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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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America’s largest renewable developer is swallowing up the utility at the heart of the data center boom.
NextEra Energy, which also owns the utility Florida Power & Light, announced Monday morning that it had agreed to acquire Dominion Energy, the utility that operates in Virginia and the Carolinas. The deal would create an energy giant valued at around $67 billion. It would also — importantly for Virginia and PJM Interconnection, the 13-state electricity market of which the state is a part — create a battery electric storage giant.
The companies said in a Monday presentation laying out the case for the merger to investors that the combined entity would be the largest power company in the United States and the third largest energy company behind just ExxonMobil and Chevron. The companies projected that, when combined, they would be the domestic leader in total generation, market capitalization, rate base, annual capital expenditure, total generation built, and, specifically, battery storage capacity.
NextEra is already a storage leader. Its Florida utility is planning to add 7.6 gigawatts of battery storage over the next decade, and its development arm added almost a gigawatt of storage to its backlog in just the first quarter of this year.
NextEra’s storage expertise couldn’t come at a better time for Dominion. Virginia passed a law in April mandating that the utility procure 16 gigawatts of short-duration storage and 4 gigawatts of long-duration storage by 2045, with 4 gigawatts of short-term storage coming by 2030. Compare that to a previous state target for Dominion of around 3 gigawatts of storage 2035 and the challenge becomes apparent.
“With NextEra Energy’s world leadership in battery storage, there’s a potential to accelerate Dominion Energy’s capital plan to meet Virginia’s storage goals,” NextEra Chief Executive John Ketchum said on a call with analysts discussing the merger plans.
The market Dominion operates in in Virginia, PJM Interconnection, has long been a laggard in bringing new storage resources onto its grid, thanks to its famously dysfunctional interconnection queue. Although its newly refreshed queue has seen a large increase in storage projects compared to when the organization closed it to new projects in 2022, the market is still well behind storage-friendly peers like California and Texas.
PJM has also become notorious more recently for its capacity market, which has fueled price increases across the region in the billions of dollars, and yet failed to procure the reserve margin PJM typically aims for in its most recent auction. “Given that we’re the world’s leader in battery storage and the legislation that was just passed by Virginia, there is a tremendous opportunity to meet that capacity short quickly by deploying battery storage in the right places,” Ketchum said Monday. “We know what a big impact battery storage can have, and how quickly it can have it on capacity-short positions. And so we look at a Dominion in Virginia with [a] short capacity position — I think there’s a real opportunity to accelerate investment.”
The proposed deal comes at a time of rising prices and public anger at utilities up and down the Eastern Seaboard, and especially in the Mid-Atlantic. Dominion’s rates in Virginia have risen around 36% in the past four years, according to the Heatmap-M.I.T. Electricity Price Hub, while typical bills have risen from about $96 per month to $146 per month. Virginia’s rates have grown faster than average in PJM, but are still well below the increases in states like Maryland and New Jersey despite serving a fast-growing data center industry.
While elected Democrats in PJM states regularly bash utilities (see: New Jersey and Pennsylvania), it’s possible that both Virginians and Virginia might look favorably on NextEra, Jefferies analyst Julien Dumoulin-Smith wrote in a note to clients Monday. “If [NextEra] focuses on storage development under the new Democratic legislation recently passed, it could form a coalition of support; we believe this is [a] critical point that could make the deal approval process less bumpy than some other recent M&A deals.”
Morningstar analyst Andrew Bischof saw the deal as allowing each side to use the other’s expertise (and balance sheet) to ramp up investment. Dominion might be able “leverage NextEra’s strong balance sheet to accelerate investment, particularly in Virginia,” whereas NextEra “could accelerate its data center ambitions, which had trailed those of its regulated peers, by using Dominion’s expertise and relationships to expedite NextEra’s data center hub plans,” he wrote in a note to clients Monday.
Building out more storage could also be great for a regulated utility like Dominion, as it would get to put new resources into its rate base and garner a return on equity.
“The General Assembly just added new storage requirements for us, which we think are going to be great for our customers, being able to work with Nextera and this combined company on that,” Dominion chief executive Robert Blue said on the call. “I think this is really going to benefit our customers as we serve them better and will deploy capital faster that way.”
On Thacker Pass, the Bonneville Power Administration, and Azerbaijan’s offshore wind
Current conditions: New York City is bracing for triple-digit heat in some parts of the five boroughs this week • The warm-up along the East Coast could worsen the drought parching the country’s southeastern shores • After Sunday reached 95 degrees Fahrenheit in the war-ravaged Gaza, temperatures in the Palestinian enclave are dropping back into the 80s and 70s all week.
Assuming world peace is something you find aspirational, here’s the good news: By all accounts, President Donald Trump’s two-day summit in Beijing with Chinese President Xi Jinping went well. Here’s the bad news: The energy crisis triggered by the Iran War is entering a grim new phase. Nearly 80 countries have now instituted emergency measures as the world braces for slow but long-predicted reverberations of the most severe oil shock in modern history. With demand for air conditioning and summer vacations poised to begin in the northern hemisphere’s summer, already-strained global supplies of crude oil, gasoline, diesel, and jet fuel will grow scarcer as the United States and Iran mutually blockade the Strait of Hormuz and halt virtually all tanker shipments from each other’s allies. “We are taking that outcome very seriously,” Paul Diggle, the chief economist at fund manager Aberdeen, told the Financial Times, noting that his team was now considering scenarios where Brent crude shoots up to $180 a barrel from $109 a barrel today. “We are living on borrowed time.”
The weekend brought a grave new energy concern over the conflict’s kinetic warfare. On Sunday, the United Arab Emirates condemned a drone strike it referred to as a “treacherous terrorist attack” that caused a fire near Abu Dhabi’s Barakah nuclear station. The UAE’s top English-language newspaper, The National, noted that the government’s official statement did not blame Iran explicitly. The attack came just a day after the International Atomic Energy Agency raised the alarm over drone strikes near nuclear plants after a swarm of more than 160 drones hovered near key stations in Ukraine last week.
We are apparently now entering the megamerger phase of the new electricity supercycle. On Friday, the Financial Times broke news that NextEra Energy is in talks with rival Dominion Energy for a tie-up that would create a more than $400 billion utility behemoth in one of the biggest deals of all time. The merger talks, which The Wall Street Journal confirmed, could be announced as early as this week. The combined company would reach from Dominion’s homebase of Virginia, where the northern half of the state is serving as what the FT called “the heartland of U.S. digital infrastructure serving the AI boom,” down to NextEra’s home-state of Florida, where the subsidiary Florida Power & Light serves roughly 6 million customers. While Dominion dominates data centers in Northern Virginia, NextEra last year partnered with Google to build more power plants and even reopen the Duane Arnold nuclear station in Iowa.

Trump digs lithium. In fact, he’s such a fan of Lithium Americas’ plan to build North America’s largest lithium mine on federal land in Nevada that he renegotiated a Biden-era deal to finance construction of the Thacker Pass project to secure a 5% equity stake in the publicly-traded developer. Yet the White House’s macroeconomic policies are pinching the nation’s lithium champion. During its first-quarter earnings call with investors last week, Lithium Americas cautioned that the Trump administration’s steel tariffs, coupled with inflation from disrupted shipments through the Strait of Hormuz, could add between $80 million and $120 million to construction costs at Thacker Pass. Most of the impact, Mining.com noted, is expected this year. Once mining begins, the project could spur new discussion of a strategic lithium reserve, the case for which Heatmap’s Matthew Zeitlin articulated here.
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The Department of Energy has selected Travis Kavulla, an energy industry veteran, as the 17th chief executive and administrator of the Bonneville Power Administration, NewsData reported. Founded under then-President Franklin D. Roosevelt in 1937, the federal agency is a holdover from the New Deal era before utilities had built out electrical networks in rural parts of the U.S. Unlike the Tennessee Valley Authority — which functions as a standalone utility that owns and sells power, though it’s wholly owned by the federal government and its board of directors is appointed by the White House — the BPA, as it’s known, is a power marketing agency that sells electricity from hydroelectric dams owned by the Army Corps of Engineers and the Department of the Interior’s Bureau of Reclamation. Kavulla currently serves as the head of policy for Base Power, the startup building a network of distributed batteries to back up the grid. He previously worked as the regulatory chief at the utility NRG Energy, and as a state utility commissioner in his home state of Montana. NewsData, a trade publication focused on Western energy markets, cautioned that the Energy Department may hold off on announcing the appointment for “the next few days or weeks” as sources warned that “it might be delayed while the department conducts a background check, or to allow the new undersecretary of energy, Kyle Haustveit, to be confirmed.”
Reached Sunday night via LinkedIn message, Kavulla politely declined to comment on whether he was appointed to lead the BPA.
Offshore wind may be spinning in reverse in the U.S. as the Trump administration attempts to, as Heatmap’s Jael Holzman put it, “murder” an industry through death by a thousand cuts. But elsewhere in the world, offshore wind is booming. Just look at Azerbaijan. Despite its vast reserves of natural gas, the nation on the Caspian Sea is looking into building its first offshore turbines. On Friday, offshoreWIND.biz reported that the Azerbaijan Green Energy Company, owned by the Baku-based industrial giant Nobel Energy, had commissioned a Spanish company to design a floating LiDAR-equipped buoy for the country’s first turbines in the Caspian. The debut project, backed by the Azeri government, would start with 200 megawatts of offshore wind and eventually triple in size.
Before the wealthy software entrepreneur Greg Gianforte ran to be governor of Montana, he donated millions of dollars to a Christian-themed museum that claims humans walked alongside dinosaurs and the Earth is just 6,000 years old. After winning the state’s top job, the Republican set about revoking virtually all policies related to climate change, including banning the projected effects of warming from state agencies’ risk forecasts. With drought withering the state, however, Gianforte has turned to perhaps the most ancient policy approach humanities leaders have called upon to fix devastating weather patterns: Pray. On Sunday, Gianforte declared an official day of prayer for rain. “Prayer is the most powerful tool we have,” he wrote in a post on X. “I ask all who are faithful to come to God with thanks and pray.”
With construction deadlines approaching, developers still aren’t sure how to comply with the new rules.
Certainty, certainty, certainty — three things that are of paramount importance for anyone making an investment decision. There’s little of it to be found in the renewable energy business these days.
The main vectors of uncertainty are obvious enough — whipsawing trade policy, protean administrative hostility toward wind, a long-awaited summit with China that appears to have done nothing to resolve the war with Iran. But there’s still one big “known unknown” — rules governing how companies are allowed to interact with “prohibited foreign entities,” which remain unwritten nearly a year after the One Big Beautiful Bill Act slapped them on just about every remaining clean energy tax credit.
The list of countries that qualify as “foreign entities of concern” is short, including Russian, Iran, North Korea, and China. Post-OBBBA, a firm may be treated as a “foreign-influenced entity” if at least 15% of its debt is issued by one of these countries — though in reality, China is the only one that matters. This rule also kicks in when there’s foreign entity authority to appoint executive officers, 25% or greater ownership by a single entity or a combined ownership of at least 40%.
Any company that wants to claim a clean energy tax credit must comply with the FEOC rules. How to calculate those percentages, however, the Trump administration has so far failed to say. This is tricky because clean energy projects seeking tax credits must be placed in service by the end of 2027 or start construction by July 4 of this year, which doesn’t leave them much time left to align themselves with the new rules.
While the Treasury Department published preliminary guidance in February, it largely covered “material assistance,” the system for determining how much of the cost of the project comes from inputs that are linked to those four nations (again, this is really about China). That still leaves the issue of foreign influence and “effective control,” i.e. who is allowed to own or invest in a project and what that means.
This has meant a lot of work for tax lawyers, Heather Cooper, a partner at McDermott Will & Schulte, told me on Friday.
“The FEOC ownership rules are an all or nothing proposition,” she said. “You have to satisfy these rules. It’s not optional. It’s not a matter of you lose some of the credits, but you keep others. There’s no remedy or anything. This is all or nothing.”
That uncertainty has had a chilling effect on the market. In February, Bloomberg reported that Morgan Stanley and JPMorgan had frozen some of their renewables financing work because of uncertainty around these rules, though Cooper told me the market has since thawed somewhat.
“More parties are getting comfortable enough that there are reasonable interpretations of these rules that they can move forward,” she said. “The reality is that, for folks in this industry — not just developers, but investors, tax insurers, and others — their business mandate is they need to be doing these projects.”
Some of the most frequent complaints from advisors and trade groups come around just how deep into a project’s investors you have to look to find undue foreign ownership or investment.
This gets complicated when it comes to the structures involved with clean energy projects that claim tax credits. They often combine developers (who have their own investors), outside investment funds, banks, and large companies that buy the tax credits on the transferability market.
These companies — especially the banks, which fund themselves with debt — “don’t know on any particular date how much of their debt is held by Chinese connected lenders, and therefore they’re not sure how the rules apply, and that’s caused a couple of banks to pull out of the tax equity market,” David Burton, a partner at Norton Rose Fulbright, told me. “It seems pretty crazy that a large international bank that has its debt trading is going to be a specified foreign entity because on some date, a Chinese party decided to take a large position in its debt.”
For those still participating in the market, the lack of guidance on debt and equity provisions has meant that lawyers are having to ascend the ladder of entities involved in a project, from private equity firms who aren’t typically used to disclosing their limited partners to developers, banks, and public companies that buy the tax credits.
“We’re having to go to private equity funds and say, hey, how many of your LPs are Chinese?” David Burton, a partner at Norton Rose Fulbright, told me. This is not information these funds are typically particularly eager to share. If a lawyer “had asked a private equity firm please tell us about your LPs, before One Big Beautiful Bill, they probably would have told us to go jump in the lake,” Burton said.
Still, the deals are still happening, but “the legal fees are more expensive. The underwriting and due diligence time is longer, there are more headaches,” he told me.
Typically these deals involve joint ventures that formed for that specific deal, which can then transfer the tax credits to another entity with more tax liability to offset. The joint venture might be majority owned by a public company, with a large minority position held by a private equity fund, Burton said.
For the public company, Burton said, his team has to ask “Are any of your shareholders large enough that they have to be disclosed to the SEC? Are any of those Chinese?” For the private equity fund, they have to ask where its investors are residents and what countries they’re citizens of. While private equity funds can be “relatively cooperative,” the process is still a “headache.”
“It took time to figure out how to write these certifications and get me comfortable with the certification, my client comfortable with it, the private equity firm comfortable with it, the tax credit buyer comfortable with it,” he told me, referring to the written legal explanation for how companies involved are complying with what their lawyers think the tax rules are.
Players such as the American Council on Renewable Energy hope that guidance will cut down on this certification time by limiting the universe of entities that will have to scrub their rolls of Chinese investors or corporate officers.
“It’d be nice if we knew you only have to apply the test at the entity that’s considered the tax owner of the project,” i.e. just the joint venture that’s formed for a specific project, Cooper told me.
“There’s a pretty reasonable and plain reading of the statute that limits the term ’taxpayer’ to the entity that owns the project when it’s placed in service,” Cooper said.
Many in the industry expect more guidance on the rules by the end of year, though as Burton noted, “this Treasury is hard to predict.”
In the meantime, expect even more work for tax lawyers.
“We’re used to December being super busy,” Burton said. “But it now feels like every month since the One Big Beautiful Bill passed is like December, so we’ve had, like, you know, eight Decembers in a row.”