You’re out of free articles.
Log in
To continue reading, log in to your account.
Create a Free Account
To unlock more free articles, please create a free account.
Sign In or Create an Account.
By continuing, you agree to the Terms of Service and acknowledge our Privacy Policy
Welcome to Heatmap
Thank you for registering with Heatmap. Climate change is one of the greatest challenges of our lives, a force reshaping our economy, our politics, and our culture. We hope to be your trusted, friendly, and insightful guide to that transformation. Please enjoy your free articles. You can check your profile here .
subscribe to get Unlimited access
Offer for a Heatmap News Unlimited Access subscription; please note that your subscription will renew automatically unless you cancel prior to renewal. Cancellation takes effect at the end of your current billing period. We will let you know in advance of any price changes. Taxes may apply. Offer terms are subject to change.
Subscribe to get unlimited Access
Hey, you are out of free articles but you are only a few clicks away from full access. Subscribe below and take advantage of our introductory offer.
subscribe to get Unlimited access
Offer for a Heatmap News Unlimited Access subscription; please note that your subscription will renew automatically unless you cancel prior to renewal. Cancellation takes effect at the end of your current billing period. We will let you know in advance of any price changes. Taxes may apply. Offer terms are subject to change.
Create Your Account
Please Enter Your Password
Forgot your password?
Please enter the email address you use for your account so we can send you a link to reset your password:
The administration argued in the name of national defense — but Orsted had receipts.

When the Trump administration ordered work on Orsted’s Revolution Wind offshore wind project to shut down in late August, it cited national security concerns as the reason for the delay.
Within weeks, a federal judge had lifted the stop work order, allowing construction to proceed.
What happened in between matters. In its rush to stop a wind project, the Trump administration exposed the first cracks in its anti-wind policy agenda — a loss that may embolden companies targeted by the crackdown on renewable energy development to fight back.
Orsted, the Danish wind giant, was more than halfway done building Revolution Wind by August 22, the day the Bureau of Ocean Energy Management ordered an immediate stop to construction. In a one-page letter explaining the order, the agency dedicated a single paragraph to the rationale behind its decision: “BOEM is seeking to address concerns related to the protection of national security interests of the United States and prevention of interference with reasonable uses of the exclusive economic zone, the high seas, and the territorial seas,” it said.
Orsted filed a lawsuit against the U.S. government within days and asked for a preliminary injunction against the stop-work order. The Trump administration had acted arbitrarily when it halted construction on Revolution Wind, the company argued, a violation of the Administrative Procedures Act, which forces the government to have at least some sensible reason for its decision-making.
There were urgent financial stakes to the court’s decision, the company said. On top of strict timelines for completing the project that were laid out in power purchase agreements, the cable installation company working on Revolution Wind has just a brief window before it is booked for other projects through mid-2028. Unless the judge acted quickly, according to Orsted, Revolution Wind could face “project cancellation and termination of the enterprise,” at an estimated cost of more than $1 billion.
After Orsted filed its suit, the attorneys general of Connecticut and Rhode Island — two of the three states designated to receive electricity from Revolution Wind — soon followed course. The Trump administration responded by doubling down on its claims related to national defense. Revolution Wind, officials argued, would negatively impact radar detection and result in dangerous electromagnetic emissions. They also asserted that Defense Department officials were overruled or ignored when they raised concerns about this matter in the review process for the project, which received its final permits in 2023. (It’s worth noting the Trump administration’s legal filings refer to the military as the Department of War, or DOW.)
The Department of the Interior’s acting assistant secretary for land and minerals management, Adam Suess, told the court on September 12 in a sworn declaration that Revolution Wind had not fully addressed a host of concerns. Suess elaborated on the stop work order, asserting that it concerned the project’s “continued inability to reach certain mitigation agreements” with the military and the National Oceanic and Atmospheric Administration. Suess stated Revolution Wind was not in full compliance with the terms of its construction and operations plan, which are subject to government approval. He also said there were outstanding issues with Revolution Wind’s coordination with military operators at sea, and that there was still “risk from distributed optical fiber sensing and acoustic monitoring equipment.
“The Department has been in touch with NOAA and the DOW to gather more information,” the filing said, somewhat cryptically.
Suess also acknowledged that the Trump administration is reconsidering its prior green lights for Revolution Wind, including its approval of the construction and operations plan, linking this to a broader all-of-government review of the offshore wind industry Trump ordered on Day One via executive order.
In response, Orsted called the government’s bluff. The company submitted sworn declarations from top company officials who had worked on Revolution Wind, attesting to the fact that before Trump came into office, the military and NOAA were saying everything looked A-OK.
“Mr. Suess’ declaration makes new allegations against Revolution Wind that were not mentioned in the stop work order,” Orsted’s attorneys wrote in their reply. “These new allegations are factually inaccurate and controverted by Revolution Wind’s compliance with project requirements.”
One of Orsted’s declarations was from Melanie Gearon, the company’s head of northeast permitting. Suess had claimed that Revolution Wind was far from reaching a critical agreement with NOAA’s Fisheries division, known as the National Marine Fisheries Service, to mitigate the effects of sea surveys on fishing vessels. But Gearon painted a completely different picture, detailing years of negotiations with NOAA and BOEM about how to handle the surveys.
These talks had apparently continued months into the Trump administration. Orsted submitted an email from BOEM to the company dated July 9, in which an official explicitly says that agency staff were discussing scenarios where Orsted could just “state that they are continuing to work with [the National Marine Fisheries Service] on a Survey Mitigation agreement, which could still be submitted at a later date.” Gearon said the company had received “updated cost modeling” from the agency as recently as September 9, days before Suess’ comments were submitted in court.
Then came the comments from Orsted’s head of marine affairs, Edward LeBlanc, who served in the military for decades and worked on offshore energy oversight. He told the court that the Navy had never once raised any issues with the project’s export cable and that as recently as July 2025, no military officials had expressed lingering concerns about electromagnetic emissions, vessel collisions or other potential national security problems.
“To date, Revolution Wind has never received a notice or any indication that it has failed to coordinate with DOD regarding its offshore activities, or that the U.S. Navy or DOD has any concerns with the ongoing coordination,” LeBlanc stated.
It was after this filing that the justice overseeing the case, U.S. District Judge Royce Lamberth, approved the preliminary injunction and lifted the stop-work order.
As long as offshore wind has existed there has been tension with the U.S. military over use of the sea, and it is true that turbines could hinder radar detection.
In 2011, the Defense Department established a “clearinghouse” to resolve any potential issues with ocean energy development of any kind, whether oil, gas, or wind power. The clearinghouse reviews more than 5,000 projects every year, and its activities include regular give and take with the Interior Department and Federal Aviation Administration. One of the many pieces of evidence Orsted submitted in the Revolution Wind case was a December 2024 letter from the clearinghouse stating the project “would not have adverse impacts to DOD missions in the area.”
Josh Kaplowitz, an environmental attorney who represents renewable energy companies including offshore wind developers, and who previously worked in the Interior Department solicitor’s office, told me: “There is not a single situation I am aware of where the Defense Department ever requested something and the approving agency said, ‘No, we’re going to do something else.’”
“There are some problems with coming in after the fact and coming up with post hoc national security rationalizations when the process of review was so rigorous,” Kaplowitz said.
Independent analysis has also cleared the military’s consultation with offshore wind permitting agencies of having any serious issues.
Earlier this year the Government Accountability Office — a quasi-independent watchdog under the control of Congress — released a detailed review of the offshore wind industry’s federal permitting process. The review was requested by one of the sector’s biggest adversaries in Congress, Representative Chris Smith of New Jersey, who has been heavily involved in fighting offshore wind development in his home state.
Smith, a Republican, ultimately celebrated the review’s publication because it pointed out certain ways offshore wind could impact radar detection and military readiness. In his public statements, however, the lawmaker left out a key detail of the report — that it raised no issues with interactions between the military and offices involved in greenlighting offshore wind projects. In fact, it went into great detail on the lengths researchers and government officials had gone toward solving these potential problems.
“We didn’t have any recommendations there,” Frank Russo, director of GAO’s natural resources department, told me in an interview. “It seemed like coordination was going well, that DOD was satisfied with what was going on, and if there were concerns they could be mitigated.”
Russo said that Defense officials had for years been involved in offshore wind leasing, meaning that military staff from the Navy and Coast Guard had already weighed in on potential safety and readiness problems before companies even knew where they were allowed to build, and certainly prior to the project-specific permitting stage.
“At the very start of it, they know where their main concerns are,” Russo said of the Defense Department’s role in offshore wind development.
The Interior Department normally declines to comment on pending litigation. But I still wanted to ask Interior to comment on the assertions from Russo that the Interior Department and military were properly handling the security implications of offshore wind. It felt especially important to ask them about this because Interior Secretary Doug Burgum last month explained the Revolution Wind stop work order on national TV by claiming radar interference would leave the country vulnerable to “swarm attacks” from underwater drones.
Tory Peabody, a Bureau of Ocean Energy Management spokesperson, provided the following statement to Heatmap: “As a result of the court’s decision, Revolution Wind will be able to resume construction as BOEM continues its investigation into possible impacts by the project to national security and prevention of other uses on the Outer Continental Shelf. The Department of the Interior remains committed to ensuring that prior decisions are legally and factually sound.”
Editor’s note: This story has been updated to include a statement from BOEM, and to remove an errant “not” in the second-to-last paragraph.
Log in
To continue reading, log in to your account.
Create a Free Account
To unlock more free articles, please create a free account.
A federal judge in Massachusetts ruled that construction on Vineyard Wind could proceed.
The Vineyard Wind offshore wind project can continue construction while the company’s lawsuit challenging the Trump administration’s stop work order proceeds, judge Brian E. Murphy for the District of Massachusetts ruled on Tuesday.
That makes four offshore wind farms that have now won preliminary injunctions against Trump’s freeze on the industry. Dominion Energy’s Coastal Virginia offshore wind project, Orsted’s Revolution Wind off the coast of New England, and Equinor’s Empire Wind near Long Island, New York, have all been allowed to proceed with construction while their individual legal challenges to the stop work order play out.
The Department of the Interior attempted to pause all offshore wind construction in December, citing unspecified “national security risks identified by the Department of War.” The risks are apparently detailed in a classified report, and have been shared neither with the public nor with the offshore wind companies.
Vineyard Wind, a joint development between Avangrid Renewables and Copenhagen Infrastructure Partners, has been under construction since 2021, and is already 95% built. More than that, it’s sending power to Massachusetts customers, and will produce enough electricity to power up to 400,000 homes once it’s complete.
In court filings, the developer argued it was urgent the stop work order be lifted, as it would lose access to a key construction boat required to complete the project on March 31. The company is in the process of replacing defective blades on its last handful of turbines — a defect that was discovered after one of the blades broke in 2024, scattering shards of fiberglass into the ocean. Leaving those turbine towers standing without being able to install new blades created a safety hazard, the company said.
“If construction is not completed by that date, the partially completed wind turbines will be left in an unsafe condition and Vineyard Wind will incur a series of financial consequences that it likely could not survive,” the company wrote. The Trump administration submitted a reply denying there was any risk.
The only remaining wind farm still affected by the December pause on construction is Sunrise Wind, a 924-megawatt project being developed by Orsted and set to deliver power to New York State. A hearing for an injunction on that order is scheduled for February 2.
Noon Energy just completed a successful demonstration of its reversible solid-oxide fuel cell.
Whatever you think of as the most important topic in energy right now — whether it’s electricity affordability, grid resilience, or deep decarbonization — long-duration energy storage will be essential to achieving it. While standard lithium-ion batteries are great for smoothing out the ups and downs of wind and solar generation over shorter periods, we’ll need systems that can store energy for days or even weeks to bridge prolonged shifts and fluctuations in weather patterns.
That’s why Form Energy made such a big splash. In 2021, the startup announced its plans to commercialize a 100-plus-hour iron-air battery that charges and discharges by converting iron into rust and back again. The company’s CEO, Mateo Jaramillo, told The Wall Street Journal at the time that this was the “kind of battery you need to fully retire thermal assets like coal and natural gas power plants.” Form went on to raise a $240 million Series D that same year, and is now deploying its very first commercial batteries in Minnesota.
But it’s not the only player in the rarified space of ultra-long-duration energy storage. While so far competitor Noon Energy has gotten less attention and less funding, it was also raising money four years ago — a more humble $3 million seed round, followed by a $28 million Series A in early 2023. Like Form, it’s targeting a price of $20 per kilowatt-hour for its electricity, often considered the threshold at which this type of storage becomes economically viable and materially valuable for the grid.
Last week, Noon announced that it had completed a successful demonstration of its 100-plus-hour carbon-oxygen battery, partially funded with a grant from the California Energy Commission, which charges by breaking down CO2 and discharges by recombining it using a technology known as a reversible solid-oxide fuel cell. The system has three main components: a power block that contains the fuel cell stack, a charge tank, and a discharge tank. During charging, clean electricity flows through the power block, converting carbon dioxide from the discharge tank into solid carbon that gets stored in the charge tank. During discharge, the system recombines stored carbon with oxygen from the air to generate electricity and reform carbon dioxide.
Importantly, Noon’s system is designed to scale up cost-effectively. That’s baked into its architecture, which separates the energy storage tanks from the power generating unit. That makes it simple to increase the total amount of electricity stored independent of the power output, i.e. the rate at which that energy is delivered.
Most other batteries, including lithium-ion and Form’s iron-air system, store energy inside the battery cells themselves. Those same cells also deliver power; thus, increasing the energy capacity of the system requires adding more battery cells, which increases power whether it’s needed or not. Because lithium-ion cells are costly, this makes scaling these systems for multi-day energy storage completely uneconomical.
In concept, Noon’s ability to independently scale energy capacity is “similar to pumped hydro storage or a flow battery,” Chris Graves, the startup’s CEO, told me. “But in our case, many times higher energy density than those — 50 times higher than a flow battery, even more so than pumped hydro.” It’s also significantly more energy dense than Form’s battery, he said, likely making it cheaper to ship and install (although the dirt cheap cost of Form’s materials could offset this advantage.)
Noon’s system would be the first grid-scale deployment of reversible solid-oxide fuel cells specifically for long-duration energy storage. While the technology is well understood, historically reversible fuel cells have struggled to operate consistently and reliably, suffering from low round trip efficiency — meaning that much of the energy used to charge the battery is lost before it’s used — and high overall costs. Graves conceded Noon has implemented a “really unique twist” on this tech that’s allowed it to overcome these barriers and move toward commercialization, but that was as much as he would reveal.
Last week’s demonstration, however, is a big step toward validating this approach. “They’re one of the first ones to get to this stage,” Alexander Hogeveen Rutter, a manager at the climate tech accelerator Third Derivative, told me. “There’s certainly many other companies that are working on a variance of this,” he said, referring to reversible fuel cell systems overall. But none have done this much to show that the technology can be viable for long-duration storage.
One of Noon’s initial target markets is — surprise, surprise — data centers, where Graves said its system will complement lithium-ion batteries. “Lithium ion is very good for peak hours and fast response times, and our system is complementary in that it handles the bulk of the energy capacity,” Graves explained, saying that Noon could provide up to 98% of a system’s total energy storage needs, with lithium-ion delivering shorter streams of high power.
Graves expects that initial commercial deployments — projected to come online as soon as next year — will be behind-the-meter, meaning data centers or other large loads will draw power directly from Noon’s batteries rather than the grid. That stands in contrast to Form’s approach, which is building projects in tandem with utilities such as Great River Energy in Minnesota and PG&E in California.
Hogeveen Rutter, of Third Derivative, called Noon’s strategy “super logical” given the lengthy grid interconnection queue as well as the recent order from the Federal Energy Regulatory Commission intended to make it easier for data centers to co-locate with power plants. Essentially, he told me, FERC demanded a loosening of the reins. “If you’re a data center or any large load, you can go build whatever you want, and if you just don’t connect to the grid, that’s fine,” Hogeveen Rutter said. “Just don’t bother us, and we won’t bother you.”
Building behind-the-meter also solves a key challenge for ultra-long-duration storage — the fact that in most regions, renewables comprise too small a share of the grid to make long-duration energy storage critical for the system’s resilience. Because fossil fuels still meet the majority of the U.S.’s electricity needs, grids can typically handle a few days without sun or wind. In a world where renewables play a larger role, long-duration storage would be critical to bridging those gaps — we’re just not there yet. But when a battery is paired with an off-grid wind or solar plant, that effectively creates a microgrid with 100% renewables penetration, providing a raison d’être for the long-duration storage system.
“Utility costs are going up often because of transmission and distribution costs — mainly distribution — and there’s a crossover point where it becomes cheaper to just tell the utility to go pound sand and build your power plant,” Richard Swanson, the founder of SunPower and an independent board observer at Noon, told me. Data centers in some geographies might have already reached that juncture. “So I think you’re simply going to see it slowly become cost effective to self generate bigger and bigger sizes in more and more applications and in more and more locations over time.”
As renewables penetration on the grid rises and long-duration storage becomes an increasing necessity, Swanson expects we’ll see more batteries like Noon’s getting grid connected, where they’ll help to increase the grid’s capacity factor without the need to build more poles and wires. “We’re really talking about something that’s going to happen over the next century,” he told me.
Noon’s initial demo has been operational for months, cycling for thousands of hours and achieving discharge durations of over 200 hours. The company is now fundraising for its Series B round, while a larger demo, already built and backed by another California Energy Commission grant, is set to come online soon.
While Graves would not reveal the size of the pilot that’s wrapping up now, this subsequent demo is set to deliver up to 100 kilowatts of power at once while storing 10 megawatt-hours of energy, enough to operate at full power for 100 hours. Noon’s full-scale commercial system is designed to deliver the same 100-hour discharge duration while increasing the power output to 300 kilowatts and the energy storage capacity to 30 megawatt-hours.
This standard commercial-scale unit will be shipping container-sized, making it simple to add capacity by deploying additional modules. Noon says it already has a large customer pipeline, though these agreements have yet to be announced. Those deals should come to light soon though, as Swanson says this technology represents the “missing link” for achieving full decarbonization of the electricity sector.
Or as Hogeveen Rutter put it, “When people talk about, I’m gonna get rid of all my fossil fuels by 2030 or 2035 — like the United Kingdom and California — well this is what you need to do that.”
On aluminum smelting, Korean nuclear, and a geoengineering database
Current conditions: Winter Storm Fern may have caused up to $115 billion in economic losses and triggered the longest stretch of subzero temperatures in New York City’s history • Temperatures across the American South plunged up to 30 degrees Fahrenheit below historical averages • South Africa’s Northern Cape is roasting in temperatures as high as 104 degrees.

President Donald Trump has been on quite a shopping spree since taking an equity stake in MP Materials, the only active rare earths miner in the U.S., in a deal Heatmap’s Matthew Zeitlin noted made former Biden administration officials “jealous.” The latest stake the administration has taken for the American taxpayer is in USA Rare Earth, a would-be miner that has focused its attention establishing a domestic manufacturing base for the rare earth-based magnets China dominates. On Monday, the Department of Commerce announced a deal to inject $1.6 billion into the company in exchange for shares. “USA Rare Earth’s heavy critical minerals project is essential to restoring U.S. critical mineral independence,” Secretary of Commerce Howard Lutnick said in a statement. “This investment ensures our supply chains are resilient and no longer reliant on foreign nations.” In a call with analysts Monday, USA Rare Earth CEO Barbara Humpton called the deal “a watershed moment in our work to secure and grow a resilient and independent rare earth value chain based in this country.”
After two years of searching for a site to build the United States’ first new aluminum smelter in half a century, Century Aluminum has abandoned its original plan and opted instead to go into business with a Dubai-based rival developing a plant in Oklahoma. Emirates Global Aluminum announced plans last year to construct a smelter near Tulsa. Under the new plan, Century Aluminum would take a 40% stake in the venture, with Emirates Global Aluminum holding the other 60%. At peak capacity, the smelter would produce 750,000 tons of aluminum per year, a volume The Wall Street Journal noted would make it the largest smelter in the U.S. Emirates Global Aluminum has not yet announced a long-term contract to power the facility. Century Aluminum’s original plan was to use 100% of its power from renewables or nuclear, Canary Media reported, and received $500 million from the Biden administration to support the project.
The federal Mine Safety and Health Administration has stopped publishing data tied to inspections of sites with repeated violations, E&E News reported. At a hearing before the House Education & the Workforce Subcommittee on Workforce Protections last week, Wayne Palmer, the assistant secretary of labor for mine safety and health, said the data would no longer be made public. “To the best of my knowledge, we do not publish those under the current administration,” Palmer said. He said the decision to not make public results of “targeted inspections” predated his time at the agency. The move comes as the Trump administration is pushing to ramp up mining in the U.S. to compete with China’s near monopoly over key metals such as rare earths, and lithium. As Heatmap’s Katie Brigham wrote in September, “everybody wants to invest in critical minerals.”
Sign up to receive Heatmap AM in your inbox every morning:
South Korea’s center-left Democratic Party has historically been staunchly anti-nuclear. So when the country’s nuclear regulator licensed a new plant earlier this month — its first under a new Democratic president — I counted it as a win for the industry. Now President Lee Jae-myung’s administration is going all in all on atomic energy. On Monday, NucNet reported that the state-owned Korea Hydro & Nuclear Power plans to open bidding for sites for two new large reactors. The site selection is set to take up to six months. The country then plans to begin construction in the early 2030s and bring the reactors online in 2037 and 2038. Kim Sung-whan, the country’s climate minister, said the Lee administration would stick to the nuclear buildout plan authored in February 2025 under former President Yoon Suk Yeol, a right-wing leader who strongly supported the atomic power industry before being ousted from power after attempting to declare martial law.
Reflective, a nonprofit group that bills itself as “aiming to radically accelerate the pace of sunlight reflection research,” launched its Uncertainty Database on Monday, with the aim of providing scientists, funders, and policymakers with “an initial foundation to create a transparent, prioritized, stage-gated” roadmap of different technologies to spray aerosols in the atmosphere to artificially cool the planet. “SAI research is currently fragmented and underpowered, with no shared view of which uncertainties actually matter for real-world decisions,” Dakota Gruener, the chief executive of Reflective, said in a statement. “We need a shared, strategic view of what we know, what we don’t, and where research can make the biggest difference. The Uncertainty Database helps the field prioritize the uncertainties and research that matter most for informed decisions about SAI.” The database comes as the push to research geoengineering technologies goes mainstream. As Heatmap’s Robinson Meyer reported in October, Stardust Solutions, a U.S. firm run by former Israeli government physicists, has already raised $60 million in private capital to commercialize technology that many climate activists and scientists still see as taboo to even study.
Often we hear of the carbon-absorbing potential of towering forest trees or fast-growing algae. But nary a word on the humble shrub. New research out of China suggests the bush deserves another look. An experiment in planting shrubs along the edges of western China’s Taklamakan Desert over the past four decades has not only kept desertification at bay, it’s made a dent in carbon emissions from the area. “This is not a rainforest,” King-Fai Li, a physicist at the University of California at Riverside, said in a statement. “It’s a shrubland like Southern California’s chaparral. But the fact that it’s drawing down CO2 at all, and doing it consistently, is something positive we can measure and verify from space.” The study provides a rare, long-term case study of desert greening, since this effort has endured for decades whereas one launched in the Sahara Desert by the United Nations crumbled.