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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.
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Just as Americans have started to revolt against expensive cars.
The car bubble couldn’t last forever. For years now, the steadily rising cost of new vehicles has led American drivers to take on longer and longer car loans — six, seven, even eight years, as opposed to the four or five that used to be typical. The average new car sale in America crept up to nearly $50,000 in November, a seemingly unsustainable number for a country drowning in debt.
But as 2025 draws to a close, we’re seeing more signs that Americans are starting to change their behavior, according to the Wall Street Journal. With people keeping their old cars even longer and more shopping used, new car sales saw very little growth this year, and are projected to look flat again in 2026. Even the seemingly bulletproof full-size trucks that make up the backbone of the U.S. auto industry aren’t immune. Kelley Blue Book says the Ram 1500, which has had a lock on the number three spot in all U.S. auto sales behind the Ford F-150 and Chevrolet Silverado, is slated to drop out of the top three this year.
A bear market sounds especially bleak for electric vehicles. EVs, after all, have long suffered an affordability problem, and the Trump administration this fall killed off the federal tax break meant to make them more cost-competitive with fossil fuel vehicles. A country of cost-conscious drivers is even less likely to pay a premium for battery power.
Yet as a new year dawns, EVs in America might be better positioned than you think.
For one thing, this isn’t the EV market of a couple years ago. That reckoning for too-expensive pickup trucks? Electrics already went through it. Consider the Ford F-150 Lightning, which was quietly discontinued this month. The fully electric version of America’s best-selling vehicle was an amazing piece of technology, with breakthrough features like the ability to back up a home’s power supply with the truck battery. But the pickup cost a fortune because of how much battery it takes to make an EV truck do the kinds of things a gas-powered F-150 can do. The inflated price, along with many truck buyers’ reluctance to go EV for political and cultural reasons, led to disappointing sales and shattered any dreams of an easy electrification of America’s massive pickup truck market.
As a result, electric pickup trucks were already moving toward the smaller, more affordable end of the market even before the F-150 Lightning died. Ford’s maintains that its mission to fix its flailing EV division will start with a far more affordable $30,000 midsize pickup. One of the most anticipated electric models is the bare-bones Slate truck, which is slated (pun intended) to start in the mid $20,000s.
We’re also on the cusp of seeing more new EVs that are cost-competitive with gas-burners even without the big tax credits. I’ve repeatedly lauded Chevy for delivering a version of the Equinox EV at $35,000, which helped the vehicle become the third-best-selling electric in America (and top seller that’s not a Tesla). A variety of electric cars arriving in 2026 will come in close to the $30,000 mark or below, a group that includes Toyota’s battery-powered version of its C-HR small crossover and the promising revivals of both the Nissan Leaf and the Chevy Bolt.
No, we still don’t have the $25,000 EV that would compete directly with a Toyota Corolla. But there’s ample opportunity for electrics to compete at the budget end of the car market, with no economy car segment left to speak of. KBB notes that the car industry this year offered just five models that truly cost less than $25,000, all things considered, down from 36 such vehicles in 2017. The car companies went all-in on more expensive — and more lucrative — trucks and SUVs as Americans displayed a limitless hunger for them. Now that buyers are finally curbing that appetite, there is a window of opportunity for the new wave of economy-focused EVs.
That’s not to say the EV market is headed for smooth sailing. As Mack Hogan at InsideEVs has written, battery-powered cars still have a major problem with “uncompetitive” models. Beyond the familiar success stories — Tesla’s Model 3 and Model Y, the Ford Mustang Mach-E, Hyundai’s Ioniq 5, and a few others — the car market is littered with EVs that sell just a few hundred or thousand models per year, often because they simply don't measure up to their gas rivals on cost or performance. It’s hard to see how those vehicles find their place, especially when some of them still suffer from disappointing battery ranges and driving comfort that doesn’t measure up to their more polished petroleum-powered cousins.
Still, there’s reason for hope that some of the affordable electrics will find their footing among penny-counting drivers, especially as more of them are enticed by the potential of saying goodbye to pumping gas and paying for oil changes. Because they started out expensive, EVs have yet to be seen as economy cars — in the United States, at least. But with more affordable models arriving just as the car market starts to creak, that could soon change.
On permitting reform passing, Oklo’s Swedish bet, and GM’s heir apparent
Current conditions: New Orleans is expecting light rain with temperatures climbing near 90 degrees Fahrenheit as the city marks the 20th anniversary of Hurricane Katrina • Torrential rains could dump anywhere from 8 to 12 inches on the Mississippi Valley and the Ozarks • Japan is sweltering in temperatures as high as 104 degrees.
In a Mad Libs of a merger story, President Donald Trump’s social media company inked a $6 billion deal Thursday to combine with fusion energy company TAE Technologies in a bid to start construction on “the world’s first utility-scale fusion power plant” next year. It’s a lofty claim, to put it minimally. Once the darling of private fusion investors, TAE has since fallen behind rivals pursuing technological approaches that are considered easier and better studied, such as Commonwealth Fusion Systems. A key difference between the two technologies is the fuel. While TAE's deuterium-fueled reactor has to get as hot as 1 billion degrees Celsius, Commonwealth Fusion’s tritium-deuterium fuel needs to reach only — I almost want to put “only” in quotes since we’re talking about a temperature nearly seven times hotter than the center of the sun — 100 million degrees. The more than two dozen private fusion companies racing to build the first power plant aren’t just competing against each other. China, as I have written in this newsletter recently, is outspending the rest of the world combined on fusion investments.
But the all-stock deal between TAE and Trump Media and Technology Group, the parent company of Truth Social, could capture more money from retail investors eager to get in on the fusion game. After all, the next-generation nuclear fission industry has a growing stable of startups whose stocks generate billions of dollars but whose businesses have no revenue. The merger shows “both the Trump administration’s commitment and investor appetite for clean, scalable fusion energy,” Greg Piefer, the chief executive of the rival fusion company SHINE Technologies, wrote in a LinkedIn post. Still, he said his startup, which Heatmap’s Katie Brigham wrote recently is already generating revenue selling medical isotopes, will be able “to scale faster than any other fusion company.” That’s a diplomatic way of analyzing a deal involving the president. When I called up Chris Gadomski, the lead nuclear analyst at the consultancy BloombergNEF yesterday morning, he told me, “I’m just flabbergasted.”
The House voted 221-196 Thursday to pass the SPEED Act, a bipartisan permitting reform bill to overhaul the National Environmental Policy Act. Eleven Democrats supported the bill, and just one Republican voted no. But GOP lawmakers made last-minute changes to appease right-wing critics of offshore wind, causing some Democrats who planned to vote yes to defect, Politico reported. That provision will almost certainly make passage in the Senate a challenge. As Heatmap’s Jael Holzman reported last week, top Senate Democrats vowed to oppose the legislation unless the bill barred executive branch agencies from yanking already-granted permits, a move designed to halt the Trump administration’s assault on offshore wind. As our colleague Emily Pontecorvo wrote yesterday, passing the House was one thing, “but now comes the hard part.”
Easing federal environmental assessments isn’t the only approach to speeding up energy deployment. As our other colleague Matthew Zeitlin explained yesterday, the Federal Energy Regulatory Commission is pushing to make it easier to plug data centers directly into power plants.
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The Department of Energy’s independent watchdog is opening an investigation into the agency’s decision to cancel $8 billion in funding for clean energy projects in California and other Democratic-leaning states. The bulk of the projects, including a $1.2 billion regional hydrogen hub, were located in California, the Los Angeles Times noted. The audit by the Energy Department’s Office of the Inspector General came in response to a plea from nearly 30 California lawmakers raising concern that the states were illegally targeted “for their perceived lack of support for President Trump.”
At the same time, a coalition of cities, consumer advocates, and green groups sued the Internal Revenue Service on Thursday over new Treasury Department rules “that unfairly and illegally discriminate against wind and solar projects.”
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The Swedish nuclear startup Blykalla raised $50 million in a fresh round of funding to hasten its work on building small modular reactors. The most interesting name among the investors? The American nuclear startup Oklo. In a statement to NucNet, the companies said that by aligning two of the fastest-moving reactor developers in the world, the companies could shorten “critical paths to development, reducing schedule risks and unlocking supply chain efficiencies.” While Oklo’s as-yet-unbuilt microreactors would use liquid metal as a coolant, Blykalla’s design uses lead. But both models qualify as fourth-generation reactors.
General Motors CEO Mary Barra may have identified her heir apparent, but first she plans to put him through a “tough test” in his new role as chief product officer. Sterling Anderson, the former head of Tesla’s self-driving Autopilot division, first joined the Detroit giant in May, in what the electric vehicle site Electrek called “a surprising move that put a tech executive in charge of the legacy automaker’s entire vehicle development program.” Now a new report from Bloomberg stated that Barra sees Anderson as a frontrunner to replace her when she eventually steps down.
Flying drones over whales to collect samples of exhaled breath from blowholes is considered a breakthrough in non-invasive health monitoring for marine giants in Arctic regions. Now, however, a study of wild humpback, sperm and fin whales in northern Norway has revealed for the first time a potentially deadly virus known as cetacean morbillivirus circulating above the Arctic Circle. The upside is that the new use of drones could support conservation by detecting the virus, which is connected to mass strandings, early before major death events. “Drone blow sampling is a game-changer,” Terry Dawson, a co-author of the study and a professor at King’s College London, said in a statement. “It allows us to monitor pathogens in live whales without stress or harm, providing critical insights into diseases in rapidly changing Arctic ecosystems.”
The SPEED Act faces near-certain opposition in the Senate.
The House of Representatives has approved the SPEED Act, a bill that would bring sweeping changes to the nation’s environmental review process. It passed Thursday afternoon on a bipartisan vote of 221 to 196, with 11 Democrats in favor and just one Republican, Brian Fitzpatrick of Pennsylvania, against.
Thursday’s vote followed a late change to the bill on Wednesday that would safeguard the Trump administration’s recent actions to pull already-approved permits from offshore wind farms and other renewable energy projects.
Prior to that tweak, the bill would have limited the Trump administration’s ability to alter or revoke a federal permitting decision after the fact. The new version, adopted to secure votes from Republican representatives in Maryland and New Jersey, carves out an exception for agency actions taken between January 20 and the day the law takes effect.
"Last-minute changes to the SPEED Act undercut the bill’s intent to provide certainty to American business,” Rich Powell, the CEO of the Clean Energy Buyers Association said in a press release after the bill passed. “We hope the Senate will now take this language and strengthen those protections for existing and new projects needed to maintain grid reliability and meet growing electricity demand.”
At a high level, the SPEED Act would hasten federal permitting by restricting the evidence that federal agencies consider during the environmental review process and limiting the amount of time a court can deliberate over challenges to federal decisions. It would also disallow courts from vacating permits or issuing injunctions against projects if it finds that a federal agency violated NEPA. The changes would apply to permits of all kinds, including for oil and gas drilling, solar and wind farms, power lines, and data centers.
Environmental groups were generally against the bill. “Far from helping build the clean energy projects of the future, the SPEED Act will only result in an abundance of contaminated air and water, dirty projects, and chronic illnesses with fewer opportunities to hold polluters accountable in court,” Stephen Sciama, senior legislative council for Earthjustice Action, said in a press release on Thursday.
But proponents, such as the conservative energy group Clearpath Action, argue the bill will enable American industry to “invest and build with confidence” by cutting unnecessary red tape, improving coordination across agencies, and setting clearer rules and timelines for judicial review.
In House floor testimony on Thursday morning, Republican Bruce Westerman of Arkansas, the SPEED Act’s lead sponsor, said the bill had the backing of more than 375 industry groups and businesses, and bipartisan support in both the House and Senate. “The SPEED act will deliver the energy and infrastructure Americans need,” he said.
The bill lost at least one significant industry supporter after Wednesday’s changes, however. The American Clean Power Association, which had previously joined the American Petroleum Institute and others in a letter urging the House to pass the bill, withdrew its support, calling the new language a “poison pill” that “injects permit uncertainty, and creates a pathway for fully permitted projects to be canceled even after the Act’s passage.”
The Solar Energy Industries Association also denounced the bill’s passage.
Contrary to Westerman’s assertion, the bill’s fate in the Senate is far from certain. “Even if the House passes this bill today, it is going nowhere in the Senate,” Democratic Representative Jared Huffman of California asserted on the floor on Thursday. “What a missed opportunity to tackle a serious issue that Democrats were very interested in working on in good faith.”
Some Senate Democrats came out in opposition of the bill even before the late-breaking amendments. Senators Brian Schatz of Hawaii, Sheldon Whitehouse of Rhode Island, and Martin Heinrich of New Mexico told my colleague Jael Holzman that the bill did not do enough to ensure the buildout of transmission and affordable clean energy, but that they “will continue working to pass comprehensive permitting reform that takes real steps to bring down electricity costs.”
Some see getting the SPEED Act through the House as merely a starting point for a more comprehensive and fair permitting deal. Democratic Representative Adam Gray of California told Politico’s Joshua Siegel Thursday that he was voting in favor of the bill despite the last minute changes due to his faith that the Senate will hammer out a version that provides developers of all energy stripes the certainty they need.
His Californian colleague Representative Scott Peters, on the other hand, voted against the bill, but committed to getting a deal done with the Senate. “We need to get permitting reform done in this Congress,” he said on the House floor Thursday.