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The Inflation Reduction Act is already transforming America. But is it enough?
In the late spring, a scene happened that might have once — even a few years ago — seemed unimaginable.
Senator Joe Manchin and Energy Secretary Jennifer Granholm visited the town of Weirton, West Virginia, to celebrate the groundbreaking of a new factory for the company Form Energy. The factory will produce a new type of iron battery that could eventually store huge amounts of electricity on the grid, allowing solar and wind energy to be saved up and dispatched when needed.
Manchin was clear about why everyone was gathered in Weirton. “Today’s groundbreaking is a direct result of the Inflation Reduction Act, and this type of investment, in a community that has felt the impact of the downturn in American manufacturing, is an example of the IRA bill working as we intended,” he said.
It’s been nearly a year since the Inflation Reduction Act, President Joe Biden’s flagship climate law, passed. The law is successful. It is transforming the American energy system. And the Biden administration is implementing it as fast as it can: Since the law passed, the Treasury Department has published nearly three dozen pieces of complicated rules explaining how the IRA’s billions in subsidies can actually be used.
But is the IRA successful enough? The pace and scale of the climate challenge remains daunting. A recent report from the Rhodium Group, an energy-research firm, found that the United States would only meet its Paris Agreement goal of cutting carbon emissions in half by 2030 with more aggressive federal and state policy.
Here are some broad observations about how the IRA — and the broader project of American decarbonization — is going:
Politically, environmentally, no matter how you look at it: The power sector is the thumping heart of the I.R.A. Because engineers know how to generate electricity without producing carbon pollution — using wind turbines, solar panels, nuclear plants, and more — the sector is central to the law’s implicit plan to decarbonize the American economy, which requires, first, building as much zero-carbon electricity infrastructure as possible, while, second, shifting as much of the rest of the economy to using electricity — as opposed to oil, gas, or coal — as possible.
The electricity industry is also the site of perhaps the law’s most powerful climate policy — and its only policy tied to a national emissions-cutting goal. The law will indefinitely subsidize new zero-carbon electricity until greenhouse-gas pollution from the American power sector falls 75% below its 2022 levels. That means these tax credits could remain in effect until the 2060s, according to an analysis from the research firm Wood MacKenzie.
This was a first for American environmental law, and it remains poorly understood by the public. Even some experts claim that the electricity credits will phase out in 2032 with the I.R.A.’s other subsidies — when, in fact, 2032 is the earliest possible year that they could end.
Which is all to say that it’s early days for understanding the I.R.A.’s effect on the power sector. The data is provisional.
Yet the data is … good. Better than I expected when I started writing this article. The overwhelming majority of new electricity generation built nationwide this year — some 83% — will be wind, solar, or battery storage, according to federal data. Although that mostly reflects projects planned before the IRA was passed, it’s still a giant leap over previous years, and it suggests that the law might be giving clean electricity a boost at the margin:
The solar industry, in particular, is surging. The industry just had its best first quarter ever, with rooftop installations booming and some big utility-scale solar farms finally coming online.
But solar can’t power the entire grid, and other renewables are having more trouble. I’m particularly worried about offshore wind. To build a new offshore-wind project, companies bid for tracts of the ocean floor in a government-run auction. Yet many of those bids failed to account for 2021 and 2022’s rapid inflation, and some developers are now on the hook for projects that don’t pencil out. Most outside analysts now believe that the Biden administration will fall short of its goal to build 30 gigawatts of offshore wind by 2030.
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The boom in electric vehicle and battery manufacturing is clearly the I.R.A.’s brightest spot. (The two industries are one and the same: If you have a giant battery, you’re probably going to put it in an EV; and about a third of every EV’s value comes from the battery.)
Since the IRA passed, 52 new mining or manufacturing projects have been announced, representing $56 billion in new investment, according to a tracker run by Jay Turner, a Wellesley College professor. If you zoom out to all of Biden’s term, then more than $100 billion in EV investment has been announced, which will create more than 75,000 jobs, according to the Department of Energy.
It remains to be seen, however, whether this investment will produce the kind of durable, unionized voter base that the Biden administration hopes to form. So far, much of this investment has flowed to the Sunbelt — and in particular, to a burgeoning zone of investment from North Carolina to Alabama nicknamed the “Battery Belt.” These states are right-to-work states with a low cost-of-living, like much of the states that have absorbed manufacturing investment since the 1980s.
This might make Republicans think twice about undermining the IRA, but it might also be a missed opportunity.
In order to cheaply decarbonize its grid, America needs better power lines. Building long-range, interregional electricity transmission will allow the country to funnel clean energy to where it’s needed most. According to a team led by Jesse Jenkins, a Princeton engineering professor, 80% of the IRA’s carbon-reduction benefits could be lost if the United States doesn’t quicken the pace of new transmission construction. (Other models are less worried.)
Yet the effort to build more power lines — and the broader campaign to reform some rules governing permitting and land use, especially the National Environmental Policy Act — is probably over, at least in this Congress. Republican lawmakers figured out that Democrats are desperate for transmission reform, and they were prepared to make the party pay a high price for it — too high a price for much of the caucus. The bipartisan deal to raise the debt-ceiling also contained many of the moderate permitting reforms that Democrats might have accepted as part of a broader bargain over transmission.
Democrats are now stuck hoping that the Federal Energy Regulatory Commission, or FERC, will make smaller, more technocratic improvements to the transmission process when they take a majority of the commission’s seats early next year.
The biggest programs in the IRA target mature technologies, like solar, wind, and EVs. But the law is full of unheralded programs meant to encourage the development of early-stage climate technologies, such as sustainable aviation fuel. By encouraging technological progress, these programs could abate hundreds of millions of tons of carbon a year in the decades after 2030. They may prove especially important at reducing emissions outside the United States, according to a new analysis from Rhodium Group.
Which is to say that they could be — from a world-historic perspective — some of the law’s most important policies. But for now, few of these programs have been implemented, and we don’t really know how they’re going to go.
Some of them may also be devilishly hard to set up. My colleague Emily Pontecorvo has reported on the difficulty of setting up the tax credits for green hydrogen, which are some of the law’s most generous. If successful, the credits could give the U.S. a major new industry to tackle the decarbonization challenge; if unsuccessful, they could screw up the American electricity system.
Right now, most of the law’s consumer-facing tax credits are continuations of old policies — such as the longstanding subsidy to install rooftop solar — rather than something new. Perhaps the most expansive subsidy that consumers have seen so far is the new $7,500 tax credit for leasing an electric vehicle.
But many more programs will eventually come, including the IRA’s rebates for heat pumps, induction stoves, and electric water heaters. Those programs, some of which must be administered by state offices, have largely yet to be set up. (Even so — and in keeping with other encouraging trends — heat pump sales outpaced furnace sales in the U.S. for the first time last year.)
The Department of Energy is an agency transformed. The IRA held out the opportunity that the agency could metamorphose from an R&D-focused nuclear-weapons storehouse into the federal government’s dynamo of decarbonization. The Biden administration — and Energy Secretary Jennifer Granholm — has seized that opportunity.
As I wrote earlier this year, the agency has stepped into the role of being America’s bureau of industrial policy, replete with its own in-house bank. It has published some of the most detailed and sophisticated federal industrial plans that I’ve ever seen.
And it is getting admirably specific about each of the technologies in its portfolio. In a recent report on the nascent hydrogen industry, for instance, the department said that companies might not build out enough infrastructure because they can’t count on future demand for clean hydrogen. (It’s impossible for firms to invest in making hydrogen if they can’t be sure anyone is going to buy it.) Then, earlier this week, the agency announced a new $1 billion program to buy hydrogen itself, thus providing that demand-side certainty that producers need.
Let’s return to renewables. The United States is striving — but will likely fail — to build 30 gigawatts of offshore wind by 2030. It is building a couple dozen gigawatts of new solar capacity every year. That may seem like a lot: One gigawatt of electricity is enough to power about 825,000 homes.
But annual power demand in the United States is closer to 4,000 gigawatts — and it’s on track to grow as we electrify more and more of the economy. While decarbonizing the grid isn’t as simple as switching one energy source for another, still, it would take more than a century to build 4,000 gigawatts of renewables electricity at our current rate.
It’s a similar story in electric cars. The growth is good: EV sales rose 50% year over year in the first half of 2023. But the challenge is daunting: Electric vehicles made up only 7% of all new car sales in the U.S. during the same period, and decarbonizing the car fleet will eventually require making virtually all new car sales EVs, and then — over the next decade — replacing the 275 million private vehicles on the road.
And that’s the story of the IRA — from renewables to EVs, geothermal to nuclear energy. The trends have never been better. The government has never tried to change the energy system so quickly or so thoroughly. That, by itself, is progress: For decades, the great obstacle of climate change was that the government wasn’t trying to solve it at all.
But decarbonization will require replacing hundreds of millions of machines that exist in the world — and doing it fast enough that we avoid dealing catastrophic damage to the climate system. The IRA is about to take on that challenge head-on. Now we find out if it’s up to the task.
The real work, in other words, is just beginning.
Read more from Robinson Meyer:
The East Coast’s Smoke Could Last Until October
The Weird Reasons Behind the Atlantic Ocean’s Crazy Heat
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President Trump has had it in for electric vehicle charging since day one. His January 20 executive order “Unleashing American Energy” singled out the $5 billion National Electric Vehicle Infrastructure program by name, directing the Department of Transportation to pause and review the funding as part of his mission to “eliminate” the so-called “electric vehicle mandate.”
With the review now complete, the agency has concluded that canceling NEVI is not an option. In an ironic twist, the Federal Highway Administration issued new guidance for the program on Monday that not only preserves it, but also purports to “streamline applications,” “slash red tape,” and “ensure charging stations are actually built.”
“If Congress is requiring the federal government to support charging stations, let’s cut the waste and do it right,” Transportation Secretary Sean Duffy said in a press release. “While I don’t agree with subsidizing green energy, we will respect Congress’ will and make sure this program uses federal resources efficiently.”
Duffy’s statement stands in sharp contrast to the stance of other federal agencies, including the Environmental Protection Agency and the Department of Energy, which continue to block congressionally-mandated spending programs.
Only time will tell whether the new guidance is truly a win for EV charging, however. It’s a win in the sense that many EV advocates feared the agency would try to kill the program or insert poison pills into the guidance. But it’s unclear whether the changes will speed up NEVI deployment beyond what might have happened had it not been paused.
“The real story to me is the needless delay,” Joe Halso, a senior attorney for Sierra Club, told me. “They took six months to produce something that they could have done in an afternoon, and that didn’t require them to halt the program in the first place. Every day of that delay stalled critical EV charging projects.”
The goal of the NEVI program was to help states install charging stations in areas that the market, on its own, was not serving. States had to submit annual plans to the FHWA for how they would deploy the funds to fill gaps in regional EV charging networks. Once those plans are approved, states could issue requests for proposals from EV charging companies to build the new charging stations and award grants to help get them financed.
In February, Duffy issued a letter to state Departments of Transportation suspending approval of their plans for all fiscal years, pending forthcoming new guidance from the agency. That meant states would not be able to issue new awards, essentially freezing the program. At the time, the agency had approved state spending plans totaling more than $3.2 billion for fiscal years 2022 through 2025. Of that money, states had committed only about $526 million to specific projects.
In early May, 16 states plus the District of Columbia challenged the DOT’s actions in court, winning a preliminary injunction that prevented the agency from suspending or revoking their previously-approved plans. While the injunction unfroze the program in the plaintiff states, about $1.8 billion for the rest of the country was still locked up. But the judge allowed a coalition of national, regional, and community groups, including the Sierra Club, to become parties in the case and fight for the funding to be restored across the board. That means that if the plaintiffs are ultimately successful, the verdict will apply to every state, not just those 16 that filed the case.
The fact that the DOT issued new guidance this week doesn’t change anything about the case, Halso of the Sierra Club told me. The move could wind up delaying the program further.
“This new guidance prolongs the freeze by forcing states to resubmit already approved plans to access money they’re already entitled to,” Halso explained. “And we don’t know if or when federal highways will approve those plans and restore states’ access to money.” The guidance gives states 30 days to submit their plans, though it does allow them to simply re-submit previously-approved versions.
In Monday’s press release, Duffy declared the program’s implementation to date a “failure,” citing the fact that only 16% of the funds had been obligated so far. It’s true that the program has been slow in getting underway. As of this week, there are at least 106 NEVI-funded charging stations with 537 ports across 17 states, Loren McDonald, the chief analyst for the EV charging data analytics firm Paren, told me. That’s a long way off pace to achieve President Biden’s stated goal of installing 500,000 by 2030.
It’s also true that the new rules are simpler. The previous guidance, which was 30 pages long, contained more than five pages of detailed “considerations” states had to follow in developing their plans, which designated specific distances between chargers, required projects to mitigate adverse impacts to the electric grid, and mandated that States target “rural areas, underserved and overburdened communities, and disadvantaged communities,” among other rules. The new guidance, by contrast, is a tight seven pages devoid of almost any obligations not explicitly required by the Bipartisan Infrastructure Law, which created the program.
Under the previous guidance, for example, NEVI-funded stations had to be built within one mile of a federally-designated EV corridor and at no greater than 50-mile increments along those corridors. The new guidance simply says that states should “consider the appropriate distance between stations to allow for reasonable travel and certainty that charging will be available to corridor travelers when needed.”
McDonald told me that some states had been frustrated with the 50-mile siting requirement and would likely welcome that change. NATSO and SIGMA, two industry associations that represent rest stops, travel centers, and fuel marketers, issued a joint statement praising the “flexible, consumer-oriented approach.” They also specifically applauded the guidance for encouraging states to prioritize projects that are built and operated by the site owner. Some NEVI projects were being developed by a third party, such as Tesla, which had to sign a long-term lease with the site owner, like a grocery store or hotel. These agreements took time to work out, and would sometimes fall apart, McDonald told me.
But from McDonald’s vantage point, what was slowing down the program most was the fact that every state had different requirements and a different process for soliciting and scoring proposals from developers. Also, while a few states already had previous experience administering EV charging grant programs, many lacked staff and expertise in the subject. “I don’t mean this the way it’s going to come out,” McDonald said. “But they barely knew how to spell EV charging. A lot of the state DOTs really just were about building roads and bridges, and they had never had to deal with any charging.”
The new DOT guidance doesn’t seek to address either of those issues. “I’m not seeing anything in here that’s going to lead to a significant reduction in time,” McDonald said. “It seems to sort of miss where the lengthy processes were.”
The Zero Emission Transportation Association, an industry group, had a more positive outlook. Research associate Corey Cantor told me the new guidance is “workable” for the industry and provides regulatory certainty. When I asked Cantor if the changes the agency made to the guidance would help get more money out the door, he said it “remains to be seen on the implementation side,” but that states had been asking for more flexibility.
Cantor emphasized that it was important for state DOTs to have regulatory certainty and to get the funds flowing again. “Charging anxiety, after the upfront cost of EVs, is one of the highest cited barriers for entry for new adopters of electric vehicles,” he said. “And so getting the charging network filled out is key to helping us move to this next stage of the transition.”
On Sierra Club drama, OBBB’s price hike, and deep-sea mining blowback
Current conditions: Tropical Erin is expected to gain strength and make landfall in the Caribbean as the first major hurricane of the season, lashing islands with winds of up to 80 miles per hour and 7 inches of rain • More than 152 fires have broken out across Greece in the past 24 hours alone as Europe battles a heatwave • Typhoon Podul is expected to make landfall over southeastern Taiwan on Wednesday morning, lashing the island with winds of up to 96 miles per hour.
The Department of Energy selected 11 nuclear projects from 10 reactor startups on Tuesday for a pilot program “with the goal to construct, operate, and achieve criticality of at least three test reactors” by next July 4. The Trump administration then plans to fast-track the successful technologies for commercial licensing. The effort is part of the United States’ attempt at catching up with China, which last year connected its first high-temperature gas-cooled reactor to the grid. The technologies in the program vary among the reactors selected for the program, with some reactors based on Generation IV designs using coolants other than water and others pitching smaller but otherwise traditional light water reactors. None of the selected models will produce more than 300 megawatts of power. The U.S. hopes these smaller machines can be mass produced to bring down the cost of nuclear construction and deploy atomic energy in more applications, including on remote military bases, and even, as NASA announced last week, the moon.
Here are the companies:
The Sierra Club terminated executive director Ben Jealous this week, ending a rocky tenure that culminated earlier this summer in votes of no confidence among statewide chapters, Inside Climate News’ Lee Hedgepeth reported. A former chief executive of the National Association for the Advancement of Colored People and the 2018 Democratic nominee for Maryland governor, Jealous’ rise to the green group’s top job in November 2022 seemed like a watershed moment for what is arguably the nation's most prominent environmental groups. The first non-white leader of the 133-year-old organization promised to close the book on the Sierra Club’s internal wrestling with the racist legacy of its founder, John Muir.
But budget cuts, layoffs, and fights with the group’s union marred his time at the helm. In June, the executive committee of the Sierra Club’s Oregon Chapter voted unanimously to request a vote of no-confidence in Jealous from the national organization’s board, citing his hiring of a senior staff member who was registered as lobbyist for the cryptocurrency exchange Crypto.com, The New York Times’ Claire Brown reported. Weeks later, the Missouri Chapter voted unanimously to make the same request. Allies on the board accused Jealous’ critics of a racist “pattern of misinformation, character assassination, and discrimination” against the first Black man to hold the top job. But the board placed Jealous on leave last month and, on Monday, said in a statement that it had “unanimously voted to terminate Ben Jealous’ employment for cause.”
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The price of power purchase agreements in the U.S. has increased by 4% on average since the passage of President Donald Trump’s One Big Beautiful Bill. That’s according to data released this morning by the industry group LevelTen Energy, which called the calculations “the clearest signal yet that the market has already begun to reprice in light of these new risks and headwinds.”
Of the 86 U.S. developers surveyed from the LevelTen Marketplace, 86% said “they are now adapting their approach — either by accelerating construction timelines, reprioritizing project pipelines, or both.” Next Monday, the Treasury Department is due to issue guidance for renewable energy projects accessing federal tax credits, following Trump’s executive order directing the Internal Revenue Service to place new restrictions on solar and wind developers. Industry groups have been “circling the wagons” since the orders release, according to Heatmap’s Emily Pontecorvo, bracing for restrictions that will push up prices for renewables.
The United States is the only major country that hasn’t ratified the United Nations’ 1994 Law of the Sea treaty. Yet the Trump administration has used the country’s “observer” status to push for finalizing a code under the UN-affiliated International Seabed Authority that would allow for permitting commercial mining on the ocean floor. Trump also signed an executive order in April to unilaterally license deep-sea mining if global rules don’t come into effect. At the center of the effort is the Canadian startup The Metals Company, which has designed special machines to harvest mineral-rich nodules on the deep-sea floor. The company and its backers say it’s a cleaner, faster way to increase global mineral supplies than opening more mines on land. But skeptics — including France and China — warn that the rush to industrialize one of the planet’s last untouched wildernesses risks harming fragile and scarcely understood ecosystems, and criticized Washington for threatening to go it alone without international regulations in place.
China was the first country to publicly condemn Trump’s order in April, but Brazil and Panama spoke at last month’s ISA meeting in Kingston, Jamaica, to express support for Beijing’s position, Canary Media’s Clare Fieseler reported from the Caribbean capital.
The sweltering streets of Midtown Manhattan on July 29, 2025. Spencer Platt/Getty Images
Great news for anyone who, like me, is getting increasingly spooked about microplastics: New research in the journal Sustainable Food Technology found that grapevine cane films could be a great alternative to petrochemical plastics. They’re transparent, leave behind no harmful residues, and biodegrade into soil within 17 days. “These films demonstrate outstanding potential for food packaging applications,” Srinivas Janaswamy, an associate professor in South Dakota State University's Department of Dairy and Food Science, said in a press release. “That is my dream.”
Editor’s note: This story has been corrected to reflect the fact that, at the time of publication, Tropical Storm Erin was not yet a hurricane.
Jesse gives Rob a lesson in marginal generation, inframarginal rent, and electricity supply curves.
Most electricity used in America today is sold on a wholesale power market. These markets are one of the most important institutions structuring the modern U.S. energy economy, but they’re also not very well understood, even in climate nerd circles. And after all: How would you even run a market for something that’s used at the second it’s created — and moves at the speed of light?
On this week’s episode of Shift Key Summer School, Rob and Jesse talk about how electricity finds a price and how modern power markets work. Why run a power market in the first place? Who makes the most money in power markets? How do you encourage new power plants to get built? And what do power markets mean for renewables?
Shift Key is hosted by Jesse Jenkins, a professor of energy systems engineering at Princeton University, and Robinson Meyer, Heatmap’s executive editor.
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Here is an excerpt from our conversation:
Jesse Jenkins: If I’m just a utility operating on my own, I want to basically run my fleet on what we call economic dispatch, which is rank ordering them from cheapest to most expensive on a fuel or variable cost basis, and trying to maximize my use of the less expensive generators and only turn on the more expensive generators when I need them.
That introduces this idea of a marginal generator, where the marginal generator is the last one I turned on that has some slack to move up or down as demand changes. And what that means is that if I have one more megawatt-hour of demand in that hour — or over a five-minute period, or whatever — or 1 megawatt-hour less, then I’m going to crank that one generator up or down. And so the marginal cost of that megawatt-hour of demand is the variable cost of that marginal generator. So if it’s a gas plant that can turn up or down, say it’s $40 a megawatt-hour to pay for its fuel, the cost on the margin of me turning on my lights and consuming a little bit more is that that one power plant is going to ramp its power up a little bit, or down if I turn something off.
And so the way we identify what the marginal value of supplying a little bit more electricity or consuming a little bit more electricity is the variable cost of that last generator, not the average cost of all the generators that are operating, because that’s the one that would change if I were to increase or decrease my output.
Does that make any sense?
Robinson Meyer: It does. In other words, the marginal cost for the whole system is a property of the power plant on the margin, which I realize is tautological. But basically, the marginal cost for increasing output for the entire system by 1 megawatt-hour is actually a property of the one plant that you would turn on to produce that megawatt-hour.
Jesse Jenkins: That’s right, exactly. And that can change over the course of the day. So if demand’s really high, that might be my gas plant that’s on the margin. But if demand is low, or in the middle of the day, that gas plant might be off, and the marginal generator during those periods might be the coal plant or even the nuclear plant at the bottom of the supply curve.
Mentioned:
Jesse’s slides on electricity pricing in the short run
Jesse’s lecture slides on electricity pricing in the long run
Shift Key Summer School episodes 1, 2, and 3
This episode of Shift Key is sponsored by …
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Music for Shift Key is by Adam Kromelow.