restoration in July. Last month, the company — best known for manufacturing waste storage vessels and decommissioning defunct plants — received a shipment of fuel for the single-reactor station, as I reported here. While the opponents are asking the federal judge to intervene, state lawmakers in Michigan are considering new subsidies for nuclear power, Bridge Michigan reported.
Further north along Michigan’s western coastline, a coal-fired power plant set to close down in May got another extension from the Trump administration. In an order signed Tuesday, Secretary of Energy Chris Wright renewed his direction to utility Consumers Energy to hold off on shutting down the facility, which the administration deemed necessary to stave off blackouts. The latest order, Michigan Advance noted, extends until February 17, 2026. President Donald Trump’s efforts to prop up the coal industry haven’t gone so well elsewhere. As Heatmap’s Matthew Zeitlin reported last week, coal-fired stations keep breaking down, with equipment breaking at more than twice the rate of wind turbines.
Matthew had another timely story out yesterday: Members of the PJM Interconnection’s voting base of advisers met Wednesday to consider a dozen different proposals for how to bring more data centers online put forward by data center companies, transmission developers, utilities, state lawmakers, advocates, PJM’s market monitor, and PJM itself. None passed. “There was no winner here,” PJM chief executive Manu Asthana told the meeting following the announcement of the vote tallies. There was, however, “a lot of information in these votes,” he added. “We’re going to study them closely.” The grid operator still aims to get something to federal regulators by the end of the year.
Here’s a gruesome protocol that apparently exists when a toothed whale washes up. Federal officials arrived on Nantucket on Wednesday afternoon to remove a beached sperm whale’s jaw. Per the Nantucket Current: “This is being done to prevent any theft of its teeth, which are illegal to take and possess. The Environmental Police will take the jaw off-island.”
Members of the nation’s largest grid couldn’t agree on a recommendation for how to deal with the surge of incoming demand.
The members of PJM Interconnection, the country’s largest electricity market, held an advisory vote Wednesday to help decide how the grid operator should handle the tidal wave of incoming demand from data centers. Twelve proposals were put forward by data center companies, transmission companies, power companies, utilities, state legislators, advocates, PJM’s market monitor, and PJM itself.
None of them passed.
“There was no winner here,” PJM chief executive Manu Asthana told the meeting following the announcement of the vote tallies. There was, however, “a lot of information in these votes,” he added. “We’re going to study them closely.”
The PJM board was always going to make the final decision on what it would submit to federal regulators, and will try to get something to the Federal Energy Regulatory Commission by the end of the year, Asthana said — just before he plans to step down as CEO.
“PJM opened this conversation about the integration of large loads and greatly appreciates our stakeholders for their contributions to this effort. The stakeholder process produced many thoughtful proposals, some of which were introduced late in the process and require additional development,” a PJM spokesperson said in a statement. “This vote is advisory to PJM’s independent Board. The Board can and does expect to act on large load additions to the system and will make its decision known in the next few weeks.”
The surge in data center development — actual and planned — has thrown the 13-state PJM Interconnection into a crisis, with utility bills rising across the network due to the billions of dollars in payments required to cover the additional costs.
Those rising bills have led to cries of frustration from across the PJM member states — and from inside the house.
“The current supply of capacity in PJM is not adequate to meet the demand from large data center loads and will not be adequate in the foreseeable future,” PJM’s independent market monitor wrote in a memo earlier this month. “Customers are already bearing billions of dollars in higher costs as a direct result of existing and forecast data center load,” it said in a quarterly report released just a few days letter, pegging the added charges to ensure that generators will be available in times of grid stress due to data center development at over $16 billion.
PJM’s initial proposal to deal with the data center swell would have created a category for new large sources of demand on the system to interconnect without the backing of capacity; in return, they’d agree to have their power supply curtailed when demand got too high. The proposal provoked outrage from just about everyone involved in PJM, including data center developers and analysts who were open to flexibility in general, who said that the grid operator was overstepping its responsibilities.
PJM’s subsequent proposal would allow for voluntary participation in a curtailment program, but was lambasted by environmental groups like Evergreen Collaborative for not having “any semblance of ambition.” PJM’s own market monitor said that voluntary schemes to curtail power “are not equivalent to new generation,” and that instead data centers should “be required to bring their own new generation” — essentially to match their own demand with new supply.
A coalition of environmental groups, including the Natural Resources Defence Council and state legislators in PJM, said in their proposal that data centers should be required to bring their own capacity — crucially counting demand response (being paid to curtail power) as a source of capacity.
“The growth of data centers is colliding with the reality of the power grid,” Tom Rutigliano, who works on grid issues for the Natural Resources Defense Council, said in a statement. “PJM members weren’t able to see past their commercial interests and solve a critical reliability threat. Now the board will need to stand up and make some hard decisions.”
Those decisions will come without any consensus from members about what to do next.
“Just because none of these passed doesn’t mean that the board will not act,” David Mills, the chairman of PJM’s board of managers, said at the conclusion of the meeting. “We will make our best efforts to put something together that will address the issues.”