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While they’re getting more accurate all the time, they still rely on data from traditional models — and possibly always will.

The National Oceanic and Atmospheric Administration has had a bruising few weeks. Deep staffing cuts at the hands of Elon Musk’s efficiency crusaders have led to concerns regarding the potential closure of facilities critical to data-gathering and weather-forecasting operations. Meteorologists have warned that this could put lives at risk, while industries that rely on trustworthy, publicly available weather data — from insurance to fishing, shipping, and agriculture — are bracing for impact. While reliable numbers are difficult to come by, the agency appears to have lost on the order of 7% to 10% of its workforce, or more than 1,000 employees. NOAA’s former deputy director, Andrew Rosenberg, wrote that Musk plans to lay off 50% of the agency, while slashing its budget by 30%.
Will that actually happen? Who the heck knows. But what we can look at are the small cracks that are already emerging, and who could step in to fill that void.
One thing that’s certain is that the National Weather Service, a division of NOAA, announced last week that it is suspending operations at a weather balloon launch site in Alaska, due to staffing shortages. The data gathered at this remote outpost helped inform the agency’s weather forecasts, which are relied upon by hundreds of millions of people, as well as many of the world’s largest companies and public agencies.
Perhaps to Musk’s department, this looks like a prime opportunity for the private sector to step up and demonstrate some nimble data gathering prowess — and indeed a startup that I’ve covered before, WindBorne, has already offered its services. The company, which makes advanced weather balloons, has offered to provide NOAA with data from its own Alaska launches for six months, at no cost. WindBorne is also one of a number of private companies creating AI-based weather models that have outperformed NOAA’s traditional, physics-based models on key metrics such as temperature, wind speed and direction, precipitation, humidity, and pressure.
All this raises the question, though, of what kind of role the private sector could and should play in the weather forecasting space overall. If the architects of Project 2025 have their way, NOAA would be “broken up and downsized,” and its National Weather Service division would “fully commercialize its forecasting operations.” If the Trump administration achieves these goals, “the Weather Service would cease to function in a way that it could meet its mandate to protect American life and property,” Daniel Swain, a climate scientist at University of California Agriculture and Natural Resources, told me.
But given that heavyweights like Google, Huawei, and Nvidia are already in the AI-based weather prediction game, along with startups such as WindBorne and Brightband, which is making weather predictions tailored to the needs of specific industries such as insurance, agriculture, or transportation, it wasn’t clear to me whether, if NOAA were to crumble, the accuracy of weather forecasts necessarily would, too. I thought that perhaps Musk, the White House’s most notorious AI enthusiast, might be thinking the same thing. So I asked around.
“There’s actually a very good argument that I think would be very uncontroversial to expand the role of the private sector, even to offload certain parts of the workflow to the private sector,” Swain told me, with regards to NOAA and its adoption — or lack thereof — of AI-based weather forecasting. But what nobody wanted was to get rid of free, publicly available government forecasts completely.
“I don’t want to have to figure out what company to trust. I just want to be able to go and open the National Weather Service and know what’s going on,” John Dean, the CEO and co-founder of WindBorne, told me.
Julian Green, the CEO and co-founder of Brightband, agreed. “The government doesn’t just forecast the weather, but it gives people alerts. And there’s regulation around whether [it tells you that] you should evacuate, or shut your factory down, or so on.” It’s not hard to imagine the ethical quandaries that could arise from a private company with a profit motive deciding who can access potentially life-saving forecasts, and for how much.
WindBorne’s and Brightband’s AI models, as well as those from tech giants such as Google, are significantly less computationally intensive to operate than those from NOAA or the other leading weather forecasting agency, the European Center for Medium-Range Weather Forecasts. These traditional models rely on supercomputers crunching complicated atmospheric equations based on the laws of physics to make their predictions.
But this doesn’t mean the physics-based models are getting replaced by AI now, or potentially ever. Government data and traditional forecasts still make up the backbone of advanced AIs, which are trained on decades of data largely gathered by NOAA satellites, weather balloons, and radar systems, and then interpreted through the lens of standard physics-based models. After training is complete, the AI models can predict what weather patterns will develop, much like ChatGPT predicts the next word in a sequence, but only after being fed a snapshot of initial weather conditions — also pulled from traditional physics-based models.
Essentially, these AI forecasts are built on the backs of the giants, and while their outcomes are hugely promising, they could not exist without that solid foundation. While one day, it might be possible to operate AI forecasting models without relying on traditional models, Dean and Green told me that physics-based models might always be critical for training the AI. So while their companies’ respective models have yielded impressive results, both Dean and Green nixed the idea that their companies could wholly replace the predictions made by the National Weather Service.
All of this is in flux of course, but as Green put it to me in an email, “a good mechanic doesn't throw away good older tools just because you get new tools.” Plus, as Dean explained, there are still conditions under which physics-based models tend to outperform AI, such as “really small-scale and high-res phenomena — let’s say convective events, let’s say severe thunderstorms in the Plains, or tornado formation.”
Even Project 2025’s authors point out that private industry forecasters rely on publicly available NOAA data, though it doesn’t make any reference to AI models or physics models. The document simply says that the agency “should focus on its data-gathering services” and the “efficient delivery of accurate, timely, and unbiased data to the public and to the private sector.”
There are also questions around whether AI models, trained on data from the past, will be able to predict the types of unusual and extreme weather events that are becoming more and more common in a warming world, Swain told me. “Does it fully capture those?” he asked. “There’s a lot of evidence that the answer is no.”
Lastly, NOAA’s weather model, the Global Forecast System, is simply measuring much more than the AI models do today. “It predicts so many different phenomena, like different types of snow, hail, mixing ratios, turbulence,” Dean said. “We’re building up over time to add more and more variables. But for both WindBorne and other models, it’s not the same currently as what GFS does.”
So while the Heritage Foundation might want to delegate all forecasting responsibilities to private companies, the vision I heard from the startups I talked to looked more like a mutually beneficial arrangement than the full commercialization of weather prediction, or even a clean division of labor. “It’s not privatized weather, it’s a public-private partnership,” Dean said of his ideal future, “where you get freely available forecasts from a public institution like NOAA, but they work with our industry to iterate faster and to drive more innovation.”
What everyone seems to want is simply for the government to forecast better, and today that means moving quickly to build AI-based models. NOAA has taken some steps forward, prototyping some models, bolstering its computing capabilities, and even recently partnering with Brightband to optimize its observational data to train AI models. But it remains behind other agencies in this regard. “The Chinese government and the European Center for Medium Range Weather Forecasts have done a far better job at adopting AI-based weather forecasts than NOAA has,” Dean told me. “So something does need to change at NOAA to get them to move faster.”
Indiscriminately laying off hundreds of the agency’s employees may not be the best place to start. But if there’s anything we know Musk loves, it’s AI and private sector ingenuity. So maybe, just maybe, this administration will be able to forge the kind of partnerships that can supercharge federal forecasting, while keeping NOAA’s weather predictions free and open for all. Or maybe we’ll all just be paying the big bucks to figure out when a hurricane is going to hit.
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Current conditions: The Pacific Northwest’s second atmospheric river in a row is set to pour up to 8 inches of rain on Washington and Oregon • A snow storm is dumping up to 6 inches of snow from North Dakota to northern New York • Warm air is blowing northeastward into Central Asia, raising temperatures to nearly 80 degrees Fahrenheit at elevations nearly 2,000 feet above sea level.
Heatmap’s Jael Holzman had a big scoop last night: The three leading Senate Democrats on energy and permitting reform issues are a nay on passing the SPEED Act. In a joint statement shared exclusively with Jael, Senate Energy and Natural Resources ranking member Martin Heinrich, Environment and Public Works ranking member Sheldon Whitehouse, and Hawaii senator Brian Schatz pledged to vote against the bill to overhaul the National Environmental Policy Act unless the legislation is updated to include measures to boost renewable energy and transmission development. “We are committed to streamlining the permitting process — but only if it ensures we can build out transmission and cheap, clean energy. While the SPEED Act does not meet that standard, we will continue working to pass comprehensive permitting reform that takes real steps to bring down electricity costs,” the statement read. To get up to speed on the legislation, read this breakdown from Heatmap’s Emily Pontecorvo.

In June, Heatmap’s Matthew Zeitlin explained how New York State was attempting to overcome the biggest challenge to building a new nuclear plant — its deregulated electricity market — by tasking its state-owned utility with overseeing the project. It’s already begun staffing up for the nuclear project, as I reported in this newsletter. But it’s worth remembering that the New York Power Authority, the second-largest government-controlled utility in the U.S. after the federal Tennessee Valley Authority, gained a new mandate to invest in power plants directly again when the 2023 state budget passed with measures calling for public ownership of renewables. On Tuesday, NYPA’s board of trustees unanimously approved a list of projects in which the utility will take 51% ownership stakes in a bid to hasten construction of large-scale solar, wind, and battery facilities. The combined maximum output of all the projects comes to 5.5 gigawatts, nearly double the original target of 3 gigawatts set in January.
But that’s still about 25% below the 7 gigawatts NYPA outlined in its draft proposal in July. What changed? At a hearing Tuesday morning, NYPA officials described headwinds blowing from three directions: Trump’s phaseout of renewable tax credits, a new transmission study that identified which projects would cost too much to patch onto the grid, and a lack of power purchase agreements from offtakers. One or more of those variables ultimately led private developers to pull out at least 16 projects that NYPA would have co-owned.
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During World War II, the Lionel toy train company started making components for warships, the Ford Motor Company produced bomber planes, and the Mattatuck Manufacturing Company known for its upholstery nails switched to churning out cartridge clips for Springfield rifles. In a sign of how severe the shortfall of equipment to generate gas-powered electricity has become, would-be supersonic jet startups are making turbines. While pushing to legalize flights of the supersonic jets his company wants to build, Blake Scholl, the chief executive of Boom Supersonic, said he “kept hearing about how AI companies couldn’t get enough electricity,” and how companies such as ChatGPT-maker OpenAI “were building their own power plants with large arrays of converted jet engines.” In a thread on X, he said that, “under real world conditions, four of our Superpower turbines could do the job of seven legacy units. Without the cooling water required by legacy turbines!”
The gas turbine crisis, as Matthew wrote in September, may be moving into a new phase as industrial giants race to meet the surging demand. In general, investors have rewarded the effort. “But,” as Matthew posed, “what happens when the pressure to build doesn’t come from customers but from competitors?” We may soon find out.
It is, quite literally, the stuff of science fiction, the kind of space-based solar power plant that Isaac Asimov imagined back in 1940. But as Heatmap’s Katie Brigham reported in an exclusive this morning, the space solar company Overview Energy has emerged from stealth, announcing its intention to make satellites that will transmit energy via lasers directly onto Earth’s power grids. The company has raised $20 million in a seed round led by Lowercarbon Capital, Prime Movers Lab, and Engine Ventures, and is now working toward raising a Series A. The way the technology would work is by beaming the solar power to existing utility-scale solar projects. As Katie explained: “The core thesis behind Overview is to allow solar farms to generate power when the sun isn’t shining, turning solar into a firm, 24/7 renewable resource. What’s more, the satellites could direct their energy anywhere in the world, depending on demand. California solar farms, for example, could receive energy in the early morning hours. Then, as the sun rises over the West Coast and sets in Europe, ‘we switch the beam over to Western Europe, Morocco, things in that area, power them through the evening peak,’” Marc Berte, the founder and CEO of Overview Energy, told her. He added: “It hits 10 p.m., 11 p.m., most people are starting to go to bed if it’s a weekday. Demand is going down. But it’s now 3 p.m. in California, so you switch the beam back.”
In bigger fundraising news with more immediate implications for our energy system, next-generation geothermal darling Fervo Energy has raised another $462 million in a Series E round to help push its first power plants over the finish line, as Matthew wrote about this morning.
When Sanae Takaichi became the first Japanese woman to serve as prime minister in October, I told you at the time how she wanted to put surging energy needs ahead of lingering fears from Fukushima by turning the country’s nuclear plants back on and building more reactors. Her focus isn’t just on fission. Japan is “repositioning fusion energy from a distant research objective to an industrial priority,” according to The Fusion Report. And Helical Fusion has emerged as its national champion. The Tokyo-based company has signed the first power purchase agreement in Japan for fusion, a deal with the regional supermarket chain Aoki Super Co. to power some of its 50 stores. The Takaichi administration has signaled plans to increase funding for fusion as the new government looks to hasten its development. While “Japan still trails the U.S. and China in total fusion investment,” the trade newsletter reported, “the policy architecture now exists to close that gap rapidly.”
Another day, another emerging energy or climate technology gets Google’s backing. This morning, the carbon removal startup Ebb inked a deal with Google to suck 3,500 tons of CO2 out of the atmosphere. Ebb’s technology converts carbon dioxide from the air into “safe, durable” bicarbonate in seawater and converting “what has historically been a waste stream into a climate solution,” Ben Tarbell, chief executive of Ebb, said in a statement. “The natural systems in the ocean represent the most powerful and rapidly scalable path to meaningful carbon removal … Our ability to remove CO2 at scale becomes the natural outcome of smart business decisions — a powerful financial incentive that will drive expansion of our technology.”
The Series E round will fund the enhanced geothermal company’s flagship Cape Station project.
The enhanced geothermal company Fervo is raising another $462 million, bringing on new investors in its Series E equity round.
The lead investor is a new one to the company’s books: venture capital firm B Capital, started by Facebook co-founder Eduardo Saverin. Fervo did not disclose a valuation, but Axios reported in March that it had been discussing an IPO in the next year or two at a $2 billion to $4 billion valuation.
Much of the capital will be devoted to further investments in its Cape Station facility in Utah, which is due to start generating 100 megawatts of grid power by the end of 2026. A smaller project in Nevada came online in 2023.
Fervo’s last equity round was early last year, when it raised $255 million led by oil and gas company Devon. It also raised another $206 million this past summer in debt and equity to finance the Cape Station project, specifically, and reported faster, deeper drilling numbers.
“I think putting pedal to the metal is a good way to put it. We are continuing to make progress at Cape station, which is our flagship project in Southwest Utah, and some of the funding will also be used for early stage development at other projects and locations to expand Fervo’s reach across the Western U.S.,” Sarah Jewett, Fervo’s senior vice president of strategy, told me
“Enhanced geothermal” refers to injecting fluid into hot, underground rocks using techniques borrowed from hydraulic fracturing for oil and gas. Along with the geothermal industry as a whole, Fervo has found itself in the sweet spot of energy politics. It can provide power for technology companies with sustainability mandates and states with decarbonization goals because it produces carbon-free electricity. And it can host Republican politicians at its facilities because the power is 24/7 and employs labor and equipment familiar to the oil and gas industry. While the Trump administration has been on a warpath against solar and (especially) wind, geothermal got a shoutout in the White House’s AI Action Report as an electricity source that should be nurtured.
“Being clean and operating around the clock is just a really strong value proposition to the market,” Jewett said. “Utilizing an oil and gas workforce is obviously a big part of that story; developing in rural America to serve grids across the West; producing clean, emissions-free energy. It's just a really nice, well-rounded value proposition that has managed to maintain really strong support across the aisle in Washington despite the administration shift.”
But bipartisan support on its own can’t lead to gigawatts of new, enhanced geothermal powering the American west. For that Fervo, like any venture-backed or startup energy developer, needs project finance, money raised for an individual energy project (like a solar farm or a power plant) that must be matched by predictable, steady cashflows. “That is, obviously the ultimate goal, is to bring the cost of capital down for these projects to what we call the ‘solar standard,’’’ Jewett said, referring to a minimum return to investors of below 10%, which solar projects can finance themselves at.
While solar power at this point is a mature technology using mass-manufactured, standardized parts having very good foreknowledge of where it will be most effective for generating electricity (it’s where the sun shines), enhanced geothermal is riskier, both in finding places to drill and in terms of drilling costs. Project finance investors tend to like what they can easily predict.
“We are well on our way to do it,” Jewett said of bringing down the perceived risk of enhanced geothermal. “This corporate equity helps us build the track record that we need to attract” project finance investors.
Whether enhanced geothermal is price competitive isn’t quite clear: Its levelized cost of energy is estimated to be around twice utility scale solar's, although that metric doesn’t give it credit for geothermal’s greater reliability and lack of dependence on the weather.
While Cape Station itself is currently covered in snow, Jewett said, construction is heating up. The facility has three power plants installed, a substation and transmission and distribution lines starting to be put up, putting the facility in line to start generating power next year, Jewett said.By the time it starts generating power for customers, Fervo hopes to have reduced costs even more.
“Cost reductions happen through learning by doing — doing it over and over and over again. We have now drilled over 30 wells at the Cape Station field and we’re learning over time what works best,” Jewett said.
Overview Energy has raised $20 million already and is targeting a Series A early next year.
When renowned sci-fi author Isaac Asimov first wrote about space-based solar power in the 1940s, it helped inspire engineers and the federal government alike to take the idea seriously. By the 1970s, a design had been patented and feasibility studies were underway. But those initial efforts didn’t get far — challenges with launch costs, constructing the necessary structures in space, and energy conversion efficiency proved too much for scientists to overcome.
Now the idea is edging ever closer to reality.
The space solar company Overview Energy emerged from stealth today, announcing its intention to make satellites that will transmit energy via lasers directly onto the Earth’s grid, targeting preexisting utility-scale solar installations. The startup has already raised $20 million in a seed round led by Lowercarbon Capital, Prime Movers Lab, and Engine Ventures, and is now working on raising a Series A.
The core thesis behind Overview is to allow solar farms to generate power when the sun isn’t shining, turning solar into a firm, 24/7 renewable resource. What’s more, the satellites could direct their energy anywhere in the world, depending on demand. California solar farms, for example, could receive energy in the early morning hours. Then, as the sun rises over the West Coast and sets in Europe, “we switch the beam over to Western Europe, Morocco, things in that area, power them through the evening peak,” Marc Berte, the founder and CEO of Overview Energy, explained. “It hits 10 p.m., 11 p.m., most people are starting to go to bed if it’s a weekday. Demand is going down. But it’s now 3 p.m. in California, so you switch the beam back.”
That so-called “geographic untethering” will be a key factor in making all of this economically feasible one day, Berte told me. The startup is targeting between $60 and $100 per megawatt-hour by 2035, when it aims to be putting gigawatts of commercial space solar on the grid. “It’s 5 o’clock somewhere,” Berte told me. “You’re profitable at $100 bucks a megawatt-hour somewhere, instantaneously, all the time.”
Making the math pencil out has also meant developing super-efficient lasers and eliminating all power electronics on its custom spacecraft. The type of light Overview beams to earth — called “near-infrared” and invisible to the naked eye — is also very efficiently converted into electricity on a solar cell. While pure sunlight is only converted at 20% efficient, near-infrared light is converted at 50% efficiency. Thus, Overview enables solar panels to operate even more efficiently during the night than during the day.
Today, the startup also announced the successful demonstration of its ability to transmit energy from a moving aircraft to a ground receiver three miles below — the first time anyone has beamed high power from a moving source. Although Overview’s satellites will eventually need to transmit light from much farther away — around 22,000 miles from Earth — the test proved that the fundamental technical components work together as planned.
“There’s no functional difference from what we just did from an airplane to what we’re going to do in 10 years at gigawatts from space,” Berte told me. “The same beacon, the same tracking, the same mirror, the same lasers, all the same stuff, just an airplane instead of space.”
Overview’s ultimate goal is ambitious to say the least: It’s aiming to design a system that can deliver the equivalent of 10% to 20% of all global electricity use by 2050. To get there, it’s aiming to put megawatts of power on the grid by 2030 and gigawatts by the mid-2030s. Its target customers include independent power producers, utilities, and data centers, and the company currently has a SpaceX launch booked for early 2028. At this point, Berte says Overview will likely be starting up its own prototype production line, which it will scale in the years to follow.
That certainly won’t be a simple undertaking. To produce a gigawatt of power, Overview will need to deploy 1,000 huge satellites, each measuring around 500 to 600 feet across and weighing about 8 to 10 tons. The largest satellites currently in space are about 100 to 150 feet across, and roughly 5 to 10 tons. “No one really mass-manufactures satellites in the kind of quantities required,” Berte explained, and nobody is producing the design and form factor that Overview requires. “So we are going to have to in-source a lot of the integration for that.”
But while the startup’s satellites will span the length of about two football fields, they fold up neatly into a package about the size of a shipping container, making it possible for them to fit on a SpaceX rocket, for example. When the satellites beam their power down to Earth, they’ll target a beacon — also shipping container-sized — that will be placed in the middle of the solar farm.
Initially, Berte told me, Overview will target deployment in places where logistical challenges make energy particularly expensive — think Alaska or island states and territories such as Guam, Hawaii, and Puerto Rico. But first, the company must demonstrate that its tech works from thousands of miles away. That’s what the funding from its forthcoming Series A, which Berte expects to close in spring of next year, is intended for.
“That is to take us to the next step, which is now do it in space. And after that, it’s now do it in space, but big,” he told me. “So it’s crawl, walk, run, but most importantly, the technology and how you do it doesn’t change.”