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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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Why Spencer Gore decided it was time for Bedrock Materials to close up shop.
It wasn’t too long ago that the battery world was abuzz over sodium-ion batteries and their potential to be a cost-effective domestic competitor to the Chinese-dominated lithium-ion industry. The prevalence of sodium and the early-stage sodium-ion supply chain seemed to give the U.S. a shot at developing the next big battery for electric vehicles and energy storage systems.
But this past weekend, a promising sodium-ion startup called Bedrock Materials announced that it was shutting down and returning most of its $9 million seed funding to investors. The reason, according to CEO Spencer Gore? Its business model no longer made sense.
“We were responding to a very unique moment in the history of the battery industry,” Gore explained to me about his decision to start the company, which made cathode materials for sodium-ion batteries, in 2023. “Lithium prices had gone up about 10-fold, and so had other battery minerals by lesser degrees.” Experts predicted that the world was in for a long-term lithium shortage. Then the opposite happened: Lithium producers rapidly ramped up supply at the same time EV demand growth slowed, leading to oversupply and a 90% drop in price.
Before all of that happened, Bedrock saw the EV market as a good bet. Automakers were telling Gore that their first priority was lowering costs, and sodium-ion batteries seemed well positioned to help with that. The EV industry was also orders of magnitude larger than the battery storage market, and stood to benefit from the $7,500 consumer tax credit in the Inflation Reduction Act, which incentivizes the use of domestic minerals and battery components.
The election of Donald Trump threw the future of that tax credit into sudden doubt. The cratering raw minerals market, on the other hand, didn’t immediately translate into falling prices for lithium-iron-phosphate cathodes, the chemistry Gore saw as Bedrock’s main competitor, he told me. So long as this lasted, he thought, Bedrock’s business would be viable. But it didn’t.
“LFP prices have now crashed down to the point where it would almost be a viable business to extract the lithium from them and sell it on the open market,” Gore told me. “The active material producers are running single-digit margins. And so when that happened, it just became clear that the economic case for sodium had collapsed.”
Not everyone agrees that the domestic sodium-ion industry is doomed. Bay Area-based Peak Energy, for example, is still chugging away, and the company’s president and chief commercial officer, Cam Dales, told me he doesn’t expect to face the same headwinds as Bedrock. For one, Peak is targeting the sodium-ion energy storage market rather than the EV market, which means that energy density — sodium-ion’s weak point — is not as important a factor. Secondly, Peak is not in the business of producing battery materials, which Dales sees as an inherently risky and low-margin proposition. Rather, the company plans to produce battery cells domestically by 2028, while sourcing cathode and anode materials from other, ideally domestic, manufacturers.
So while the economic benefits of sodium-ion batteries have certainly diminished, Dales told me that the potential performance benefits — longer cycle life, greater efficiency, and ability to withstand high temperatures — are exceeding his initial expectations. Specifically, Peak is developing a cathode chemistry composed of sodium iron phosphate powder, which Dales claims will save customers money over the 20-year lifetime of a storage project, even if the upfront cost of sodium-ion battery cells is now higher than LFP. “System-level and project-level economics vastly outweigh smaller differences at the cell level,” Dales claimed.
The two industry leaders know each other well, as they used to work together at the lithium-ion battery manufacturer Enovix, where Dales was the chief commercial officer and Gore led the EV products team. Dales said he was bummed to learn of Bedrock’s closure, but not surprised. For domestic battery materials producers such as Bedrock to thrive, Dales told me, he thinks temporary policies that protect and nurture their growth will be necessary to ensure they’re not instantly outcompeted by Chinese incumbents.
“Absent that, it’s hard to see how you build a new materials company in the U.S. and compete against a fully scaled supply chain in China,” he told me.
Indeed, when I asked Gore if there was anything he wished he had done differently, he responded without hesitation, “I would have gone to China the very first day that I founded the company.” When he did visit months later, he said his main takeaway was that “most of the sodium-ion companies in China were producing material at scale, but losing money doing it,” even though they were “essentially producing sodium-ion materials on the exact same production lines that they had been using for lithium-ion materials.” The interchangeability of the two production processes made it crystal clear to Gore that Chinese battery giants such as CATL and BYD already had a tremendous advantage over the U.S., which doesn’t have scaled-up battery facilities.
This is why Gore now rejects the notion that the U.S. could win the race to scale up sodium-ion. “If you lost it for lithium-ion, you’ve already lost it for sodium. It’s the same thing, same equipment, same process.” Now he’s more interested in figuring out a way to facilitate a “once-in-a-generation” transfer of knowledge and technology between the U.S. and China. As it stands, he told me, “they’re 20 years ahead of the rest of the world, and we can’t even tie our own shoes.”
Ironically, bolstering domestic industry was the primary rationale behind Trump’s “Liberation Day” tariffs, which have since been put on pause for every nation except China, which will now be subject to 145% levies. And while Dales thinks tariffs would be a net-positive for his company, Gore told me he doesn’t expect them to help the domestic sodium-ion industry overall.
For one, tariffs will make the price of constructing domestic battery materials and cell facilities even more expensive than it already is relative to China. “So that’s one thing nudging us towards spreading out the factory costs over more energy dense cells,” Gore told me. Another incentive to optimize for energy density, tariffs or not, is the 45x tax credit, which gives cell manufacturers $35 per kilowatt-hour for domestically produced cells. “On a global basis, there’s a strong incentive for the most energy dense cells to be produced in the U.S.,” he argued.
While Peak will also have to contend with higher construction costs due to Trump’s tariffs as it builds out its sodium-ion cell production facility, the company’s customers are independent power producers and utilities that can pass cost increases onto ratepayers. This will mean higher electricity costs for Americans, which Dale acknowledged is not ideal, but he also told me, “I don’t think it actually affects our business that much.” While the company wouldn’t publicly disclose its partnerships, Dales said it’s “working with the majority of the large IPPs in the country,” as well as “a number of” utilities.
Gore thinks it’s possible that the sodium-ion performance advantages Peak is betting on will prove to be compelling for customers and investors in the energy storage space. It’s just not a bet he was willing to take. While Bedrock did explore pivoting into the energy storage market, Gore said he concluded that LFP batteries could likely be engineered to achieve the same cycle life, efficiency, and operating temperature benefits that Dales thinks makes sodium-ion stand out.
“Ultimately, we failed to find a niche where we thought that sodium was the best product,” Gore told me. Some investors were initially reluctant to accept that. They encouraged Bedrock to keep going, to pivot, to place a different bet. They had certainly never had a founder try and give back money before, Gore said. But to him, it just made good sense.
“It’s still possible that we would have succeeded,” he told me. “But I think that the likely size of the success and the likelihood of a success, given everything that we’ve now learned, is considerably smaller. The best expected value for us and for our investors was to simply return their money.”
Impulse Labs founder Sam D’Amico breaks down the reasons tariffs won’t help.
The Impulse Cooktop is, as my colleague Emily Pontecorvo has accurately described it, a “status stove.” Made out of “sleek black glass” with “burners that resemble a DJ turntable,” the kitchen appliance also has a large battery that allows it to double as an energy storage device.
The company that makes this stove, Impulse Labs, is thus exposed to two very volatile policy areas: subsidies for clean energy (its stoves, which will start shipping this summer, are currently eligible for a 30% tax credit that knocks down the prices from $5,999 to $4,200) and the global electronics supply chain.
I spoke with Impulse founder and chief executive Sam D’Amico on Wednesday, before President Trump announced his modified tariff policy eliminating so-called “reciprocal” duties and hiking the rate on Chinese goods to 145%. I wanted to get a sense of how the electrical and appliance supply chain — a key aspect of home decarbonization, and one that’s intensely globalized — was being affected by Trump’s on-and-off tariff announcements.
“Our attitude is, ‘Don’t panic and wait,’” he told me. “I don’t think we’re in a position to actually make changes right now, because it appears that things may settle out,” he said he’d been telling his staff — an attitude that was proved wise mere hours later when Trump largely reversed course.
I reached back out to D’Amico on Thursday after Trump’s tariff reversal to see what, if anything, had changed for him. “Currently we tariff tons of manufacturing inputs (since many come from China), which makes it very challenging to onshore production vs. move final assembly to a non-China country,” he told me by email. “The changing policies make it tricky to plan ahead as hardware has significant latency from design to mass production,” he added, quoting top Trump advisor Elon Musk: “The factory is the product.”
Impulse does have U.S.-made components, namely semiconductors (although those chips get packaged in Malaysia). But certain parts of the electronics and energy storage supply chain are always going to be in China, practically speaking. Impulse stoves feature lithium-iron-phosphate batteries, and “all LFP batteries are built in China,” D’Amico explained.
Pointing to none other than YouTube star-turned-consumer packaged good entrepreneur MrBeast, who has been vocal about the tariffs making it comparatively less expensive for him to produce his chocolate bars outside the country, D’Amico walked me through what it would be like to try to build a battery pack in the United States. You would likely have to import the cells from China, which controls almost all of the LFP cathode active material market. With the new tariffs, what was a $100 per kilowatt-hour U.S.-made battery becomes an over $200 per kilowatt-hour U.S.-made battery. “Assembly in the United States is presently disincentivized,” D’Amico said.
Even manufacturing relatively simple components in the U.S. can be expensive. The Impulse stove is 30 inches, whereas many ranges are 36 inches, and the company has received numerous requests to offer an adapter. At first D’Amico and his team thought, “This is a simple thing to build in the United States,” he told me. “It’s a painted sheet metal part.” U.S. sheet metal pourers quoted him $750. The Chinese quote? Below $200. Even with a 145% tariff, manufacturing in China would still be cheaper.
“Now imagine that all of these vendors are going to be super slammed because of the tariffs and stuff like that — and also the tariffs on steel and aluminum,” D’Amico added. For these reasons and more, he told me, he’s extremely skeptical of any plan to encourage American manufacturing by way of tariffs.
D’Amico told me that American contract manufacturers, such as they exist, either “suck,” “build exquisite medical device stuff,” or are too big to deal with startups. Figuring out contract manufacturing is so important, he said, that hardware entrepreneurs should map out the supply chain for their product first, then design their business around it.
“A really big failure point of hardware startups is they’ll go and build stuff out of — maybe not hobbyist components — but they’ll build an exquisite first prototype, and then they’ll have to realize they have a painful conversion process to figure out how to scale this thing.”
D’Amico said he started talking with contract manufacturers in 2022. Back then, the existing 20% tariffs on China were already a difficulty to consider. “Even if you built it in the United States and you were shipping units last year, you’d run into problems just because of the kind of tariffs hitting all of your bill of materials.”
The Impulse Cooktop is more vertically integrated than many big brand appliances. The sensors, power electronics, and the battery itself are all custom designed by Impulse, meaning that more of the value of the product accrues to Impulse as opposed to suppliers and manufacturers. (Think of an iPhone: It’s “designed by Apple in California,” and Apple is a much more valuable company than Foxconn, its contract manufacturer.)
But this also means that, because of its relatively small scale, Impulse is essentially sharing equipment time with other companies who use the same manufacturers. To be able to justify having their own equipment and their own manufacturing line, Impulse would need enormous scale to justify the financing costs and tariffs they would face.
“I’m not Elon,” D’Amico said. “We’re not making a million stoves this year.”
Rockland Solar accuses East Fairfield, Pennsylvania, of “municipal extortion.”
A solar developer is accusing a Pennsylvania town of requesting a $150 million bribe to get its permits, calling it “municipal extortion.”
Rockland Solar – a subsidiary of utility-scale solar developer Birch Creek – filed a federal lawsuit last week accusing officials in the northern Pennsylvania township of East Fairfield of intentionally moving the goalposts for getting permits to build over the span of multiple years. Rockland’s attorneys in the litigation describe the four officials controlling the township’s board of supervisors as engaging in “corrupt” behavior to deny the project, “ultimately culminating in the solicitation of a bride of more than $150,000,000” in exchange for approval of its application to develop land in the township.
The federal complaint scans as a horror story in solar development. Applications for Rockland Solar’s project were first filed in 2021 and granted approval from the township’s zoning officials in 2022, per the company’s legal complaint. But things seem to have gone south when Rockland Solar sought approval of its first land use application from the town, as replies to emails from town officials became scattershot and sporadic.
In August 2024, per the lawsuit, East Fairfield officials scheduled a crucial public meeting to decide whether to approve the application without notifying Rockland Solar itself, which the company claims was an intentional move “in corrupt and underhanded bad faith” meant “to consider, and then deny” the application “without providing due process.” According to the lawsuit, one of the reasons for the denial was that the project was located within the township – despite it already being approved by zoning officials.
Rockland Solar then took the town to Pennsylvania claims court over the decision because it was reached after a statutory deadline, according to the lawsuit. Amidst this legal fight, the company submitted a second application to build the project – making what the company says were many size and setback changes intended to address the reasons for the apparent denial. East Fairfield ultimately denied the project again. But the developer kept trying, negotiating in apparent good faith with the town’s lawyers to try and reach an agreement.
Then came the alleged request for a bribe. Per a letter cited in the legal complaint, officials asked the developer to pay the town annual payments every year the project was operating – starting at $5,000 and then increasing 25% “every year for the life of the facility,” and that land owners bordering the property would also need to be “compensated 10% of their current property value.” Rockland Solar’s attorneys calculated the annual payments alone to total at least $3 million in the thirtieth year of the project and $30 million a decade later.
Altogether, Rockland Solar’s attorneys landed on the whopping $150 million figure, stipulating that this figure doesn’t include the payments to neighboring property owners. The company argues that this “solicitation of money by a township commissioner to a developer” in exchange for “favorable treatment of a land use application” violated the state bribery statute.
I’ve seen a lot of conflict writing The Fight – including lots of lawsuits filed by developers and residents alike – but I’d never seen an escalation this profound. Normally, suing the town you’re building a project in is a bad idea because it can spoil the well of public trust. I can’t help but think this maneuver was a last resort for Rockland Solar.
It’s also quite rare to get an inside look at the negotiations between a developer and a town. We’re used to seeing community benefit agreements and compacts come and go and I’ve told you how those deals have mixed results. Rockland Solar is now a case study in perhaps one of the worst ways those talks can end up.
I reached out to Rockland Solar’s attorneys, as well as Birch Creek, but failed to hear back. I also tried to reach officials in East Fairfield to hear their take on these extraordinary claims, but no dice. Here’s hoping that writing this leads to them reaching out as well, because this is fascinating and I want to learn more for all of you!