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The New York-based startup aims to create a market for clean energy tax credits.

One of the least-noticed changes in the Inflation Reduction Act may be one of the most important.
For years, the government has encouraged developers, power utilities, and other companies to build clean energy by offering tax credits. But those tax credits were difficult to transfer to other companies, meaning that complicated financial instruments had to be created to allow them to share in the wealth.
The IRA continues to employ tax credits. But for the first time, it allows companies to buy and sell tax credits to each other.
A new crop of startups have appeared to help companies trade these new “transferable” tax credits. One of the largest is Crux, a New York-based startup backed by Andreessen Horowitz and Lowercarbon Capital.
On Tuesday, Crux announced that it has now brought some of the country’s largest energy developers into its fold. Clearway Energy, Intersect Power, Pattern Energy, and Électricité de France (commonly known as EDF) have all made strategic investments in Crux, the company announced. It had not previously disclosed their involvement in January’s $18.2 million Series A round.
“We had an opportunity to bring in some of the leading developers who collectively represent a pipeline of more than 100 gigawatts of power,” Alfred Johnson, Crux’s CEO, told me.
Crux has now raised more than $27 million in capital since its founding early last year. The offshore wind developer Orsted, as well as the energy developers LS Power and Hartree, have previously joined as strategic investors.
Under the Inflation Reduction Act, as in the past, companies can claim money on their taxes by building zero-carbon electricity generation, new factories, buying electric vehicles, and more.
But energy developers and utilities rarely need to use all the tax credits that they generate from their projects. A $30 million solar farm might generate as much as $10 million of tax credits, for instance — far too much for most companies to use in a reasonable amount of time.
That meant that developers had to bring in a third-party firm — usually a bank or another financial institution — that could pay for the privilege of using those tax credits. Before the IRA passed, many clean energy projects were therefore structured as complicated “tax equity” deals, where the bank or tax credit “buyer” owned part of the project so that it could claim its tax credits. About $20 billion in tax equity deals happened last year, according to research from the law firm Norton Rose Fulbright.
The IRA aimed to make that process easier by, in essence, creating a market for tax credits.
Crux estimates that $7 to $9 billion of these new “transferrable tax credits” were sold in that new market last year. It believes that the opportunity will grow rapidly. The advisory firm Evercore has projected that the transferrable tax credit market could exceed $100 billion by 2030.
Crux is not the only company that hopes to capitalize on that burgeoning market, potentially speeding the energy transition at the same time. Basis Climate, another New York-based startup, is also trying to serve as a key platform in the space.
Ilmi Granoff is an expert on climate finance, a senior fellow at the Sabin Center for Climate Law, and an advisor to Basis Climate. “The market is going to be diverse and large enough to support a number of pure play platforms that are specialists in this — and you’re going to have the banks moving in, consultancies, the tax advisors, and more,” Granoff told me. “For those looking for an environmental commodities market that really drives climate change, you can stop looking at the voluntary carbon market and just monetize the tax credit market for carbon solutions. It is going to be a very reliable market, backed by the government.”
Johnson, the Crux chief executive, also pointed to the scale of climate-related investment on the horizon. “We just have to build so much in the next 10 years. The level of infrastructure investments that have happened up to this point — and the scale of what will be built — is really, really dramatic,” Johnson said.
Crux’s product is a standardized platform where developers, utilities, and manufacturing companies can describe and sell their tax credits to buyers.
When a buyer first uses Crux, all tax credits available on the service are presented anonymously. They can then anonymously contact a specific seller. The buyer and seller can gradually reveal information to each other throughout the ensuing negotiation, culminating in a Crux-hosted “data room” where each teams’ accountants and lawyers can trade and view documents relevant to the sale.
“This is not a point and click transaction,” Johnson told me. “These are still complicated transactions with lots of moving pieces, with many underlying documents and lots of stakeholders at the table.” The goal of Crux, he said, is to make these transactions “efficient and standardized.”
The company says it’s already having some success speeding up the average sale. It recently facilitated a deal between an electricity utility, which was selling tax credits, and a Fortune 100 company, which was buying them, in just 22 days, Johnson told me. By contrast, a traditional tax equity deal would take six to nine months to structure and close, he said.
Many of the company’s leaders once helped shape high-level Democratic policy. Johnson, a former White House aide under President Barack Obama, was deputy chief of staff to Treasury Secretary Janet Yellen until 2022. He and Crux’s cofounder, Allen Kramer, previously cofounded the startup Mobilize, which helped organizations manage and recruit volunteers.
William Daley, a former Obama White House chief of staff and Commerce Secretary under President Bill Clinton, joined Crux as a senior advisor last week.
In an interview, Daley told me that — with the defense industry excepted — he could not remember the government investing in a strategic industry the way it is now investing in clean energy. “These are economic decisions that investors are making — they’re not just going out there and doing things that may or may not be financially rewarding,” he told me. “For every dollar the government puts forward in a subsidy or credit, the private sector is investing $5.”
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The two economic booms resemble each other somewhat. But data centers have a far more dire PR problem.
This is an edition of Heatmap Daily, an evening review of the day’s news written by our executive editor. Sign up for it here.
In Pennsylvania, the governor required data center developers to comply with new restrictions. Texas began its mandatory audit for grid-connected data centers. And Nebraska limited tax incentives for data centers and started a new task force.
In Wisconsin’s governor race, candidates began posturing over who will treat data centers the toughest; in Michigan’s Senate race, the GOP candidate Mike Rogers called for a statewide moratorium on them. A Politico analysis found that of the more than 100 campaign ads mentioning data centers this election, none have put the technology in a positive light.
It makes sense, then, that when Heatmap published its most recent polling on data centers — finding that 75% of Americans oppose their local development — it seemed to blow up. But there’s one aspect of that polling that I want to discuss here, because I think it has been underacknowledged.
It’s this: According to our polling, data centers are about as unpopular in urban areas as rural areas. They’re slightly less unpopular in the suburbs.
The differences in disapproval, to be clear, aren’t enormous. Local data center development is 63 points underwater in rural areas and 60 points underwater in urban areas. That’s close enough to our poll’s 2.3% margin of error that it may just be noise. Even in the suburbs, data center development is 58 points underwater — a small distinction.
But it represents a big shift from the political geography of recent decades, where cities and rural areas have tended to disagree profoundly over policy. Since the 2000 election or so, cities have elected Democrats, rural areas have picked Republicans, and then the parties have fought over the suburbs.
Data centers, however, appear to unite these two partisan bases against some of the country’s largest companies — and some of our political systems’ odder ducks. Heatmap’s polling earlier this year found that AI YIMBYs tend to be urban, largely Trump-voting men who are optimistic about technology. And in March, the Republican pollster Echelon Insights found that some of data centers’ biggest fans were MAGA Republicans with graduate degrees living in cities.
These results help explain why Republicans have suddenly turned on a dime against data centers: Their base has rejected it. As a political reporter friend put it to me, after looking at our data, you don’t want to be on the wrong side of a trend that’s uniting college-educated and non-college-educated Americans.
In trying to understand this transition, I’ve tried to think about other technologies that have undergone similar investment booms in recent American history. One oft-made comparison is fracking, which expanded quickly across the country in the 2010s. Many commentators — myself included — have suggested that data centers may follow fracking’s example, where blue states ban a new type of economic activity and red states welcome it. The red (and sometimes purple) states then get to reap much of the resulting economic growth — and the tax receipts — while everyone has to deal with the emissions. The revelation that data centers are driving a new natural gas boom only deepens the link.
But there’s one big problem with that analogy: Fracking was never this unpopular. While fracking has rarely commanded a large majority of support among the mass public, its popular nadir came in spring 2020, when 60% of Americans told Pew that they opposed an expansion of fracking. (Its popularity began to recover after President Biden took office — a classic case of thermostatic public opinion.)
In every poll that we could find at Heatmap, too, expanding fracking always commanded a majority of Republican support. Throughout the 2010s and 2020s, rank-and-file Republicans have wanted to “drill, baby, drill.” But they don’t seem to want to “compute, baby, compute.” And that means — among other things — energy and climate analysts like me need to find another analogy.
Temperatures are high, but electricity drama is low.
The Texas summer isn’t over — highs today are forecasted to be at or above 100 degrees Fahrenheit in much of the state — but so far the state’s grid has held up.
In the past month or so, Texas’ grid has hit a number of generation records, according to data collected by Grid Status. Those include its highest load ever (91,308 megawatts on July 22), its highest level of renewables generation (53,000 megawatts on August 13), maximum wind output (29,000 megawatts on June 29) and, most notably, its maximum battery discharge (some 13,256 megawatts earlier this week, on August 23, at 7:45 p.m.).
And all the while, the grid has been stable, which is by no means guaranteed in Texas.
The state’s grid operator, ERCOT, has not issued a single “conservation appeal” so far this summer, asking Texans to voluntarily reduce electricity consumption to support the grid. By contrast, in 2023, the grid manager issued six between August 24 and August 30.
Those conservation appeals were almost always given for the late afternoon and early evening, when demand typically peaks thanks to demand from workers returning home and cranking up their air conditioning. That’s also when the grid has to ramp up dispatchable resources quickly to compensate for solar falling off the grid as the sun sets.
“We’re really seeing peak demand divorced from peak prices,” Joshua Rhodes, research scientist at the University of Texas, told me. This means that when demand is at its highest on a summer day — say around 4 p.m. this past Monday, when load was over 90 gigawatts — real-time prices were about $46 per megawatt-hour, according to Grid Status. At that time, natural gas made up about 42% of the grid and solar 36%. Compare that to the same time in 2023, when real-time prices were $85 per megawatt-hour during peak usage times and wind and solar combined made up around 20% of the grid.
As Abby Lestina, principal market analyst at Grid Status, put it to me, “The lack of pricing action would lead to the conclusion that the grid is more stable.”
Another positive side effect of that stability is that batteries on the system can still charge even when demand is at its highest, and then discharge in the evening to help make up for lost solar. “Even when we were setting peak demand records, we’re still on net charging batteries, which at first blush feels so wrong,” Rhodes told me. “We have so much solar on the system that we’re charging batteries when prices are low, getting ready to discharge as the sun goes down before the wind picks back up.”
Let’s take Monday as an example again: At 7:50 p.m., when solar was down to just 1.5% of the mix on the grid, batteries were discharging 11,573 megawatts and real-time prices were around $125 per-megawatt-hour. On the same Monday of 2023, real-time prices at 7:50 p.m. were bouncing up and down from just below the statutory peak of $5,000 per megawatt hour and batteries were putting out just over a gigawatt.
“Because we have so much battery capacity online, it hasn’t been all that exciting,” Olivier Beaufils, head of US central at Aurora Energy Advisors, told me, referring to the hand-off from solar to batteries. “The price action, it’s like 150 bucks, not thousands, and that’s really because of this battery capacity.”
Texas is also aided by friendly geography — there are extensive solar projects in the western part of the state, while the load is largely in the Texas Triangle in the eastern part of the state, giving solar panels an extra hour or so to serve high demand later in the day.
Average electricity bills in Texas, an energy-hungry state, sat at $252 a month in July, according to Heatmap and MIT’s Electricity Price Hub, up just 2.3% in the past year, while rates are virtually unchanged at 16 cents per kilowatt-hour.
Along with California’s CAISO, ERCOT dominates battery deployment in the United States. According to the energy consulting firm GridLab, “ERCOT alone has deployed nearly 10 times more storage than PJM, MISO, SPP, and the Southeast combined.”
If anything, Texas’ solar and grid battery industries have been a victim of their own success. In Texas, where battery projects are brought online by investors seeking profits in the energy markets, generators make money by selling when prices are high. The same lower prices that show batteries are making the grid more stable are also revenues that battery operators are no longer getting.
“We’ve added so much battery capacity that they’ve cannibalized, they’ve eaten their own lunch,” Beaufils told me. “The situation’s a bit difficult for those operators.” California’s battery storage sector, by contrast, originated with a state mandate for utilities, jumpstarting the industry by force.
Of course, these types of cycles are nothing new to the energy business, especially in Texas.
“ERCOT’s characterized by these boom-bust cycles, and so the market’s never perfectly going to be in a supply-demand equilibrium,” Kevin Lee, head of advisory services for the central U.S. at Aurora Energy Research, told me. “Sometimes you have a little bit less capacity than you need, sometimes a little bit more. But generally, whenever you have a little bit less, the price signals go up, and then that’s driving more investment.”
While Texas still leads the country in battery additions so far this year, other states besides California are beginning to catch up, including Arizona. Thankfully, there’s still more sun yet to store.
Voltpost announced two new models today designed to mount on walls and ceilings.
Voltpost, the company putting electric vehicle chargers on lampposts, is now expanding to parking garages.
On Wednesday, the company unveiled two new configurations that can attach to the walls and ceilings of parking garages, lots, and other locations without easy access to streetlights or utility poles. Like Voltpost’s signature pole-mounted design, the ceiling- and wall-mounted options avoid the expensive construction work required by freestanding charging infrastructure. In theory at least, that should allow the company to deploy more chargers faster.
“Our mission has always been to decarbonize mobility by democratizing charging access,” Jeff Prosserman, Voltpost’s co-founder and CEO, told me. “And the real value proposition is that, when you can leverage the existing infrastructure, you can significantly reduce the cost, the timeline, and the physical footprint of chargers.”
The second Trump administration hasn’t made things easy. Almost immediately after taking office, Trump officials began slashing Biden-era programs designed to support the EV charging buildout, including the National Electric Vehicle Infrastructure and Charging and Fueling Infrastructure programs. Along with a handful of environmental groups, 17 states sued in May of last year to force the federal government to release NEVI funding and quickly received a preliminary injunction unfreezing the program. A similar group sued in December over the CFI funding, and though that case is still pending, Prosserman told me he expects to see a positive resolution before the end of the year.
Though the death of the EV tax credit has shrunk its addressable market, Voltpost has emerged relatively unscathed. “Honestly, that doesn’t really impact us at all,” Prosserman told Heatmap’s Katie Brigham last year. “At the end of the day, EV adoption will either increase X or Y percent in a given year, but it’s going to continue to increase year over year. We’re past the tipping point, going from early adopters into the mainstream.”
That said, he also told Katie that the company was taking a “more conservative approach” to growth as climate tech investment dried up. Voltpost itself also received several federal grants that are still in limbo. Instead, the company focused on its strategic partnerships with the likes of AT&T and Zipcar, and in July signed an agreement with InCharge Energy to handle installation and maintenance. To date, Voltpost’s funders include RWE Energy Transition Investments, a private equity vehicle within German energy giant RWE, alongside Twynam Funds Management, Exelon Foundation, Good News Ventures, and Climate Capital.
Like its lamppost chargers, Voltpost’s wall- and ceiling-mount kits work with Tesla and non-Tesla vehicles alike, and come with demand management software that responds to electricity time-of-use price signals to enable cheaper charging where and when possible. As for the cost of the kits and how many the company plans to install initially, Prosserman wouldn’t say.
Since deploying its first lamppost chargers in New York in 2024, Voltpost has expanded into California, Massachusetts, and Washington, D.C., among other states. It has more than 100 deployments in the pipeline through the end of this year, and is aiming for 10,000 by 2030. The point, Prosserman told me, is not to stand out in these communities, but rather to fit in.
“It’s not going to be just about greenfield project development if we’re going to decarbonize a planet across all aspects,” Prosserman said. “We’re really looking at building something that’s integrated, that fits in the fabric of the built environment and communities.”