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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.
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On China’s H2 breakthrough, vehicle-to-grid charging, and USA Rare Earth goes to Brazil
Current conditions: In the Atlantic, Tropical Storm Fernand is heading northward toward Bermuda • In the Pacific, Tropic Storm Juliette is active about 520 miles southwest of Baja California, with winds of up to 65 miles per hour • Temperatures are surging past 100 degrees Fahrenheit in South Korea.
Nearly two weeks ago, Vineyard Wind sued one of its suppliers, GE Vernova, to keep the industrial giant from exiting the offshore wind project off the coast of Nantucket in Massachusetts. Now a U.S. court has ordered GE Vernova to finish the job, saying it would be “fanciful” to imagine a new contractor could complete the installation. GE Vernova had argued that Vineyard Wind — a 50/50 joint venture between the European power giant Avangrid and Copenhagen Infrastructure Partners — owed it $300 million for work already performed. But Vineyard Wind countered that the manufacturer remains on the hook for about $545 million to make up for a catastrophic turbine blade collapse in 2024, according to WBUR. “The project is at a critical phase and the loss of [Vineyard Wind]’s principal contractor would set the project back immeasurably,” the Suffolk County Superior Court Judge Peter Krupp wrote in his decision, repeatedly using the name of GE Vernova’s renewables subsidiary. “To pretend that [Vineyard Wind] could go out and hire one or more contractors to finish the installation and troubleshoot and modify [GE Renewables’] proprietary design without [GE Renewables’] specialized knowledge is fanciful.”
Charlotte DeWald fears the world is sleepwalking into tipping points beyond which the Earth’s natural carbon cycles will render climate change uncontrollable. By the time we realize what it means for global weather and agricultural systems that there’s no sea ice in the Arctic sometime in the 2030s, for example, it may be too late to try anything drastic to buy us more time. Much of the discourse around what to do concerns a specific kind of geoengineering called stratospheric aerosol injections, essentially spraying reflective particles into the sky to block the sun’s heat from permeating the increasingly thick layer of greenhouse gases that prevent that energy from naturally radiating back into space. That’s something DeWald, a former Pacific Northwest National Laboratory researcher and climate scientist by training who specialized in modeling aerosol-cloud interactions, knows all about. But her approach is different, using a technology known as mixed-phase cloud thinning, a process similar to cloud seeding. “The idea is that you could dissipate clouds over the Arctic to release heat from the surface to, for example, increase sea ice extent or thickness or integrity,” she told me. “There’s some early modeling that suggests that it could yield significant cooling over the Arctic Ocean.”
With all that context, you can now appreciate the exclusive bit of news I have for you this morning: DeWald is launching a new nonprofit called the Arctic Stabilization Initiative to “evaluate whether targeted interventions can slow dangerous” warming near the Earth’s northern pole. So far, ASI has raised $6.5 million in philanthropic funding toward a five-year budget goal of $55 million to study whether MCT, as mixed-phase cloud thinning is known, could help save the Arctic. The nonprofit has an advisory board stacked with veteran Arctic scientists and put together a “stage-gated” research plan with offramps in case early modeling suggests MCT won’t work or could cause undue environmental damage. The project also has an eye toward engaging with Indigenous peoples and “will ground all future work in respect for Indigenous sovereignty, before any field-based research activity is pursued.” The statement harkens to Harvard University’s SCoPEx trial, a would-be outdoor experiment in spraying reflective aerosols into the atmosphere over Sweden that ran aground after researchers initially failed to consult local stakeholders and a body representing the Indigenous Saami people in the northern reaches of Nordic nations came out against the testing. (By repeatedly invoking ASI’s nonprofit status, DeWald also seemed to draw a contrast with for-profit stratospheric aerosol injection startup Stardust Solutions, which last year Heatmap’s Robinson Meyer reported had raised $60 million.) “We are continuing to move toward critical planetary thresholds without a bible plan for things like tipping points,” DeWald said. “That was the inflection point for me.”

China just took yet another step closer to energy independence, despite its relatively tiny domestic reserves of oil and gas, kicking off the world’s largest project to blend hydrogen into the natural gas system. As part of the experiment, roughly 100,000 households in the center of the Weifang, a prefecture-level city in eastern Shandong province between Beijing and Shanghai, will receive a blend of up to 10% hydrogen through existing gas pipes. The pilot’s size alone “smashes” the world record, according to Hydrogen Insight. Whether that’s meaningful from a climate perspective depends on how you look at things. A fraction of 1% of China’s hydrogen fuel comes from electrolyzer plants powered by clean renewables or nuclear electricity. But the People’s Republic still produces more green hydrogen than any other nation. Last year, the central government made cleaning up heavy industry with green hydrogen a higher priority — a goal that’s been supercharged by the war in Iran. Therein lies the real biggest motivator now. While China relies on imports for natural gas, swapping out more of that fuel for domestically generated hydrogen allows Beijing to claim the moral high ground on emissions and air pollution — all while becoming more energy independent.
Meanwhile, China’s container ships are the latest sector to experiment with going electric and forgoing the need for costly, dirty bunker fuel. A 10,000-ton fully electric cargo vessel capable of carrying 742 shipping containers just started up operations in China this week, according to a video posted on X by China’s Xinhua News service.
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The ability of electric vehicles to serve as distributed energy resources, charging in times of low demand and discharging back onto the grid when demand peaks, has long been a dream of EV enthusiasts and DER advocates alike. California’s PG&E utility launched a small bi-directional charging program in 2023, allowing owners of Ford F-150 Lightnings to use their trucks as home backup power, and eventually feed energy back onto the grid. The utility added a host of General Motors EVs to the program back in 2025. On Monday, it announced its latest vehicle participant: Tesla’s Cybertruck. The Tesla vehicle will be the first in the program to run on alternating current, which simplifies the equipment necessary and lowers costs for consumers, according to PG&E’s announcement.
In January, I told you about the then-latest company to benefit from President Donald Trump’s dabbling in what you might call state capitalism with American characteristics: USA Rare Earth. The vertically integrated company, which aims to mine rare earths in Texas, took big leaps forward in the past year toward building factories to turn those metals into the magnets needed for modern technologies. For now, however, the company needs ore. On Monday, USA Rare Earth announced plans to buy Brazilian rare earth miner Serra Verde in a deal valued at $2.8 billion in cash and shares. The transaction is expected to be complete by the end of the third quarter of this year. The company pitched the move as a direct challenge to China, which dominates both the processing of rare earths mined at home and abroad. “The world has become too dependent on a single source and it’s high time to break that dependency,” USA Rare Earth CEO Barbara Humpton told CNBC’s “Squawk Box” on Monday.
As if we needed more evidence that the data center backlash is “swallowing American politics,” here’s Heatmap’s Jael Holzman with yet another data point: According to tracking from the Heatmap Pro database, fights against data centers now outnumber fights against wind farms in the U.S. That includes both onshore and offshore wind developments. “Taken together,” Jael wrote, “these numbers describe the tremendous power involved in the data center wars.”
Fights over AI-related developments outnumber those over wind farms in the Heatmap Pro database.
Local data center conflicts in the U.S. now outnumber clashes over wind farms.
More than 270 data centers have faced opposition across the country compared to 258 onshore and offshore wind projects, according to a review of data collected by Heatmap Pro. Data center battles only recently overtook wind turbines, driven by the sudden spike in backlash to data center development over the past year. It’s indicative of how the intensity of the angst over big tech infrastructure is surging past current and historic malaise against wind.
Battles over solar projects have still occurred far more often than fights over data centers — nearly twice as many times, per the data. But in terms of megawatts, the sheer amount of data center demand that has been opposed nearly equals that of solar: more than 51 gigawatts.
Taken together, these numbers describe the tremendous power involved in the data center wars, which is now comparable to the entire national fight over renewable energy. One side of the brawl is demand, the other supply. If this trend continues at this pace, it’s possible the scale of tension over data centers could one day usurp what we’ve been tracking for both solar and wind combined.
The enhanced geothermal darling is spending big on capex, but its shares will be structured more like a software company’s.
Fervo, the enhanced geothermal company that uses hydraulic fracturing techniques to drill thousands of feet into the Earth to find pockets of heat to tap for geothermal power, is going public.
The Houston-based company was founded in 2017 and has been a longtime favorite of investors, government officials, and the media (not to mention Heatmap’s hand-selected group of climate tech insiders) for its promise of producing 24/7 clean power using tools, techniques, and personnel borrowed from the oil and gas industry.
After much speculation as to when it would go public, Fervo filed the registration document for its initial public offering on Friday evening. Here’s what we were able to glean about the company, its business, and the geothermal industry from the filing.
The main theme of the document, known as an S-1, is the immense potential enhanced geothermal — and, thus, Fervo — has.
The company says that its Cape Station site in Utah, where it’s currently developing its flagship power plants, had “4.3 gigawatts of capacity potential” alone. That’s more than the 3.8 gigawatts of conventional geothermal capacity currently on the grid. Enhanced geothermal technology, otherwise known as EGS, “has the potential to make geothermal generation as ubiquitous as solar generation is in the U.S. today,” the company projects. (There’s about 280 gigawatts of installed solar capacity currently in the U.S., according to the Solar Energy Industries Association) “A broader subset of our reviewed leases represents over 40 gigawatts” of capacity, the document goes on.
Like all investor pitches, the S-1 features some eye-popping “total addressable market” figures. Citing analysis by the consulting firm Rystad, the document says that if there’s a sufficient shortfall in capacity due to retiring power plants (98 gigawatts by 2035), the annual market for enhanced geothermal would be approximately $70 billion by 2035, and that this would represent some $2.1 trillion in revenue potential over 30 years.
The company is already producing 3 megawatts at its Nevada Project Red site for the Nevada grid as part of a deal with Google. It also expects to begin generating power from the Cape Station site “by late 2026,” according to the filing, and get up to 100 megawatts “by early 2027.” In total, Fervo has “658 megawatts of binding power purchase agreements,” which it says represents ”approximately $7.2 billion in potential revenue backlog.”
Beyond that, Fervo says it has 2.6 gigawatts “in advanced development,” and “over 38 gigawatts” in “early-stage development,” where it’s still doing feasibility studies to “validate and confirm the path toward commercial development.”
Fervo says that the energy produced from its Cape Station facility will come in at around $7,000 per kilowatt. That’s already cheaper than “traditional and small modular nuclear power,” which the Department of Energy has estimated costs $6,000 to $10,000 per kilowatt, the filing says. Fervo is aiming to get the total project costs down to $3,000 per kilowatt, at which point it says it would outcompete natural gas without any of the price volatility due to fuel costs going up and down.
But Fervo’s upfront spending is still immense. Fervo says that it expects some $1.2 billion in capital expenditure this year, of which only $125 million is going toward the first phase of its Cape Station project, which it has said would deliver 100 megawatts of power. (Meanwhile, the $940 million it expects to spend on the second phase, which is due to be 400 megawatts, is mostly unfunded.) The company says the public offering will fund “project-level capital expenditures,” as well as land holdings and general corporate expenditures.
Google comes up some 36 times in the document, most times in reference to the “Geothermal Framework Agreement” Fervo signed with the hyperscaler this past March. The S-1 describes the deal as a “3-gigawatt framework agreement … to advance and structure potential power offtake opportunities for current and planned data centers in both grid-connected and alternative energy solutions.” This deal, the company says, “establishes a structured process for the development of geothermal projects across specified regions of the United States,” and could involve the offtake by Google of up to 3 gigawatts of Fervo-generated electricity by the end of 2033.
What the framework is not is a power purchase agreement. One of the risk factors Fervo lists in the IPO document says, “The GFA is a non-binding agreement, and does not obligate Google to purchase power from us.” Instead, it is “a binding framework under which we may propose geothermal development projects to Google, but it does not obligate Google to accept any project, execute any power purchase agreement or provide us with any project financing.”
The agreement also places limits on Fervo, including from whom it can accept investment or financing. (The deal outlines a “broad category of entities defined as competitors,” which are all no-nos.) Overall, the company says, the arrangement gives Google “significant priority over our near-term development pipeline and may limit our flexibility to pursue alternative commercial, strategic, or financing arrangements that would otherwise be available to us.”
Upon going public, the company will have two shares of stock: Class A shares available to the public, and Class B shares owned by its founders, chief executive officer Tim Latimer, and chief technology officer Jack Norbeck. These Class B shares will have 40 times the voting rights of the class A shares and will allow Latimer and Norbeck to “collectively continue to control a significant percentage of the combined voting power of our common stock and therefore are able to control all matters submitted to our stockholders for approval.”
These arrangements are familiar with venture-backed, founder-led software companies. Alphabet and Meta are the most prominent examples of large, publicly traded companies that are under the effective control of their founders thanks to dual class share structures. Tesla, rather famously, does not have a dual class share structure, which is why CEO Elon Musk convinced his board to award him more shares so that he would maintain a high degree of influence over the company.
While other technology companies such as Stripe pile up billions in revenue without any near term prospects of going public, Fervo largely has spending to report on its income statement.
In 2025, the company reported just $138,000 in revenues with a $58 million net loss; that’s compared to a $41 million net loss in 2024. The revenues were “ancillary fees associated with rights to geothermal production at Project Red,” the company said. “This type of revenue is not expected to be significant to our long-term revenue generation, as we have not yet commenced large-scale commercial operations.”
And there’s more spending to come.
Fervo expects that the second phase of its Cape Station project will “require approximately $2.2 billion in capital expenditures through 2028,” which it hopes to pay for with project-level financing.
Fervo said it is “continuing to evaluate the effect of the OBBB” — that is, the One Big Beautiful Bill Act, which slashed or curtailed tax credits for clean energy companies — and that it wasn’t able to “reasonably” estimate the effect on its financial statements by the end of last year. The company does say, however, that it “may benefit from ITCs and PTCs (including the energy community and domestic content bonuses available under the ITC and PTC, in certain circumstances) with respect to qualifying renewable energy projects,” referring to the investment and production tax credits, which acquired a strict set of eligibility rules under OBBBA. It cautioned that the current guidance regarding tax credit eligibility is “subject to a number of uncertainties,” and that “there can be no assurance that the IRS will agree with our approach to determining eligibility for ITCs and PTCs in the event of an audit.”
The company also disclosed that earlier this month, it reached a deal with Liberty Mutual, the insurance company “to sell and transfer tax credits generated at Cape Station Phase I,” taking advantage of a provision of the law that allows credits to be sold to other entities with tax liability, and not just harvested by investors in the project.