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A practical guide to using the climate law to get cheaper solar panels, heat pumps, and more.

Today marks the one year anniversary of the Inflation Reduction Act, the biggest investment in tackling climate change the United States has ever made. The law consists of dozens of subsidies to help individuals, households, and businesses adopt clean energy technologies. Many of these solutions will also help people save money on their energy bills, reduce pollution, and improve their resilience to disasters.
But understanding how much funding is available for what, and how to get it, can be pretty confusing. Many Americans are not even aware that these programs exist. A poll conducted by The Washington Post and the University of Maryland in late July found that about 66% of Americans say they have heard “little” or “nothing at all” about the law’s incentives for installing rooftop solar panels, and 77% have heard little or nothing about subsidies for heat pumps. This tracks similar polling that Heatmap conducted last winter, suggesting not much has changed since then.
Below is Heatmap’s guide to the IRA’s incentives for cutting your carbon footprint at home. If you haven’t heard much about how the IRA can help you decarbonize your life, this guide is for you. If you have heard about the available subsidies, but aren’t sure how much they are worth or where to begin, I’ll walk you through it. (And if you’re looking for information about the electric vehicle tax credit, my colleague at Heatmap Robinson Meyer has you covered with this buyer’s guide.)
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There’s funding for almost every solution you can think of to make your home more energy efficient and reduce your fossil fuel use, whether you want to install solar panels, insulate your attic, replace your windows, or buy electric appliances. If you need new wiring or an electrical panel upgrade before you can get heat pumps or solar panels, there’s some money available for that, too.
The IRA created two types of incentives for home energy efficiency improvements: Unlimited tax credits that will lower the amount you owe when you file your taxes, and $8.8 billion in rebates that function as up-front discounts or post-installation refunds on equipment and services.
The tax credits are available now, but the rebates are not. The latter will be administered by states, which must apply for funding and create programs before the money can go out. The Biden administration began accepting applications at the end of July and expects states to begin rolling out their programs later this year or early next.
The home tax credits are available to everyone that owes taxes. The rebates, however, will have income restrictions (more on this later).
“The Inflation Reduction Act is not a limited time offer,” according to Ari Matusiak, the CEO of the nonprofit advocacy group Rewiring America. The rebate programs will only be available until the money runs out, but, again, none of them have started yet. Meanwhile, there’s no limit on how many people can claim the tax credits, and they’ll be available for at least the next decade. That means you don’t need to rush and replace your hot water heater if you have one that works fine. But when it does break down, you’ll have help paying for a replacement.
You might want to hold off on buying new appliances or getting insulation — basically any improvements inside your house. There are tax credits available for a lot of this stuff right now, but you’ll likely be able to stack them with rebates in the future.
However, if you’re thinking of installing solar panels on your roof or getting a backup battery system, there’s no need to wait. The rebates will not cover those technologies.
A few other caveats: There’s a good chance your state, city, or utility already offers rebates or other incentives for many of these solutions. Check with your state’s energy office or your utility to find out what’s available. Also, it can take months to get quotes and line up contractors to get this kind of work done. If you want to be ready when the rebates hit, it’s probably a good idea to do some of the legwork now.
If you do nothing else this year, consider getting a professional home energy audit. This will cost several hundred dollars, depending on where you live, but you’ll be able to get 30% off or up to $150 back under the IRA’s home improvement tax credit. Doing an audit will help you figure out which solutions will give you the biggest bang for your buck, and how to prioritize them once more funding becomes available. The auditor might even be able to explain all of the existing local rebate programs you’re eligible for.
The Internal Revenue Service will allow you to work with any home energy auditor until the end of this year, but beginning in 2024, you must hire an auditor with specific qualifications in order to claim the credit.
Let’s start with what’s inside your home. In addition to an energy audit, the Energy Efficiency Home Improvement Credit offers consumers 30% off the cost (after any other subsidies, and excluding labor) of Energy Star-rated windows and doors, insulation, and air sealing.
There’s a maximum amount you can claim for each type of equipment each year:
$600 for windows
$500 for doors
$1,200 for air sealing and insulation
The Energy Efficiency Home Improvement Credit also covers heat pumps, heat pump water heaters, and electrical panel upgrades, including the cost of installation for those systems. You can get:
$2,000 for heat pumps
$600 for a new electrical panel
Yes, homeowners can only claim up to $3,200 per year under this program until 2032.
Also, one downside to the Energy Efficiency Home Improvement Credit is that it does not carry over. If you spend enough on efficiency to qualify for the full $3,200 in a given year, but you only owe the federal government $2,000 for the year, your bill will go to zero and you will miss out on the remaining $1,200 credit. So it could be worth your while to spread the work out.
The other big consumer-oriented tax credit, the Residential Clean Energy Credit, offers homeowners 30% off the cost of solar panels and solar water heaters. It also covers battery systems, which store energy from the grid or from your solar panels that you can use when there’s a blackout, or sell back to your utility when the grid needs more power.
The subsidy has no limits, so if you spend $35,000 on solar panels and battery storage, including labor, you’ll be eligible for the full 30% refund, or $10,500. The credit can also be rolled over, so if your tax liability that year is only $5,000, you’ll be able to claim more of it the following year, and continue doing so until you’ve received the full value.
Geothermal heating systems are also covered under this credit. (Geothermal heat pumps work similarly to regular heat pumps, but they use the ground as a source and sink for heat, rather than the ambient air.)
Here’s what we know right now. The IRA funded two rebate programs. One, known as the Home Energy Performance-Based Whole House Rebates, will provide discounts to homeowners and landlords based on the amount of energy a home upgrade is predicted to save.
Congress did not specify which energy-saving measures qualify — that’s something state energy offices will decide when they design their programs. But it did cap the total amount each household could receive, based on income. For example, if your household earns under 80% of the area median income, and you make improvements that cut your energy use by 35%, you’ll be eligible for up to $8,000. If your household earns more than that, you can get up to $4,000.
There’s also the High-Efficiency Electric Home Rebate Program, which will provide discounts on specific electric appliances like heat pumps, an induction stove, and an electric clothes dryer, as well as a new electrical panel and wiring. Individual households can get up to $14,000 in discounts under this program, although there are caps on how much is available for each piece of equipment. This money will only be available to low- and moderate-income households, or those earning under 150% of the area median income.
Renters with a household income below 150% of the area median income qualify for rebates on appliances that they should be able to install without permission from their landlords, and that they can take with them if they move. For example, portable appliances like tabletop induction burners, clothes dryers, and window-unit heat pumps are all eligible for rebates.
It’s also worth noting that there is a lot of funding available for multifamily building owners. If you have a good relationship with your landlord, you might want to talk to them about the opportunity to make lasting investments in their property. Under the performance-based rebates program, apartment building owners can get up to $400,000 for energy efficiency projects.
For the most part, yes. But the calculus gets tricky when it comes to heat pumps.
Experts generally agree that no matter where you live, switching from an oil or propane-burning heating system or electric resistance heaters to heat pumps will lower your energy bills. Not so if you’re switching over from natural gas.
Electric heat pumps are three to four times more efficient than natural gas heating systems, but electricity is so much more expensive than gas in some parts of the country that switching from gas to a heat pump can increase your overall bills a bit. Especially if you also electrify your water heater, stove, and clothes dryer.
That being said, Rewiring America estimates that switching from gas to a heat pump will lower bills for about 60% of households. Many utilities offer tools that will help you calculate your bills if you make the switch.
The good news is that all the measures I’ve discussed in this article are expected to cut carbon emissions and pollution, even if most of your region’s electricity still comes from fossil fuels. For some, that might be worth the monthly premium.
Tax Credit #1 offers 30% off the cost of energy audits, windows, doors, insulation, air sealing, heat pumps, electrical panels, with a $3200-per-year allowance and individual item limits.
Tax Credit #2 offers 30% off the cost of solar panels, solar water heaters, batteries, and geothermal heating systems.
Rebate Program #1 will offer discounts on whole-home efficiency upgrades depending on how much they reduce your energy use, with an $8,000 cap for lower-income families and a $4,000 cap for everyone else.
Rebate Program #2 is only for low- and moderate- income households, and will offer discounts on specific electric appliances, with a $14,000 cap.
Read more about the Inflation Reduction Act:
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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.”