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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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The more Hurricanes Helene and Milton we get, the harder it is to ignore the need.
As the southeastern U.S. recovers from hurricanes Helene and Milton, the destruction the storms have left behind serves to underline the obvious: The need for technologies that support climate change adaptation and resilience is both real and urgent. And while nearly all the money in climate finance still flows into mitigation tech, which seeks to lower emissions to alleviate tomorrow’s harm, at long last, there are signs that interest and funding for the adaptation space is picking up.
The emergence and success of climate resilience advisory and investment firms such as Tailwind Climate and The Lightsmith Group are two signs of this shift. Founded just last year, Tailwind recently published a taxonomy of activities and financing across the various sectors of adaptation and resilience solutions to help clients understand opportunity areas in the space. Next year, the firm’s co-founder Katie MacDonald told me, Tailwind will likely begin raising its first fund. It’s already invested in one company, UK-based Cryogenx, which makes a portable cooling vest to rapidly reduce the temperature of patients experiencing heatstroke.
As for Lightsmith, the firm held the final close of its $186 million growth equity fund for climate adaptation solutions in 2022, which co-founder and managing director Jay Koh told me is one of the first, if not the first fund with a climate resilience focus. As Koh sees it, the evolution of climate adaptation and resilience technologies can be broken up into three stages, the first being “reactive and incremental.” That’s largely where we’re at right now, he said — think rebuilding a dam higher after it’s been breached in a flood, or making a firebreak broader after a destructive wildfire. Where he’s seeing interesting companies emerge, though, is in the more proactive second stage, which often involves anticipating and preparing for extreme weather events. “Let’s do a lot more data and analytics ahead of time. Let’s deploy more weather satellites. Let’s look at deploying artificial intelligence and other technologies to do better forecasting,” Koh explained to me.
The third and final stage, he said, could be categorized as “systemic or transcendent adaptation,” which involves systems-level changes as opposed to incremental improvements. Source Global, one of Lightsmith’s portfolio companies which makes solar-powered hydropanels that produce affordable drinking water, is an example of this. As Koh told me, “It’s not simply improving the efficiency of desalination filters by 5% or 10%. It’s saying, listen, we’re going to pull water out of the air in a way that we have never done before.”
But while the activity and interest around adaptation tech may be growing, the money just isn’t there yet. “We’re easily $50 [billion] to $60 billion below where we need to be today,” MacDonald told me. “And you know, we’re on the order of around $150 [billion] to $160 billion below where we need to be by 2030.” Everyone else I spoke with echoed the sentiment. “The latest statistics are that less than 5% of total climate finance tracked on planet Earth is attributable to adaptation and climate resilience,” Koh said. “Of that, less than 2% is private investment.”
There’s a few reasons why early-stage investors especially may be hesitant to throw their weight behind adaptation tech despite the clear need in the market. Amy Francetic, co-founder and managing general partner at Buoyant Ventures, which focuses on early-stage digital solutions for climate risk, told me that the main customer for adaptation solutions is often a government entity. “Municipalities and other government contracts, they’re hard to win, they’re slow to win, and they don’t pay that much, either, which is the problem.” Francetic told me. “So it’s not a great customer to have.”
One of Buoyant’s portfolio companies, the now defunct StormSensor, reinforced this lesson for Francetic. The company used sensors to track water flow within storm and sewage systems to prevent flooding and was able to arrange pilot projects with plenty of water agencies — but few of them converted into paying contracts. “The municipalities were willing to spend money on an experiment, but not so many of them had a larger budget.” Francetic told me. The same dynamic, she said, is also at play in the utility industry, where you often hear about new tech succumbing to “death by pilot.”
It’s not all doom and gloom, though, when it comes to working with larger, risk-averse agencies. AiDash, another of Lightsmith’s portfolio companies that uses artificial intelligence to help utilities assess and address wildfire risk, has five utility partnerships, and earlier this year raised $58.5 million in an oversubscribed Series C round. Francetic and MacDonald both told me they’re seeing the conversation around climate adaptation evolve to include more industry stakeholders. In the past, Francetic said, discussing resilience and adaptation was almost seen as a form of climate doomerism. “They said, oh, why are you doing that? It shows that you’re giving up.” But now, MacDonald told me that her experience at this year’s climate week in New York was defined by productive conversations with representatives from the insurance industry, banking sector, and venture capital arena about injecting more capital into the space.
Bill Clerico, the founder and managing partner of the venture firm Convective Capital, is also deeply familiar with the tricky dynamics of climate adaptation funding. Convective, founded in 2022, is solely dedicated to wildfire tech solutions. The firm’s portfolio companies span a range of technologies that address suppression, early identification, prevention, and insurance against damages, and are mainly looking to work with utilities, governments, and insurance companies. When I talked to Clerico back in August, he (understatedly) categorized these establishments as “not necessarily the most fast-moving or innovative.” But the bleak silver lining, he told me, is that extreme weather is forcing them to up their tempo. “There is so much destruction happening so frequently that it’s forcing a lot of these institutions to think about it totally differently and to embrace newer, more novel solutions — and to do it quickly.”
People, it seems, are starting to get real. But investors and startups alike are also just beginning to define exactly what adaptation tech encompasses and what metrics for success look like when they’re less measurable than, say, the tons of carbon sucked out of the atmosphere via direct air capture, or the amount of energy produced by a fusion reactor.
“Nobody wakes up in the morning and buys a loaf of adaptation. You don’t drive around in an adaptation or live in an adaptation,” Koh noted. “What you want is food, transport, shelter, water that is resilient and adapted to the effects of climate change.” What Koh and the team at Lightsmith have found is that many of the companies working on these solutions are hiding in plain sight. “They call themselves business continuity or water efficiency or agricultural precision technologies or supply chain management in the face of weather volatility,” Koh explained.
In this way, the scope of adaptation technology balloons far beyond what is traditionally climate-coded. Lightsmith recently invested in a Brazil-based digital health company called Beep Saude, which enables patients to get rapid, in-home diagnostics, vaccination services, and infusion therapies. It falls under the umbrella of climate adaptation tech, Koh told me, because rising temperatures, increased rainfall, and deforestation in the country have led to a rapid increase in mosquitoes spreading diseases such as dengue fever and the Zika virus.
Naturally, measuring the efficacy of solutions that span such a vast problem space means a lot of customization. “Your metric might be, how many people have asked for water in a drought-prone area?” MacDonald told me. “And with health, it might be, how many children are safe from wildfire smoke during fire season? And for ecosystems, it might be, how many hectares of ecosystem have been saved as a means to reduce storm surge?” Insurance also brings up a host of additional metrics. As Francetic told me, “we measure things like lives and livelihoods covered or addressed. We measure things like losses covered or underwriting dollars spent on this.”
No matter how you categorize it or measure it, the need for these technologies is not going away. “The drivers of adaptation and climate resilience demand are physics and time,” Koh told me. “Whoever develops climate resilience and adaptation technology will have a competitive advantage over any other company, any other society, and the faster that we can scale it up, and the smarter and more equitable we are about deploying it, the better off we will all be.”
On the Cybercab rollout, methane leaks, and Taylor Swift
Current conditions: England just had its one of its worst crop harvests ever due to extreme rainfall last winter • Nevada and Arizona could see record-breaking heat today, while freeze warnings are in effect in four northeastern states • The death toll from Hurricane Milton has climbed to 16.
Tesla unveiled a prototype of its “Cybercab” self-driving robotaxi last night at an investor event in California. The 2-seater vehicle has no steering wheel or pedals, and will feature wireless induction charging. CEO Elon Musk said the vehicle will cost less than $30,000, with the goal of starting production by 2027, depending on regulatory approvals. At the same event, Musk unveiled the autonomous “Robovan,” which can carry 20 people.
Tesla
A UN expert group agreed this week on some key rules around carbon markets and carbon crediting. This will be a major topic at COP29 next month, where negotiators will be tasked with deciding how countries can use international carbon markets. As the Financial Timesexplained, a carbon market “would allow governments to claim other countries’ emission cuts towards their own climate targets by trading instruments that represent one tonne of carbon dioxide removed or saved from the atmosphere.” The experts this week said projects seeking carbon credits will have to carry out an extensive risk assessment process aimed at flagging and preventing human rights abuses and environmental harm. The assessment will be reviewed by external auditors.
The first detections from Carbon Mapper’s Tanager-1 satellite are in, just two months after the satellite launched. It spotted a 2.5-mile-long methane plume spewing from a landfill in Pakistan, which Carbon Mapper estimates could be releasing 2,600 pounds of methane per hour. It also identified a methane plume in the oilfields of the Permian Basin in Texas, estimated to be releasing 900 pounds of methane hourly. And it found a carbon dioxide plume over a coal-fired power plant in South Africa releasing roughly 1.3 million pounds of CO2 per hour.
A Permian Basin methane plume.Carbon Mapper
In a press release, the company said the observations were “a preview of what’s to come as Carbon Mapper will leverage Tanager-1 to scale-up emissions observations at unprecedented sensitivity across large areas.”
As the cleanup efforts continue in the southeast after back-to-back hurricanes Helene and Milton devastated the region, pop star Taylor Swift announced she is donating $5 million to relief efforts. Specifically she has given money to a national food bank organization called Feeding America. The charity’s CEO said the funds “will help communities rebuild and recover, providing essential food, clean water, and supplies to people affected by these devastating storms.” Last week country music legend Dolly Parton said she personally donated $1 million to the Mountain Ways Foundation, and then another $1 million through her Dollywood foundation.
AccuWeather estimated that Milton caused up to $180 billion in economic losses, and Helene caused up to $250 billion in losses. Two rapid attribution studies out of Imperial College London found that human-caused climate change could be credited for roughly half the economic damages from the storms. “This analysis clearly shows that our failure to stop burning fossil fuels is already resulting in incredible economic losses,” said Dr. Friederike Otto, co-founder of World Weather Attribution.
In Rhode Island, the Providence City Council passed an amendment this week that bans the construction of new gas stations “while prioritizing the development and installation of electric vehicle charging stations.” That would make Providence the first city on the East Coast to enact such a ban. Mayor Brett Smiley could veto it, but the city council could override a veto with a two-thirds majority, The Boston Globereported. Several towns in California have already banned new gas pumps.
Chiquita has developed a new hybrid banana variety it says is resistant to some fungal diseases that have threatened the future of America’s most popular fruit. The variety is called Yelloway 1.
Chiquita Brands International
It’s known as the 50% rule, and Southwest Florida hates it.
After the storm, we rebuild. That’s the mantra repeated by residents, businesses and elected officials after any big storm. Hurricane Milton may have avoided the worst case scenario of a direct hit on the Tampa Bay area, but communities south of Tampa experienced heavy flooding just a couple weeks after being hit by Hurricane Helene.
While the damage is still being assessed in Sarasota County’s barrier islands, homes that require extensive renovations will almost certainly run up against what is known as the 50% rule — or, in Southwest Florida, the “dreaded 50% rule.”
In flood zone-situated communities eligible to receive insurance from the National Flood Insurance Program, any renovations to repair “substantial damage” — defined as repairs whose cost exceeds 50% of the value of the structure (not the land, which can often be quite valuable due to its proximity to the water) — must bring the entire structure “into compliance with current local floodplain management standards.” In practice, this typically means elevating the home above what FEMA defines as the area’s “base flood elevation,” which is the level that a “100-year-flood” would reach, plus some amount determined by the building code.
The rule almost invites conflict. Because just as much as local communities and homeowners want to restore things to the way they were, the federal government doesn’t want to insure structures that are simply going to get destroyed. On Siesta Key, where Milton made landfall, the base flood elevation ranges from 7 feet to 9 feet, meaning that elevating a home to comply with flood codes could be beyond the means — or at least the insurance payouts — of some homeowners.
“You got a 1952 house that’s 1,400 square feet, and you get 4 feet of water,” Jeff Brandes, a former state legislator and president of the Florida Policy Project, told me on Wednesday, explaining how the rule could have played out in Tampa. “That means new kitchens and new bathrooms, all new flooring and baseboards and drywall to 4 or 5 feet.” That kind of claim could easily run to $150,000, which might well surpass the FEMA threshold. “Now all of the sudden you get into the 50% rule that you have the entire house up to current code levels. But then you have to do another half-a-million above what [insurance] paid you.”
Simple probability calculations show that a 100-year flood (which is really a flood elevation that has a 1-in-100 chance of occurring every year) has a more than 25% chance of occurring during the lifetime of a mortgage. If you browse Siesta Key real estate on Zillow, much of it is given a 100% chance of flooding sometime over the course of a 30-year mortgage, according to data analysis by First Street.
Sarasota County as a whole has around 62,000 NFIP policies with some $16.6 billion in total coverage (although more than 80% percent of households have no flood insurance at all). Considering that flood insurance is required in high-risk areas for federally-backed mortgages and for new homeowners insurance policies written by Florida’s state backed property insurer of last resort, Citizens, FEMA is likely to take a close interest in whether communities affected by Milton and Helene are complying with its rules.
If 2022’s Hurricane Ian is any indication, squabbles over the 50% rule are almost certain to emerge — and soon.
Earlier this year, FEMA told Lee County, which includes Fort Myers and Cape Coral, that it was rescinding the discount its residents and a handful of towns within it receive on flood insurance because, the agency claimed, more than 600 homeowners had violated the 50% rule after Hurricane Ian. Following an outcry from local officials and congressional representatives, FEMA restored the discount.
In their efforts to avoid triggering the rule, homeowners are hardly rogue actors. Local governments often actively assist them.
FEMA had initiated a similar procedure in Lee County the year before, threatening to drop homeowners from the flood insurance program for using possibly inaccurate appraisals to avoid the 50% rule before eventually relenting. The Fort Myers News Press reported that the appraisals were provided by the county, which was deliberately “lowering the amount that residents could use to calculate their repairs or rebuilds” to avoid triggering the rule.
Less than a month after Ian swept through Southwest Florida, Cape Coral advised residents to delay and slow down repairs for the same reason, as the rule there applied to money spent on repairs over the course of a year. Some highly exposed coastal communities in Pinellas County have been adjusting their “lookback rules” — the period over which repairs are totaled to see if they hit the 50% rule — to make them shorter so homeowners are less likely to have to make the substantive repairs required.
This followed similar actions by local governments in Charlotte County. As the Punta Gordon Sun put it, “City Council members learned the federal regulation impacts its homeowners — and they decided to do something about it.” In the Sarasota County community of North Port, local officials scrapped a rule that added up repair costs over a five-year period to make it possible for homeowners to rebuild without triggering elevation requirements.
When the 50% rule “works,” it can lead to the communities most affected by big storms being fundamentally changed, both in terms of the structures that are built and who occupies them. The end result of the rebuilding following Helene and Milton — or the next big storm to hit Florida’s Gulf Coast — or the one after that, and so on — may be wealthier homeowners in more resilient homes essentially serving as a flood barrier for everyone else, and picking up more of the bill if the waters rise too high again.
Florida’s Gulf Coast has long been seen as a place where the middle class can afford beachfront property. Elected officials’ resistance to the FEMA rule only goes to show just how important keeping a lid on the cost of living — quite literally, the cost of legally inhabiting a structure — is to the voters and residents they represent.
Still, said Brandes, “There’s the right way to come out of this thing. The wrong way is to build exactly back what you built before.”