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The government agency is quietly funding some of the industry’s most exciting early stage companies.
When the George W. Bush administration established the Advanced Research Projects Agency - Energy, better known as ARPA-E, the number one goal for the new agency sounded an ambitious and patriotic note: “To enhance the economic and energy security of the United States through the development of energy technologies.” And from that uncontroversial foundation, a bipartisan bastion of cleantech innovation was born.
I knew I wanted to dig into the critical role that ARPA-E plays in the climate tech funding landscape after Rajesh Swaminathan, a partner at Khosla Ventures, told me that he views the agency as the “least talked about VC in town.” So I reached out to ARPA-E’s director, Evelyn Wang, to learn more.
Of course, ARPA-E isn’t actually a venture capital firm — it provides no-strings-attached funding to promising energy projects rather than aiming for a return on investment. “So a little bit different,” Wang told me. “Our mission is very much focused on energy independence, reducing greenhouse gas emissions, and enhancing energy efficiency.”
The Bush administration established ARPA-E in 2007 with the passage of the America COMPETES Act, which aimed to improve the technological competitiveness of the United States via investments in research and development. But the agency was funded for the first time in 2009, under Obama, as a part of an $800 billion stimulus package in response to the Great Recession. A substantial chunk of that funding — $90 billion — was allocated for clean energy, which the administration would go on to boast amounted to the “largest single investment in clean energy in history.”
Yet whether it’s been Bush or Obama — or Trump or Biden — in the White House, the messaging around ARPA-E has always trended less towards renewables and climate mitigation and more towards energy security and economic competitiveness. As the name suggests, ARPA-E is modeled after the Defense Advanced Research Projects Agency, or DARPA, which was established in 1958 in response to the Soviet’s launch of the Sputnik satellite. DARPA has since helped birth such little-known tech as the entire internet, GPS, automated voice recognition, and self-driving cars.
But while the de facto customer for DARPA-developed tech is always the Department of Defense, the pathway to commercialization for ARPA-E projects mainly relies on private sector interest. In that sense, the goal of ARPA-E is neatly aligned with that of venture capitalists: Get tech to market. Because while scientific learnings are all well and good, Wang said that “ultimately, we need to see these technologies commercialized — to actually be out there — to actually affect the ecosystem and change the energy landscape.”
Since ARPA-E can eschew the profit motive, it’s able to fund high-risk, high-reward projects at the earliest stages, when most investors would be reluctant to take on that level of uncertainty. Yet the inherent risk means the success rate for ARPA-E projects as measured by metrics such as the number of companies it’s spawned (157), exits via mergers, acquisitions or IPOs (30), and additional partnerships with other government agencies (360), can seem low compared to the 1,590 projects that the agency has funded over the past 15 years. A climate tech investor I spoke with on background told me that while they love ARPA-E and are glad it exists, they were expecting more success stories by now.
That’s at least partially because even after a project is funded and proof-of-concept has been demonstrated, there’s often still a ways to go before investors are ready to jump in. “I think when we first stood up ARPA-E, the idea was that at that point, it would be sufficiently de-risked for the private sector to then pick it up and invest,” Wang told me. But frequently, that hasn’t been the case. ARPA-E usually funds projects for one to three years, but often climate tech innovation relies on deeply complex and thus inherently slow advancements in science and engineering — think fusion energy, novel battery development, or direct air capture. Many venture funds have 10 year time horizons, so if investors don’t see a payoff happening in that timeframe, they’ll probably hold back.
The investor I spoke with on background told me that ARPA-E has become more effective in partnership with the Office of Clean Energy Demonstrations, established in 2021 under the Department of Energy, which uses its $25 billion budget to create model buildouts of new technology with private sector partners. Earlier this year, OCED selected six ARPA-E awardees focused on industrial decarbonization to receive a combined total of up to $775 million.
Even so, the investor told me, ARPA-E funding alone still might not be enough to get companies to a place where OCED would be interested. To help close that gap, ARPA-E started a program called SCALEUP, a mouthful of an acronym for The Seeding Critical Advances for Leading Energy (Technologies) with Untapped Potential, in 2019. It provides a small number of ARPA-E projects with follow-on funding to further prove out their concepts — provided they can identify at least one commercialization partner such as a potential customer, end-user, or supplier willing to take a stake in the development of the tech and help it get to market.
So far, Wang says the program has yielded some successes. The list includes LongPath Technologies, which monitors methane emissions and leaks in the oil and gas industry and received a conditional loan last year from the DOE’s Loan Programs Office; Natron Energy, which just opened the first commercial-scale sodium-ion battery production facility in the U.S.; and Sila, a battery materials manufacturer that has raised over $1.3 billion in total, and secured contracts with Mercedes-Benz and Panasonic.
When you look at ARPA-E’s success rate in terms of dollars in and dollars out, though, it starts to look pretty darn efficacious as is. Since 2009, ARPA-E has provided more than $3.8 billion for research and development, leading to over $12.6 billion in private-sector follow-on funding, while the 30 exits to date have yielded a combined market valuation of $22.2 billion. And since it often takes climate tech companies around a decade to mature to the point where they’re ready for an exit event, many of ARPA-E’s companies have yet to reach the acquisition or IPO threshold.
These days, ARPA-E projects are facing a completely different funding landscape than in the 2000s — one ripe with both excitement and cash as well as increasing competition. So while Wang told me that the agency’s goal is always to look for “technological whitespace” in the energy landscape, “it's getting more crowded,” she said. “And I think in that context, we've strategically decided that we should also think about broader vision type efforts.” To that end, ARPA-E has identified three comprehensive focus areas: developing clean primary energy sources such as geothermal, small modular nuclear reactors, fusion and geologic hydrogen; power delivery for non-electrical sources, such as energy transported via hydrogen or heat; and figuring out how to source carbon sustainably, such as via engineered plants and algae.
Now that ARPA-E has been supporting projects for a decade and a half, it’s getting more experimental when it comes to developing novel testbeds for its tech. Exhibit A is the San Antonio International Airport, whichrecently signed a memorandum of understanding with the agency to deploy a series of ARPA-E backed technologies.
Many major airports are actually higher tech than passengers may realize, and given the mounting pressure on the aviation industry to decarbonize, they’re also open to novel sustainability solutions. In San Antonio, the airport is deploying EV chargers from Imagen Energy and sodium-ion battery tech from Natron Energy, both of which could help electrify their ground vehicles, as well as a distributed energy management system from Autogrid, which allows airports to control their virtual power plants, microgrids, EV fleet, and demand response measures. Other tech, such as hybrid-electric planes from Ampaire, could be integrated into the airport in the future.
That’s a lot of technology development for not many headlines. And when a company raises a major round or goes public, sometimes you have to dig deep to discover their ARPA-E origins. Hence, the “least talked about VC in town” comment. In some sense, Wang says, this is intentional.
“When we think about success, if our teams, our companies are successful, and they shine, then we shine,” she told me, and maybe that’s the way it should continue to be. Because while advertising government investment in anything seen as “clean” or “green” can immediately draw both partisan praise and ire, funding for ARPA-E has been steadily creeping up nearly every year since 2015. And yes, that includes the Trump era, even though the former president seemingly wanted to axe the agency altogether. Congress, it turned out, was not on board with that plan.
“Our mission is about energy independence and bolstering our economy and I think everyone agrees with this mission,” Wang told me. “Everyone,” of course, will always be an overstatement. But perhaps Wang is right that the agency does function better as a behind-the-scenes player. As she put it, speaking of the companies the agency funds, “It’s more about them, right? And how that affects the ecosystem, and helps our nation in terms of what we need to do as a country, and how that sets an example for the world.”
Editor’s note: This story initially misstated the size of the American Recovery and Reinvestment Act and the amount of funding allocated to clean energy.
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Any household savings will barely make a dent in the added costs from Trump’s many tariffs.
Donald Trump’s tariffs — the “fentanyl” levies on Canada, China, and Mexico, the “reciprocal” tariffs on nearly every country (and some uninhabited islands), and the global 10% tariff — will almost certainly cause consumer goods on average to get more expensive. The Yale Budget Lab estimates that in combination, the tariffs Trump has announced so far in his second term will cause prices to rise 2.3%, reducing purchasing power by $3,800 per year per household.
But there’s one very important consumer good that seems due to decline in price.
Trump administration officials — including the president himself — have touted cheaper oil to suggest that the economic response to the tariffs hasn’t been all bad. On Sunday, Secretary of the Treasury Scott Bessent told NBC, “Oil prices went down almost 15% in two days, which impacts working Americans much more than the stock market does.”
Trump picked up this line on Truth Social Monday morning. “Oil prices are down, interest rates are down (the slow moving Fed should cut rates!), food prices are down, there is NO INFLATION,” he wrote. He then spent the day posting quotes from Fox Business commentators echoing that idea, first Maria Bartiromo (“Rates are plummeting, oil prices are plummeting, deregulation is happening. President Trump is not going to bend”) then Charles Payne (“What we’re not talking about is, oil was $76, now it’s $65. Gasoline prices are going to plummet”).
But according to Neil Dutta, head of economic research at Renaissance Macro Research, pointing to falling oil prices as a stimulus is just another example of the “4D chess” theory, under which some market participants attribute motives to Trump’s trade policy beyond his stated goal of reducing trade deficits to as near zero (or surplus!) as possible.
Instead, oil markets are primarily “responding to the recession risk that comes from the tariff and the trade war,” Dutta told me. “That is the main story.” In short, oil markets see less global trade and less global production, and therefore falling demand for oil. The effect on household consumption, he said, was a “second order effect.”
It is true that falling oil prices will help “stabilize consumption,” Dutta told me (although they could also devastate America’s own oil industry). “It helps. It’ll provide some lift to real income growth for consumers, because they’re not spending as much on gasoline.” But “to fully offset the trade war effects, you basically need to get oil down to zero.”
That’s confirmed by some simple and extremely back of the envelope math. In 2023, households on average consumed about 700 gallons of gasoline per year, based on Energy Information Administration calculations that the average gasoline price in 2023 was $3.52, while the Bureau of Labor Statistics put average household gasoline expenditures at about $2,450.
Let’s generously assume that due to the tariffs and Trump’s regulatory and diplomatic efforts, gas prices drop from the $3.26 they were at on Monday, according to AAA, to $2.60, the average price in 2019. (GasBuddy petroleum analyst Patrick De Haanwrote Monday that the tariffs combined with OPEC+ production hikes could lead gas prices “to fall below $3 per gallon.”)
Let’s also assume that this drop in gas prices does not cause people to drive more or buy less fuel-efficient vehicles. In that case, those same 700 gallons cost the average American $1,820, which would generate annual savings of $630 on average per household. If we went to the lowest price since the Russian invasion of Ukraine, about $3 per gallon, total consumption of 700 gallons would cost a household about $2,100, saving $350 per household per year.
That being said, $1,820 is a pretty low level for annual gasoline consumption. In 2021, as the economy was recovering from the Covid recession and before gas prices popped, annual gasoline expenditures only got as low as $1,948; in 2020 — when oil prices dropped to literally negative dollars per barrel and gas prices got down to $1.85 a gallon — annual expenditures were just over $1,500.
In any case, if you remember the opening paragraphs of this story, even the most generous estimated savings would go nowhere near surmounting the overall rise in prices forecast by the Yale Budget Lab. $630 is less than $3,800! (JPMorgan has forecast a more mild increase in prices of 1% to 1.5%, but agrees that prices will likely rise and purchasing power will decline.)
But maybe look at it this way: You might be able to drive a little more than you expected to, even as your costs elsewhere are going up. Just please be careful! You don’t want to get into a bad accident and have to replace your car: New car prices are expected to rise by several thousand dollars due to Trump’s tariffs.
With cars about to get more expensive, it might be time to start tinkering.
More than a decade ago, when I was a young editor at Popular Mechanics, we got a Nissan Leaf. It was a big deal. The magazine had always kept long-term test cars to give readers a full report of how they drove over weeks and months. A true test of the first true production electric vehicle from a major car company felt like a watershed moment: The future was finally beginning. They even installed a destination charger in the basement of the Hearst Corporation’s Manhattan skyscraper.
That Leaf was a bit of a lump, aesthetically and mechanically. It looked like a potato, got about 100 miles of range, and delivered only 110 horsepower or so via its electric motors. This made the O.G. Leaf a scapegoat for Top Gear-style car enthusiasts eager to slander EVs as low-testosterone automobiles of the meek, forced upon an unwilling population of drivers. Once the rise of Tesla in the 2010s had smashed that paradigm and led lots of people to see electric vehicles as sexy and powerful, the original Leaf faded from the public imagination, a relic of the earliest days of the new EV revolution.
Yet lots of those cars are still around. I see a few prowling my workplace parking garage or roaming the streets of Los Angeles. With the faded performance of their old batteries, these long-running EVs aren’t good for much but short-distance city driving. Ignore the outdated battery pack for a second, though, and what surrounds that unit is a perfectly serviceable EV.
That’s exactly what a new brand of EV restorers see. Last week, car site The Autopiancovered DIYers who are scooping up cheap old Leafs, some costing as little as $3,000, and swapping in affordable Chinese-made 62 kilowatt-hour battery units in place of the original 24 kilowatt-hour units to instantly boost the car’s range to about 250 miles. One restorer bought a new battery on the Chinese site Alibaba for $6,000 ($4,500, plus $1,500 to ship that beast across the sea).
The possibility of the (relatively) simple battery swap is a longtime EV owner’s daydream. In the earlier days of the electrification race, many manufacturers and drivers saw simple and quick battery exchange as the solution for EV road-tripping. Instead of waiting half an hour for a battery to recharge, you’d swap your depleted unit for a fully charged one and be on your way. Even Tesla tested this approach last decade before settling for good on the Supercharger network of fast-charging stations.
There are still companies experimenting with battery swaps, but this technology lost. Other EV startups and legacy car companies that followed Nissan and Tesla into making production EVs embraced the rechargeable lithium-ion battery that is meant to be refilled at a fast-charging station and is not designed to be easily removed from the vehicle. Buy an electric vehicle and you’re buying a big battery with a long warranty but no clear plan for replacement. The companies imagine their EVs as something like a smartphone: It’s far from impossible to replace the battery and give the car a new life, but most people won’t bother and will simply move on to a new car when they can’t take the limitations of their old one anymore.
I think about this impasse a lot. My 2019 Tesla Model 3 began its life with a nominal 240 miles of range. Now that the vehicle has nearly six years and 70,000 miles on it, its maximum range is down to just 200, while its functional range at highway speed is much less than that. I don’t want to sink money into another vehicle, which means living with an EV’s range that diminishes as the years go by.
But what if, one day, I replaced its battery? Even if it costs thousands of dollars to achieve, a big range boost via a new battery would make an older EV feel new again, and at a cost that’s still far less than financing a whole new car. The thought is even more compelling in the age of Trump-imposed tariffs that will raise already-expensive new vehicles to a place that’s simply out of reach for many people (though new battery units will be heavily tariffed, too).
This is no simple weekend task. Car enthusiasts have been swapping parts and modifying gas-burning vehicles since the dawn of the automotive age, but modern EVs aren’t exactly made with the garage mechanic in mind. Because so few EVs are on the road, there is a dearth of qualified mechanics and not a huge population of people with the savvy to conduct major surgery on an electric car without electrocuting themselves. A battery-replacing owner would need to acquire not only the correct pack but also potentially adapters and other equipment necessary to make the new battery play nice with the older car. Some Nissan Leaf modifiers are finding their replacement packs aren’t exactly the same size, shape or weight, The Autopian says, meaning they need things like spacers to make the battery sit in just the right place.
A new battery isn’t a fix-all either. The motors and other electrical components wear down and will need to be replaced eventually, too. A man in Norway who drove his Tesla more than a million miles has replaced at least four battery packs and 14 motors, turning his EV into a sort of car of Theseus.
Crucially, though, EVs are much simpler, mechanically, than combustion-powered cars, what with the latter’s belts and spark plugs and thousands of moving parts. The car that surrounds a depleted battery pack might be in perfectly good shape to keep on running for thousands of miles to come if the owner were to install a new unit, one that could potentially give the EV more driving range than it had when it was new.
The battery swap is still the domain of serious top-tier DIYers, and not for the mildly interested or faint of heart. But it is a sign of things to come. A market for very affordable used Teslas is booming as owners ditch their cars at any cost to distance themselves from Elon Musk. Old Leafs, Chevy Bolts and other EVs from the 2010s can be had for cheap. The generation of early vehicles that came with an unacceptably low 100 to 150 miles of range would look a lot more enticing if you imagine today’s battery packs swapped into them. The possibility of a like-new old EV will look more and more promising, especially as millions of Americans realize they can no longer afford a new car.
On the shifting energy mix, tariff impacts, and carbon capture
Current conditions: Europe just experienced its warmest March since record-keeping began 47 years ago • It’s 105 degrees Fahrenheit in India’s capital Delhi where heat warnings are in effect • The risk of severe flooding remains high across much of the Mississippi and Ohio Valleys.
The severe weather outbreak that has brought tornadoes, extreme rainfall, hail, and flash flooding to states across the central U.S. over the past week has already caused between $80 billion and $90 billion in damages and economic losses, according to a preliminary estimate from AccuWeather. The true toll is likely to be costlier because some areas have yet to report their damages, and the flooding is ongoing. “A rare atmospheric river continually resupplying a firehose of deep tropical moisture into the central U.S., combined with a series of storms traversing the same area in rapid succession, created a ‘perfect storm’ for catastrophic flooding and devastating tornadoes,” said AccuWeather’s chief meteorologist Jonathan Porter. The estimate takes into account damages to buildings and infrastructure, as well as secondary effects like supply chain and shipping disruptions, extended power outages, and travel delays. So far 23 people are known to have died in the storms. “This is the third preliminary estimate for total damage and economic loss that AccuWeather experts have issued so far this year,” the outlet noted in a release, “outpacing the frequency of major, costly weather disasters since AccuWeather began issuing estimates in 2017.”
AccuWeather
Low-emission energy sources accounted for 41% of global electricity generation in 2024, up from 39.4% in 2023, according to energy think tank Ember’s annual Global Electricity Review. That includes renewables as well as nuclear. If nuclear is left out of the equation, renewables alone made up 32% of power generation last year. Overall, renewables added a record 858 terawatt hours, nearly 50% more than the previous record set in 2022. Hydro was the largest source of low-carbon power, followed by nuclear. But wind and solar combined overtook hydro last year, while nuclear’s share of the energy mix reached a 45-year low. More solar capacity was installed in 2024 than in any other single year.
Ember
The report notes that demand for electricity rose thanks to heat waves and air conditioning use. This resulted in a slight, 1.4% annual increase in fossil-fuel power generation and pushed power-sector emissions to a new all-time high of 14.5 billion metric tons. “Clean electricity generation met 96% of the demand growth not caused by hotter temperatures,” the report said.
President Trump’s new tariffs will have a “limited” effect on the amount of solar components the U.S. imports from Asia because the U.S. already imposes tariffs on these products, according to a report from research firm BMI. That said, the U.S. still relies heavily on imported solar cells, and the new fees are likely to raise costs for domestic manufacturers and developers, which will ultimately be passed on to buyers and could slow solar growth. “Since the U.S.’s manufacturing capacity is insufficient to meet demand for solar, wind, and grid components, we do expect that costs will increase for developers due to the tariffs which will now be imposed upon these components,” BMI wrote.
In other tariff news, the British government is adjusting its 2030 target of ending the sale of new internal combustion engine cars to ease some of the pain from President Trump’s new 25% auto tariffs. Under the U.K.’s new EV mandate, carmakers will be able to sell new hybrids through 2035 (whereas the previous version of the rules banned them by 2030), and gas and diesel vans can also be sold through 2035. The changes also carve out exemptions for luxury supercar brands like McLaren and Aston Martin, which will be allowed to keep selling new ICE vehicles beyond 2030 because, the government says, they produce so few. The goal is to “help ease the transition and give industry more time to prepare.” British Transport Secretary Heidi Alexander insisted the changes have been “carefully calibrated” and their impact on carbon emissions is “negligible.” As The New York Timesnoted, the U.S. is the largest single-country export market for British cars.
The Environmental Protection Agency has approved Occidental Petroleum’s application to capture and sequester carbon dioxide at its direct air capture facility in Texas, and issued permits that will allow the company to drill and inject the gas more than one mile underground. The Stratos DAC plant is being developed by Occidental subsidiary 1PointFive. As Heatmap’s Katie Brigham has reported, Stratos is designed to remove up to 500,000 metric tons of CO2 annually and set to come online later this year. Its success (or failure) could shape the future of DAC investment at a time when the Trump administration is hollowing out the Department of Energy’s nascent Carbon Dioxide Removal team and casting doubt over the future of the DOE’s $3.5 billion Regional Direct Air Capture Hubs program. While Stratos is not a part of the hubs program, it will use the same technology as Occidental’s South Texas DAC hub.
The Bezos Earth Fund and the Global Methane Hub are launching a $27 million effort to fund research into selectively breeding cattle that emit less methane.