You’re out of free articles.
Log in
To continue reading, log in to your account.
Create a Free Account
To unlock more free articles, please create a free account.
Sign In or Create an Account.
By continuing, you agree to the Terms of Service and acknowledge our Privacy Policy
Welcome to Heatmap
Thank you for registering with Heatmap. Climate change is one of the greatest challenges of our lives, a force reshaping our economy, our politics, and our culture. We hope to be your trusted, friendly, and insightful guide to that transformation. Please enjoy your free articles. You can check your profile here .
subscribe to get Unlimited access
Offer for a Heatmap News Unlimited Access subscription; please note that your subscription will renew automatically unless you cancel prior to renewal. Cancellation takes effect at the end of your current billing period. We will let you know in advance of any price changes. Taxes may apply. Offer terms are subject to change.
Subscribe to get unlimited Access
Hey, you are out of free articles but you are only a few clicks away from full access. Subscribe below and take advantage of our introductory offer.
subscribe to get Unlimited access
Offer for a Heatmap News Unlimited Access subscription; please note that your subscription will renew automatically unless you cancel prior to renewal. Cancellation takes effect at the end of your current billing period. We will let you know in advance of any price changes. Taxes may apply. Offer terms are subject to change.
Create Your Account
Please Enter Your Password
Forgot your password?
Please enter the email address you use for your account so we can send you a link to reset your password:
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.)
Get one great climate story in your inbox every day:
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:
Log in
To continue reading, log in to your account.
Create a Free Account
To unlock more free articles, please create a free account.
A new PowerLines report puts the total requested increases at $31 billion — more than double the number from 2024.
Utilities asked regulators for permission to extract a lot more money from ratepayers last year.
Electric and gas utilities requested almost $31 billion worth of rate increases in 2025, according to an analysis by the energy policy nonprofit PowerLines released Thursday morning, compared to $15 billion worth of rate increases in 2024. In case you haven’t already done the math: That’s more than double what utilities asked for just a year earlier.
Utilities go to state regulators with its spending and investment plans, and those regulators decide how much of a return the utility is allowed to glean from its ratepayers on those investments. (Costs for fuel — like natural gas for a power plant — are typically passed through to customers without utilities earning a profit.) Just because a utility requests a certain level of spending does not mean that regulators will approve it. But the volume and magnitude of the increases likely means that many ratepayers will see higher bills in the coming year.
“These increases, a lot of them have not actually hit people's wallets yet,” PowerLines executive director Charles Hua told a group of reporters Wednesday afternoon. “So that shows that in 2026, the utility bills are likely to continue to rise, barring some major, sweeping action.” Those could affect some 81 million consumers, he said.
Electricity prices have gone up 6.7% in the past year, according to the Bureau of Labor Statistics, outpacing overall prices, which have risen 2.7%. Electricity is 37% more expensive today than it was just five years ago, a trend researchers have attributed to geographically specific factors such as costs arising from wildfires attributed to faulty utility equipment, as well as rising costs for maintaining and building out the grid itself.
These rising costs have become increasingly politically contentious, with state and local politicians using electricity markets and utilities as punching bags. Newly elected New Jersey Governor Mikie Sherrill’s first two actions in office, for instance, were both aimed at effecting a rate freeze proposal that was at the center of her campaign.
But some of the biggest rate increase requests from last year were not in the markets best known for high and rising prices: the Northeast and California. The Florida utility Florida Power and Light received permission from state regulators for $7 billion worth of rate increases, the largest such increase among the group PowerLines tracked. That figure was negotiated down from about $10 billion.
The PowerLines data is telling many consumers something they already know. Electricity is getting more expensive, and they’re not happy about it.
“In a moment where affordability concerns and pocketbook concerns remain top of mind for American consumers, electricity and gas are the two fastest drivers,” Hua said. “That is creating this sense of public and consumer frustration that we're seeing.”
The battery recycling company announced a $425 million Series E round after pivoting to power data centers.
Amidst a two year-long slump in lithium prices, the Nevada-based battery recycling company Redwood Materials announced last summer that it had begun a new venture focused on grid-scale energy storage. Today, it’s clear just how much that bet has paid off.
The company announced a $425 million round of Series E funding for the new venture, known as Redwood Energy. That came from some big names in artificial intelligence, including Google and Nvidia’s venture capital arm, NVentures. This marks the final close of the funding round, increasing the total from $350 million announced in October.
Redwood Energy adapts the company’s original mission — breaking down spent batteries to recover, refine, and resell critical minerals — to suit the data center revolution. Instead of merely extracting battery materials, the company can now also repurpose electric vehicle batteries that still have some life left in them as energy storage solutions for AI data centers, allowing Redwood to get value from the battery throughout its lifecycle.
“Regardless of where lithium prices are, if we can put [a lithium-ion battery] in a large-scale energy storage system, it can have a lot more value before we break it down into critical materials,” Claire McConnell, Redwood’s new VP of business development for energy storage, told me.
Over the past 12 to 18 months, she explained that the company had started to receive more and more used electric vehicle battery packs “in better condition than we initially anticipated.” Given the substantial electricity load growth underway, McConnell said the company saw it as “perfect moment” to “develop something that could be really unique for that market.”
At the time of Redwood Energy’s launch last June, the company announced that it had stockpiled over a gigawatt-hour of used EV batteries, with an additional 5 gigawatt-hours expected over the following year. Its first microgrid pilot is already live and generating revenue in Sparks, Nevada, operating in partnership with the data center owner and operator Crusoe Energy. That project is off-grid, supplying solar-generated electricity directly to Crusoe’s data center. Future projects could be grid-connected though, storing energy when prices are low and dispatching it when there are spikes in demand.
The company also isn’t limiting itself to used battery packs, McConnell told me. Plenty of manufacturers, she said, are sitting on a surplus of new batteries that they’re willing to offload to Redwood. The potential reasons for that glut are easy to see: already-slower-than-expected EV adoption compounded by Trump’s rollback of incentives has left many automakers with lower than projected EV sales. And even in the best of times, automakers routinely retool their product lines, which could leave them with excess inventory from an older model.
While McConnell wouldn’t reveal what percent of packs are new, she did tell me they make up a “pretty meaningful percentage of our inventory right now,” pointing to a recently announced partnership with General Motors meant to accelerate deployment of both new and used battery packs for energy storage.
While Redwood isn’t abandoning its battery recycling roots, this shift in priorities toward data center energy storage comes after a tough few years for the battery recycling sector overall. By last June, lithium prices had fallen precipitously from their record highs in 2022, making mineral recycling far less competitive. Then came Trump’s cuts to consumer electric vehicle incentives, further weakening demand. On top of that, the rise of lithium-iron phosphate batteries — which now dominate the battery storage sector and are increasingly common in EVs — have reduced the need for nickel and cobalt in particular, as they’re not a part of this cheaper battery chemistry.
All this helped create the conditions for the bankruptcy of one of Redwood’s main competitors, Li-Cycle, in May 2025. The company went public via a SPAC merger in 2021, aiming to commercialize its proprietary technique for shredding whole lithium-ion battery packs at once. But it ultimately couldn’t secure the funds to finish building out its recycling hub in Rochester, New York, and it was acquired by the commodities trading and mining company Glencore last summer.
“We started really early, and in a way we started Redwood almost too early,” JB Straubel, Redwood’s founder and Tesla’s co-founder, told TechCrunch last summer. He was alluding to the fact that in 2017, when Redwood was founded, there just weren’t that many aging EVs on the road — nor are there yet today. So while an influx of used EV batteries is eventually expected, slower than anticipated EV adoption means there just may not be enough supply yet to sustain a company like Redwood on that business model alone.
In the meantime, Redwood has also worked to recycle and refine critical minerals from battery manufacturing scrap and used lithium-ion from consumer electronics. Partnerships with automakers such as Toyota, Volkswagen, and General Motors, as well as global battery manufacturer Panasonic, have helped bolster both its EV battery recycling business and new storage endeavor. The goal of building a domestic supply chain for battery materials such as lithium, nickel, cobalt, and copper also remains as bipartisan as ever, meaning Redwood certainly isn’t dropping the recycling and refining arm of its business, even as it shifts focus toward energy storage.
For instance, it’s also still working on the buildout of a recycling and battery component production facility in Charleston, South Carolina. While three years ago the company announced that this plant would eventually produce over 100 gigawatt-hours of cathode and anode battery components annually, operations on this front appear to be delayed. When Redwood announced that recycling and refining operations had begun in Charleston late last year, it made no mention of when battery component production would start up.
It’s possible that this could be taking a backburner to the company’s big plans to expand its storage business. While the initial Crusoe facility offers 63 megawatt-hours of battery energy storage, McConnell told me that Redwood is now working on projects “in the hundreds of megawatt-hours, looking to gigawatt-hour scale” that it hopes to announce soon.
The market potential is larger than any of us might realize. Over the next five or so years, McConnell said, “We expect that repurposed electric vehicle battery packs could make up 50% of the energy storage market.”
Fossil fuel companies colluded to stifle competition from clean energy, the state argues.
A new kind of climate lawsuit just dropped.
Last week the state of Michigan joined the parade of governments at all levels suing fossil fuel companies for climate change-related damages. But it’s testing a decidedly different strategy: Rather than allege that Big Oil deceived the public about the dangers of its products, Michigan is bringing an antitrust case, arguing that the industry worked as a cartel to stifle competition from non-fossil fuel resources.
Starting in the 1980s, the complaint says, ExxonMobil, Chevron, Shell, BP, and their trade association, the American Petroleum Institute, conspired “to delay the transition from fossil fuels to renewable energy” and “unlawfully colluded to reduce innovation” in Michigan’s transportation and energy markets. This, it alleges, is a key driver of Michigan’s (and the country’s) present-day struggles with energy affordability. If the companies had not suppressed renewable energy and electric vehicles, the argument goes, these technologies would have become competitive sooner and resulted in lower transportation and energy costs.
The framing may enable Michigan to sidestep some of the challenges other climate lawsuits have faced. Ten states have attempted to hold Big Oil accountable for climate impacts, mostly by arguing that the industry concealed the harms their products would cause. One suit filed by the City of New York has been dismissed, and many others have been delayed due to arguments over whether the proceedings belong in state or federal court, and haven’t yet gotten to the substance of the claims. Michigan’s tactic “maybe speeds up getting to the merits of the case,” Margaret Barry, a climate litigation fellow at Columbia University’s Sabin Center for Climate Change Law, told me, “because those jurisdictional issues aren’t going to be part of the court’s review.”
The fossil fuel industry’s primary defense in these suits has been that cities and states cannot fault oil companies for greenhouse gas emissions because regulating those emissions is the job of the federal government, per the Clean Air Act. Making the case about competition may “avoid arguments about whether this lawsuit is really about regulation,” Rachel Rothschild, an assistant professor of law at the University of Michigan, told me.
The biggest hurdle Michigan will face is proving the existence of a coordinated plot. Geoffrey Kozen, a partner at the law firm Robins Kaplan who works on antitrust cases, told me that companies in these kinds of suits tend to argue that they were simply reacting independently to the same market pressures and responding as any rational market actor would.
There are two main ways for a plaintiff to overcome that kind of argument, Kozen explained. In rare cases, there is a smoking gun — a memo that all of the parties signed saying they were going to act together, for example. More often, attorneys attempt to demonstrate a combination of “parallel conduct,” i.e., showing that all of the parties did the same thing, and “plus factors,” or layers of evidence that make it more likely that there was some kind of underlying agreement.
According to Michigan’s lawsuit, the collusion story in this case goes like this. In 1979, the American Petroleum Institute started a group called the CO2 and Climate Task Force. By that time, Exxon had come to understand that fossil fuel consumption was warming the planet and would cause devastation costing trillions of dollars. The company’s scientists had concluded that cleaner alternatives to fossil fuels would have to make up an increasing amount of the world’s energy if such effects were to be avoided.
“A self-interested and law-abiding rational firm would have used this insight to innovate and compete in the energy market by offering superior and cheaper energy products to consumers,” the complaint says. Michigan alleges that instead, Exxon shared its findings with the other companies in the task force and conspired with them to suppress clean alternatives to fossil fuels. They worked together to “synchronize assessments of climate risks, monitor each other’s scientific and industry outlooks, align their responses to competitive threats, and coordinate their efforts to suppress technologies likely to displace gasoline or other fossil fuels through collusion rather than competition,” according to the complaint.
Michigan’s lawyers point to evidence showing that the named companies shut down internal research programs, withheld products from the market, and used their control of patents to stifle progress away from fossil fuels. The companies were all early leaders in developing clean technologies — with innovations in rechargeable batteries, hybrid cars, and solar panels — but began to sabotage or abandon those efforts after the formation of the task force, the lawsuit alleges.
The case will likely turn on whether the judge finds it credible that these actions would have been against the companies’ self-interest had they not known their peers would be doing the same thing, Kozen told me.
“The actions differ between defendants. They are over a wide range of time periods. And so the question is, is that pursuant to an actual agreement? Or is it pursuant to a bunch of oil executives who are all thinking in similar ways?” he said. “I think that’s going to be the number one point where success or failure is probably going to tip.”
Another challenge for Michigan will be to prove what the world would have looked like had this collusion not taken place. In the parlance of antitrust, this is known as the “but-for world.” Without the Big Oil conspiracy, the lawsuit says, electric vehicles would be “a common sight in every neighborhood,” there would be ubiquitous “reliable and fast chargers,” and renewable energy would be “supplied at scale.” It argues that economic models show that Michigan’s energy prices would also have been significantly lower. While such arguments are common in antitrust cases, it’s a lot more difficult to quantify the effects of stifled innovation than something more straightforward like price fixing.
The companies, of course, reject Michigan’s narrative. A spokeswoman for Exxon told the New York Times it was “yet another legally incoherent effort to regulate by lawsuit.”
If the state can gather enough plausible evidence of harm, however, it may be able to get past the companies’ inevitable motion to dismiss the case and on to discovery. While the case is built on heaps of internal emails and leaked memos that have been made public over the years through congressional investigations, who knows how much of the story has yet to be revealed.
“It’s, in my experience, almost impossible, if someone is actually a member of a cartel, to hide all the evidence,” said Kozen. “Whatever it is, it always comes out.”