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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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Three climate stories that caught my eye today.
It’s been a busy few days for climate and energy news. So instead of focusing on a single story in this edition, let’s try something different and check in with a few big ones I’ve been thinking about:
Wednesday was the hottest day ever recorded in France, according to the country’s weather agency, Météo-France. The commune of Palluau, not so far from the country’s Atlantic coast, recorded a high of 43.8 degrees Celsius, or 110 degrees Fahrenheit.
The United Kingdom also set a new June temperature record. Spanish officials have suggested that the heat wave may have killed as many as 212 in their country alone. Germany, Austria, Italy, and the rest of central Europe also face searing weather.
I was particularly struck that many cities in France and Germany recorded their warmest night ever. A town in Rhineland-Palatinate, for instance, saw overnight temperatures remain above 79 degrees Fahrenheit earlier this week.
Although that might not sound so bad to American ears, it is alarming in a country where most homes do not have air conditioning. Heat waves are the deadliest type of weather event on an annual basis, but they are slow and silent killers: They prove fatal when temperatures stay high for hours, or days, at a time, and the body’s natural cooling mechanisms give out. The human body can withstand a hot day or two; it can’t hold out a hot day, a hot night, another hot day, another hot night, ad nauseam.
And let’s clearly say, too: This is climate change. As my colleague Jeva Lange wrote in 2024, record-breaking heat is the clearest symptom of anthropogenic global warming caused by carbon emissions — and therefore fossil fuels. Preventing disasters like this one is why Europe, the fastest-warming continent, has invested so much in decarbonization and net zero.
(But I suspect that in the coming years, it will invest more in air conditioning, too.)
Once a quarter, the Federal Reserve Bank of Dallas surveys oil and gas executives on how they're feeling about the sector. Their anonymous comments, collected at the report’s end, periodically make news — last year, you might recall, respondents were less than thrilled with the president’s policies — but I was struck by a comment in the most recent survey, which came out yesterday.
“The collision of AI development with local community activists rhymes with the early response to fracking,” one unnamed drilling executive said. “It's unclear how competitive we can be in the AI arms race unless we temper the rights given to NIMBYists (not in my backyard) and the legal maneuvers they use to stop progress.”
Now, look: Oil and gas executives care about the boom in part because data centers are major energy consumers. But this comment stood out because it uses the same historical analogy I’ve been meditating on. If you think back to the early 2010s, I’ve said, fracking was new and worrying to many people. But over the course of the decade it became politically polarized, with red states and some purple states embracing it and many blue states backing off of or banning it.
That’s been my framework. So I was shocked to see that J. Stuart Adams, the president of Utah’s state senate, lost his primary to a fellow Republican challenger this week. The campaign was driven by Adams’ approval of a massive data center partly owned by the “Shark Tank” celebrity investor Kevin O’Leary, known as Mr. Wonderful. The 40,000-acre data center — which could consume up to 9 gigawatts, a New-York-City-on-a-warm-spring-day’s amount of power — has proven to be enormously unpopular in Utah, and Adams ultimately demanded O’Leary shrink the project. But that didn’t pacify Republican primary voters, who have now booted Adams from a 20-year career in state politics.
Why does this matter? Because that’s not very fracking-like at all. In the 2010s, state and local Republican leaders may have faced tough battles over pipelines or eminent domain, but their voters did not broadly reject oil and gas development the way they seem to be doing for data centers now. (As our polling at Heatmap shows, the facilities are now deeply unpopular even among GOP voters.) This suggests data centers may be closer to what, say, urban housing projects or nuclear power plants once were to the American electorate — a type of highly controversial economic development that local politicians must either “own” or “fight,” and which, regardless, they see as existential for their careers.
And that in turn suggests a very different future for data centers — and a very different electricity load growth forecast — may be coming.
One last thing, and it's short. Like all middle-aged millennials, I pine for the return of cheap, useful pickup trucks like the old Ford Ranger or Toyota Tacoma. And like all millennial climate journalists, I wish electric vehicles were cheaper.
So I was delighted to see the news that the U.S. startup Slate has somehow managed to build a $25,000 two-seater pickup EV. It says it will start delivering them by the end of this year. Read Heatmap’s new piece by Andrew Moseman to learn how they did it.
Today’s top-of-the-line electric vehicles are self-driving computers on wheels built to feel as futuristic and digital as possible. They come with artificial intelligence-powered assistants, enormous touchscreen interfaces, and huge batteries.
The Slate pickup truck’s signature feature? Hand-crank windows.
As Slate Auto has developed its attempt at the bare-bones EV over the past couple of years, its 1990s-nostalgic manual windows became a symbolic choice, one meant to signal just how far it was willing to go in pursuit of affordability. On Wednesday, Slate gave us a fuller picture, revealing the details about its vehicle and providing a glimpse at how the Jeff Bezos-backed startup plans to sell an EV truck at an entry-level price. But while the pickup’s lack of power windows or a built-in stereo system are attention-grabbers, a lot of the savings lie under the skin.
Just how cheap is it? The “Blank Slate,” a version of the truck with zero bells and whistles, starts a hair under $25,000. This is a compact truck in the spirit of decades past, with two seats up front and nothing more. For a Slate that seats more than a couple, choose the SUV or fastback configuration that bumps up the price to about $30,000 or $32,000, respectively.

From there, Slate’s à la carte model takes over. Choosing a wrap to make your whole truck a color other than gray costs $499, though blessedly, Slate provides dozens of color choices as opposed to the handful of neutrals and muted colors offered on a typical new car. The portal to design one’s Slate becomes a rabbit hole of possible choices — custom taillight designs, roof racks, and wheels — all of which add a little or a lot to the price of the truck. These add-ons can quickly propel a Slate deep into the mid- or even high-$30,000s range if you’re not careful. The point, though, is that the $25,000 EV is front and center.
To achieve this starting price required a heavy dose of vintage or simplified tech. Roll-down windows and no built-in stereo speak to drivers who aren’t automotive engineering experts. But as reviewers and online commenters have noted, crank windows aren’t a make-or-break money-saver — they might knock off $20 or $40 per vehicle — and so few companies use them now that Slate had to go out of its way to source them from Brazil.

A bigger cost-cutter was Slate’s embrace of old-school manufacturing and its willingness to consider “yestertech” that’s still perfectly serviceable, but has fallen out of use because better systems have come along. The chassis, for example, is made of ordinary steel — 250 pieces welded together as opposed to the more efficient stamping methods that have taken over automotive manufacturing. While Slate has a familiar, inexpensive MacPherson suspension up front, its rear uses a design called the De Dion that dates back to the late 1800s. (The Autopian has a nice technical write-up about why this choice makes sense.)
We often default to calling EVs smartphones on wheels because of the Tesla approach to making them — the so-called software-defined vehicle that routes its main functions through touchscreen interfaces and gets new features via over-the-air updates. So perhaps a comparison to the phone industry is apt. In the same way budget-conscious buyers were waiting for Apple to make the “affordable iPhone,” drivers have been waiting for the automakers to roll out the entry-level EV. But instead of the cheap Tesla, what we got is the Slate, which is something more like a flip phone on wheels.
That’s not to say it won’t succeed. Flip phones are enjoying a resurgence, after all, powered by their low price and by growing dissatisfaction with life in this age of touchscreens. But Slate’s unusual position in the car industry makes it difficult to predict how American drivers will respond. For those shopping solely on price, Slate may not measure up. The cheapest gas-powered cars in America include the likes of the Toyota Corolla, Hyundai Elantra, and Volkswagen Jetta, and their starting price in the mid-$20,000s includes the basic creature comforts you’d expect from a modern car, not to mention seating for at least four. In a world that still had the $7,500 federal tax credit for buying an EV, the Slate would undercut these gas-burners. In this world, it can’t (though you could add a slew of options to the Slate before it would cost the same as the $35,000 electric truck under development at Ford’s skunkworks operation).

What Slate has going for it, though, is its ability to become the exact car you’d like. Normal cars come with three or four “trim levels,” each of which adds a thousand dollars or two in exchange for more features. In practice, many people are stuck with whatever version they can actually track down at a dealership. Slate follows the Tesla-Rivian model of direct-to-consumer sales, and its trademark customizability means buyers are limited to picking from two or three versions of a car, but can design every single piece of their truck.
To be sure, lots of people don’t want this. Many are presumably happier buying a car off the familiar lot without the mental overload of choosing every single thing about their vehicle. The question is whether a quorum of drivers are ready for a new way to buy a car — or at least, so fed up with fluctuating gas prices and the out-of-control prices of new vehicles that they’re ready to take a chance on rolling their windows again.
Current conditions: France just recorded its hottest day ever, with Wednesday’s temperatures soaring to just under 111 degrees Fahrenheit; nearly 50 people died drowning while seeking respite from the heat • A pair of 7.1-magnitude earthquakes struck Venezuela, collapsing buildings in Caracas • Wind has whipped the Cottonwood Fire, one of six wildfires raging in Utah, into a larger blaze now covering 60,000 acres — and it’s still at 0% containment.
New Jersey Representative Frank Pallone, the ranking Democrat on the House Energy and Commerce committee, joined calls for a national moratorium on data center construction ahead of Wednesday afternoon’s markup of a series of bills related to the buildout of infrastructure to support artificial intelligence software. In a statement, Pallone described the bills as a “useful first step,” but one that, “compared to the challenges the American power grid is facing,” amounts to “not nearly enough.” Rather, he backed a “national AI data center moratorium until we can find a way to ensure they don’t harm our nation’s air, water, and power bills.” Pallone’s new public position makes him one of the highest-ranking Democrats yet to back the idea, championed by the likes of Representative Alexandria Ocasio-Cortez, of halting permitting on new data centers in response to the growing blowback from voters.
Pallone’s shift comes in response to the Ratepayer Protection Act, which would enshrine into law the voluntary pledge tech companies signed with the White House to pay for grid costs from their server farms. Heatmap’s Matthew Zeitlin wrote earlier this week that the bill was “not so much an anti-artificial intelligence or anti-data center bill, but rather a move to insulate further data center development from political pressure stemming from rising electricity costs.” When Pallone made his statement a day later, Matthew wrote: “Well, at least one influential lawmaker seems to agree with me.”
The Iran War has cost the average American car owner an extra $156 and the average SUV driver another $232 in gasoline costs, according to new data from the policy shop Third Way. But the newly mapped analysis, shared exclusively with me, shows that Republican-leaning states in the Mountain West and beyond paid some of the highest prices for a conflict. Alaska saw one of the biggest spikes, with gas prices rising by $1.40 per gallon, a 39% increase. Wyoming followed close behind, with prices soaring by $1.37 per gallon, a 50% surge. Prices in Utah, meanwhile, climbed by $1.30, or 47%. That stands in contrast to many big Democratic-leaning states. New York’s gas prices rose by $1.23, or 41%, while California’s prices went up $0.94, or 20%. That, of course, doesn’t reflect where the prices were already high. I just returned this week from a trip to Los Angeles, where gas was nearly twice as expensive as in New York City.
Century Aluminum, America’s largest primary aluminum producer and the developer behind the first new U.S. smelter in 50 years, has inked a deal with a green cement startup to supply a key raw material. Brimstone, known as a major player in the race to commercialize green cement, also generates alumina. On Wednesday, the startup unveiled a memorandum of understanding with Century Aluminum to establish a domestic “mine to metal supply chain” for aluminum made from scratch rather than scrap. “Foreign sources, including China, currently dominate global alumina production. Brimstone is bringing alumina production home and doing it at a globally competitive price,” Brimstone CEO Cody Finke said in a press release. “Brimstone is upending the massive global imbalance by producing alumina from rock quarried here in the United States.”
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Until the nation’s flagship reactor project came online and transformed Southern Company’s Alvin W. Vogtle Generating Station in eastern Georgia into America’s most powerful atomic electrical plant, Arizona’s Palo Verde Generating Station was the No.1 nuclear facility by size in the country. The desert state is now looking to reclaim its mantle. The trio of utilities Arizona Public Service, Salt River Project, and Tucson Electric Power said Wednesday they are continuing “to work together to explore adding nuclear generation in Arizona.” The next step, the companies said, is a siting study that’s expected to be completed within the next six months. The Arizona Corporation Commission, the regulator in charge of utilities in the state, is holding an informational workshop today.
Meanwhile, the developer behind Canada’s flagship reactor design — which, because it’s cooled with pressurized heavy water, can run on raw uranium — just submitted initial paperwork to the Nuclear Regulatory Commission to start the licensing process to approve what’s known as the CANDU. Pronounced CAN-do and produced by manufacturer AtkinsRéalis, the reactor is the workhorse of the Canadian and Indian fleets and can be built reliably, but requires more maintenance than the light water reactors that run on enriched uranium and make up the entire U.S. fleet. “As the United States enters a new chapter in its civilian nuclear program, AtkinsRéalis is uniquely positioned, as the steward of CANDU technology, to help advance the country’s ambitious energy policy through proven, low-cost reactor technology with a world-class reputation,” Ian L. Edwards, the company’s president and chief executive, said in a statement. As I told you last month, the CANDU is at the heart of Canada’s new nuclear strategy.

The world needs a lot more copper. And while siting and building new mines takes time, two of the planet’s biggest producers are preparing to increase production at existing mines. On Wednesday, London-based Anglo American and the Chilean state-owned Codelco inked a deal to increase production through a joint venture at Los Bronces and Andina copper mines in the South American nation. The joint mining plan is expected to unlock 2.7 million metric tons of additional copper over a 21-year period, delivering an average of 12,000 tons per year. The increase comes with “minimal capital investment” and should bring the new supply online by 2030. “This agreement represents a more efficient and responsible way to develop one of the world’s leading copper districts,” Bernardo Fontaine, Codelco’s chairman, said in a statement. “It allows us to make better use of existing infrastructure, capture greater benefits for Chile, and move forward with a long-term vision based on operational excellence, sustainability, and the responsible use of resources.”
If green hydrogen is the stuff made with clean electricity and water and blue hydrogen is made with natural gas equipped with carbon capture, then the orange stuff is found in underground rock formations where naturally occurring gas forms and then is encouraged to continue forming through artificial means. Heatmap’s Katie Brigham did a good job of explaining the concept here. Well, now a French renewables developer FDE is promising to start producing orange hydrogen “by late 2028 or early 2029” after finding a naturally-occurring underground reservoir in northern France that can be tapped and stimulated to produce additional fuel, Hydrogen Insight reported.