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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 proposal resolves an issue that has bedeviled the industry since 2022.
Is Rosemont about to be BAAJA blasted away?
In a 2022 decision formally titled Center for Biological Diversity v. U.S. Fish & Wildlife Service, the Ninth Circuit Court of Appeals ruled that Rosemont Copper Company its claim under the General Mining Act of 1872 did not give the company license to dump literally millions of tons of waste rock on adjacent Forest Service land. Though Rosemont argued that the use fell under the law’s provisions for “mill sites” on public lands used for mining, the court found that because the parcel in question lacked valid mining claims of its own, the Mining Act did not justify its use under its own permissive regime.
The conservative energy group ClearPath Action described the decision as “a significant departure from long-held mining practices.” Industry groups said that the decision would vastly extend and complicate the process of mining on public lands by putting areas with mineral claims into a separate legal and permitting category from adjacent land that had customarily been considered part of the mining development.
Almost immediately after the court decision, the mining industry and its allies in Congress got to work trying to “fix” the Rosemont decision in order to restore the pre-2022 status quo.
One proposed fix — the Mining Regulatory Clarity Act — has been introduced several times in both houses of Congress, including as far back as 2023 in a Senate bill co-sponsored by Catherine Cortez Masto of Nevada and Jim Risch of Idaho.
Another version of the bill, sponsored by Nevada Republican Mark Amodei, Nevada Democrat Steven Horsford, and Alaska Republican Mark Begich, passed the House of Representatives late last year with a handful of Democratic votes. Both bills would have explicitly established that miners could claim public land for waste rock disposal as long as it was “reasonably necessary” and “reasonably incident” to mineral development.
Now they may all be getting their wish. The comprehensive permitting bill introduced by Republican and Democratic leaders in the Senate known as the Bipartisan American Affordability and Jobs Act, includes the full text of the Mining Regulatory Clarity Act
Both parties have been trying to jumpstart the domestic mining and critical minerals industry, especially for materials key to energy sectors, such as copper and lithium. The long lead time it takes to permit and open a mine is one of the major barriers to developing the domestic mining industry (along with nasty price competition from overseas miners and refiners, especially those controlled by Chinese firms).
This is not the first time a bipartisan permitting bill has included what’s known a “Rosemont fix.” There was also one in the 2024 Energy Permitting Reform Act, and in the Senate FREEDOM Act introduced by Cortez Masto and Arkansas Republican Tom Cotton this past summer.
You may have noticed lots of Nevadans associated with these bills. That’s because “Nevada is to mining as Texas is to oil and gas,” Aaron Mintzes, deputy policy director of Earthworks, a frequent and vigorous adversary of the mining industry, told me
While environmental groups generally supported the Rosemont decision, some groups supporting the clean energy industry backed the Mining Regulatory Clarity Act, including Bipartisan Policy Center’s lobbying arm, the clean energy trade group Advanced Energy United, and the Zero Emission Transportation Association, which includes several copper and lithium companies among its members. (Mintzes described ZETA as “the lithium mining lobby” and an “outlier” among clean energy groups in supporting the Mining Regulatory Clarity Act.)
Instead of a technical fix that would comply with the spirit of existing law, Mintzes described the changes to mining regulation in BAAJA as giving mining companies “a nearly unlimited amount of public lands for their waste dumps, for their roads, for their pipelines, for their transmission lines, and for any other purpose that would be reasonably incident to mining.” That goes beyond the mill sites envisioned by the 1872 law, he said.
The National Mining Association, on the other hand, praised the bill Wednesday, with its president Rich Nolan saying in a statement that the existing permitting process is “mired in duplication, endless litigation and uncertainty,” and that “elected officials on both sides of the aisle have long acknowledged that the status quo cannot continue.”
Albert Gore, the executive director of the Zero Emission Transportation Association, told me that there was a “broad recognition” among miners, refiners, and operators that the Rosemont decision required a statutory fix.
“It needed to be clarified in order to remove uncertainty. It's hard enough to invest in mineral production in the United States,” Gore said.
BAAJA’s mining provisions also include the Abandoned Hardrock Mine Fund, which would be funded by maintenance fees collected by the Department of the Interior under the same 19th century mining law. This fund would support a program established by the 2021 Bipartisan Infrastructure Law to clean up abandoned mining sites.
In a transcript of a strategy call between environmental organizations on the BAAJA published by Punchbowl, Mintzes described the fund as “the one good thing I spotted in this bill so far.”
Exploratory projects are making a splash in Maine and Alaska.
A legal brawl is brewing over what could be the nation’s first underwater data centers.
Two subsidiaries of a new LLC named DeepGreen have applied for “preliminary” permits from the Federal Energy Regulatory Commission that would give four years of permission for studies and analysis towards constructing underwater data centers off remote coastlines in Maine and Alaska. The data centers as proposed would be powered entirely by tidal energy, as in, the power of waves themselves – a technological innovation from hydropower still being piloted around the world. Project descriptions submitted to FERC lay out what these data centers would look like in broad strokes: hundreds of hydrokinetic turbines, dozens of underwater “data center pods,” and miles of subsea cable. The permits would not authorize construction, which would need its own lengthy review process. But these early green lights would tee both areas up for years of potential conflict over hypotheticals that feel real to those on the ground.
There are upsides from purely a carbon emissions perspective. Relying on tidal energy suggests they’d be greenhouse gas-free, powered by the energy of the ocean. It would also eliminate the land use problem that upends so many AI data center projects. There are also clear environmental risks, as they’re also being suggested in ocean areas often coveted for protection, off coastlines where it’s unclear if the neighboring communities will accept them.
DeepGreen’s Alaska project is proposed within a more than 1,000-acre channel of the Cook Inlet, an estuary coveted by fishermen and wildlife conservation advocates, where fights over resource development already occur often. The upstart company’s Maine project is planned for the northernmost tip of the state, in the Bay of Fundy, which shares a transnational border with Canada. Canadian tidal power generation for the general populace marginally exists today in the Bay of Fundy – with major stipulations for marine life protection because it affects the general nature of water currents.
It’s crucial to note neither project has much information available online, sans brief text file project descriptions available through FERC’s online filing database. There is no public-facing website to date for the project, or for DeepGreen itself. When I contacted Louis Wolfson, a vice president at the company who is listed on company filings, he declined to talk about the developments over the phone and suggested I contact him at an email address listed in FERC application documents. That email address uses a website – “DeepGreenCoastal.com” – that does not seem to exist.
Still, we already know enough to say both development areas are likely to require substantial federal review. Not only does their presence in these waters almost necessitate it but both development areas receive considerable whale traffic. DeepGreen has already acknowledged a need to coordinate passive acoustic monitoring and “non-invasive study methodologies” with the National Marine Fisheries Service, the federal marine protection agency run out of NOAA. The Bay of Fundy is a prominent summer home for the endangered North Atlantic Right Whale and the National Marine Fisheries Service has already intervened in the FERC case for the Maine project, signalling in its filing that Endangered Species Act and fish habitat consultations “may be necessary for the project.”
The Center for Biological Diversity has also filed motions to intervene in both FERC cases, which they tell me is a prelude to potential litigation. “Putting one of these in the ocean just seems like a dystopian nightmare but it was especially alarming because of the areas they want to put these in,” Kristen Monsell, CBD Oceans Program Litigation Director, told me in an interview. “[The motions] are a step required in order for us to participate in the permitting process at FERC and then preserve our ability to challenge the decision in court if we think that’s necessary.”
In Maine, the coastline neighbors are the city of Eastport, which is vociferously opposed to this data center being built. The city passed a moratorium on data center development in response to the project and filed a request to intervene in its FERC case this week. “The City's concerns include potential effects on fisheries, marine habitat, water quality, currents, sediment, underwater noise, electromagnetic fields, equipment heat, existing uses of the waterway, and access to marine resources,” the city stated. “Questions also remain about equipment failure, storm damage, emergency response, equipment recovery, site restoration, and eventual decommissioning. These concerns are specific to the proposed placement and extended operation of computing and energy infrastructure on and beneath the seabed.”
In Alaska, DeepGreen doesn’t face a situation like Eastport with a bustling tourist destination-turned-nemesis, but there’s still quite a bit of local confusion and consternation.
The Kenai Peninsula Borough, which is the equivalent of a county-level government, is currently neutral on the development. But the Alaska Commercial Fisheries Conservation Alliance, a newly-formed nonprofit that includes fishing permit holders in the Cook Inlet, submitted a filing to FERC claiming the project site doesn’t properly take into account existing fishing permit holders and that “a preliminary permit proceeding that advances a project of this scale without any commercial fishing impact assessment” would fail the agency’s public interest obligations.
I asked DeepGreen if it had any comment on the litigation risk around their projects. This is what Louis Wolfson provided: “Preliminary permits under the Federal Power Act do not authorize construction or physical disturbance. Their sole purpose is to establish priority while environmental, bathymetric, and technical feasibility studies are conducted. Stakeholder participation is an expected and healthy part of the FERC regulatory process. DeepGreen welcomes the engagement of conservation organizations, local communities, and regulatory resource agencies as we evaluate whether these sites can deliver low impact, zero carbon infrastructure in full compliance with federal environmental laws."
And more of the week’s biggest fights around project development
1. Ottawa County, Michigan – A congressional district House Democrats are targeting for control of the Lower Chamber is now a battleground over solar development on farmland, and I’m waiting to see if President Trump gets involved.
2. Texas – The Lone Star State sure is action-packed right now, huh? Let’s break down a few of the most important fights.
3. Lincoln County, Oklahoma – A massive wind project in rural Oklahoma is now on hold amidst continued local opposition, according to a Republican member of the state legislature.
4. Clinton County, Indiana – Well hey, at least some places are still approving some things. Like in rural Indiana, where a community actually voted for considering a data center.