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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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When it comes to energy and data centers, everyone loves Texas. Its pro-business political consensus, unusually deregulated electricity market, wide-open plains, sunny skies, and large natural gas and oil deposits have attracted data center developers, renewables developers, liquefied natural gas export terminals, and battery storage entrepreneurs alike.
But this all happened under decades of unified Republican control of Texas’ government. That’s ending on January 19, when Gina Hinojosa is sworn in as governor alongside every other holder of statewide elected office who won this year. In Austin, they will join a Democratic majority Texas House of Representatives, which has been under Republican control since 2003.
Immediately following the election, stocks linked to data center development in Texas swooned — Elon Musk’s SpaceX is down 12.5% since Tuesday, data center developer CoreWeave is down almost 19%, Oracle is down 9%, Texas-based independent power producer Vistra is down 19%. Sterling Infrastructure, a civil construction company headquartered outside Houston, has seen its shares fall 32%.
On the campaign trail, Hinojosa called for a moratorium on data centers until the legislature could pass legislation putting guardrails around development, including protecting residential ratepayers from electricity price hikes and giving local communities more leeway to restrict and condition development. Two weeks before election day, she released a video criticizing Governor Greg Abbott’s “Batch Zero” review process — which had been broadly characterized as a “pause” when it was announced over the summer — for allowing new permits, and she said that she would issue a “ban” on all data center approvals until new laws could be passed.
When Abbott introduced his pause over the summer, Texas’s electricity market ERCOT had 474 gigawatts of data center interconnection requests in its queue (almost all from data centers), a figure he said was around five times the electricity market’s peak demand. That review is due to end next month, shortly before Hinojosa is due to take office, leaving little time for new projects to get approved before the moratorium goes into effect.
Some observers and investors took a sanguine view of Hinojosa’s data center policies. Gavin Baker, a longtime investor in SpaceX, said on X that Hinojosa’s policies “sound reasonable” and pointed to an interview she gave saying that the moratorium would be on new permits and would not affect the pipeline of permitted projects.
The data center and energy industry, however, is in wait-and-see mode when it comes to the severity of the moratorium.
“If she was thinking of trying to go after projects that had begun the construction process,” Brandt Vermillion, U.S. research lead at Modo Energy, said, “I think it would change the overall outlook a ton.”
According to Modo Energy analysis, there are some 25 gigawatts worth of projects under construction in Texas, another 4.6 gigawatts permitted, and another 90 gigawatts that are either just announced or have only submitted grid studies. If Hinojosa “is only going after non-permitted projects,” Vermillion added, then anyone thinking about the future path of data center development in Texas should be more concerned about supply chain constraints like obtaining enough chips to power the data centers.
That being said, the Texas legislature’s session doesn’t end until May 2027, meaning that Hinojosa’s pause could last several months before lawmakers put guardrails into law.
“I don’t think we’re going to not build another data center in the state,” Joshua Rhodes, a research scientist at the University of Texas at Austin, told me. “But I think that they’re going to be under quite a bit more scrutiny.”
That being said, analysts are now much more uncertain about the future path of electricity demand in the state. “Texas demand is difficult to project after Gina Hinojosa’s surprise win,” Jefferies analyst Julien Dumoulin-Smith wrote in a note to clients on Thursday.
That means more trouble for developers in Texas, especially for storage projects, which had already been seeing extremely volatile monthly revenue.
“Batteries and energy storage have been counting on demand to go up because they’re having a rough time out there right now in terms of revenues,” Rhodes said. “Demand will have a pretty big impact on supply.”
One thing the battery storage industry, as well as solar and wind developers, can cheer is that Democratic control of the governorship and the state House means that the threat of anti-renewables bills has fallen to essentially zero.
The renewables industry is hoping that data center development does continue in Texas, but that it looks more orderly and grid-connected.
Going forward, Vermillion expects that data center developers will have a harder time getting tax abatements, which means that a “well-capitalized hyperscaler” could potentially still pursue projects.
“Project A that was going to go about development in a certain way of seeking tax abatements and buying a bunch of reciprocating engines and trying to run themselves off grid” is much less likely to be able to go forward in Hinojosa’s Texas, Vermillion told me, especially as she is able to appoint new commissioners to the Texas Public Utility Commission or the Texas Commission on Environmental Quality.
Tim Woodruff, the data center lead at Modo, told me similarly. “In the near term, if you're one of the neo clouds, maybe now you start pushing a little harder on your projects that you have in MISO or in CAISO,” he said.
Invest in Tomorrow Coalition says it took out clean energy adversaries in the midterms. Now it’s setting its sights on 2028.
A pro-renewables Super PAC – Invest in Tomorrow Coalition – is taking a victory lap, claiming it played a key role in the blue wave and announcing plans to be involved in the 2028 presidential primaries.
When I first heard of the Invest in Tomorrow Coalition, it was clearly a revenge operation. Backed by renewables companies and crypto magnate Chris Larsen, the Super PAC waded into primary elections this year to take out Republicans who voted to repeal most of the Inflation Reduction Act. Tom Matzzie, a renewables executive leading the Super PAC, described the organization to me as “focused on accountability for elected officials who decide they want to attack the clean energy industry.” Shortly afterwards, Invest in Tomorrow announced an investment in seven races before ultimately expanding to 18 races.
Now that the dust is settled, Matzzie told me that most of the races they intervened in wound up flipping red to blue: “I think we’re on track to win 12 or 13 of the 18 we invested in. We had seven or eight marquee races and we’re winning the majority of those. We were hopeful we’d get one in a tough district. We didn’t expect to get this many.”
Their favorite trophy is Indiana’s 5th congressional district in the northern Indianapolis region, where Rep. Victoria Spartz lost a historically comfortable GOP seat to J.D. Ford, a Democratic state senator. Matzzie told me the Super PAC invested $2 million in the race to beat Spartz, which he claimed is more than both campaigns spent combined. (My search of FEC records shows that may be true, if you don’t count other outside assistance.)
After Spartz was declared the loser, the Super PAC sent an email blast to the media with a short statement: “Tell Victoria Spartz. We want her to know it was us.”
The Super PAC also claims at least partial responsibility for helping oust Rep. Lauren Boebert of Colorado, who lost by just a few thousand votes. I’m told they invested $1.5 million in the race, including on a digital ad centered around an incident where Boebert was escorted out of a live stage performance of “Beetlejuice.” The ad claimed Boebert couldn’t be trusted around children. It prompted Boebert to do a whole segment bashing the Super PAC while guest hosting former Rep. Matt Gaetz’s One America News show.
“Oh, I love it when they complain about us. I love it when they whine about us. We want them to spread the word to other members of Congress about what we’re doing,” Matzzie told me. “We want to send a message that we will do what is necessary to defeat you in your next election, including getting down in the mud if needed, and we have limits on what we say and won’t say, but it has to be truthful.”
Since it is already time for 2028 discussions, I asked Matzzie if the Super PAC had any ambitions to be involved in the presidential primaries next. Absolutely, he said. First that involvement will look like education. That could look like having pro-renewables voices urging GOP candidates to be more receptive to the sector, whether they be representatives of the business community or landowners with solar on their properties.
“The accountability part of this comes later as people firm up their point of view on what they’re running on and we don’t know what that is yet. We totally invite all of the candidates to be supportive of the clean energy industry if they’re running for president. That is our ideal outcome,” Matzzie said.
But if candidates don’t get the message will they go on the attack against primary candidates? “I have no hesitation about doing it.”
On electrification’s shortfall, AI for nuclear, and Alva Energy’s big plans
Current conditions: Heavy rain is overflowing rivers in the Dominican Republic’s eastern inland towns, including Monte Plata, where floodwaters are washing away cars • With weeks to go before the Atlantic hurricane season officially ends, a new tropical storm may be forming between the Bahamas and Bermuda • It’s cloudy and 51 degrees Fahrenheit in London, where the British are marking Guy Fawkes Day, a holiday commemorating the 421st anniversary of the failed plot by English Catholics to assassinate King James VI of Scotland and I of England by blowing up the House of Parliament.
It’s a rebuke of President Donald Trump! A new era! A sign that President Lyndon B. Johnson’s prediction that the Democrats would lose the South until the end of young Bill Moyers’ lifetime (he died last year) was true! Maybe it’s all of these things. But one thing is certain: Democrats’ big victory Tuesday night halts what my colleague Robinson Meyer called “Trump’s energy revolution,” meant to defy the economics of renewables. There’s still much to dissect — we don’t even know who won shockingly competitive U.S. Senate races in Mississippi and Alaska. But my colleagues have a nice slate of stories to help us get started:
Vice President JD Vance is openly blaming the Trump administration’s war with Iran for Republicans’ midterm shellacking, and Democrats are formulating a new approach after campaigning against the conflict and its associated energy shock. Iran, meanwhile, is signaling its openness to peace talks, even as Tehran turns to guerrilla tactics to regain control over the Strait of Hormuz. All that looks to oil traders like more crude hitting the market. On Wednesday, the price of West Texas Intermediate crude, the U.S. benchmark, fell more than 8% to $88 per barrel. Brent crude, the global price measure, plunged nearly 9% to just under $95 per barrel. Murban crude, the stuff that leaves a Persian Gulf port in the United Arab Emirates, dropped 1% to just under $101 per barrel.

Big meals, big trucks, big computers — it’s the American way. Only one of those is a problem for electricity prices — a problem that’s also uniquely American. New projections from the Rhodium Group suggest that the U.S. is the only major market where data centers are the primary driver behind surging electricity demand, constituting between 62% and 77% of gross demand growth. In China, Europe, India, and the Middle East, residential and commercial buildings are by far the biggest new sources of demand for electricity to power air conditioning, heating, and appliances. Meanwhile, according to data from the consultancy Cleanview, upward of 41% of planned data centers in the U.S. are in states where newly elected governors are considering moratoria on new projects
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The Rhodium forecast also shows big global challenges for the fight to slow global warming. Electricity serves just 21% of the world’s end-use energy; by 2035, countries pledged to raise that figure to 35%. But the global average for electrification is on track to hit just 28% in the next nine years, threatening to maintain planet-heating pollution levels even as renewables surge and power emissions fall. Low-carbon sources of electricity are on track to generate upward of 80% of the power in China and the world’s richest economies, with variable renewables such as wind and solar producing the bulk of the output. Clean firm sources such as nuclear power and geothermal maintain a steady share of total output as variable sources eat into fossil fuels’ market. As a result, emissions shift to the parts of the world where fossil fuels will remain dominant. China and rich countries will account for 37% of emissions in 2050, down from 54% in 2024. India’s emissions will rise 26% by the middle of the century, and the entire African continent’s output by 37%. Worldwide industrial emissions are on track to stay static as the benefits of low-carbon steel are offset by the spike in production from coal-fired blast furnaces.
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Whenever OpenAI or Anthropic releases a new model, the healthcare industry, say, can measure its capabilities by seeing how quickly it can pass a medical board test. Last year, the AI startup Atomic Canyon — which formed to help nuclear plant operators sift through mountains of documents using large language models — inked a deal with the Idaho National Laboratory to create a test that can check the software’s ability to work with a nuclear plant. Fourteen months later, the partnership has yielded results. On Thursday, I can report exclusively for this newsletter, Atomic Canyon is set to launch what it calls NuclearBench, the first open-source benchmark designed specifically to evaluate how LLMs perform on questions related to nuclear energy. “Think about it like an open-book exam for AI models,” Trey Lauderdale, Atomic Canyon’s founder and chief executive, told me. The company worked with INL to design a 280-question exam, which can then be administered to AI models, whose answers are judged by accuracy and context.
“As you’d expect, the more advanced models perform better. You’ve got OpenAI, Google, and Anthropic all vying at the top,” Lauderdale said. “Nothing we wouldn’t expect, but it’s nice to have actual metrics and information that validate general hypotheses you might have. You could instinctively say, This model is doing better. But it’s really important as an industry that you start benchmarking what these models can do.” Atomic Canyon’s test is not yet at the level of a medical board exam, he said. But the company plans to continuously update its exam to account for the growing sophistication of LLMs. Eventually, Lauderdale hopes to roll out more targeted tests focusing on safety and risk, reactor engineering, emergency preparedness, radiation, and other factors. “It’s the equivalent of the tests to become a general physician or those to become a cardiologist, dermatologist, or gastroenterologist,” he said.
Last month, I told you when tech giants announced a series of deals to help fund “uprates” at existing nuclear plants, renovations that potentially squeeze hundreds of megawatts of new generation out of reactors that are already running. The deals with Google and Amazon looked to generate more than a gigawatt of new power through uprates across PJM Interconnection, the most stressed grid system in the U.S. Now a startup specifically designed to affordably uprate reactors is considering projects to generate as much as 1.2 gigawatts of new power out of existing plants — and it just received a major endorsement from a utility industry heavyweight. I can exclusively report that, on Thursday, the developer Alva Energy plans to announce that Jeff Lyash, the former chief executive of the Tennessee Valley Authority and Ontario Power Generation, would join its board of directors. Lyash has plenty of nuclear experience. OPG, owned by Canada’s most populous province, operates the second-largest nuclear fleet in North America after the U.S.-based Constellation Energy. It’s also building the continent’s first small modular reactor, the first of GE Vernova Hitachi Nuclear Energy’s 300-megawatt units. The federally owned TVA, from which Lyash retired last year following Trump’s return to the White House, operates three nuclear plants and is building what’s expected to be America’s first SMR, the second GE-Hitachi BWRX-300 after OPG’s project at its Darlington plant. Lyash will be the fifth member of Alva’s board. After former Intel CEO Pat Gelsinger, he’s the second to come from outside the company; the other three board members are Alva’s co-founders.
“What’s been pretty amazing is that we’re starting to attract top-tier industry talent,” James Krellenstein, Alva’s chief executive and co-founder, told me. “Jeff joining the board has been pretty transformational because he brings a massive amount of experience in modifying existing plants.” At OPG in particular, Krellenstein said, Lyash oversaw refurbishments of the utility’s CANDU reactors. He also sits on the boards of the utility Dominion Energy, the Canadian construction giant Aecon, the industrial conglomerate Curtiss-Wright, and the European reactor startup Newcleo, which Krellenstein said lends Alva greater insight into other sectors’ large-scale project management. “What the economy of the United States is looking for is sources of clean, 24/7 power. Nuclear power uprates are a way in the short term to get that demand fulfilled in the United States while simultaneously rebuilding the execution capability necessary to create new plants. That’s the exact scaling strategy that Alva is working on.”
It’s no Norway, where electric vehicles make up nearly 99% of new car sales. But EVs’ share of Germany’s new car market soared to a record 37% last month, according to data from the country’s national motor vehicle authority, the Kraftfahrt-Bundesamt. That, according to Electrek, equates to 94,086 new battery-electric vehicles, up nearly 80% from the 53,425 sold a year earlier.