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On thorium, South Carolina nuclear, and green steel

Current conditions: Severe thunderstorms are drenching the American South from New Orleans to Virginia Beach • Mount Mayon has forced thousands to evacuate within the Philippines’ Bicol peninsula • Temperatures in Denver are poised to plunge from about 75 degrees Fahrenheit yesterday to 39 degrees today with a chance of snow.

The North American Electric Reliability Corporation, the quasi-governmental watchdog that monitors the health of the power grids that span the United States and Canada, has issued a rare Level 3 warning. The alert, announced Monday, marks only the third time NERC has put out a notice with that degree of severity in its 58-year history. The warning comes on the heels of reports that data centers abruptly went offline in Virginia and Texas, prompting concerns of potential blackouts. “Computational loads, such as data centers, could increase exponentially in the next four years,” NERC said in a draft of the alert, adding that “significant risks” to the power network “need to be addressed through immediate industry action.” Lee Shaver, a senior energy analyst at the Union of Concerned Scientists, told E&E News that NERC’s action was a “big deal.”
The California Energy Commission has issued an administrative investigative subpoena to Golden State Wind seeking documents and information related to the company’s recent deal with the U.S. Department of the Interior to take a payout in exchange for abandoning its offshore wind lease. Last week, the developer announced a deal to scrap its lease in the Morro Bay Wind Energy off the central California coast for $120 million as part of the Trump administration’s efforts to kill off an industry he failed to destroy through regulatory fiat alone. The facility was supposed to be California’s first offshore wind farm, and planned to use floating turbines to account for the steep continental shelf dropoff on the nation’s Pacific Coast. Now the administration’s latest “shady deal” is drawing scrutiny from state regulators. “The Trump Administration is recklessly spending billions of taxpayer dollars on backroom deals that would turn back the clock on innovation,” David Hochschild, the chairman of the California Energy Commission, said in a statement. “Californians deserve immediate answers about the nature of this payout. Taxpayer dollars should be used to build a sustainable energy future, not to pay to make projects disappear.”
Meanwhile, California’s grid operator has switched on a new regional electricity market as part of what E&E News called “a major milestone in the yearslong push to expand energy trading” across the American West. The California Independent System Operator launched its new Extended Day-Ahead Market early Friday morning, allowing California’s investor-owned utilities and the Northwestern giant PacifiCorp, whose coverage area spans two million customers across six states, to trade electricity on the regional market for the first time. “The West is rich with a diverse mix of renewable resources, and this market will capture their potential,” Michael Colvin, director of the California energy program at the Environmental Defense Fund, said in a statement. “Through better sharing of cheap, clean energy beyond state borders, the market will cut household bills, reduce reliance on expensive, polluting fossil plants and build a grid that's bigger than any single extreme weather event.”
For nearly as long as there have been nuclear power plants, there have been thorium bulls insisting the metal is a better fuel than uranium. In most places, the thorium dream faded long ago as ample new sources of uranium were discovered. But China revived the thorium race in 2023, when its experimental molten salt reactor powered by the metal split atoms for the first time. Now the only serious contender in the entire West looking to commercialize thorium is a Chicago-based company taking an unusual approach. Rather than creating a whole new kind of reactor to run on thorium, Clean Core Thorium Energy has designed fuel assemblies that blend thorium with a special kind of uranium fuel and work in existing reactors without any modifications. Clean Core’s technology only works, at least for now, in pressurized heavy water reactors, which make up the bulk of the fleets in Canada and India, though the U.S. has none in operation. But the key verb there is that: It works. On Tuesday, I can exclusively report for this newsletter, Clean Core plans to announce that its patented fuel completed a high burnup irradiation test at Idaho National Laboratory’s Advanced Test Reactor. The fuel burnup represented “more than eight times the typical” output from the traditional uranium fuel used in pressurized heavy water reactors. The latest test “provides meaningful performance data” and demonstrates that Clean Core’s fuel “achieve burnup levels comparable to those seen in PWR fuels while offering improved fuel utilization, enhanced safety characteristics, inherent proliferation resistance, and meaningful reductions in long-lived nuclear spent fuel radioisotopes,” Mehul Shah, Clean Core’s chief executive, told me in a statement. “Our objective has been to introduce thorium into the nuclear fuel cycle in a practical way using existing reactors, and this milestone represents a significant step toward that goal.”
It’s the latest good news for Clean Core. Last month, as I reported for Heatmap, the company inked a deal with the Canadian National Laboratories to manufacture its first commercial fuel assemblies.
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In July 2017, South Carolina abandoned its $9 billion expansion of the V.C. Summer Nuclear Station, leaving ratepayers holding the bag and utility executives facing prison time for lying about the project’s viability. Now the pair of Westinghouse AP1000s planned at the site are making a comeback. On Monday, Westinghouse-owner Brookfield Asset Management formed a new joint venture with The Nuclear Company, a reactor construction manager, to work together on building more Westinghouse reactors such as the AP1000 or the smaller version, the AP300. V.C. Summer is the likely first project. “Our team was built on the field of Vogtle and on some of the most complex energy projects in the world,” Joe Klecha, The Nuclear Company’s chief nuclear officer, said in a statement. “We know what it takes to deliver nuclear. What’s been missing is a model that brings together the people, the capabilities, and the capital to do it at speed and scale. That’s what this partnership creates.” The announcement comes as the Trump administration meets with utility executives to discuss funding deals to build the 10 new large-scale reactors President Donald Trump ordered the Department of Energy to facilitate construction on by 2029, as Heatmap’s Robinson Meyer reported. Completing 10 AP1000s would give the U.S. economy a trillion-dollar boost, per a PricewaterhouseCoopers report Westinghouse released in March.
That’s not the only nuclear developer making deals. On Tuesday morning, Blue Energy, another startup focused on serving as a project developer for existing reactor designs, announced a partnership with GE Vernova to work on building the world’s first gas-plus-nuclear plant in Texas. The 2.5-gigawatt project would include GE Vernova’s gas turbines and its BWRX-300 small modular reactors through its joint venture with Hitachi. “Innovative projects like this one will help advance the future of nuclear power and meet the surging demand for electricity,” Scott Strazik, GE Vernova’s chief executive, said in a statement.
Steel, if you’re unfamiliar, is made in two big steps. Traditionally, iron ore is melted down in a coal-fired blast furnace, then forged into steel in a basic oxygen furnace. New plants typically run on something called direct reduced iron, which uses natural gas to turn the ore into iron, then made into steel in an electric arc furnace. The latter process is far cleaner. It can even be green, if the natural gas is swapped for green hydrogen and the electric arc furnace is powered by renewables or nuclear reactors. Nearly 40% of all global clean steel investments to date are hydrogen-powered DRI facilities. That’s according to new data from the Rhodium Group, which released its latest estimates Tuesday. Another 57% of investments are gas-powered DRI plants. While Europe has so far dominated investment into hydrogen DRI, “the region will likely see relatively little demand growth for iron over the coming decades,” the report found. In the fastest growing regions, such as India, Africa, and South America, “most new demand is being met with traditional, fossil-based ironmaking technologies, which risks locking in emissions for decades.” The consultancy’s modeling shows that clean steel supply capacity is on track to exceed demand by between 1.8 and 4.3 times by 2030, “risking a collapse of the nascent industry, where existing projects cannot find buyers and scale production to drive down costs.”
It may be time for a new New Orleans. The city has reached a “point of no return” that will see it surrounded by ocean within decades as climate change worsens. That’s the conclusion of a new paper in the journal Nature Sustainability. “In paleo-climate terms, New Orleans is gone; the question is how long it has,” Jesse Keenan, an expert in climate adaptation at Tulane University and one of the paper’s five co-authors, told The Guardian.
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Current conditions: Tropical Storm Arthur made landfall over Texas just hours after strengthening into the first named storm of the Atlantic hurricane season • Temperatures in Spain, France, and Portugal are forecast to eclipse 104 degrees Fahrenheit by this weekend • A fast-moving wildfire is scorching homes in the Beacon Hill area of Spokane, Washington.
On Wednesday, President Donald Trump signed a 14-paragraph memorandum of understanding with Iran to end the war. Under the deal, which is set for tougher negotiations over the fine details within 60 days, the Strait of Hormuz will reopen, the U.S. will lift sanctions on Iran and unfreeze billions of dollars, and Tehran will continue expanding its civilian nuclear program with a pledge not to seek an atomic weapon. Oil markets responded to the milestone with mixed results. The benchmark prices for oil produced in the U.S. and Europe tumbled about 2% on Wednesday, while the standard for crude from the United Arab Emirates jumped over 3%.
In other macroeconomic news: The Federal Reserve announced Wednesday that it was leaving its benchmark interest rate unchanged for the fourth straight time. Speaking at his first policy meeting since taking office, Kevin Warsh, Trump’s newly appointed Fed chairman, promised to “deliver price stability.” But CNN noted that most of Warsh’s colleagues signaled in their economic outlooks that they anticipated hiking rates again later this year. Rate cuts, as Heatmap’s Matthew Zeitlin has written, are key to boosting renewables, whose upfront costs make them sensitive to interest rates on capital.
The Department of the Interior has agreed to pay the developer Invenergy $765 million to cancel its four offshore wind leases, an amount equal to what the company paid the federal government for access to the areas. Like the administration’s previous deals to kill off as-yet-unbuilt offshore wind projects, Invenergy’s agreement is structured as a legal settlement. As Heatmap’s Emily Pontecorvo explained, the deal follows a similar $928 million arrangement with TotalEnergies announced in March, and an $885 million agreement with several joint ventures in April. That brings the total amount the administration has agreed to pay to end offshore wind leases to more than $2.5 billion to date.
A group of state attorneys general filed a legal challenge to those previous deals earlier this month that questions their use of the Judgment Fund, a functionally unlimited well of cash the federal government can use to settle ongoing or imminent lawsuits. Here’s Emily with more on the Judgment Fund and why using it may be tricky for the administration to defend.
Among the most poignant critiques of solar energy are its intermittency and the amount of land needed to generate vast quantities of power. Batteries are quickly solving the first part of that equation. But data from a new interactive map the Solar Energy Industries Association published this morning shows that solar today takes up just 0.04% of the total U.S. land area, and 0.07% of prime American farmland. There were zero states where solar used more than 0.5% of prime farmland, according to the data, which was shared exclusively with Heatmap. In fact, nearly every state has more abandoned prime farmland than solar-developed parcels. Nationally, there are 43 acres of abandoned prime farmland for every acre of solar on prime farmland. As a particularly jarring point of comparison, golf courses alone use 2.6 times as much prime farmland as solar, while suburban development just since 2014 uses roughly six times as much. “America depends on our land to grow our food, build our communities, and power our lives,” Tim Pawlenty, the newly-appointed chief executive of SEIA and a former Republican governor of Minnesota, told me in a statement. “Responsible land use means balancing all of those needs. This map helps provide important context by showing that solar and agriculture can thrive together. Solar development uses a very small amount of farmland compared to many other common land uses, while also delivering affordable energy, local tax revenue, and reliable income for farmers and landowners.”

Solar, meanwhile, hit a major milestone in California. In the first five months of 2026, utility-scale solar generation in the California Independent System Operator surpassed natural gas power, according to a new analysis from the Energy Information Administration. Compared to the same five-month period in 2024, this year saw a 21% increase in solar generation. Gas-fired generation, meanwhile, sank by 60%.
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Estonia’s parliament has passed a new bill creating the Baltic nation’s first complete set of rules for producing nuclear energy and overseeing its safety, NucNet reported, a key step toward building the NATO country’s first atomic power station. Meanwhile, Swiss lawmakers just rejected a bid to slow down legislation to allow for construction of new reactors again. Switzerland’s Council of States, its upper house of parliament, blocked a motion to refer a nuclear bill to the Federal Council ahead of a planned vote later this week.
In Sweden, the parliament approved legislation to streamline permitting for mining and processing uranium. The bill also included an amendment to open up more coastal sites to reactor development, World Nuclear News reported.
The U.S. is seeing the start of a solar manufacturing boom, perhaps best exemplified by the opening of the first fully integrated plant in Qcells’ factory. Now Soltec, a startup that manufactures tracking equipment to maximize power production, has launched a new line of hardware that it says is completely compliant with new restrictions on foreign imports. The company said it had spent the past year “reorganizing its U.S. supply chain with a clear objective: to provide customers with a highly localized supply network capable of meeting the domestic content requirements” of new federal rules. “By localizing its U.S. supply chain, Soltec helps customers pursue Made-in-USA tax benefits while improving cost competitiveness, delivery certainty, and resilience against tariffs, freight volatility and broader geopolitical disruptions,” Mariano Berges, Soltec’s chief executive, said in a statement. “The objective is to protect U.S. customers and provide greater execution certainty for their projects in an increasingly complex market environment.”
In case you were wondering where former Secretary of Homeland Security Kristi Noem may turn up, here’s your answer: copper mining. The current special envoy to the Shield of the Americas, a pact of right-leaning Western Hemisphere countries, has joined NovaRed Mining, a junior miner that holds two early-stage copper exploration assets in Canada. Noem, who is taking an adviser role, boasts “extensive experience spanning economic development, infrastructure, energy, agriculture, national security and public-private collaboration,” the company said in a press release.
A natural gas well in Kansas is not the same as an offshore wind farm in Maine.
It happened again. The Trump administration has struck a deal with an offshore wind developer to cancel another round of projects. My colleague Emily Pontecorvo has the full story: The Chicago-based company Invenergy has accepted $765 million to give up four offshore wind leases off the coast of New York, California, and Maine.
These deals might be legally suspect — Democratic state attorneys general sued to block them a few weeks ago — but the administration says more are coming. “The Department of Justice looks forward to continued cooperation from companies that are reevaluating their energy investments,” the official press release about today’s deal intones. I have to applaud the federal lawyer who chose the phrase “continued cooperation” here; it is suitably menacing while implying that developers who give in to the racket are somehow complicit.
If you read Heatmap, you knew a deal like this might be coming. As Emily writes, she predicted that Trump would target Invenergy for a deal back in April. Eyes now turn to the German developer RWE, which is sitting on two more leases and hasn’t yet taken a bargain.
Most observers have seen these deals as a front in the president’s war on wind power. And, of course, they are. But they should also be viewed as part of Trump’s peculiar attack on the economy of coastal states.
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By Heatmap’s tally, the Trump administration has now terminated the leases for more than 14 gigawatts of planned offshore wind capacity, or roughly enough to power at least 6 million to 7 million homes. More than half of those gigawatts were initially planned to go to New York and New Jersey’s strained power markets (and on from there to New England and the Mid-Atlantic).
Another 3.4 gigawatts were planned for Maine’s power grid. Maine already suffers from some of the highest power bills in the country, according to Heatmap and MIT’s Electricity Price Hub; its rates have risen more than 10% in the past year.
California was slated to get another 4 gigawatts, and the Carolinas were due the last remaining gigawatt.
What’s funny — or perhaps fishy, given the maritime setting — is that administration officials seem to realize that they shouldn’t be taking so much electricity generation off the map. Today’s Invenergy deal includes a new quasi-quid pro quo arrangement: In exchange for giving up its offshore wind leases, Invenergy agreed to develop natural gas or geothermal power plants in Indiana, Wisconsin, Iowa, Kansas, and Missouri. (Previous deals countenanced only fossil fuel development, so I suppose this counts as a “win.”)
But of course, as Hilary Bright, who leads the pro-wind group Turn Forward, argued this afternoon, that doesn’t work. “These buyouts are not one-for-one ‘swaps’ for another kind of energy,” she said in a statement. These wind farms were meant to bring new generation capacity online in some of the country’s most stressed power markets. It doesn’t work to cancel them, then build new power plants in the middle of the country. New York is particularly power-constrained at the moment and faces a risk of summertime blackouts as soon as the end of this decade. Invenergy’s wind leases in the tristate area — or, as FIFA would call it, New York/New Jersey — were closer to operation than any of its other projects.
If and when blackouts arrive in Gotham, will New Yorkers look back and remember this moment? Or — somewhat more importantly to Trump — will voters in Maine and North Carolina, both of which have elections this November that will help determine the balance of the Senate. Whatever happens, we’ll be watching it here at Heatmap.
The deal with developer Invenergy includes a commitment to build geothermal generation in addition to natural gas.
In the third deal of its kind, Trump’s Interior Department has agreed to pay the energy developer Invenergy $765 million to cancel its four offshore wind leases, an amount equal to what Invenergy originally paid the federal government for them.
Like the preceding deals, the administration structured the refund as a legal settlement with Invenergy. That means the government will pay the company out of the Judgment Fund, a reserve of taxpayer dollars overseen by the Department of Justice and the Treasury Department that’s set aside to settle litigation that’s either ongoing or imminent.
The Invenergy agreement follows a similar $928 million arrangement with TotalEnergies announced in March, and an $885 million agreement with several joint ventures in April. That brings the total amount the Trump administration has agreed to pay to cancel offshore wind leases to more than $2.5 billion to date. The agency has not yet posted the settlement publicly, but the previous agreements were predicated on hypothetical lawsuits that the offshore wind developers would have filed if the Trump administration had paused activity on their leases, which it threatened to do based on national security concerns.
The key difference in the Invenergy agreement is in the quid pro quo. The other settlements specified that the companies would only be eligible for payment after investing an equal amount into U.S. oil and gas projects. In exchange for walking away from its offshore wind leases, Invenergy promised not only to develop natural gas-fired power plants, but also geothermal power generation projects — which are emissions-free.
Invenergy is a diversified power developer that builds solar, storage, wind, and natural gas generation. The company currently has more than 30 gigawatts of solar in its development pipeline and 10 gigawatts of natural gas. It has not yet built a geothermal power plant, but it has leased 139,000 acres of federal land to explore geothermal development. It’s also a member of the Mountain West Geothermal Consortium, a group of states, investors, and companies working together to scale the technology.
Invenergy holds one offshore wind lease off the coast of New York and New Jersey that it purchased in 2022 for $645 million, where it was developing its Leading Light project before work stalled last November. It also has a lease off the coast of California that it acquired for $112 million, also in 2022, and two in the Gulf of Maine, for which it paid about $9 million in 2024.
In a blog post published Wednesday, Invenergy said the deal with the Trump administration would “bring more megawatts to the grid and advance projects that can move forward today,” implying that the projects the company will build instead of offshore wind will come online faster.
The problem with Trump’s quid pro quos across all of these deals is that there’s no guarantee the companies wouldn’t have invested the same amount of money into the same projects regardless of whether they were reimbursed for their offshore wind leases. In the case of Total, the settlement is explicit that projects the company had already committed to invest in prior to the deal qualify.
After the administration announced the second round of offshore wind lease buyouts in April, making it clear the strategy was not a one-off settlement with Total but a new strategy to squash the industry, I named Invenergy as one of two developers that could be next. The other one that seems positioned to reach a similar deal is RWE, a German energy company with plans to develop 15 natural gas plants in the U.S. RWE paid $1.1 billion in 2022 to purchase a lease off the coast of New York and New Jersey for a project called Community Offshore — the most any company has paid to date for U.S. offshore wind development rights. It also bought a lease in the Pacific for $121 million, and another in the Gulf of Mexico for about $4 million.
In a press release, the Interior Department signaled its intention to broker more such agreements. “The Department of Justice looks forward to continued cooperation from companies that are reevaluating their energy investments,” it said.
Legal experts I’ve spoken with are skeptical that any of these settlement agreements comply with federal law. The government’s leasing statutes generally do not allow companies to walk away from their agreement and receive a refund.
Earlier this month, a group of seven attorneys general from Northeast states challenged Trump’s deal with TotalEnergies in court. They alleged that there was no actual disagreement between the parties that would legitimize use of the Judgement Fund. They also argued that under the Outer Continental Shelf Lands Act, the statute governing offshore wind, the Interior Department was required to hold a hearing to investigate whether continued activity on the lease would cause serious harm to the environment or national security before cancelling it.
The Trump administration has lost every lawsuit thrown its way so far challenging its actions on offshore wind. Last week, it quietly gave up its own appeal of a federal court’s December decision vacating Trump’s Day One Executive Order to halt wind energy approvals. The Invenergy deal suggests that this was less a sign of surrender in Trump’s wind war than part of a pivot to other strategies.
Editor’s note: This story has been updated to include the press release from the Department of the Interior.