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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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Clean energy stocks were up after the court ruled that the president lacked legal authority to impose the trade barriers.
The Supreme Court struck down several of Donald Trump’s tariffs — the “fentanyl” tariffs on Canada, Mexico, and China and the worldwide “reciprocal” tariffs ostensibly designed to cure the trade deficit — on Friday morning, ruling that they are illegal under the International Emergency Economic Powers Act.
The actual details of refunding tariffs will have to be addressed by lower courts. Meanwhile, the White House has previewed plans to quickly reimpose tariffs under other, better-established authorities.
The tariffs have weighed heavily on clean energy manufacturers, with several companies’ share prices falling dramatically in the wake of the initial announcements in April and tariff discussion dominating subsequent earnings calls. Now there’s been a sigh of relief, although many analysts expected the Court to be extremely skeptical of the Trump administration’s legal arguments for the tariffs.
The iShares Global Clean Energy ETF was up almost 1%, and shares in the solar manufacturer First Solar and the inverter company Enphase were up over 5% and 3%, respectively.
First Solar initially seemed like a winner of the trade barriers, however the company said during its first quarter earnings call last year that the high tariff rate and uncertainty about future policy negatively affected investments it had made in Asia for the U.S. market. Enphase, the inverter and battery company, reported that its gross margins included five percentage points of negative impact from reciprocal tariffs.
Trump unveiled the reciprocal tariffs on April 2, a.k.a. “liberation day,” and they have dominated decisionmaking and investor sentiment for clean energy companies. Despite extensive efforts to build an American supply chain, many U.S. clean energy companies — especially if they deal with batteries or solar — are still often dependent on imports, especially from Asia and specifically China.
In an April earnings call, Tesla’s chief financial officer said that the impact of tariffs on the company’s energy business would be “outsized.” The turbine manufacturer GE Vernova predicted hundreds of millions of dollars of new costs.
Companies scrambled and accelerated their efforts to source products and supplies from the United States, or at least anywhere other than China.
Even though the tariffs were quickly dialed back following a brutal market reaction, costs that were still being felt through the end of last year. Tesla said during its January earnings call that it expected margins to shrink in its energy business due to “policy uncertainty” and the “cost of tariffs.”
Current conditions: More than a foot of snow is blanketing the California mountains • With thousands already displaced by flooding, Papua New Guinea is facing more days of thunderstorms ahead • It’s snowing in Ulaanbaatar today, and temperatures in the Mongolian capital will plunge from 31 degrees Fahrenheit to as low as 2 degrees by Sunday.
We all know the truisms of market logic 101. Precious metals surge when political volatility threatens economic instability. Gun stocks pop when a mass shooting stirs calls for firearm restrictions. And — as anyone who’s been paying attention to the world over the past year knows — oil prices spike when war with Iran looks imminent. Sure enough, the price of crude hit a six-month high Wednesday before inching upward still on Thursday after President Donald Trump publicly gave Tehran 10 to 15 days to agree to a peace deal or face “bad things.” Despite the largest U.S. troop buildup in the Middle East since 2003, the American military action won’t feature a ground invasion, said Gregory Brew, the Eurasia Group analyst who tracks Iran and energy issues. “It will be air strikes, possibly commando raids,” he wrote Thursday in a series of posts on X. Comparisons to Iraq “miss the mark,” he said, because whatever Trump does will likely wrap up in days. The bigger issue is that the conflict likely won’t resolve any of the issues that make Iran such a flashpoint. “There will be no deal, the regime will still be there, the missile and nuclear programs will remain and will be slowly rebuilt,” Brew wrote. “In six months, we could be back in the same situation.”
California, Colorado, and Washington led 10 other states in suing the Trump administration this week over the Department of Energy’s termination of billions in federal funding for clean energy and infrastructure projects. In a lawsuit filed in federal court in San Francisco, the states accuse the agency of using a “nebulous and opaque” review process to justify slashing billions in funding that was already awarded. “These aren’t optional programs — these are investments approved by bipartisan majorities in Congress,” California Attorney General Rob Bonta said at a press conference announcing the lawsuit, according to Courthouse News Service. “The president doesn’t get to cancel them simply because he disagrees with them. California won’t allow President Trump and his administration to play politics with our economy, our energy grid and our jobs.”
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If you’re looking for a sign of the coming geothermal energy boom in the U.S., consider this: There is now a double-digit number of next-generation projects underway, according to an overview the Energy Information Administration published Thursday. For the past century, geothermal energy has relied upon finding and tapping into suitably hot underground reservoirs of water. But a new generation of “enhanced” geothermal companies is using modern drilling techniques to harness heat from dry rocks.

If you’re looking for a thorough overview of the technology, Heatmap’s Matthew Zeitlin wrote the definitive 101 explainer here. But a few represent some of the earliest experiments in enhanced geothermal, including the Fenton Hill in New Mexico, established in the 1970s, which was the world’s first successful project to use the technology.
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When Exxon Mobil announced plans in December to scale back its spending on low-carbon investments, the oil giant justified the move in part on all the carbon capture and storage projects poised to come online this year that would vault the company ahead of its rivals. This week, Exxon Mobil started transporting and storing captured carbon dioxide at its latest facility in Louisiana. The New Generation Gas Gathering facility on the western edge of the state’s Gulf Coast is the company’s second CCS project in Louisiana. Known as NG3, the project is set to remove 1.2 million tons of CO2 per year from gas streams headed to export markets on the coast. The Carbon Herald reported that two additional CCS projects are set to start up operations this year.
CCS got a big boost in October when Google agreed to back construction of a gas-fired power plant built with carbon capture tech from the ground up. The plant, which Matthew noted at the time would be the first of its kind at a commercial scale, is sited near a well where captured carbon can be injected. Senate Democrats, meanwhile, are reportedly probing the Trump administration’s decision to redirect CCS funding to coal plants.
In 2019, Maine expanded its Net Energy Billing program to subsidize construction of commercial-scale solar farms across the state. “And it worked,” Maine Public Radio reported last July when the state passed a law to phase out the funding, “too well, some argue.” In 2025 alone, ratepayers in the state were on the hook for $234 million to support the program. Solar companies sued, arguing that the abrupt cut to state support had unfairly deprived them of funding. But this week U.S. District Judge Stacey Neumann denied a motion the owners of dozens of solar farms filed requesting an injunction.
That isn’t to say things aren’t looking sunny for solar in Maine. On the contrary, just yesterday the developer Swift Current Energy secured $248 million in project financing for a 122-megawatt solar farm and the Poland Spring water company went on statewide TV to show off the new panels on its bottling plant. The federal outlook isn’t as bright at the moment. As Heatmap’s Jael Holzman reported in December, the solar industry was begging Congress for help to end the Trump administration’s permitting blockade on new projects on federal lands.
The Trump-stumping country music star John Rich is continuing his crusade against the Tennessee Valley Authority. Months after blocking construction of a gas plant in his neighborhood, Rich personally pressed TVA CEO Don Moul to reroute a transmission line, posting a video Thursday of farmers who opposed the federal utility’s use of the right of way process to push through the project. Rich said Moul “personally told me as of this morning” TVA will put the effort on hold. The left-wing energy writer and Heatmap contributor Fred Stafford summed it up this way on X: “MAGA NIMBY rises, Dark Abundance falls. TVA ratepayers will be paying more for a rerouted transmission project because this country music star threw his support behind a local farmer who refuses to allow the transmission line to cross his land.”
Rob talks about the consumer response to fuel economy with Yale’s Kenneth Gillingham, then gets the latest Clean Investment Monitor data from Rhodium Group’s Hannah Hess.
It hasn't attracted as much attention as you might expect, but President Donald Trump has essentially killed all fuel economy rules on cars and trucks in the United States.
By the end of the year, automakers will face virtually no limits on how many huge gas guzzlers they can sell to the public — or what those purchases will do to domestic oil prices. But is the thinking driving this change up to date?
On this episode of Shift Key, Rob is joined by Kenneth Gillingham, a professor of environmental and energy economics at Yale. They chat about how the economics profession changed its mind about fuel efficiency rules for cars and trucks — and then recently changed its mind again. They also debrief about what the Trump rollback gets right and wrong in its key economic assumptions and how that might affect its reception.
Then Rob chats with Hannah Hess, an associate director from the Rhodium Group about new Clean Investment Monitor data that shows the U.S. clean energy economy was a “tale of two industries” in Q4 2025.
Shift Key is hosted by Robinson Meyer, the founding executive editor of Heatmap News.
Subscribe to “Shift Key” and find this episode on Apple Podcasts, Spotify, Amazon, or wherever you get your podcasts.
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Here is an excerpt from their conversation:
Robinson Meyer: 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: 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.
Meyer: And I should say that neither the CAFE standards, which are 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 $1,200 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 tradeoff 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, 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?
Gillingham: 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.
Meyer: 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?
Gillingham: That’s exactly right.
You can find a full transcript of the episode here.
Mentioned:
From Heatmap: Trump’s One Big Beautiful Blow to the EV Supply Chain
Clean Investment Monitor’s U.S. Q4 2025 Update
This episode of Shift Key is sponsored by ...
Accelerate your clean energy career with Yale’s online certificate programs. Explore the 10-month Financing and Deploying Clean Energy program or the 5-month Clean and Equitable Energy Development program. Use referral code HeatMap26 and get your application in by the priority deadline for $500 off tuition to one of Yale’s online certificate programs in clean energy. Learn more at cbey.yale.edu/online-learning-opportunities.
Music for Shift Key is by Adam Kromelow.