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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 companies just launched a major VPP play.
For all the hype surrounding virtual power plants, they’re still a niche player on the U.S. electric grid. A new partnership between three of the biggest residential energy companies in the country — Tesla, Sunrun, and Renew Home — aims to recast VPPs into a leading role.
The companies announced on Wednesday that they have more than 16 gigawatts of dispatchable VPP capacity available today to deliver to utilities and data center developers throughout the country. That’s about the same as 16 nuclear reactors, except instead of generating power round the clock from a central plant, the companies aggregate unused electricity capacity from thousands of individual home solar and battery systems and programmable thermostats, and can make it available for several hours at a time.
Today, the companies bid these resources into electricity markets as a sort of bespoke grid service. A few times per year — often in the summer months when demand spikes — the grid operator in California might ask Sunrun to switch on its VPP to prevent a blackout. That means Sunrun’s rooftop solar and battery customers all either begin exporting excess power to the grid or rely more on their energy storage systems for their own power needs, reducing strain on the grid. Tesla operates similar programs, some in partnership with Sunrun. Renew Home, which spun out of Google Nest, does the same thing but with thermostats and water heaters, nudging temperatures on thousands of devices up or down during peak demand hours.
“A lot of our assets are enrolled in a contract where they can be used up to 20 times per year,” Paul Dickson, the president and chief revenue officer of Sunrun, told me. Now the company, along with its partners, are making the pitch to utilities and hyperscalers to view VPPs as 365-day resources, and more fully integrate them into their grid planning.
It’s a “turnkey” solution, the companies wrote in a press release, “deployable in months, not years,” that requires “no additional hardware, software, interconnection, water, or land usage for offtaking parties.”
VPPs also typically kick back some of the proceeds they earn from the electricity market to the residential customers hosting the solar panels, batteries, and programmable thermostats providing the power, meaning they can meet growing energy demand while helping to lower household energy bills. Sunrun and Renew Home paid out a combined $67 million in customer rewards last year.
About 60% of the 16 gigawatts the companies have available are tied to Renew Home’s enrolled devices, with the remaining 40% coming from Sunrun and Tesla’s solar and battery assets, Dickson told me. The capacity is also spread out geographically. There’s about 1.7 gigawatts available in Texas — the second largest data center market in the country, Dickson pointed out. There’s 300 megawatts available in Virginia, which the companies expect to grow to 500 megawatts by 2030.
“Unlike a traditional power plant that's fixed in size, this number grows every single day as the combined three companies continue to add additional capacity,” Dickson said. Sunrun alone plans to more than double its energy storage capacity by the end of 2028.
If utilities and large industrial customers buy the VPP pitch, the companies will be able to expand even more quickly, he added. If regulators or utilities come back and say, we’ll take your existing capacity today, and if you can add another gigawatt in the next year, here’s what we’ll pay, Sunrun could potentially reduce the upfront cost to customers to host the solar and battery installations, driving faster adoption.
The new partnership follows a similar announcement earlier this month from the VPP company Voltus, which signed a three-year agreement with Google. Voltus will provide up to 100 megawatts per year of capacity for Google in PJM, the country’s largest (and most constrained) electricity market covering much of the Midwest and mid-Atlantic. In that case, however, Voltus is using the deal with Google to finance the VPP, with the capacity set to come online by 2027.
The Tesla/Sunrun/Renew Home group is simply announcing they are open for business — they haven’t signed up any offtakers yet. Dickson told me the companies wanted to “make everybody aware that there is this uncontracted capacity, and make sure that it goes to the place that it can be most impactful.” Wednesday’s announcement is accompanied by a live map that shows where the capacity is. The companies did, however, already bid over a gigawatt of capacity into PJM, the larger energy market that Virginia is a part of, as part of its emergency procurement to meet near-term load growth in the region, and are waiting to hear if they were selected.
Last year, the electrification advocacy group Rewiring America published a paper arguing that hyperscalers could free up grid capacity for at least a third of the load growth expected from data centers if they paid for residential households to get heat pumps. All of that capacity would simply be the result of swapping inefficient appliances for more efficient versions, reducing the overall energy use of the homes. If hyperscalers also financed residential solar and storage upgrades, they could more than meet data center demand, the report posited.
That’s not how these VPP proposals are going to work — residential customers will still have to pay something to Sunrun and Tesla for their solar panels and batteries. But Ari Matusiak, the executive director of Rewiring America, told me he viewed these new VPP partnerships as a step in that direction. Today, energy markets are largely bifurcated between residential market activity and large industrial customers. “Where we are going is toward a world where we think about the household as actual energy infrastructure and not simply an end of the line billpayer,” he said. “Once you start doing that, it changes the economics of how those household upgrades are treated and what the opportunities are.”
Current conditions: The warehouse fire in Boyle Heights is raging for a third day, spewing dark smoke over the Downtown Los Angeles skyline • The death toll from Western Europe’s heatwave has reached into the dozens • An 18-wheeler carrying more than 400 beehives overturned in eastern Texas and filled a small neighborhood with more than 2 million honeybees.
Wally World is soon to be powered by the atom. On Tuesday, Walmart announced a 15-year deal with Constellation, the nation’s largest operator of nuclear plants, for a chunk of the electricity coming from the Dresden Clean Energy Center in Illinois. The agreement included about 176 megawatts of wholesale supply from the two-reactor station southwest of Chicago, including 30 megawatts of expanded generating capacity through “uprates” — upgrades that allow operators to get more power out of an existing unit. Over the past two years, tech giants such as Google, Microsoft, and Meta, have bought shares of the power coming from nuclear power stations as the companies sought steady supplies of clean electricity for their burgeoning data centers. But the Walmart deal stands out as one of the first to involve a major brick-and-mortar retailer. “We’re constantly evaluating new capabilities and energy solutions that help ensure the electricity we rely on is dependable, responsibly produced, and built to support long-term growth,” Shayne Wahlmeier, Walmart’s senior vice president of energy, said in a statement.
The Trump administration just unveiled one of its biggest bets on nuclear power yet. The Department of Energy announced $17.5 billion in low-interest loans for utilities to pay for the equipment needed to order new Westinghouse AP1000 reactors. The program marks arguably the most significant effort yet to reclaim U.S. control over its flagship reactor design. While the two 1,100-megawatt units completed at Southern Company’s Alvin W. Vogtle Generating Station in 2023 and 2024 were the first installed in the U.S., China has been building its own version of the reactors at an industrial scale for years. The program will support up to 10 reactors, including two per venture with as many as five utilities. The power companies, currently in talks with the administration, have not yet been named. But Dan Sumner, the chief executive of Westinghouse Electric, told The Wall Street Journal the deal “really kick-starts fleet-scale nuclear development in the United States.” As my colleague Robinson Meyer wrote last night: “I hesitate to praise the project's climate bonafides at the risk of discouraging the Trump administration, but it is worth noting that if this project were to succeed, it would be one of the largest state-assisted build-outs of zero-carbon electricity in recent American history. But it would still take some time to arrive: These reactors aren’t forecast to come online til 2035.”
Yet another behemoth solar farm has come online. On Tuesday, the developer rPlus Energies said its Green River Energy Center had started operations. The facility in central Utah with 400-megawatts of solar panels and 1,600 megawatt-hours of batteries is now the largest solar-and-storage plant within PacifiCorp’s six-state territory out west, including Oregon, Washington, California, Utah, Wyoming, and Idaho. “Operation Gigawatt is about ensuring Utah has the reliable, homegrown energy needed to power opportunity for generations,” Utah Governor Spencer Cox, a Republican, said in a statement. “Green River Energy Center represents the kind of large-scale energy investment we need to deliver reliable energy, support rural Utah, and help power the next generation of prosperity across our state.”
The opening comes as solar is now generating more U.S. power than coal, as I told you recently.
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The Supreme Court ruled Tuesday that Exxon Mobil has the right to sue a Cuban-owned company to recoup more than $70 million in 1960 dollars from an oil complex seized by the Cuban government after Fidel Castro’s revolution. Havana later transferred the ownership of the refinery, terminals, plants, and service stations to Corporación Cimex, the state-owned conglomerate. The lawsuit could now see the oil major try to recover more than $1 billion in losses. “Today’s decision is a critical moment in a 60 year effort to be compensated for what the Cuban government illegally seized,” Exxon spokesperson Todd Spitler told E&E News in an emailed statement. “It reflects two things: the merits of our argument and the fact that our company will fight a good fight for as long as it takes.”
The Trump administration understands the importance of refining cobalt — that’s why, as I reported last year, the Pentagon’s Defense Logistics Agency is pumping money into a startup that promises a new and cheap way to process the mineral. Canada’s Sherritt International started shutting down its Fort Saskatchewan refinery after the U.S. expanded sanctions on Cuba, halting exports of a feedstock supply needed for the plant in Alberta, Canada. The move, in addition to the Supreme Court ruling, come amid intensifying pressure by Washington on the Cuban regime.
California is once again following a New York trend. Just weeks after Albany sued to stop the Trump administration’s bid to pay TotalEnergies to give up its offshore wind projects, Sacramento is joining the litigation. “At a time when the country needs more reliable and sustainable power supply, the Trump Administration is busy using taxpayer money to strike backroom buyouts that make clean-energy projects disappear,” California Attorney General Rob Bonta said in a statement. “California won’t stand idly by as the Trump Administration illegally strikes deals to kill offshore wind projects and replace them with more windfalls for his fossil fuel friends; we’re putting the Administration on notice that we intend to sue.”
Rob checks in with Commodity Context’s Rory Johnston as the Iran War (hopefully) draws to a close.
When Iran closed the Strait of Hormuz earlier this year, experts projected oil prices would go to $200 a barrel. But then… they didn’t. In fact, while gasoline prices rose in the United States, and Europe and Asia suffered higher costs, the resulting energy crisis wasn’t even as bad as what followed Russia’s 2022 invasion of Ukraine.
Why? China. The country seems to have absorbed the costs of Trump’s war of choice by releasing hundreds of millions of barrels from its strategic stockpile. On this episode of Shift Key, Rob is joined by Rory Johnston, an oil markets researcher and the author of the Commodity Context newsletter. They discuss China’s massive (and quiet) intervention, why it’s “the most important thing we learned” from the Iran War, and what it means for the future of energy and geopolitics. Shift Key is hosted by Robinson Meyer, the founding executive editor of Heatmap News.
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Mentioned:
China Oil Demand Doubts, Rory’s 2023 article about Chinese strategic stockbuilding
Previously on Shift Key: Why the Iran Ceasefire Hasn’t Ended the Energy Crisis, featuring Rory
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Music for Shift Key is by Adam Kromelow.