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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 renewables developer is expanding its business to serve “our nation’s growing energy needs.”
Two years ago, Arevia Power marketed itself as a renewable energy development powerhouse founded by solar industry veterans.
Today, the company is now also building data centers and gas turbines, Arevia chief development officer Ricardo Graf confirmed in a statement to me.
“Arevia is an energy company that delivers reliable and affordable electricity to the communities and utilities we serve,” Graf told me via email, acknowledging that “in some cases, that energy may be solar; in others, it may be gas.” He added that “yes, we also develop data center projects, but ones with accompanying power solutions to ensure ratepayers are not impacted by the data center’s energy needs.”
I’ve been keeping a close eye out to see whether any renewable energy developers, faced with the Trump administration’s squeeze on federal permits, will bet on diversifying their businesses. Maybe if they couldn’t build a solar farm on federal lands or access ample federal tax credits for constructing new projects, they’d invest in other sorts of large infrastructure projects instead.
We’ve definitely seen large U.S. energy developers such as NextEra and Invenergy take Trumpian tacks towards supplying data centers with new gas power under. Over the summer I broke the news that Clearway Energy asked the Bureau of Land Management to change a five year-old application for solar farm permits with “a proposed data center and natural gas facility.” After those plans were made public, Clearway told me in a statement to me that it was nixing the idea because it did not comport with their business strategy. “As a clean energy developer and operator, our focus in Nevada remains solar and battery storage.”
In mid-September, D.C. news outlet The Washington Sun first reported that Rhea Data, a subsidiary of Arevia Power, was behind the proposal for a giant data center and energy complex in Idaho including thousands of acres of federal land. On Thursday, the Bureau of Land Management sent me a statement confirming key details such as the inclusion of a 450-megawatt on-site gas facility. The next day, a Nebraska public radio station reported that Arevia and Graf were connected to prospective early-stage data center project site evaluation outside the city of Lincoln.
When I asked whether the company was reorienting itself toward data centers and the gas energy business, Graf acknowledged how things looked. “While this may be perceived as ‘pivoting,’ it is just a product of the evolution of our nation’s growing energy needs, which solar alone cannot satisfy,” he said over email on Friday. “Our company takes an all-above approach to helping our nation meet its increasing power demands.”
A new study from energy company Foundry-Logic argues that simply replacing old solar panels could add significant new capacity to the grid.
All across the United States, solar panels are withering on the vine. Equipment installed 10 to 15 years ago is still capturing sunlight and pumping out electricity, but significantly less of it than when the cells were new.
This is not a story about decline, however, but about growth. America’s aging solar farms represent an opportunity to expand clean energy capacity without using more land — and potentially without having to wait years for new projects to get through the grid’s interconnection queue.
Modern panels can produce as much as 70% more energy than new ones sold 20 years ago, according to Wood Mackenzie. A report published Monday estimates that “repowering” existing solar farms, or replacing old panels with new ones, could unlock about 9.6 gigawatts of solar power by 2030, 29 gigawatts by 2035, and 67 gigawatts by 2040. (For comparison, the U.S. added 27.2 gigawatts of utility-scale solar last year.) If every project up for repowering between now and 2040 installed batteries, as well, that would add up to 13 additional gigawatts of storage to the grid by 2030, and nearly 92 gigawatts by 2040. The U.S. has just over 50 gigawatts of storage online today.
That means repowered solar farms could supply about a third of the growth in peak demand the North American Electric Reliability Corporation expects to be driven by data centers by 2035, the report found.
“Solar is entering its first replacement cycle at this moment when we are seeing a structural increase in demand,” Lisa Hansmann, the director of energy company Foundry-Logic and one of the paper’s authors, told me. “The more we dug in, the more it became clear that this market is early, but it is fast growing and ultimately could be very large.”
Advances and cost declines in battery technology are key to harnessing this generation potential. If a developer wants to increase the output of their solar farm, they’ll likely have to get a new interconnection agreement, which can take years. Adding a battery to ensure the plant doesn’t send more power to the grid than it was initially approved for can help avoid that, although it depends on the specs of the project, the location, and regional regulatory requirements.
Foundry-Logic, which published the paper in partnership with the clean energy finance company Crux, is focused on “getting more out of the installed base of energy systems.” The paper, in other words, is essentially Foundry-Logic’s sales pitch. It estimates that when combined with battery storage, repowering will represent a $10.8 billion market in 2030, growing to $51.8 billion by 2040.
The estimates are certainly on the high end of what’s possible, however, as the authors looked at technical potential rather than regulatory or economic feasibility. While the first half of the paper highlights the reasons repowering can be so attractive — existing interconnections, land leases, and permits — the second half digs into the real-world conditions that complicate that narrative.
The Federal Energy Regulatory Commission requires regional transmission organizations to offer “surplus interconnection service,” rules that allow new generators to skip the interconnection queue if they connect to the grid using the same infrastructure as an existing power source, so long as there’s “surplus” room to connect at that node. The rules vary throughout the country, however. The paper finds that the Midcontinent Independent System Operator, which covers much of the Midwest, has the most favorable regulations for repowering, followed by the Southwest Power Pool, which covers the swath of the country between Montana and the Texas panhandle. In the nation’s largest transmission region, PJM, the surplus interconnection process has historically taken nearly as long as the queue, but the regional operator recently indicated it’s considering reforming the process.
Requirements also vary widely depending on the type of project — utility-scale versus smaller solar farms versus rooftop arrays — as well as by state and region. Utility-scale projects require interconnection agreements from regional transmission operators, while smaller projects connect at the local distribution level with permission from the relevant utility.
“Policy is evolving to meet the market demand for speed to power, and that's one of the things we tried to highlight too,” Josh Price, the director of market intelligence and research at Crux, told me. Because of the data center buildout and surging energy demand, he said, state regulatory commissions have started to push their utilities to examine their distribution systems, identify where there’s available interconnection capacity, and create rules or pilot programs to leverage it.
Price added that another advantage to repowering projects is that developers don’t have to start the financing process from scratch. In most cases, they already have a lender, an equity sponsor, and potentially a tax equity partner. They might need to renegotiate terms, but they also have 10 to 15 years of real-world data into how solar performs at the site, making it a less risky investment than a brand new development.
I spoke with one solar farm operator, CleanCapital, which owns many smaller sites throughout the country that were built in the early 2010s “and are needing more love,” as Zoe Berkery, the company’s chief operating officer, put it to me. The first step in deciding what to do with them, she said, is to try to extend the offtake contract for the power. “Otherwise, there would be no justification for pouring in so much additional capital into a site that may be rolling off in just a couple of years, so that piece has been something that CleanCapital has focused on pretty intensely over the last, I would say, six years,” she said.
CleanCapital has repowered some of its projects, but only to restore the original generating capacity. It has not yet added batteries to any legacy sites. Berkery said the company looked at adding batteries in New Jersey and California, but has not been able to make the economics work. “I do think there's a lot of potential there,” she said. “It just depends on the site, the space, the market.”
Hansmann told me that a lot has changed in the past year to make it easier to add batteries to existing solar sites, including new ways to get paid for energy storage, such as through participation in virtual power plants. For example, in June, Google announced it would fund a virtual power plant in PJM run by the company Voltus, which will aggregate batteries from homes and businesses, among other distributed energy resources.. “For the first time, you're having the technical potential and the commercial potential line up in a very interesting way.”
Current conditions: In the central Pacific, Hurricane Nolo lashed Hawaii as a Category 2 storm with winds of up to 105 miles per hour • In the eastern Pacific, Hurricane Polo whacked the Southern California coast with seven-foot swells • In the western Pacific, Typhoon Surigae is barreling toward Okinawa, Japan, and the Philippines’ most populous island, Luzon.

Nearly 200,000 households across the northeastern United States lost electricity over the weekend as a powerful nor’easter storm walloped the nation’s most densely populated region with winds topping 70 miles per hour. Tens of thousands more Americans suffered outages in Hawaii as Hurricane Nolo brushed past the storm-struck archipelago state. By Sunday night, however, just over 90,000 households remained without access to the grid, according to data on the U.S. Power Outage tracker. Of those, roughly 19,000 each were located in New York and Hawaii. As of this morning, the total number dropped to just under 54,000.

Americans experienced an average of 11 hours of power interruptions in 2024, nearly twice as many as the annual average in the decade before, according to an analysis last year by the U.S. Energy Information Administration. That was largely due to an increase in powerful storms right as the grid is growing older and the equipment needed to repair and upgrade the system is in short supply. An expert cited in a feature story in The New York Times Magazine last month on the mounting risk of blackouts in the U.S. warned that the country could be thrust into darkness for 18 months or longer if saboteurs took out major transformers.
President Donald Trump plans to slash fuel efficiency rules on new cars and light trucks Monday, in his administration’s latest effort to undo regulations meant to curb emissions and save drivers money over the operating lives of their vehicles. In a post on his Truth Social platform, Trump said he had “just approved new Fuel Economy Standards,” falsely claiming that former President Joe Biden had imposed a “mandate” to buy electric vehicles under the most recent update to the rulebook. “The Dumocrats cost our Great Auto Manufacturers $Billions, forced Americans into cars they never wanted, and wasted Billions on Chargers that were never built,” he wrote. “These new Standards will take the waste out of building cars in America.” In his own post on X, Secretary of Transportation Sean Duffy said the final proposal would be released Monday. It wasn’t immediately clear how the agency would alter the rules, but the shift is expected to significantly weaken the standards. The move highlights Trump’s reliance on what the Rhodium Group described earlier this year to my colleague Robinson Meyer as “outdated economics” to justify cars that are cheaper to manufacture but more expensive to drive.
China will import at least 10 million metric tons of coal from the U.S. next year and again in 2028, according to a White House fact sheet. The deal, which came out of last week’s summit between Trump and Chinese leader Xi Jinping, is part of an overall pledge to ease tariffs on as much as $30 billion of goods exchange between the two superpowers. In 2023, the U.S. exported roughly 5.9 million metric tons of coal to China, making the People’s Republic the fifth-largest overseas buyer of American coal that year, after India, Japan, the Netherlands, and Brazil. But U.S. exports overall dropped off last year after Beijing halted orders amid the trade war Trump kicked off. The latest purchase agreement helps to restore the American market share lost due to Chinese tariffs.
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New York wants to build 5 gigawatts of new nuclear reactors, the largest buildout of any other state and far more capacity than the U.S. has added nationwide in decades. During the New York Climate Week festivities last week, the head of the state energy office, the president of the grid operator, and top advisers to Governor Kathy Hochul appeared at a pro-nuclear summit to assure investors, industry officials, and rival states that Albany was moving full-speed ahead. In a public comment submitted to Hochul and state energy regulators last week, however, three dozen state legislators called nuclear reactors “environmentally destructive, expensive, and slow-to-build,” and called instead for devoting all Albany’s spending on new power generation to wind turbines, solar panels, and batteries. Of the signatories, nine lawmakers are Democratic Socialists of America, such as state senators Jabari Brisport, Julia Salazar, and Emily Gallagher — all close allies and friends of the nationally influential New York City Mayor Zohran Mamdani. Much of the rest of the list are self-described progressives.
But the former base of left-wing political power in the U.S. — labor unions — are taking the exact opposite position. In its own public comment, Climate Jobs NY, a coalition of unions that support decarbonization as a way to increase employment, said the only way for New York “to establish a carbon-free energy sector” is to “rely on nuclear power,” which just so happens to boast the most unionized workforce of any energy sector. “There is no other clean firm, or baseload power that can supply industrial operations at scale,” the organization wrote. “Solar, wind and battery storage are essential to our energy supply in the state, but they cannot provide all of the baseload power that our state depends on. For this reason, among others, nuclear must be a key part of New York’s energy future.” Fred Stafford, the pseudonymous energy writer and researcher who has written for Heatmap, pondered on X: “Can the Left be torn away from dead-end environmental nonprofits and renewables developers and instead align with the state’s climate-focused labor unions when it comes to nuclear?”
If you were looking for a sign that the European Union’s hydrogen ambitions are dimming, consider this: Brussels just announced that it was going after all but one of its member states for failing to enshrine the bloc-wide hydrogen rules into national law. The EU launched what are called “infringement proceedings” — a procedural punishment that can result in financial sanctions — against 26 of the 27 countries in the continental bloc. Brussels adopted the Hydrogen and Decarbonized Gas directive in 2024, and gave countries two years to pass national laws that match the guidelines for establishing domestic clean fuel industries. When the deadline passed early last month, just one nation had met the qualifications, according to Hydrogen Insight: Italy.
When I interviewed Ernest Moniz, the secretary of energy under former President Barack Obama, at a Climate Week event last Wednesday, he told me “nothing has hit the jackpot” on clean fuels just yet. But given that only 21% of end-use energy worldwide is served by electricity, the hunt for affordable, scalable, clean molecules is central to any potential decarbonization effort in the future.
Ford Motor produces more than 300,000 pickup trucks and sports utility vehicles at its assembly plant in Hermosillo, Mexico, every year. But the facility has been plagued lately by the kind of pest you normally find on city streets: pigeons. Enter: El Charro. The automaker’s “latest employee of the month,” according to The Wall Street Journal, is a hawk the Mexican plant brought on to hunt the pigeons. “It has given very good results,” Jesus Teran, central maintenance manager at Hermosillo and a 25-year veteran at the facility, told the newspaper. The bird’s name harkens to the Mexican term for cowboy.