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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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Two new reports out this week create a seemingly contradictory portrait of the country’s energy transition progress.
Two clean energy reports out this week offer seemingly contradictory snapshots of domestic solar and battery manufacturing. One, released Wednesday by the Rhodium Group’s Clean Investment Monitor, shows a distinct decline in investment going into U.S. factories to make more of these technologies. The other, released today by the trade group American Clean Power Association, shows staggering recent growth in production capacity.
So which is it? Is U.S. clean energy manufacturing booming or busting?
Maybe both.
The U.S. is suddenly producing more solar and batteries than ever before — enough to meet current domestic demand — so it makes sense that investment in new factories is starting to slow. At the same time, there’s a lot of room for growth in producing the upstream components that go into these technologies, but the U.S. is no longer as attractive a place to set up shop as it was over the past four years.
The U.S. saw 30 new utility-scale solar factories and 30 new battery factories come online last year alone, according to ACP. The country now has the capacity to meet average domestic demand for storage systems through 2030, and can produce enough solar panels to satisfy demand two times over.
In both industries, nearly all of that capacity has been added since 2022, when the Inflation Reduction Act created new subsidies for domestic manufacturing. The advanced manufacturing production tax credit incentivized not just solar and battery factories, but also all the production of components that go into these technologies, including solar and battery cells, polysilicon, wafers, and anodes. On top of these direct subsidies, the IRA generated demand for U.S.-made products by granting bonus tax credits for utility-scale solar and battery projects built with domestically produced parts.
“The policy definitely laid the right foundation for a lot of this investment to take place,” John Hensley, ACP’s senior vice president of markets and policy analysis, told me.
Trump’s One Big Beautiful Bill Act has changed the environment, however. The utility-scale wind and solar tax credits were supposed to apply through at least 2033, but now projects have to start construction by July 4, 2026 — just over a month from now — in order to claim them. Any of those projects that got started this year will also have to adhere to complex new sourcing rules prohibiting Chinese-made materials.
Now, dollars flowing into new U.S. solar factories appears to be on the decline. Investment fell 22% between the fourth quarter of last year and the first of 2026. Battery manufacturing investment dropped by 16%.
The reason investment is declining is not entirely because of OBBBA — it’s partly a function of the fact that a lot of the projects announced immediately after the IRA passed are entering operations, Hannah Hess, director of climate and energy at the Rhodium Group, told me.
Rhodium’s Clean Investment Monitor tracks two metrics, announcements and investment. Announcements are when a company says it’s building a new factory or expanding an existing one, usually with some kind of projected cost. Investments are an estimate of the actual dollars spent during a given quarter on facility construction, calculated based on the total project budget and the expected amount of time it will take to complete after breaking ground.
According to Rhodium’s data, the peak period for new solar manufacturing project announcements was the second half of 2022 through the first quarter of 2025. During that time, announcements averaged more than $2 billion per quarter. New solar factories announced this past quarter, by contrast, fell to about $350 million.
Since it can take a while to get steel in the ground, the peak period for investment was slightly later, with $13.5 billion invested between the second quarter of 2023 and the third quarter of 2025.
“What we were seeing in that post-IRA period was huge, almost unconstrained growth in that sector, and that’s not happening anymore,” Hess said.
Most of this growth occurred all the way downstream, at the final product assembly level — i.e. factories making solar and battery modules that still had to import many of the components that went into them. This was the “lowest hanging fruit” to bring to the U.S., Hensley, of ACP, told me, as the final assembly is the least technologically challenging part of the supply chain.
“These supply chains have momentum as they get going,” he said, “so as you establish those far downstream component manufacturing, you start to recruit all of the upstream manufacturing.” In other words, a solar cell manufacturer is far more likely to build in the U.S. if there’s a robust local market of module factories to buy the cells.
There’s evidence that’s still happening in spite of changes to the tax credit structure. The ACP report says that three solar cell factories came online between 2024 and today — one per year. If all of the additional factories that have been announced are built by 2030, the U.S. will have nearly enough capacity to meet all of its own demand for solar with domestic cells. Battery cell capacity is growing even faster, with three factories as of the end of 2025 and seven more expected to be complete by the end of this year, which will produce more than enough units to meet average annual demand.
It’s the next step up on the supply chain that spells trouble. For solar, that’s ingots and wafers, followed by polysilicon. Today, the only producer of ingots and wafers in the U.S. is a company called Corning. It produces enough to meet about 25% of current domestic solar cell production, but cell production will more than quadruple by the end of this year compared to last year, according to ACP. Similarly, we produce enough polysilicon to meet Corning’s current needs, but not enough to meet anticipated cell demand. The announced projects in the pipeline will not add much on either front.
For batteries, it’s the anodes and cathodes. There’s currently one factory in California producing cathodes and at least one more under construction, but as there is nothing else in the pipeline, the ACP report expects cell manufacturers to rely on imported cathodes for the foreseeable future. Anodes are the one bright spot — there’s one factory producing what’s known as active anode material factory in the U.S., and four more anticipated by the end of this year. Together, they have the potential to meet demand by 2028, according to ACP.
The question now is whether that snowball effect kicked off by the IRA will continue. “A lot has changed about the outlook for future demand after the One Big Beautiful Bill Act passed,” Hess said. “We have seen some more project cancellations and pauses in construction recently.”
Most recently, a company called Maxeon Solar Technologies canceled a $1 billion cell and module factory in New Mexico. The company had been “fighting for its life” since 2024, according to Canary Media. It’s also majority owned by a Chinese state-owned company. The
OBBBA was likely the nail in the coffin, as it penalizes solar developers who source panels from companies with Chinese ownership.
OBBBA also shortened the timeline for the wind and solar tax credits, while the Trump administration’s hostility to wind and solar permitting has made it more difficult for projects to get built before the credits expire. Hensley said the Trump administration’s hostility toward clean energy has added a lot of risk into the system, complicating final investment decisions for manufacturers.
On the flip side, tariffs have the potential to help some domestic producers. Duties on imports from countries such as Cambodia, India, and Vietnam, all major manufacturers of solar panels, “have made their exports to the U.S. almost prohibitive,” Lara Hayim, the head of solar research at BloombergNEF, told me in an email. “This sort of policy framework could continue to provide some protection for domestic manufacturers,” she said, but there are still plenty of countries with low enough tariffs that they will continue to serve the U.S. and compete with domestic manufacturers.
Hensley said that the Trump administration’s tariffs were a double edged sword. They can help domestic manufacturers, but not if they make all of the inputs into the product more expensive.
“That’s a problem with these blanket type of tariffs that aren’t really fine-tuned to target the behavior that you’d like to see,” he told me. “I think we’re seeing a lot of that push and pull and tension in the system at the moment.”
Between Trump’s tariffs and the OBBBA, there’s no doubt that the manufacturing boom sparked by the IRA is slowing. But Hensley is optimistic that the progress will continue. “We haven’t attracted all of the supply chain yet. It’s still a work in progress, but so far the signs are quite good.”
This week’s conversation is with Duncan Campbell of DER Task Force and it’s about a big question: What makes a socially responsible data center? Campbell’s expansive background and recent focus on this issue made me take note when he recently asked that question on X. Instead of popping up in his replies, I asked him to join me here in The Fight. So shall we get started?
Oh, as always, the following conversation was lightly edited for clarity.
Alright let’s start with the big question: What is a socially responsible data center?
So first, there’s water, which I think is pretty solvable.
Part of me thinks water is not even the right thing to be focusing on necessarily, and it’s surprising that it became at least for a while the center of the controversy around data centers.
I think there’s energy, which is mostly a don’t-raise-people’s-bills kind of thing. Or in extreme cases, actually reducing people’s access to energy.”
I think air pollution is another key. This is one of the biggest own-goals our [climate] space is making, because people are installing behind-the-meter power and we can talk about why they’re doing that, the shifting reasons, but the real shame in it is you really shouldn’t have to run those 24/7. If you’re building your own power plant, it should enable you to get a grid connection, because you’re bringing your own capacity and they can provide you firm service, and you should only have to run that gas plant 1% of the year, so air pollution is a non-issue. If only the grid and its institutions could get their act together, this is a no-brainer. But instead people run them 24/7.
There’s noise, which has been very misunderstood and bungled on a handful of well-known projects. That’s just a do-good engineering and site layout type of problem.
And then there’s other. Beyond the very concrete impacts of a data center, what else can it do for the community it's siting itself in? That’s going to be specific for every community.
There’s going to be a perspective that data centers are takers. They get tax incentives. They’re this big new thing. If data centers were to bring something compelling when [they’re] siting in communities, and it is specific to whatever they’re dealing with, maybe they’d be considered socially responsible.
I don’t think I have the master answer here. Everyone’s trying to figure it out.”
What do you hear from other folks in decarb and climate spaces when you ask this question? Do you hear people come up with solutions, or do they knock down the entire premise of the question — that there isn’t such a thing as a socially responsible data center?
You get both. You definitely get both. It depends on who you're talking to.
I can understand both sides of the equation here. There’s definitely solutions, first of all. I do think there’s a group of people whether it is in the energy world or the data center world or tech who would have this incredulous disbelief that anyone could not want what they’re doing. And that then, after being poked and prodded enough, transforms into a very elitist, almost pejorative explanation of everybody’s just NIMBYs.
I think that’s really unproductive. It kind of just throws gas on the fire.
But there’s a lot of people working on solutions, too. The non-firm grid service thing is just a huge opportunity. To be able to connect these sites to the grid in such a manner they either get curtailed some small amount of hours per year or they show up with accredited capacity, absolving them from curtailing. I mean, we can do that. It’s very doable.
The second question becomes, what are the forms of accredited capacity that can be deployed quickly? I think that’s where there’s a lot of cool stuff around VPPs and such. Sure, build a gas power plant, run it once or twice a year. If anything that’s good for a community — back-up power at grid scale.
There’s also other solutions. A really cool effort right now, former Tesla people building a purely solar and battery DC microgrid in New Mexico.
And there’s also a lot of inertia. The folks making decisions about data centers have been doing stuff a certain way for 20 years and it’s hard to change. The inertia within the culture combined with the enormous pressure to deploy just makes it less dynamic than one would hope.
On my end, I’ve been grappling with the issue of tax revenue. We’re seeing a declining amount of money for social services, things that can really help people for both personal and academic reasons. There's quite a bit a lot of people could say on that topic. At the same time, this is another form of industrial development. People are upset at the amount of resources going to this specific thing.
So when it comes to the data center boom in general, where do you stand on social cost-versus-benefit analysis?
That’s a good question. I’m not an expert. I’m mostly just someone who designs energy projects. But I can say where I’m at personally.
Yeah, but isn’t everyone in the energy space talking about data centers? Shouldn’t we all be thinking about this?
Of course. I’m not in a place to proclaim what is right but I’ll tell you where I’m at right now.
With any large-scale industrial build out it is tough relative to other technological changes that were simpler at the infrastructure layer. Like, the smartphone. Massive technological change but pretty straightforward in a lot of ways. But industrial buildout stresses real physical resources, so people have much more of an opinion of whether it’s worth it or not.
I’m pretty optimistic about AI generally. It’s very hand-wave-y. It’s hard to cite data or anything, because we’re talking about something that hasn’t happened yet, but I’m very optimistic about increasing the amount of intelligence we have access to per person on Earth.
A similar thing I think about is when everyone stopped getting lead poisoning all the time, we all jumped five IQ points and killed each other less. Intelligence is good. A lot of our story as a species is about increasing intelligence and learnings-per-person so we can do more. The idea that we would be able to synthesize it, operate it as a machine outside of our own bodies. It feels pretty inevitable.
There’s questions about what that [AI] will do to the economy and jobs, which is what people are really concerned about and is the case with any major technological change.
Are data centers being deployed at a rate and in a way that is responsible? Like, does it need to be this fast? That’s a question people ask and that’s in a way the question being posed by the moratoriums. They’re not saying let’s ban this forever. They’re saying, let’s take a breather. And I do understand that.
There’s a lot of good solutions that could just be pursued and it’s hard for me to separate my feelings about the current path data centers are taking from what I think is objectively right. We could just be doing way better.
On the energy front, what do you make of the way our energy mix — carbon versus renewables, our resilience — is headed? And where do you think we’re heading in five years?
For the energy and climate world, this is the real question. Data centers are a complicated thing but at the end of the day, for us, they’re a source of electricity demand.
From an electricity perspective, there’s been no growth for 20 years. So the theory of addressing climate change was, as the old stuff breaks we’ll replace it with new clean stuff. That was what we were doing, while saying, a lot of the old stuff we’ll keep around. We’ll layer on the new clean stuff.
It was always the case though that we could enter a new phase of electricity growth. Actually, five years ago, when the phrase “electrify everything” was coined, it explicitly became our goal! We were going to massively and rapidly grow the electricity system in order to switch industry, heating, and transport off of fossil fuels. That’s the right prescription, the right way to do it.
My understanding of it is that while this feels really big, because we haven’t grown in so long, compared to the challenge we were all talking about doing is not big at all. It increases the challenge by 15% or 20%. That’s meaningful. But it just seems like we should be able to do this.
From a climate perspective, as someone who’s been trying to do everything I can on it for a while now, I can’t help but feel a little dismayed that today the growth we’re experiencing is some tiny, tiny percentage of what we actually set out to do. And it’s causing chaos. We’re institutionally falling apart from a single percent of what our goals should be.
This is the time for the electrification case. We can all demonstrate this is possible over the next few years. I think confidence in the electricity system as our energy path can remain high. Or this utterly fails, where it’s really hard to imagine governments and businesses making any sincere attempt at a high electrification pathway.
Plus the week’s biggest development fights.
1. LaPorte County, Indiana — If you’re wondering where data centers are still being embraced in the U.S., look no further than the northwest Indiana city of LaPorte.
2. Cumberland County, New Jersey — A broader splashback against AI infrastructure is building in South Jersey.
3. Washington County, Oregon — Hillsboro, a data center hub in Oregon, is turning to a moratorium.
4. Champaign County, Ohio — We’re still watching the slow downfall of solar in Ohio and there’s no sign of it getting any better.
5. Essex County, New York — Man oh man, what’s going on with battery storage in rural pockets of the Empire State?