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New data provided exclusively to Heatmap shows just how complicated it is to get money where it needs to go.

By the numbers, a new federal program designed to give low-income communities access to renewable energy looks like a smashing success. According to data provided exclusively to Heatmap, in its first year, the Low-Income Communities Bonus Credit Program steered nearly 50,000 solar projects to low-income communities and tribal lands, which are together expected to produce more than $270 million in annual energy savings.
But those topline numbers don’t say anything about who will actually see the savings, or how much the projects will benefit households that have historically been left behind. In reality, the majority of the projects — about 98% — were allocated funding simply for being located in low-income communities, with no hard requirement to deliver energy or financial savings to low-income residents.
A closer look at the data reveals a more complicated success story. While the program did make some clear strides in bridging the solar inequality gap, other factors — including the language in the law that created it — are also holding it back.
The Low-Income Communities Bonus Credit Program came out of the Inflation Reduction Act in August 2022. Though the goal is to increase solar access for low-income households, it’s not actually a tax credit for low income households. It’s for small wind and solar developers — and beginning in 2025, developers of other types of clean energy — whose projects meet certain criteria.
The law caps the total amount of energy the program can support at 1.8 gigawatts per year, and developers have to apply and get their project approved in order to claim funds. To be eligible, a project must produce less than 5 megawatts of power and fall under one of four categories: It must be located in a low-income community, be built on Indian land, be part of an affordable housing development, or distribute at least half its power (and guaranteed bill savings) to low-income households. The first two categories qualify for a 10% credit; the second two, which stipulate that at least some financial benefits go to low-income residents, qualify for 20%. In both cases, the credit can be stacked on top of the baseline 30% tax credit for clean energy projects that meet labor standards, meaning it could slash the cost of building a small solar or wind farm in half.
Each of these provisions has the potential to address at least some of the barriers disadvantaged communities face in accessing clean energy. Low-income homeowners may not have the money for a down payment for rooftop solar or the credit to find financing, for instance. But by giving developers a tax credit for projects located in low-income communities, solar leasing programs, in which homeowners lease panels from a third party in exchange for energy bill savings, now have an incentive to expand into these neighborhoods, and potentially offer lower lease rates. The program helped fund nearly 48,000 residential solar projects in the first year.
Tribal lands, meanwhile, account for more than 5% of solar generation potential in the U.S., but are still a largely untapped resource, for reasons including lack of representation in utility regulatory processes, complex land ownership structures, and limited tribal staff capacity. The program gives outside developers additional incentive to work through the challenges, and it also earmarks funds for tribe-owned development. Crucially, the IRA also opened the door for tribes, as well as other tax-exempt entities, to utilize clean energy incentives and receive a direct payment equal to the tax credits. The program supported 96 solar projects on tribal lands in the first year.
The third category attempts to overcome the famous “split incentive” problem for low-income renters whose landlords have little reason to spend money on a solar project that primarily benefits tenants. The program helped finance 805 solar projects on low-income residential buildings, where the developers are required to distribute at least 50% of the energy savings equitably among tenants.
Lastly, while renters in some states can subscribe to community solar projects, which offer utility bill credits in exchange for a small subscription fee, the subscriptions can be scooped up by wealthier customers if there’s no low-income requirement. The program sponsored 319 community solar projects where at least half the capacity had to go to low-income residents and offer at least 20% off their bills.
U.S. Deputy Secretary of the Treasury Wally Adeyemo declared the program a success. “These investments are already lowering costs, protecting families from energy price spikes, and creating new opportunities in our clean energy future,” he said.
Despite overwhelming demand during the four-month application period, however, the program ended up with capacity to spare. Although applications totaled more than 7 gigawatts, ultimately, the Department approved just over 49,000 projects equal to about 1.4 gigawatts, or roughly enough to power 200,000 average households. All of it was solar.
The gap between applications and awarded projects has to do with the program’s design. The Treasury divided the 1.8 gigawatt cap between the four categories, setting maximum amounts that could be awarded for each one. Within the four categories, the awards were further divided, with half set aside for applicants that met additional ownership or geographic criteria, such as tribal-owned companies, tax-exempt entities, or projects sited in areas with especially high energy costs relative to incomes.
For example, 200 megawatts were earmarked for Indian lands, with half reserved for applicants meeting those additional criteria, but only 40 megawatts were awarded. The fourth category, meanwhile, which was designed to encourage community solar development, was oversubscribed.
Since tax data is confidential, the Treasury Department could not share much detail about these projects, including where, exactly, they were, who developed them, or who will benefit from them. A map overview shows a concentration of awards across the sunbelt, with Illinois, New York, Maine, Massachusetts, and Puerto Rico also seeing a lot of uptake.

I reached out to more than a dozen nonprofits, tribal organizations, and other groups who advocate for or develop clean energy projects benefiting low-income communities to find examples of what the program was actually funding. The first person I was connected with was Richard Best, the director of capital projects and planning for Seattle Public Schools, who got a 10% tax credit for solar arrays on two new schools under construction in low-income neighborhoods. While the school system already planned to put solar on these schools, Best said the tax credits helped offset increased construction costs due to supply chain interruptions, preventing them from having to make compromises on design elements like classroom size.
“It's not insignificant,” he told me. “The solar array at Rainier Beach High School is in excess of a million dollars — just the rooftop solar array. That's $400,000 [in tax credits]. So these are significant dollars that we're receiving, and we're very appreciative.”
Jody Lincoln, an affordable housing development officer for the nonprofit ACTION-Housing in Pittsburgh, Pennsylvania, got a 10% tax credit to add solar to a former YMCA that the group recently converted to a 74-unit apartment building. The single room occupancy rental units serve men who are coming out of homelessness or incarceration. Lincoln told me the building operates “in the gray,” and that any cost saving measures they can make, including the energy savings from the solar array, enable it to continue to operate as affordable housing. When I asked if they could have built the solar project without access to the IRA’s tax credits, she didn’t hesitate: “No.”
These two examples show the program has potential to deliver benefits to low-income communities, even in cases where the energy savings aren’t going directly to low-income residents.
I also spoke with Alexandra Wyatt, the managing policy director and counsel at the nonprofit solar company Grid Alternatives. She told me Grid partnered with for-profit solar developers, such as the national solar company SunRun, who were approved for the tax credit bonus for rooftop solar lease projects on low-income single-family homes. In these cases, Grid helped pull together other sources of funding like state incentives for projects in disadvantaged communities to pre-pay the leases so that the homeowners could more fully benefit from the energy bill savings.
It’s unlikely that all of the nearly 48,000 residential rooftop solar projects in low-income communities that were approved for the credit in the first year had such virtuous outcomes. It’s also possible that projects installed on wealthier homeowners’ roofs in gentrifying neighborhoods were subsidized. In an email to me, a Treasury spokesperson said the Department recognizes that “simply being in a low-income community does not mean low-income households are being served,” and that it was required by statute to include this category. It was still the agency’s decision, however, to allocate such a large portion of the awards, 700 megawatts, to this category — a decision that some public comments on the program disagreed with.
Wyatt applauded the Treasury and the Department of Energy, which oversees the application process, for doing “an admirable job on a tight timeframe with a challenging program design handed to them by Congress.” She’s especially frustrated by the 1.8 gigawatt cap, which none of the other renewable energy tax credits have, and which changes it into a competitive grant that’s more burdensome both for developers and for the agencies. It adds an element of uncertainty to project finance, she said, since developers have to wait to see if their application for the credit was approved.
Wendolyn Holland, the senior advisor for policy, tax and government relations at the Alliance for Tribal Clean Energy told me there was tons of interest among indigenous communities and tribal clean energy developers in taking advantage of the IRA programs, but it wasn’t really happening. Holland cited challenges for tribes reaching the stage of “commercial readiness” required to apply for federal funding. Tribal developers have also said they are limited by the lack of transmission on tribal lands. When I asked the Treasury about the paltry number of projects on Indian Lands, a spokesperson said it was not for lack of trying. The Department and other federal agencies have conducted webinars and other forms of outreach, they said, through which they’ve heard that many tribes are struggling to access capital for energy projects, and that development on Indian lands has “unique challenges due to the history of allotment of Indian lands and status of some land as federal trust land.”
Holland is optimistic that things will change — in December, Biden issued an executive order committing to making it easier for tribes to access federal funding. The Alliance also recently petitioned the Federal Energy Regulatory Commission to address barriers for tribal energy development in its new rules that are supposed to get more transmission built.
The unallocated capacity from 2023 was carried over to the next year’s round of funding, so it wasn’t lost. But a dashboard tracking the second year of the program looks like it's following a similar pattern. While the community solar-oriented category, which was increased to allow for 900 megawatts, is nearly filled up, the tribal Lands category, which kept its 200 megawatt cap, has received applications to develop less than a sixth of that.
Wyatt said that so far, she does think the bonus credit has been successful in spurring good projects that might not otherwise have happened. Still, it will probably take a few years before it will be possible to assess how well it’s working. The good news is, as long as it doesn’t get repealed, the program could run for up to eight more years, leaving plenty of time to improve things. It’s already set to change in one key way. Beginning in 2025, it becomes tech-neutral, meaning that developers of small hydroelectric, geothermal heating or power, or nuclear projects, will be able to apply. (When asked why no wind projects were approved to date, a spokesperson for the Treasury said taxpayer privacy rules meant it couldn’t comment on applications, but they added that wind projects tend to be larger than 5 megawatts and take longer to develop.)
One thing is for sure, despite the heavy administrative burden of screening tens of thousands of applications, the agencies involved are clearly committed to implementing the program.
“I’m definitely pleased that they managed to get the program up and running as quickly as they did,” Wyatt told me. “I mean, it's kind of lightning speed for the IRS.”
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Plus more insights from Heatmap’s latest event Washington, D.C.
At Heatmap’s event, “Supercharging the Grid,” two members of the House of Representatives — a California Democrat and a Colorado Republican — talked about their shared political fight to loosen implementation of the National Environmental Policy Act to accelerate energy deployment.
Representatives Gabe Evans and Scott Peters spoke with Heatmap’s Robinson Meyer at the Washington, D.C., gathering about how permitting reform is faring in Congress.
“The game in the 1970s was to stop things, but if you’re a climate activist now, the game is to build things,” said Peters, who worked as an environmental lawyer for many years. “My proposal is, get out of the way of everything and we win. Renewables win. And NEPA is a big delay.”
NEPA requires that the federal government review the environmental implications of its actions before finalizing them, permitting decisions included. The 50-year-old environmental law has already undergone several rounds of reform, including efforts under both Presidents Biden and Trump to remove redundancies and reduce the size and scope of environmental analyses conducted under the law. But bottlenecks remain — completing the highest level of review under the law still takes four-and-a-half years, on average. Just before Thanksgiving, the House Committee on Natural Resources advanced the SPEED Act, which aims to ease that congestion by creating shortcuts for environmental reviews, limiting judicial review of the final assessments, and preventing current and future presidents from arbitrarily rescinding permits, subject to certain exceptions.
Evans framed the problem in terms of keeping up with countries like China on building energy infrastructure. “I’ve seen how other parts of the world produce energy, produce other things,” said Evans. “We build things cleaner and more responsibly here than really anywhere else on the planet.”
Both representatives agreed that the SPEED Act on its own wouldn’t solve all the United States’ energy issues. Peters hinted at other permitting legislation in the works.
“We want to take that SPEED Act on the NEPA reform and marry it with specific energy reforms, including transmission,” said Peters.
Next, Neil Chatterjee, a former Commissioner of the Federal Energy Regulatory Commission, explained to Rob another regulatory change that could affect the pace of energy infrastructure buildout: a directive from the Department of Energy to FERC to come up with better ways of connecting large new sources of electricity demand — i.e. data centers — to the grid.
“This issue is all about data centers and AI, but it goes beyond data centers and AI,” said Chatterjee. “It deals with all of the pressures that we are seeing in terms of demand from the grid from cloud computing and quantum computing, streaming services, crypto and Bitcoin mining, reshoring of manufacturing, vehicle electrification, building electrification, semiconductor manufacturing.”
Chatterjee argued that navigating load growth to support AI data centers should be a bipartisan issue. He expressed hope that AI could help bridge the partisan divide.
“We have become mired in this politics of, if you’re for fossil fuels, you are of the political right. If you’re for clean energy and climate solutions, you’re the political left,” he said. “I think AI is going to be the thing that busts us out of it.”
Updating and upgrading the grid to accommodate data centers has grown more urgent in the face of drastically rising electricity demand projections.
Marsden Hanna, Google’s head of energy and dust policy, told Heatmap’s Jillian Goodman that the company is eyeing transmission technology to connect its own data centers to the grid faster.
“We looked at advanced transition technologies, high performance conductors,” said Hanna. “We see that really as just an incredibly rapid, no-brainer opportunity.”
Advanced transmission technologies, otherwise known as ATTs, could help expand the existing grid’s capacity, freeing up space for some of the load growth that economy-wide electrification and data centers would require. Building new transmission lines, however, requires permits — the central issue that panelists kept returning to throughout the event.
Devin Hartman, director of energy and environmental policy at the R Street Institute, told Jillian that investors are nervous that already-approved permits could be revoked — something the solar industry has struggled with under the Trump administration.
“Half the battle now is not just getting the permits on time and getting projects to break ground,” said Hartman. “It’s also permitting permanence.”
This event was made possible by the American Council on Renewable Energy’s Macro Grid Initiative.
On gas turbine backorders, Europe’s not-so-green deal, and Iranian cloud seeding
Current conditions: Up to 10 inches of rain in the Cascades threatens mudslides, particularly in areas where wildfires denuded the landscape of the trees whose roots once held soil in place • South Africa has issued extreme fire warnings for Northern Cape, Western Cape, and Eastern Cape • Still roiling from last week’s failed attempt at a military coup, Benin’s capital of Cotonou is in the midst of a streak of days with temperatures over 90 degrees Fahrenheit and no end in sight.

Exxon Mobil Corp. plans to cut planned spending on low-carbon projects by a third, joining much of the rest of its industry in refocusing on fossil fuels. The nation’s largest oil producer said it would increase its earnings and cash flow by $5 billion by 2030. The company projected earnings to grow by 13% each year without any increase in capital spending. But the upstream division, which includes exploration and production, is expected to bring in $14 billion in earnings growth compared to 2024. The key projects The Wall Street Journal listed in the Permian Basin, Guyana and at liquified natural gas sites would total $4 billion in earnings growth alone over the next five years. The announcement came a day before the Department of the Interior auctioned off $279 million of leases across 80 million acres of federal waters in the Gulf of Mexico.
Speaking of oil and water, early Wednesday U.S. armed forces seized an oil tanker off the coast of Venezuela in what The New York Times called “a dramatic escalation in President Trump’s pressure campaign against Nicolás Maduro.” When asked what would become of the vessel's oil, Trump said at the White House, “Well, we keep it, I guess.”
The Federal Reserve slashed its key benchmark interest rate for the third time this year. The 0.25 percentage point cut was meant to calibrate the borrowing costs to stay within a range between 3.5% and 3.75%. The 9-3 vote by the central bank’s board of governors amounted to what Wall Street calls a hawkish cut, a move to prop up a cooling labor market while signaling strong concerns about future downward adjustments that’s considered so rare CNBC previously questioned whether it could be real. But it’s good news for clean energy. As Heatmap’s Matthew Zeitlin wrote after the September rate cut, lower borrowing costs “may provide some relief to renewables developers and investors, who are especially sensitive to financing costs.” But it likely isn’t enough to wipe out the effects of Trump’s tariffs and tax credit phaseouts.
GE Vernova plans to increase its capacity to manufacture gas turbines by 20 gigawatts once assembly line expansions are completed in the middle of next year. But in a presentation to investors this week, the company said it’s already sold out of new gas turbines all the way through 2028, and has less than 10 gigawatts of equipment left to sell for 2029. It’s no wonder supersonic jet startups, as I wrote about in yesterday’s newsletter, are now eyeing a near-term windfall by getting into the gas turbine business.
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The European Union will free more than 80% of the companies from environmental reporting rules under a deal struck this week. The agreement between EU institutions marks what Politico Europe called a “major legislative victory” for European Commission President Ursula von der Leyen, who has sought to make the bloc more economically self-sufficient by cutting red tape for business in her second term in office. The rollback is also a win for Trump, whose administration heavily criticized the EU’s green rules. It’s also a victory for the U.S. president’s far-right allies in Europe. The deal fractured the coalition that got the German politician reelected to the EU’s top job, forcing her center-right faction to team up with the far right to win enough votes for secure victory.
Ravaged by drought, Iran is carrying out cloud-seeding operations in a bid to increase rainfall amid what the Financial Times clocked as “the worst water crisis in six decades.” On Tuesday, Abbas Aliabadi, the energy minister, said the country had begun a fresh round of injecting crystals into clouds using planes, drones, and ground-based launchers. The country has even started developing drones specifically tailored to cloud seeding.
The effort comes just weeks after the Islamic Republic announced that it “no longer has a choice” but to move its capital city as ongoing strain on water supplies and land causes Tehran to sink by nearly one foot per year. As I wrote in this newsletter, Iranian President Masoud Pezeshkian called the situation a “catastrophe” and “a dark future.”
The end of suburban kids whiffing diesel exhaust in the back of stuffy, rumbling old yellow school buses is nigh. The battery-powered bus startup Highland Electric Fleets just raised $150 million in an equity round from Aiga Capital Partners to deploy its fleets of buses and trucks across the U.S., Axios reported. In a press release, the company said its vehicles would hit the streets by next year.
Cities across the state are adopting building codes that heavily incentivize homeowners to make the switch.
A quiet revolution in California’s building codes could turn many of the state’s summer-only air conditioners into all-season heat pumps.
Over the past few months, 12 California cities have adopted rules that strongly incentivize homeowners who are installing central air conditioning or replacing broken AC systems to get energy-efficient heat pumps that provide both heating and cooling. Households with separate natural gas or propane furnaces will be allowed to retain and use them, but the rules require that the heat pump becomes the primary heating system, with the furnace providing backup heat only on especially cold days, reducing fossil fuel use.
These “AC2HP” rules, as proponents call them, were included in a routine update of California building codes in 2024. Rather than make it mandatory, regulators put the heat pump rule in a package of “stretch codes” that cities could adopt as they saw fit. Moreno Valley, a city in Riverside County, east of Los Angeles, was the first to pass an ordinance adopting the AC2HP code back in August. A steady stream of cities have followed, with Los Gatos and Portola Valley joining the party just last week. Dylan Plummer, a campaign advisor for Sierra Club's Building Electrification Campaign, expects more will follow in the months to come — “conversations are moving” in Los Angeles and Sacramento, as well, he told me.
“This is a consumer protection and climate policy in one,” he said. As California gets hotter, more households in the state are getting air conditioners for the first time. “Every time a household installs a one-way AC unit, it’s a missed opportunity to install a heat pump and seamlessly equip homes with zero-emission heating.”
This policy domino effect is not unlike what happened in California after the city of Berkeley passed an ordinance in 2019 that would have prohibited new buildings from installing natural gas. The Sierra Club and other environmental groups helped lead more than 70 cities to follow in Berkeley’s footsteps. Ultimately, a federal court overturned Berkeley’s ordinance, finding that it violated a law giving the federal government authority over appliance energy usage. Many of the other cities have since suspended their gas bans.
Since then, however, California has adopted state-wide energy codes that strongly encourage new buildings to be all-electric anyway. In 2023, more than 70% of requests for service lines from developers to Pacific Gas & Electric, the biggest utility in the state, were for new all-electric buildings. The AC2HP codes tackle the other half of the equation — decarbonizing existing buildings.
A coalition of environmental groups including the Sierra Club, Earthjustice, and the Building Decarbonization Coalition are working to seed AC2HP rules throughout the state, although it may not be easy as cost-of-living concerns grow more politically charged.
Even in some of the cities that have adopted the code, members of the public worried about the expense. In Moreno Valley, for instance, a comparatively low-income community, six out of the seven locals who spoke on the measure at a meeting in August urged elected officials to reject it, and not just because of cost — some were also skeptical of the technology.
In Glendale, a suburb of Los Angeles which has more socioeconomic diversity, all four commenters who spoke also urged the council to reject the measure. In addition to cost concerns, they questioned why the city would rush to do something like this when the state didn’t make it mandatory, arguing that the council should have held a full public hearing on the change.
In Menlo Park, on the other hand, which is a wealthy Silicon Valley suburb, all five speakers were in support of the measure, although each of them was affiliated with an environmental group.
Heat pumps are more expensive than air conditioners by a couple of thousands of dollars, depending on the model. With state and local incentives, the upfront cost can often be comparable. When you take into account the fact that you’re moving from using two appliances for heating and cooling to one, the equipment tends to be cheaper in the long run.
The impacts of heat pumps on energy bills are more complicated. Heat pumps are almost always cheaper to operate in the winter than furnaces that use propane or electric resistance. Compared to natural gas heating, though, it mostly depends on the relative cost of gas versus electricity. Low-income customers in California have access to lower electricity rates that make heat pumps more likely to pencil out. The state also recently implemented a new electricity rate scheme that will see utilities charge customers higher fixed fees and lower rates per kilowatt-hour of electricity used, which may also help heat pump economics.
Matthew Vespa, an senior attorney at Earthjustice described the AC2HP policy as a way to help customers “hedge against gas rates going up,” noting that gas prices are likely to rise as the U.S. exports more of the fuel as liquified natural gas, and also as gas companies lose customers. “It’s really a small incremental cost to getting an AC replaced with a lot of potential benefits.”
The AC2HP idea dates back to a 2021 Twitter thread by Nate Adams, a heat pump installer who goes by the handle “Nate the House Whisperer.” Adams proposed that the federal government should pay manufacturers to stop producing air conditioners and only produce heat pumps. Central heat pumps are exactly the same as air conditioners, except they provide heating in addition to cooling thanks to “a few valves or ~$100-300 in parts,” Adam said at the time.
The problem is, most homeowners and installers are either unfamiliar with the technology or skeptical of it. While heat pumps have been around for decades and are widespread in other parts of the world, especially in Asia, they have been slower to take off in the United States. One reason is the common misconception that they don’t work as well as furnaces for heating. Part of the issue is also that furnaces themselves are less expensive, so heat pumps are a tougher sell in the moment when someone’s furnace has broken down. Adams’ policy pitch would have given people no choice but to start installing heat pumps — even if they didn’t use them for heating — getting a key decarbonization technology into homes faster than any rebate or consumer incentive could, and getting the market better acquainted with the tech.
The idea gained traction quickly. An energy efficiency research and advocacy organization called CLASP published a series of reports looking at the potential cost and benefits, and a manufacturer-focused heat pump tax credit even made its way into a bill proposal from Senator Amy Klobuchar in the runup to the 2022 Inflation Reduction Act. While rules that target California homeowners obviously won’t have the nation-wide effect that Adams’ would have, they still have the potential to send a strong market signal, considering California is the fifth largest economy in the world.
The AC2HP codes, which start going into effect next year, will help smooth the road to another set of building electrification rules that will apply in some parts of the state beginning in 2029. At that point, households in the Bay Area will be subject to new air quality standards that require all newly installed heating equipment to be zero-emissions — in other words, if a family’s furnace breaks down, they’ll have to replace it with a heat pump. State regulators are developing similar standards that would apply statewide starting in 2035. The AC2HP rule ensures that if that same family’s air conditioner breaks between now and then, they won’t end up with a new air conditioner, which would eventually become redundant.
The rule is just one of a bunch of new tools cities are using to decarbonize existing buildings. San Francisco, for example, adopted an even stricter building code in September that requires full, whole-home electrification when a building is undergoing a major renovation that includes upgrades to its mechanical systems. Many cities are also adopting an “electrical readiness” code that requires building owners to upgrade their electrical panels and add wiring for electric vehicle charging and induction stoves when they make additions or alterations to an existing building.
To be clear, homeowners in cities with AC2HP laws will not be forced to buy heat pumps. The code permits the installation of an air conditioner, but requires that it be supplemented with efficiency upgrades such as insulating air ducts and attics — which may ultimately be more costly than the heat pump route.
“I don’t think most people understand that these units exist, and they’re kind of plug and play with the AC,” said Vespa.