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Robinson Meyer:
[1:25] It is Friday, February 20. The Trump administration made two big changes at the Environmental Protection Agency last week. The first, which we talked about last show, was that it revoked the endangerment finding, which is the key legal document that allows the EPA to regulate carbon dioxide and other greenhouse gases. The second is that it revoked what are sometimes called the clean car rules. These are the EPA’s greenhouse gas rules for cars and light-duty trucks. Now, this second change was a big deal, and in some ways, I think a bigger deal than maybe the amount of attention that it got. Because it’s part of a multi-front war on fuel efficiency standards from the Trump administration. It maybe hasn’t gotten a lot of attention, but by the end of this year, the U.S. Will probably not regulate fuel mileage or vehicle efficiency in any way. We’ll essentially be back to the days of the early George W. Bush administration, when automakers could sell as many Hummers as they wanted. Now, the repeal effort legally from Trump relies on a number of economic arguments. The most important of these is the EPA’s argument that it will save the public more money than it costs to roll these rolls back. The EPA says we’ll get about $1.3 trillion worth of benefits from this rollback. Now some of the assumptions behind this finding are contested and some are ideological. Some are, I think, wrong.
Robinson Meyer:
[2:41] Some are just outdated. So today, I wanted to talk to an economist about one of the most important claims in the Trump repeal and why it is no longer in touch with the economics literature.
Robinson Meyer:
[2:51] We’ll also chat about the broader set of economic arguments the Trump administration is making. Our guest today is Ken Gillingham. He’s a professor of economics at Yale and a former senior economist for energy and the environment at the White House Council of Economic Advisors. My conversation with him is coming up. And then in the back half of the show, I talked to Hannah Hess, an associate director at the Rhodium Group about new data on how clean energy investment in the United States held up through the end of last year, and why it’s kind of a tale of two industries in America right now. The clean electricity sector is booming, while the electric vehicle supply chain is falling apart. So in this episode, it’s all about cars and EVs and how we regulate them in the US, call it our Car Talk episode, and it’s all coming up today on Shift Key.
Robinson Meyer:
[3:38] Ken Gillingham, welcome to Shift Key.
Kenneth Gillingham:
[3:41] Pleasure to speak with you, Robinson.
Robinson Meyer:
[3:43] So the Trump administration comes out with its big greenhouse gas endangerment finding repeal last week. It’s kind of like a two-part document, as we talked about in the past episode. So on the one hand, it’s an argument that the EPA should not regulate greenhouse gases as dangerous pollutants. But then the second part of it is, an argument basically entirely about tailpipe greenhouse gas standards about whether the epa should be regulating greenhouse gases that come out of cars and trucks and the epa argues as you might expect that it shouldn’t i will say that the second Trump administration just like the first Trump administration has to put out a fairly lengthy analysis of why it has reached this conclusion and even though the president during his press briefing announcing this change called global warming, a giant scam. That fact does not feature in their analysis. They take a different approach. They also, as they did in the first Trump administration, actually cite your work all across the analysis. They love to cite your work on the greenhouse gas standards. So can you just give us a sense of like, what did you think about the analysis that you’ve seen from the Trump administration and their legal justification for rolling back the vehicle rules so far.
Kenneth Gillingham:
[4:59] Right. It was a very simplistic analysis in many respects. They simply took the 2024 analysis that was done under the Biden administration, EPA, and they made a set of tweaks. These tweaks happen to have enormous ramifications. The biggest one, of course, is removing the endangerment finding and eliminating greenhouse gases. That is an enormous one. But there are other tweaks that they made. They changed the expected future gasoline price. They changed how they value future fuel savings when people buy a more efficient car.
Robinson Meyer:
[5:39] Can you walk us through a little bit more? So what are the most important of the tweaks that they made? And kind of what message are they trying to send with those tweaks?
Kenneth Gillingham:
[5:49] Well, one message they’re sending is that greenhouse gases don’t matter, other air pollutants don’t matter, and that’s an obvious message. This has been talked about a lot. The other message they’re sending is that consumers, when they’re buying a car, make a decision and fully value the future fuel savings. When you make that assumption, you’re basically saying that consumers fully value the future fuel savings. And because they’re already incorporating the benefit in their decision, they get no benefit from a rule that nudges them into a more efficient car. Those both are pivotal. Either of those two would change the net benefits of the rule. And they’re both huge, many, many millions of dollars, trillions of dollars.
Robinson Meyer:
[6:38] When I started out as an environmental reporter, there was this idea about energy efficiency rules. And I think especially efficiency rules around cars and trucks, which to be clear about what a greenhouse gas standard is when you’re talking about cars and trucks, it really just is a type of energy efficiency rule. And the idea that I heard from researchers, from economists, is that you need some kind of efficiency regulation because this is a market failure, because consumers don’t take into account all the literal monetary benefits they’re going to get from buying a more efficient an appliance or a more efficient car when they make the purchase. It just doesn’t factor into their calculus. And so you need the government to kind of push appliance makers or push car makers toward more efficient products, because otherwise, not only are you going to have consumers maybe not fully maximizing their welfare, so to speak, by buying, you know.
Robinson Meyer:
[7:32] More gas guzzling cars than they should, but also like as a country, you’re going to consume much more gas. And that means that gas prices are going to be higher. And that means even people who make more efficient vehicle purchases are going
Robinson Meyer:
[7:44] to have to pay more for gas, right? It’s this big systematic problem. What I was not aware of is that the economics literature about that finding and that idea has kind of shifted under our feet a few times over the past decade. And that while that might have been the state of the art in 2008, it had kind of changed by the middle of last decade. and now it might have changed again. So can you just update us on like, First of all, was my summary correct? And second, then, like, how did economists change their mind?
Kenneth Gillingham:
[8:24] Yes, your summary is spot on. It’s been long understood that when regular people, anyone goes to a store, consumers go to a store and buy a more efficient appliance or buy a more efficient car, that they appear to value only to some degree the future fuel savings or energy bill savings they would get from the more efficient appliance or more efficient car. This is often called the energy efficiency gap. People have written on it for years. In the car context, there’s a longstanding understanding in the industry, as well as from National Academy’s reports and other sources, that consumers value roughly 2.5 to 3 years, somewhere in that ballpark, of future fuel savings when they purchase a car. Why don’t they value the rest? Well, people usually attribute it to some behavioral feature of the way we make decisions. Which often people use the word inattention. So for example, they might be inattentive to those future fuel savings and really be focusing on just a few attributes of the cars.
Robinson Meyer:
[9:34] We kind of assume that consumers, they buy a new car for a decade or for 12 years. I think the average car on the road now is something like 13 years old. But when they buy the car, as you were saying, they’re only thinking of that first three and a half years. And so all the fuel savings from the back seven or the back nine, just don’t factor into their kind of internal vehicle purchasing function at all.
Kenneth Gillingham:
[9:59] That’s right. And that’s how people had thought about it, that people really paying attention to the first two and a half or three years, and ignoring the remaining nine or so years in that life of the car. And that provides a motivation for policy. If you truly have people who don’t value those future fuel savings, they’re certainly going to value it when they go to the pump and fill up their car with gasoline. There’s no question about that. Everyone agrees that they value it at the time that they’re actually filling up their car with gasoline, but they might not have valued it when they were making that car purchase. That’s kind of fundamentally a strong and longstanding motivation for fuel economy standards. So it may not be surprising that the Trump administration, in trying to rescind the standards, attacked that head on and tried to effectively roll that assumption back as well as rolling back the environmental greenhouse gas engagement finding.
Robinson Meyer:
[10:49] This has changed a little bit. So back maybe around the time of the first Trump administration, the economic literature had shifted somewhat on this question. So, Let’s just roll the clock back to 2015 or 2016. At that point, the Obama era standards had been in effect for some time. Where was the field of economics thinking about the efficiency gains from efficiency-based regulation in cars?
Kenneth Gillingham:
[11:18] That’s a great question. A series of papers came out in the early 2010s, either as working papers initially, and then they were published in those subsequent years. So if you were asking even me around 2015, I would have said, well, it does appear that consumers do value a lot of the future fuel savings and perhaps nearly all of the future fuel savings. If that is the case, that pulls out one of the key motivations for fuel economy standards or vehicle greenhouse gas standards that save fuel. It makes it harder for those standards to look to have positive net benefits.
Robinson Meyer:
[11:52] And I should say that neither the CAFE standards, which are come from the Department of Transportation and regulate fuel mileage, nor the EPA greenhouse gas standards, which regulate the number of the amount of tons of carbon that come out of the car, like the truck tailpipe. They’re not cost free, right? They cost. I mean, at least as of the time of the first Trump administration, they cost like they added to the cost of vehicles by about a thousand dollars or twelve hundred dollars a vehicle on average. Now, consumers saved that over the life of the vehicle many times over. But if consumers are already taking into account those efficiency gains, then that trade-off that the rules kind of forced consumers in maybe weren’t worth it. Before we move on to where we are now, just staying in this 2015 zone …
Robinson Meyer:
[12:39] How did the literature reach this conclusion? What methodology were economists using to say, actually, consumers take all the fuel savings into account when they make a purchasing decision?
Kenneth Gillingham:
[12:49] It’s a great question. So conceptually, they were looking at prices and quantities of vehicles. And they were looking at cases where you had, for some reason, the efficiency was improved. So there was some way, some exogenous way that efficiency was improved. And then looking at how the prices on the market re-equilibrated. And in particular, this was used for used cars. So much of the early 2010 literature that we’re talking about here brings in used cars and new cars. But importantly, it is including used cars and looking at how used car prices change with efficiency changes. Some of the literature was new cars as well, but they were generally finding relatively high valuation ratios.
Robinson Meyer:
[13:34] Give us an example. Is this like consumers, when they were buying a Prius, took into account all the fuel savings from that Prius as compared to like, say, a Toyota Tacoma, like the Prius price included this premium for fuel efficiency?
Kenneth Gillingham:
[13:50] That’s exactly right. Conceptually, you could see it as in the Prius context, the price of the Prius incorporated all of those future fuel savings over the expected life of the vehicle.
Robinson Meyer:
[14:02] That is interesting, because it is true that when you look on Carvana or something, or you look at the cars.com app, two places that I have spent some amount of time in my life, you do see that Prius, used Prius prices are like much higher than sedans of similar size. I mean, it’s a Toyota too, so it gets a kind of premium in the used market anyway. But there is some kind of premium that people assign to cars that get better fuel mileage. So do economists still think this? like do you think the consumers take into account all of those fuel savings when they buy a new car not.
Kenneth Gillingham:
[14:35] All of those fuel savings so I think your questions are a really great one it’s consumers definitely value to some degree future fuel savings. There’s no question about that. Everyone sees it. You can see it in the Prius, although it is a Toyota that does higher retail values, but you can see it across the board. The question is how much of those future fuel savings? You can go back to the original literature that said 2.5 years or three years. That would indicate that there’s a substantial undervaluation of the future fuel savings you could get over the life of the vehicle.
Kenneth Gillingham:
[15:06] More recent evidence has started to come to the conclusion that the previous evidence, that 2.5 or 3 years, was much closer to being correct than the early 2010 articles. And there are two reasons for this. One reason for this is that the newer articles are using updated empirical designs, more careful statistical approaches. I want to emphasize, it’s not easy to estimate this parameter. There are a lot of other variables that influence how people make decisions about cars in terms of all the other attributes of the vehicles, but also the brand, the timing, the gasoline price, all of these things matter.
Kenneth Gillingham:
[15:51] Expectations about gasoline prices matter. This is a very difficult parameter to estimate. So there have been, I would say, improvements in the empirical design of recent studies that I think have helped. That’s the first one. The second reason why we generally are seeing different estimates is that people are being a little bit more careful about whether they take the average of a ratio or the ratio of averages. It’s a subtle point and seems quite minor. Fundamentally, the valuation of those future fuel savings is a ratio. We’re talking about, do they value 50%? Do they value 90%? Do they value 100%? That is a ratio in the sense of the amount that they value over the total amount of future fuel savings.
Kenneth Gillingham:
[16:43] That needs to be handled very carefully in empirical designs. When you correct for that, some of the old studies had to have no problem, but some of them did have some problems. When you correct for that, you actually end up getting similar numbers in some of the previous studies to what we’re finding in the newer studies.
Robinson Meyer:
[17:03] Yeah, basically, we’ve swung all the way back. So literally, there was a mathematical error in some of these studies and how they calculated the percentage of how much people valued the fuel savings. And if you correct for that error, then you swing right back to where the literature used to be.
Kenneth Gillingham:
[17:20] I’m not going to say negative things about my fantastic co-authors and friends, but that’s how science evolves. That’s how we continue learning.
Robinson Meyer:
[17:29] What kind of assumptions did the Trump administration make about fuel prices in its proposal? I mean, does it think that fuel prices are going to get more expensive? Because part of the whole calculus of these rules is that basically, yeah, people like saving fuel when oil is cheap, but they really like saving fuel when oil is expensive. Do they include some predictions about whether gas is going to get more or less expensive in their rulemaking?
Kenneth Gillingham:
[17:56] Well, in the proposed rule for the EPA vehicle greenhouse gas standards, they made one of the assumptions that is one of my favorite assumptions in the entire rule. They arbitrarily said, because there’s an energy dominance agenda, that fuel prices were going to be much, much lower, and thus the benefits from future fuel savings were going to be much, much lower. To their credit, that was entirely unjustified, would never hold up in court, and they removed it in the final rule. In the final rule, they’re using within reason, but very low fuel price, alternative fuel baseline from the Energy Information Administration. And so they still are using a lower number than one might argue, but it’s no longer quite as egregious as it was in the proposed rule.
Robinson Meyer:
[18:40] You had a relatively important paper on the CAFE standards a few years ago at this point and about how the fuel efficiency standards kind of interrelated with the used car market that I continue to think is this really interesting finding that kind of maybe helps people understand why fuel economy is a tough thing to regulate, a very important thing to regulate, but still has these tough follow on effects you might not predict. Can you just describe it to us for a second?
Kenneth Gillingham:
[19:06] So about 10 years ago, Hyundai and Kia stated that their fuel economy was much higher than it actually was. And then suddenly, on one day, they restated their fuel economy. We had transaction price data and we could immediately see how transaction prices for those cars that had their fuel economy restated changed relative to prior, as well as relative to other vehicles in Hyundai and Kia, as well as other similar models by other automakers that did not see this change. In their stated fuel economy.
Robinson Meyer:
[19:38] And what do you find?
Kenneth Gillingham:
[19:40] We found that consumers undervalue fuel economy. It’s actually not too far from the, it’s right in line with the two and a half to three year payback period. So about a 23% or 30% undervaluation. So people value about 23% to 30% of future fuel savings, which means that there’s still 70% to 77% that they don’t value.
Robinson Meyer:
[20:04] There’s a few different things that have happened in the fuel economy rules lately, and I think it’s actually worth putting them all together. So, you know, the US regulates the efficiency of its internal combustion vehicles in two ways. Basically, we had the EPA greenhouse gas standards, those regulated greenhouse gases coming out of tailpipes. But then we also had this much older set of standards from the Department of Transportation called the CAFE standards, which regulate the collective fuel economy of new vehicles. And I think what people may not have realized is that the Trump administration has basically effectively eliminated both of these programs. The One Big Beautiful Bill Act reduced the penalties for the CAFE standard, the Department of Transportation, the older standard to zero. So automakers will not be fined for violating the CAFE standards on the one hand. On the other hand, the EPA is now in the process of trying to repeal not only the greenhouse gas standards for vehicles, but in fact, the idea that it should regulate greenhouse gases altogether. Is there any precedent for the US not having fuel economy or engine efficiency or gas mileage standards of any kind in the historical record? And like, what could we predict will happen from the fact that the US will now no longer have standards of this kind, at least for the next few years?
Kenneth Gillingham:
[21:28] So you’re completely correct that as of now, we effectively do not have standard or as of the finalizing of the CAFE rule, I should really say, because there are two pieces here. Congress and their one big, beautiful bill eliminated the penalties for violating the CAFE standard, which is Corporate Average Fuel Economy standard. In addition, they came out in December with a proposed rule, which made the increase in the standard so minimal that it’s effectively non-binding. So there is actually an increase in the standard. Legally, I think they felt they had to do that. But it’s basically a minimal increase. So there will be non-binding. By non-binding, I just mean they’re ineffective. They’re not doing anything.
Robinson Meyer:
[22:13] And crucially, that really kills the trading market, right? Right. Because the way that EV companies like Tesla, but now like Rivian and Lucid, too, made a good deal of their regulatory income. And for Tesla, some key early profits was by selling credits from their cars, like regulatory credits from their cars to GM, to Nissan, to these producers of these big gas guzzling cars. So they’ve killed a key revenue driver for the all electric automakers as well.
Kenneth Gillingham:
[22:42] That’s right. The proposed rule eliminates something that economists have been pushing for, which is to allow for trading. That came about from Republican economists actually were the ones who made that happen initially. And the trading lowers the costs of compliance. And so they eliminated it, which also is a shot below the bow for all of the EV companies because now they are no longer going to make money from this trading. So it’s an additional hit there. So you’re completely right that with the finalization of the CAFE rule, as expected, in the next few months, we’ll enter a phase with effectively no standards on cars. We have been there in the past. You can go back to before there were standards, before the oil crisis in the 1970s, and cars were very big and very inefficient. Cars are actually bigger today, but they were very inefficient, extremely inefficient. There also are periods, long periods, especially in the 80s, when standards stayed pretty flat. And here I’m talking about corporate average fuel economy standards before 2009, when the EPA vehicle greenhouse gas standard was implemented. So corporate average fuel economy standards, when they were flat, basically we didn’t see much improvement in fuel economy, minimal improvement in fuel economy for years on end.
Robinson Meyer:
[24:02] And did things get worse or they just kind of stayed flat?
Kenneth Gillingham:
[24:05] Stayed flat. They stayed flat. But there was a technology improvement during this time. Just all that technology improvement was poured into increasing horsepower, increasing acceleration, et cetera.
Robinson Meyer:
[24:18] I find this to be one of the most interesting conversations about the whole deal here, because people do look at these standards of the past 10 years and they say, look, cars have gotten bigger during that time. Horsepower has gone up. And because of that, we actually haven’t seen some of the efficiency gains that we once anticipated seeing at the moment the Obama standards were put into place. Basically, like the increasing size of vehicles mostly has kind of eaten into some of those gains. But it seems to me that like we see horsepower improvements and we see vehicles get bigger during periods of time when there are no standards and fuel economy does not improve. And so if we see horsepower improvements and we also see vehicles get bigger and fuel economy does improve, that suggests the fuel economy standards actually did work at least a little bit.
Kenneth Gillingham:
[25:06] It is all about what would have happened otherwise. And I think you’re hitting it on the nose here that we would have seen even potentially larger vehicles and even potentially less efficient vehicles had it not been for the standards. So I think that it’s simply false to say that the standards didn’t do anything because horsepower has gotten larger, because cars have gotten heavier, which is true. Cars have gotten heavier. Horsepower has increased. A lot of it is a switch to SUVs and light trucks and crossovers. That is an ongoing shift. But that would have happened anyway. There are features of the design of standards that may lead to, if you have a lighter standard or more relaxed standard for certain types of vehicles, such as SUVs and light trucks, that provides an incentive to sell SUVs and light trucks. That design feature may have enhanced the upscaling, but the automakers make
Kenneth Gillingham:
[26:03] more money on the big vehicles. They were going to upscale anyway.
Robinson Meyer:
[26:06] Here’s the last question, which is when you look at the assumptions in the rulemaking, when you look at the errors, you know, the agencies have to do this cost benefit analysis when they make a rule change. And without getting too into the weeds, the agency has to prove to the courts, to the American people, that when it changes a regulation, either strengthening a regulation or weakening a regulation is the Trump administration is doing here, that the benefits of that change exceed the costs.
Kenneth Gillingham:
[26:33] Can I just interrupt there? There is a possibility that you can have a net negative benefit policy. You just need to justify it from other legal pathways. Historically, in the courts, it has been very difficult to win a court case when net benefits are negative.
Robinson Meyer:
[26:48] So perfect entree then. When you look at the assumptions made by the Trump administration in their cost benefit analysis, do you believe that if they were updated to reflect more accurate assumptions that the benefits would still exceed the cost of the rule?
Kenneth Gillingham:
[27:03] Oh, far from it. The benefits would be very negative. In fact, even in some of their own scenarios, the net benefits are negative. So it’s pretty clear that the net benefits would not be positive from this rule. I’m sure they know this. The decision to rescind the rules was made before the analysis and the analysis had to follow.
Robinson Meyer:
[27:23] Well, as the legal fight over these rules keeps developing and the economic discussion of the assumptions made in the legal documents. We will keep in touch with you. Ken Gillingham, thank you so much for joining us on Shift Key.
Kenneth Gillingham:
[27:35] It’s a pleasure. Thank you.
Robinson Meyer:
[29:13] And joining us now is Hannah Hess. She’s an associate director at the Rhodium Group. Hannah, welcome to Shift Key.
Hannah Hess:
[29:19] Thank you so much. I’m excited to be here.
Robinson Meyer:
[29:21] So every quarter, the Clean Investment Monitor, which is a project of the Rhodium Group and MIT Center for Energy and Environmental Policy Research, has published this summary of all the investment that happened across the clean energy economy over the past quarter, which means that at this point, it’s a pretty good data source and give us a guide to what’s been happening in the clean energy economy since the Inflation Reduction Act era, or at least since the IRA era began. The Q4 2025 report just came out. Can you give us the top line of what it found?
Hannah Hess:
[29:55] Sure. So we’ve been tracking clean investment since about a year after the IRA passed, but our baseline of data goes all the way back to the first quarter of 2018. We find that in Q4, clean investment softened a little bit after a record high Q3 2025 that was largely driven by people purchasing EVs. When we zoom out and look at the full year 2025, we find that it was a record year for clean investment, up 5% from 2024.
Robinson Meyer:
[30:31] So Q3, huge quarter driven by EV purchases, and that’s probably driven especially by the expiring of the IRA demand side tax credits for EV purchasing. Q4, a little soft. One thing I saw in the report was that Q4 2025 is like the first quarter really in the data set that was softer than the quarter a year earlier, right?
Hannah Hess:
[30:56] Yeah. So Q4 is the first instance in our tracking of negative quarter on year growth and clean investment. So since the beginning of this data set, every time we look back at the level observed in the same time period the previous year, it would be an increase even when there was some fluctuation from quarter-on-quarter. And so that would tell us overall this segment is still strong and it’s a good sign that clean investment continues to expand. But that trend ended in Q4 2025 when investment declined 11% from the level that was observed in the last quarter of 2024. New project announcements also softened. So in addition to tracking how much investment is occurring in the construction of new facilities and in those consumer purchases of clean technologies like EVs, heat pumps, rooftop solar, we’re also looking at what developers are doing, how much new projects they’re announcing each quarter. New announced manufacturing projects totaled $3 billion in Q4 2025, which was down 48% both from the previous quarter and year-on-year, and that $3 billion of new manufacturing projects is the lowest quarterly level since Q4 2020.
Hannah Hess:
[32:18] Looking at the full year, announcements for new manufacturing projects were down 26% compared to 2024. So all of these are just signs that the manufacturing segment, which is largely driven by the EV supply chain, is weakening.
Robinson Meyer:
[32:36] I want to talk more about that, but can you zoom out for a second and just tell us what is encompassed by the term clean investment? What sectors are we talking about and what sectors maybe are we not talking about here?
Hannah Hess:
[32:49] So the Clean Investment Monitor tracks investment in three segments of the economy. That’s clean tech manufacturing. So within the EV supply chain, it’s batteries, it’s vehicle assembly, it’s critical minerals processing projects. We also track the manufacturing of solar components, wind components, and electrolyzers for hydrogen. We have a second segment that’s energy and industry, and that lumps together clean electricity, solar, storage, wind, as well as industrial decarbonization projects, which is a much smaller segment. That’s investments in clean products like clean cement and clean steel, as well as sustainable aviation fuels and hydrogen production. And then the final segment of clean investment, we call retail, and that’s small businesses and household purchases of clean technologies that’s, for the most part, EVs and also heat pumps and distributed solar. The thing weaving all of these technologies together is that they were all incentivized by the Inflation Reduction Act. But broadly, we just say investments in the manufacture and deployment of emissions reducing technologies.
Robinson Meyer:
[34:04] What drove the decline in investment last quarter? And a decline not only in real investment, but in investment momentum and the number of announcements people are making. What drove that?
Hannah Hess:
[34:15] So EV purchasing fell off a cliff compared to Q3 2025. And because those retail segment purchases, just like the overall US economy, consumer spending drives most of the clean investment. That was a big dip. But what I view as a more concerning trend is this is the fifth consecutive quarter of decline in clean manufacturing investment. And announcements of new manufacturing projects were exceeded by cancellations of new manufacturing projects. So that’s the pipeline shrinking. And that is concerning for not only what’s happening in Q4, but when we look out for the next couple of years, what is the clean tech manufacturing supply chain look like? What is the U.S. workforce for clean tech manufacturing look like? Lots to unpack there.
Robinson Meyer:
[35:12] The Detroit-based automakers, Ford GM and Stellantis, announced a $50 billion charge combined on their EV investments over the past few months. And we’ve seen a number of them announce that their big flagship projects, like Blue Oval City from Ford in Tennessee, are going to be reoriented from building EVs and batteries to building large internal combustion vehicle trucks. In the data, does it seem like these big by the largest kind of final assembly automakers are driving the bulk of these cancellations? Are you seeing weakness like down further in the supply chain where it’s these individual, you know, parts makers or component makers who make up the actual bulk of the industrial economy who are now experiencing trouble? It’s not just these big, you know, charismatic firms at the top.
Hannah Hess:
[36:13] When I look at all of the cancellations that occurred in cleantech manufacturing in 2025, ranked from the highest value to the lowest value. Top three, General Motors, Stellantis, Ford. But then we see Gotion, FREYR Battery, Core Power, some smaller battery manufacturing projects that while they’re not at the three or four billion level, they really do add up to this record high cancellations that we saw in 2025. I think an important way to contextualize the cancellations also is just to
Hannah Hess:
[36:53] say that when we zoom out, 97% of all the canceled investment in 2025 was in the EV supply chain. That’s a total of $22 billion of canceled projects. And that exceeded the $21 billion of announced projects. So this is really a broader story, I think, than just those big three automakers.
Robinson Meyer:
[37:15] So that’s the bad news. Was there any good news in the data from last quarter?
Hannah Hess:
[37:21] I would love to share a little bit of good news. And that is that clean electricity is holding up better than manufacturing. Solar and storage are really the workhorses when it comes to clean investment. One thing I think is important when you look at this story is to note that the pullback that we’re seeing in clean investment isn’t across the board. Investment in clean electricity was $101 billion over the course of 2025, and that’s up 18% compared to the previous year. We lumped together clean electricity and industrial decarbonization, but clean electricity was 96% of that total. Also, I think it’s important to call out that while we saw $9 billion canceled in the last quarter, that was in a pool of $22 billion worth of new investment announcements. So the pipeline of clean electricity is continuing to grow. And I think that’s a really important story here.
Robinson Meyer:
[38:24] Yeah, it’s so, I mean, this is what we see at Heatmap too. You know, investment in EVs, at least in the near term, has really collapsed. I mean, the EV story is just not what it was a few years ago. But the electricity story is popping off. It is crazy. I mean, it’s all about data centers, right? And it’s all about demand growth. At least that’s what we observed from our end. Maybe you’ve seen something different. but like the solar storage story is just enormous.
Hannah Hess:
[38:49] Truly, yeah. Solar and storage is the leading driver within energy and industry. In just the last quarter, we saw $18 billion worth of utility scale solar and storage installations, which was up about 10% from the same time last year.
Robinson Meyer:
[39:05] Cool. Well, thank you so much for joining us on Shift Key.
Hannah Hess:
[39:10] Thank you, Rob. It’s been really nice to talk.
Robinson Meyer:
[39:14] Shift Key is a production of Heatmap News. Our editors are Jillian Goodman and Nico Lauricella. Multimedia editing and audio engineering is by Jacob Lambert and by Nick Woodbury. Our music is by Adam Kromelow. See you next week.
Music for Shift Key is by Adam Kromelow.
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The Trump administration has asked a court to re-examine a key permit for Revolution Wind in Rhode Island.
This is Heatmap Daily, an evening news digest written by our executive editor. Subscribe here.
Updated, 11:05 p.m. ET
At the end of the day, the biggest threat to the bipartisan permitting deal probably isn’t green groups, the fossil fuel industry, or monopoly utilities. It’s President Trump himself.
The legislative proposal is meant to constrain the president from tampering with clean energy projects — and if it passes, then some of its provisions seem like they could do so. But in order for it to pass, Trump must adhere to the deal that he brokered with the bill’s Senate Democratic negotiators, Sheldon Whitehouse of Rhode Island and Martin Heinrich of New Mexico.
Under that deal, the Trump administration must allow the 30 wind farms held up by what is normally a Department of Defense box-checking exercise to proceed. (Trump himself agreed to allow these projects to move forward, according to Politico reporting from last month.) More broadly, the administration has to make a show of good faith that it will return to what Whitehouse has called “regular order” on wind and solar permits. That could include approving a longer list of more than 200 onshore wind projects held up in the queue.
That somewhat informal deal is now facing its biggest test yet. On Friday, the Department of Justice filed a motion in court to re-examine a key permit granted to Revolution Wind, a nearly complete offshore wind farm being built off the coast of Rhode Island. The filing was first reported by Bloomberg.
Revolution Wind is one of six Biden-era offshore projects that is now operating or at least still moving forward. It could eventually produce as much as 700 megawatts of electricity. (Other offshore wind projects have accepted Trump’s $4 billion payouts.)
This isn’t the first time that the Trump administration has gone after this particular offshore project: The White House fought, and then resoundingly lost, an effort to stop work on Revolution Wind last year. But the timing of the filing — and the fact that it’s happening in Senator Whitehouse’s backyard — could make this filing far more significant.
In a post on X, the White House energy official Jarrod Agen seemed to play down the legal move without fully disowning it.
“This is an old lawsuit brought by the local community—who had serious concerns about this project—against the Biden Administration!,” he wrote. (The lawsuit in question was filed by Green Oceans, an anti-wind-energy group. Its law firm has what The New York Times described as “close ties” to the conservative legal movement.)
The White House still supports permitting reform, Agen added, adding that “the media should stop their attempts to blow up a GREAT deal for the American people!”
Sorry, Jarrod — we’re just doing our job. After we initially published this story, Senators Whitehouse and Heinrich sent a joint statement: “Frankly, we need to get permitting certainty in law, and this proves it,” they said. “In the meantime, the administration needs to start showing good faith progress on wind permits.”
A bipartisan group of senators proposed major reforms to the country’s environmental laws last month in an effort to speed up the federal approval process for energy projects of all kinds. If it passes, one of the Bipartisan American Affordability and Jobs Act’s biggest changes would be transforming the U.S. court system’s role in federal environmental reviews.
The bill would constrain who can challenge federal environmental decisions in court, which courts can hear those challenges, what plaintiffs can argue in those cases, and what remedies are available when the plaintiffs win. In particular, it would become a lot more difficult — though not impossible — for outside groups to stop construction on a project or vacate a permit if they deemed it to be environmentally risky.
Part of the motivation for the bill, at least among Democrats, is the idea that the National Environmental Policy Act, or NEPA, has become a significant obstacle to building clean energy projects and the infrastructure required to connect them to the grid. The bill includes a number of changes to NEPA that would expedite environmental reviews and prevent legal challenges under NEPA from dragging out project timelines.
But the bill’s restrictions on judicial remedies may be the most significant change, several legal experts told me. “My perhaps overly simplistic view, perhaps a really cynical view, is that the remaining 100 pages of the bill devoted to NEPA are all going to be irrelevant in light of that remedy provision,” said Matthew Littleton, a lawyer who previously served as deputy assistant attorney general at the U.S. Department of Justice’s Environment and Natural Resources Division under the Biden administration.
NEPA is an information-gathering statute. It says that when the federal government makes certain decisions, such as issuing permits or regulatory rules, it must consult with all of the agencies with relevant expertise, invite public comment, and, if the decision could have significant effects on the environment, conduct a wide-ranging assessment of those effects that includes comparisons to alternative actions.
Depending on the decision at hand, the government may have to do some of this analysis under other environmental laws, such as the Clean Air Act and Clean Water Act, but those requirements are narrower. NEPA fills in the gaps. While a Clean Air Act analysis may look at whether a project complies with federal pollution limits, a NEPA analysis would assess the broader effects of the pollution on local communities and surrounding wildlife, and consider whether locating the project elsewhere could accomplish the same goals with reduced risk.
While NEPA can inform an agency’s decision, the law does not require the agency to act on that information. If a NEPA review of an oil leasing program turns up substantial risks, for example, the government can still move forward with it unchanged. If an environmental group sues the government for not considering all of the relevant impacts, or studying enough alternatives, or getting some aspect of the analysis wrong, however, the court can vacate the agency’s decision, or at least issue an injunction on the lease sale while the agency addresses the issue.
A Supreme Court decision last year already significantly narrowed NEPA, giving agencies more discretion to decide how much environmental analysis they need to do on a project’s upstream and downstream effects. Experts expected the ruling to make it much harder for outside groups to win an injunction on a project or vacate a permit.
The new bill would go much farther. If communities or other stakeholders sue the government for violating NEPA and win, the courts could no longer issue an injunction or vacate the government’s decision. The bill would leave the courts with a single remedy: forcing the agency to address whatever gap in its analysis the lawsuit revealed.
To Littleton, this change would make NEPA more or less irrelevant. Today, he explained, agencies and developers face the risk that if they do not do a thorough job complying with NEPA, the courts could suspend their decisions, vacate their permits, or pause construction on their projects. It’s hard to know how big of a role that risk plays in agency decision-making, but if it disappears, so too does the incentive for anyone to spend time on a NEPA analysis.
Agencies are under-resourced and have a lot on their plates, Littleton said. “If at the end of the day you know a court is not going to stop you, even if you completely ignore the statute, you’re going to take the action as quickly as you can, consistent with your other obligations.” In other words, the worst that could happen is that a federal court tells the relevant agency to go back and do some more paperwork while construction continues.
The bill would make the same changes to the National Historic Preservation Act, a similar procedural law that requires agencies to study a decision’s effects on properties of cultural or historic significance. “If Congress has decided that NEPA and the NHPA have outlived their usefulness or do more harm than good, people should be willing to own that and say it and explain why that’s so,” Littleton said. “And if it’s not so, then maybe they need to figure out how to have a far narrower NEPA or NHPA review, but something where it actually matters if you don't do it.”
To be clear, none of this means there will be no way to stop a project from being built or to vacate its permits. Outside groups can still challenge agency actions under the Administrative Procedure Act, Alex Mechanick, an assistant professor at Johns Hopkins and a former senior counselor in the Office of Management and Budget under the Biden administration, told me. The APA is a larger umbrella law that says agencies cannot violate the Constitution or federal regulations or act arbitrarily or capriciously.
“Arbitrary and capricious action is already unlawful under the APA and could lead to agency action being vacated or enjoined regardless of BAAJA,” Mechanick said. A court might find that an agency violated the APA if a decision had undeniably worse environmental costs than benefits, if a less damaging option offered the same benefits, or if the agency simply chose not to analyze a relevant aspect of the decision. If the Interior Department was considering a new oil and gas leasing plan and didn’t consider effects on local wildlife, a court might deem that arbitrary and capricious. If the agency studied those effects, found significant risks, and then ignored them entirely with no explanation, that could also constitute a violation of the APA.
Littleton didn’t disagree with Mechanick’s assessment. If the bill passes, he said, the NEPA process may become the mechanism agencies use to comply with the APA rather than an end in itself.
The bill makes a more far-reaching change to legal challenges under the Clean Water Act. That law requires developers to secure a Section 404 permit when their project involves placing dredged materials into a body of water or wetland. It asks the Army Corps of Engineers to collect public comments, analyze the environmental impacts, and evaluate alternatives — much like NEPA. In this case, however, the analysis is not just procedural. Depending on what it reveals, the Corps may be legally required to deny the permit.
As with NEPA and the NHPA, the Senate bill would remove a federal court’s ability to vacate a Section 404 permit if it finds a deficiency in the Army Corps’ analysis. But the bill also specifically prevents vacatur for challenges under the APA. In either case, there is an exception for if the court finds that the “activities authorized under the permit would present an imminent and substantial danger to human health or the environment.”
Mechanick called this a “timing rule,” since the court’s options will depend on how far along the project is. The agency either has enough time to act before harm is imminent, or it doesn’t. “I don’t understand why you should have to wait until the harm is imminent to enjoin the agency,” he said, “but I suppose the idea is that this is a lighter touch remedy until it’s really a do-or-die moment.”
On Korea’s Westinghouse wishes, a lithium deal, and British heat pumps
Current conditions: New York City’s temperature is set to rise as high as 80 degrees Fahrenheit this week before plunging as the coldest weather so far this season blows into the Northeast • Temperatures in Denver have been above 80 degrees for the past 11 days straight • Nearly 200,000 households, mostly in Florida, are still without electricity after Hurricane Isaias.
In theory, news of President Donald Trump’s deal with Russia to pump millions of tons of diesel into the global market should have eased oil prices. Instead, all three major crude benchmarks spiked Monday by nearly 1.5%. Only West Texas Intermediate, the U.S. metric that has largely evaded the worst knock-on effects of conflict in the Middle East, remained below $100 per barrel. The hike came as the Houthi attacks on Saudi Arabia over the weekend weighed heavily on investors’ minds, eclipsing whatever impact the diesel deal could have had.
Speaking at an industry summit in Riyadh, from which executives from Western oil majors bowed out at the last minute following missile strikes on the airport in the Saudi capital, the head of the country’s state oil company warned that not even Saudi Arabia had the capacity to protect all the supply routes off its coasts for getting hydrocarbons from the region to the world. “No nation, even one as capable and confident as ours, can safeguard them alone,” Aramco CEO Amin Nasser said, according to Arab News.
TotalEnergies took more than $1 billion from the Trump administration to kill off its offshore wind projects. But don’t take that as a sign the French energy behemoth is abandoning American renewables. The company’s joint venture with private equity giant KKR announced a deal to add 700 megawatts of solar to its portfolio of 1.4 gigawatts. The $1.2 billion acquisition includes three utility-scale solar farms in Texas and Ohio that are expected to reach commercial operation in the first quarter of next year.

South Korea is in a bind. The Korea Electric Power Corporation, through its subsidiary Korea Hydro & Nuclear Power, represents the most competent financier and builder of nuclear reactors anywhere in the democratic world, having constructed the United Arab Emirates’ debut atomic power stations relatively on time and on budget compared to U.S., French, and British projects. But the leading Korean reactor, the APR1400, allegedly borrowed from the American nuclear champion Westinghouse’s pressurized water reactor design. A yearslong legal feud ended last year with a settlement that bars the Koreans from bidding on projects in Europe or North America. In a deal this month with the Trump administration to stave off tariffs, Seoul has agreed to help finance and construct six Westinghouse AP1000s and two of its own APR1400s in the U.S., giving the Americans a leg up on nuclear construction and the Koreans a foothold in North America.
In South Korea, where the Westinghouse settlement has widely been considered unfair, the government is signaling other plans to gain more leverage. For starters, KEPCO’s chief executive Kim Dong-cheol said the claim that the settlement requires the company to pay Westinghouse $2 billion per nuclear plant to use its technology was misunderstood. “It is true that $2 billion is the ceiling, but it does not mean we will pay all of it,” he said. But the more eyebrow-raising detail in his interview with the financial newspaper Business Korea is that KEPCO is considering a plan to acquire an equity stake of between 5% and 10% in Westinghouse. Rumors of a potential deal to buy part of Westinghouse have been circulating in the Korean press for weeks now. Anything seems to be on the table these days, but when I have asked multiple sources on the U.S. side about it, all of them shrugged off the possibility to me.
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When The New York Times ran a glowing profile of the lithium startup EnergyX back in 2021, industry sources at the time mocked the coverage to me as too credulous — a sign of how unsophisticated the popular American press was at writing about critical minerals at the time. The Wall Street Journal glazed the firm’s chief executive, Teague Egan, in its own profile three years later. So it was with light surprise and amusement that I read Reuters reporter Ernest Scheyder’s latest story about the company: EnergyX just signed a $2 billion binding offtake to supply the commodities giant Trafigura with the battery metal from Chile and the U.S. It’s one of the largest deals ever tied to direct lithium extraction, the technology EnergyX is trying to commercialize, which uses less water than standard methods of mining the metal. The 10-year contract comes amid growing demand from the stationary battery storage market as the grid and data centers eat what unsteady sales of electric vehicles has left on the plate.
The British government plans to cut hundreds of millions of dollars from the national program to upgrade boilers in England and Wales, providing £9,000, or nearly $12,000, to finance the switch to heat pumps. The cuts, which the Financial Times reported Monday had drawn a backlash against the ruling Labour Party, are part of a broader bid by Prime Minister Andy Burnham to slash £2 billion in the budget to make way for more military spending. The reductions began in June under former Prime Minister Keir Starmer with a study to identify potential cuts. Starmer singled out the Department of Energy Security and Net Zero, particularly after the agency received a 16% annual increase to fund projects such as the nuclear buildout at Sizewell C, carbon capture infrastructure, and insulation to make homes more energy efficient.
The move is sure to ripple across the climate policy world. Roughly a week ago, Daniel Aldana Cohen, an assistant professor at the University of California at Berkeley, was extolling the benefits of ramping up U.S. production of heat pumps in response to soaring heating prices this winter due to the fossil fuel supply crunch. “Every year that we don’t do a wartime mobilization on heat pumps, we’re ruining people’s lives,” the early advocate of a Green New Deal wrote in a post on X. “Heat pumps will always outperform heating oil, cut costs, add summer AC. And would be fantastic for labor, small businesses, worker co-ops.”
As quickly as a spark of atmospheric electricity strikes, the Ford F-150 Lightning disappeared, with the final model of the all-electric pickup truck rolling off the assembly line last year. Now, Bloomberg reports, “it has become one of the most coveted cars in America and a glowing ember in the red-hot market for used electric vehicles.” The price of a used Lightning is 50% to 60% of the sticker price, which one expert told the newswire “is really a sweet spot.”