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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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New York, New Jersey, and Pennsylvania advance a flurry of new ideas to manage the boom.
We know a little bit more about New York’s AI data center moratorium than we did yesterday. Here’s what stands out to me:
Governor Kathy Hochul says this won’t become a ban. “I’m not expecting the need for a ban. I want [the AI companies] to work with us,” she told Bloomberg’s “Odd Lots” podcast. “I understand how important AI is.”
The moratorium isn’t enough for some left-wing groups. As I wrote on Tuesday, Hochul’s order allowed her to avoid signing a more stringent moratorium that included wage requirements and renewable energy mandates for a much wider scope of projects. Kristen Gonzalez, a democratic socialist and a cosponsor of that bill, hailed Hochul anyway for “protecting everyday New Yorkers with a first in the nation moratorium on new large data centers.”
Some New York City progressive groups, while endorsing that more restrictive bill, suggested that she should have gone much further. The New York City chapter of the Sunrise Movement and other left-wing organizations, for instance, posted an Instagram carousel that said: “The dream isn’t better data centers. The dream is no data centers at all.”
New York is also exploring a grid acceleration fund. The governor’s order hints that a few policies should be in place by the time the moratorium ends. These include a new rule that data centers either bring their own power or “pay their fair share” for electricity, and a new state program to help local governments negotiate for community benefits with developers.
But it also opens the door for requiring projects to pay into a grid modernization fund. Such a fund could finance upgrades, set up new virtual power plants, or pay for new sources of zero-carbon energy, the order says. That idea — which resembles proposals from the Searchlight Institute and Groundwork Collaborative — suggests that the state is exploring ways to harness the AI boom for the public. “We want to make sure [data center developers] are investing in the grid,” Hochul said on Tuesday, “but they’re not being asked.”
Which brings me to my larger point. We’re seeing an efflorescence of interesting policymaking on data centers from Democratic governors and state legislators. New York has now enacted this moratorium, of course. Pennsylvania, a true national epicenter of data center construction, has passed new disclosure requirements, and Governor Josh Shapiro has pushed for serious reforms in the country’s largest electricity market.
In New Jersey — where surging power prices were central to last year’s gubernatorial election — the data center buildout has already produced a flurry of new laws. In its most recent session, the state legislature pared back tax incentives for data centers, required utilities to offer a rate for large electricity users, and required data center operators to publish water and energy data. It also set up a novel program that will let data centers pay to reduce electricity demand elsewhere on the grid, such as by setting up virtual power plants (or paying those who participate in them).
It’s been exciting to see different states — and, to be blunt, to see Democratic-governed states, particularly those in the Northeast and Mid-Atlantic — try to take on the data center boom. It’s good to see them test out ideas, solve problems through legislation, and harness this moment for the public good without strangling the buildout entirely. For too long, blue states have leaned into a particular economic model, one in which states want to attract varying forms of development but in fact succeed only in creating new suburbs, office buildings, and warehouses.
Soon after Democrats passed the Inflation Reduction Act, observers noticed that the law’s fruits — and notably its manufacturing investments — were sprouting in red or purple states, particularly in the Southeast and Sun Belt. The so-called Battery Belt bloomed in the Mid-South, for instance, not the Rust Belt. As I discussed with the political scientist Alexander Gazmararian on Heatmap’s podcast Shift Key, that was often due (counterintuitively, I think, for liberals) to a failure of governance: It is GOP-governed states that have the local expertise, institutional capacity, and political muscle memory to attract big new economic development projects.
If Democrats want to see their states do big things — build new housing and transit, decarbonize their power grids, or give birth to new industries — then they will need to develop the same kind of capability. That’s why I’ve so relished seeing blue states reckon with the data center boom. It should be encouraging that New Jersey policymakers, for instance, have to figure out how to manage a new and fast-growing industry on the technological frontier. Even questions that may seem troublesome right now — around land use, for instance, or how to relieve a congested power grid — will likely lead to policies that improve the state.
This kind of policymaking helps the Democratic Party, too. After all, the party’s future national leaders — its members of Congress, cabinet secretaries, and even presidents — are currently serving at the state and local level. The data center boom’s lessons — for good and ill — will resound among the party’s leadership for a long time.
Can she appease AI skeptics, economic development advocates, and renewables boosters?
New York Governor Kathy Hochul tried to pick out a middle way with her data center moratorium, carefully charting a course between the demands of industry, advocacy groups, and voters who are increasingly suspicious of the data center and artificial intelligence industries. Did she succeed? Only time will tell.
Hochul’s first-in-the-nation permitting pause has been hailed by data center opponents who want to re-orient American politics around the artificial intelligence backlash and lamented by the technology sector and its allies, including several in the Trump administration. President Donald Trump himself wrote on Truth Social, “New York State has made a terrible decision.” adding that the “Radical Left Dumocrats must not be allowed to cause us to lose Data Centers, AI, and all of this incredible new Technology, to China.”
Before we discuss what Hochul did, we must first discuss what she didn’t do.
What Hochul’s moratorium is not is her signature on the Responsible Data Center Development Act, a data center moratorium that passed both houses of the state legislature in June. That moratorium had a lower energy use threshold for the moratorium: 20 megawatts, compared to Hochul’s 50 megawatts.
One of that bill’s sponsors, democratic socialist Kristen Gonzalez, appeared alongside Hochul when she signed the executive order Tuesday and hailed the governor for “protecting everyday New Yorkers with a first in the nation moratorium on new large data centers.” When asked about this discrepancy by reporters, Hochul said that “we want to make sure we didn’t touch the data centers that are powering hospitals and schools and research centers,” and specifically mentioned data centers used by “bank back-office operations.”
Protecting bank back-office operations is not typically top of mind for democratic socialists. Gonzalez’s office did not respond to a request for comment.
The goal of the moratorium, Hochul said, is to develop a process for data centers to pay their way in terms of grid costs and electricity rates.
“We expect this process, which we already launched, to be completed within the year,” she said. “Once this policy’s in place, the moratorium will be reviewed and lifted.”
What is still unclear is how this moratorium interacts with renewables development, especially upstate where there is enough open space for both wind and solar power as well as large data centers.
While the New York governor has pulled back on the state’s climate goals as renewable energy and transmission has come under the dual assault of the Trump administration and rising costs, Hochul has made a point of promoting clean power development across the state, especially nuclear and hydropower, which can be built and maintained close to her western New York home base.
A New York data center industry could — emphasis on could — be a major customer for renewable power in the state, especially as there’s little prospect of large-scale new natural gas development.
During her speech announcing the moratorium, Hochul emphasized that “we’ve invested so much in other forms of power to meet the current needs of New Yorkers and our businesses,” and that “New York will require data centers to either produce their own energy or pay a premium to tap into our grid.”
The executive order itself lays out a process whereby, once the moratorium is lifted, new data centers may be required “to fund new clean electric generation and/or battery storage dedicated to their operations, consistent with the State’s clean energy goals, including customer-sited distributed energy resources, to the greatest extent feasible.”
When discussing her energy and economic policies on Bloomberg’s “Odd Lots” podcast this week, Hochul connected her data center moratorium with economic development efforts, especially upstate, where large data centers are more likely to be sited.
Referring to Micron’s $100 billion Syracuse-area semiconductor manufacturing project, Hochul told hosts Joe Weisenthal and Tracy Alloway, “I’ll work with you to get the power you need.” (The state approved a transmission line for the project last year.)
“If I have to choose between powering a largely vacant data center with the same amount of power I can have with a Micron with 1,000 jobs, I can tell you right now where I’m going,” Hochul said. “They can come under the conditions we lay out.”
But it may be just as likely data center developers take the hint and avoid a state with expensive power and high costs of doing business in the best of times.
“I don’t think we know yet how this will impact what’s known as behind-the-meter or off-the-grid power solutions: natural gas, cogeneration, solar, wind, battery storage,” Jeffrey Moerdler, a partner at the law firm Haynes Boone who chairs the data center practice, told me. “I assume it will hold up data centers powered by alternative energy sources.”
As for whether Hochul can successfully keep the one-year moratorium a year (temporary policies have a tendency to become permanent), develop new rules to address her concerns about grid costs and local opposition, and then have data centers line up to get back into New York, Moerdler was skeptical.
“It’s going to take years to make up for that shift” against data center development, he told me, predicting that the moratorium could lead to “many years of new data centers not locating here because they already started during that one-year period somewhere else.”
Something else that must be noted in all of this: “New York is not a high priority location for data centers.” Whether the state’s governor wants it to be remains to be seen.
Where is the smoke worst, where will it go next, and what causes that color?
Before wildfire smoke turns the skies to a jaundiced yellow-gray, it might look almost pretty. Midday light grows diffuse, taking on a crepuscular golden hue. Shadows soften and stretch long. The sunsets are particularly incredible: radiant, neon red.
But as with oleander and poison dart frogs, beautiful things are often the most dangerous. The same wildfire particulates that scatter the light will, once dense enough, turn the air around you orange, then black. They will get into your lungs — slipping past your nose hairs and mucus, the body’s defenses that stop larger particulates — and provoke your immune system into an attack. The tiny air sacs at the ends of the bronchioles in your lungs, where the gas exchange of “breathing” actually happens, will become inflamed. You will become short of breath. You will cough. The smallest smoke particulates may even enter your bloodstream.
And if you are like 24,000 other Americans every year, this will kill you.
Though wildfire smoke exposure might seem to be more of a nuisance to a healthy person than anything else, experts agree it should be taken seriously. “In my profession, wildland firefighting, you make a decision that you run into that,” Nicholai Allen, a firefighter and founder of Safe Soss, a home-hardening product line, told me. “But for my family and my children, I don’t want them breathing in the smoke that’s traveling that far. We have air purifiers, and we’re taking similar precautions.”
On Wednesday, more than 100 million people in the Midwest and Northeast face unhealthy smoke conditions from fires burning up to 2,000 miles away. Here’s what you need to know.
The smoke is largely coming from 150 or so lightning-ignited fires in Ontario and northeastern Minnesota. Triple-digit temperatures, dry conditions, and high winds have fanned a “wall of fire” across the region, as the firefighting newsletter The Hotshot Wakeup put it, even as Canada is, on the whole, tracking behind its five-year average for area burned so far. Most of the fires sending smoke to the U.S. this week are still out of control and spreading rapidly.

A high-pressure area over the central U.S. and a low-pressure area over Eastern Canada are acting as a funnel, pulling bad air east across the Great Lakes region and into the populous Acela Corridor. Conditions are worst closest to the fires: Around 8 a.m. on Wednesday morning, Duluth, Minnesota had a “hazardous” air quality rating of 785 out of 800. By the afternoon, Toronto had the worst air quality of any major city in the world, and drivers in northern Michigan have been advised to slow down and turn on their low-beam headlights because visibility has been so reduced by the smoke. The eastern-moving plume has also blanketed large portions of Upstate New York.
Degraded air quality reached the Boston and New York City areas on Tuesday night and is expected to linger through Thursday. The smoke reaches as far north as Maine, having dimmed the morning light in New Hampshire, and could spread as far south as Washington, D.C. over the next 24 hours.
Though the smoke is staying largely to the north over the middle part of the country, forecasts show it could dip into downtown Chicago on Thursday as well.
Wednesday and early Thursday will be the worst days for the eastern U.S., per the current outlook. A cold front should help push the worst of the smoke out of the region as we head into the weekend.
So far it appears that much of the smoke has remained high enough in the atmosphere that while you’ll be able to see and likely smell it, it might not cause extreme air quality problems on the ground. As of Wednesday afternoon, New York City was recording some of the worst air on the East Coast, with an air quality index of around 160 — bad enough to trigger an “unhealthy” alert for the general public and to rank fifth-worst among major cities worldwide. The rest of the region still mostly showed orange readings designed to alert sensitive groups such as older adults, people with respiratory conditions, and pregnant women, or more moderate yellow ratings.
Conditions could still change, though. Heat, pressure, and winds can drive smoke down to ground level, where it becomes a threat to public health. In fact, the Fox Forecast Center’s models indicate that particulate matter concentrations around the Great Lakes and Northeast could be on par with the 2023 East Coast smoke event, during which New York had the world’s worst air quality, although The New York Times reports that “even the most severe forecasts” this week should not approach that level.
The best thing to do is to continue monitoring your local air quality. If you want help navigating what those readings mean, my colleague Emily Pontecorvo has written a great explainer.
For many on the East Coast, the orange skies are a flashback to the 2023 smoke event. While eerie and apocalyptic, the smoke also gives us an excuse to talk about Mie theory.
Air molecules are much smaller than the wavelength of light. When white light from the sun enters the atmosphere, nitrogen and oxygen scatter the short, higher-frequency blue light in multiple directions. This is known as Rayleigh scattering, and is also the answer to, “Why is the sky blue?” Under normal conditions, wherever you look in the sky, blue light is headed toward your eye.
Smoke particles, while small enough to enter our lungs when inhaled, are larger than air molecules — about the same size as light wavelengths. Because these particles are larger, they also scatter light more democratically, including the lower-frequency, longer reds and oranges. This is called Mie scattering. When sunlight passes through smoke, the reds, oranges, yellows, and blues are all mixed together as they reach our eyes, appearing as a hazy gray or white.
You might expect thicker smoke to result in a darker gray, then. But smoke also contains organic compounds from burned plants called brown carbon, plus soot, both of which absorb visible light. Brown carbon, in particular, prefers light at the shorter end of the spectrum, absorbing about three-quarters of the total light at blue wavelengths in smoke plumes, compared to about half at red wavelengths. That means that when the smoke thickens, the blue light doesn’t reach our eyes nearly as well, and the sky takes on an orange appearance.
One of the dangers of the current smoke event is that it coincides with high temperatures across the Central U.S. and New England. Both conditions together — high heat and smoke — can lead to some confusion over how to respond.
The best strategy is to keep your windows closed. But while it might feel safe side, wildfire smoke can still degrade indoor air quality. “If you have a fresh air intake on your air conditioning system, I would shut that off so that you’re recirculating just your purified air inside your house,” Allen, the firefighter, told me.
You can also install activated carbon exterior filters on attic and crawl space vents and run a purifier with a HEPA filter. (If you bought an air purifier during the last smoke event, consider this your reminder to replace your filter.) “Then I would avoid going outside or exercising outside if there’s smoke in the air,” Allen added. “When the particles are arriving to you from a great distance from the wildfire, they are the smaller particles that can get in your lungs. So not to create undue fear, but there’s definitely stuff in that air that you don’t want to breathe.”