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Revoy is already hitching its power packs to semis in one of America’s busiest shipping corridors.
Battery swaps used to be the future. To solve the unsolvable problem of long recharging times for electric vehicles, some innovators at the dawn of this EV age imagined roadside stops where drivers would trade their depleted battery for a fully charged one in a matter of minutes, then be on their merry way.
That vision didn’t work out for passenger EVs — the industry chose DC fast charging instead. If the startup Revoy has its way, however, this kind of idea might be exactly the thing that helps the trucking industry surmount its huge hurdles to using electric power.
Revoy’s creation is, essentially, a bonus battery pack on wheels that turns an ordinary semi into an EV for as long as the battery lasts. The rolling module carries a 525 kilowatt-hour lithium iron phosphate battery pack attaches to the back of the truck; then, the trailer full of cargo attaches to the module. The pack offers a typical truck 250 miles of electric driving. Founder Ian Rust told me that’s just enough energy to reach the next Revoy station, where the trucker could swap their depleted module for a fresh one. And if the battery hits zero charge, that's no problem because the truck reverts to its diesel engine. It’s a little like a plug-in hybrid vehicle, if the PHEV towed its battery pack like an Airstream and could drop it off at will.
“If you run out of battery with us, there's basically no range anxiety,” Rust said. “And we do it intentionally on our routes, run it down to as close to zero as possible before we hit the next Revoy swapping station. That way you can get the maximum value of the battery without having to worry about range.”
To start, a trucker in a normal, everyday semi pulls up to a Revoy station and drops their trailer. A worker attaches a fully charged Revoy unit to the truck and trailer—all in five minutes or less, Revoy promises. Once in place, the unit interfaces seamlessly with the truck’s drivetrain and controls.
“It basically takes over as the cruise control on the vehicle,” he said. “So the driver gets it up to speed, takes their foot off the gas, and then we actually become the primary powertrain on the vehicle. You really only have to burn diesel for the little bit that is getting onto the highway and then getting off the highway, and you get really extreme MPGs with that.”
The Revoy model is going through its real-world paces as we speak. Rust’s startup has partnered with Ryder trucking, whose drivers are powering their semis with Revoy EVs at battery-swap stops along a stretch of Interstate 30 in Texas and Arkansas, a major highway for auto parts and other supplies coming from Mexico. Rust hopes the next Revoy corridor will go into Washington State, where the ample hydropower could help supply clean energy to all those swappable batteries. Happily, he said, Revoy can expand piecemeal like this because its approach negates the chicken-and-egg problem of needing a whole nation of EV chargers to make the vehicles themselves viable. Once a truck leaves a Revoy corridor, it’s just a diesel-powered truck again.
Early data from the Ryder pilot shows that the EV unit slashed how much diesel fuel a truck needs to make it down the designated corridor. “This is a way we can reduce a path to reduce the emissions of our fleet without having to buy anything — and without having to have to worry about how much utilization we're going to have to get,” Mike Plasencia, group director of New Product Strategy at Ryder, told me.
Trucking represents one of the biggest opportunities for cutting the carbon emissions of the transportation sector. It’s also one of the most challenging. Heatmap has covered the problem of oversized SUV and pickup truck EVs, which need larger, more expensive batteries to propel them. The trucking problem is that issue on steroids: A semi can tow up to 80,000 pounds down an American highway.
There are companies building true EV semi trucks despite this tall order — Tesla’s has been road-testing one while hauling Pepsi around, and trucking mainstays like Peterbilt are trying their hand as well. Although the EV model that works for everyday cars — a built-in battery that requires recharging after a couple hundred miles — can work for short-haul trucks that move freight around a city, it is a difficult fit for long-haul trucking where a driver must cover vast distances on a strict timetable. That’s exactly where Revoy is trying to break in.
"We are really focused on long haul,” he told me. “The reason for that is, it's the bigger market. One of the big misconceptions in trucking is that it's dominated by short haul. It's very much the opposite. And it's the bigger emission source, it's the bigger fuel user."
Rust has a background in robotics and devised the Revoy system as a potential solution to both the high cost of EV semis and to the huge chunks of time lost to fueling during long-distance driving. Another part of the pitch is that the Revoy unit is more than a battery. By employing the regenerative braking common in EVs, the Revoy provides a redundancy beyond air brakes for slowing a big semi—that way, if the air brakes fail, a trucker has a better option than the runaway truck lane. The setup also provides power and active steering to the Revoy’s axle, which Rust told me makes the big rig easier to maneuver.
Plasencia agrees. “The feedback from the drivers has been positive,” he said. “You get feedback messages like, it felt like I was driving a car, or like I wasn't carrying anything.”
As it tries to expand to more trucking corridors across the nation, Revoy may face an uphill battle in trying to sell truckers and trucking companies on an entirely new way to think about electrifying their fleets. But Rust has one ace up his sleeve: With Revoy, they get to keep their trucks — no need to buy new ones.
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The state’s senior senator, Thom Tillis, has been vocal about the need to maintain clean energy tax credits.
The majority of voters in North Carolina want Congress to leave the Inflation Reduction Act well enough alone, a new poll from Data for Progress finds.
The survey, which asked North Carolina voters specifically about the clean energy and climate provisions in the bill, presented respondents with a choice between two statements: “The IRA should be repealed by Congress” and “The IRA should be kept in place by Congress.” (“Don’t know” was also an option.)
The responses from voters broke down predictably along party lines, with 71% of Democrats preferring to keep the IRA in place compared to just 31% of Republicans, with half of independent voters in favor of keeping the climate law. Overall, half of North Carolina voters surveyed wanted the IRA to stick around, compared to 37% who’d rather see it go — a significant spread for a state that, prior to the passage of the climate law, was home to little in the way of clean energy development.
But North Carolina now has a lot to lose with the potential repeal of the Inflation Reduction Act, as my colleague Emily Pontecorvo has pointed out. The IRA brought more than 17,000 jobs to the state, per Climate Power, along with $20 billion in investment spread out over 34 clean energy projects. Electric vehicle and charging manufacturers in particular have flocked to the state, with Toyota investing $13.9 billion in its Liberty EV battery manufacturing facility, which opened this past April.
North Carolina Senator Thom Tillis was one of the four co-authors of a letter sent to Majority Leader John Thune in April advocating for the preservation of the law. Together, they wrote that gutting the IRA’s tax credits “would create uncertainty, jeopardizing capital allocation, long-term project planning, and job creation in the energy sector and across our broader economy.” It seems that the majority of North Carolina voters are aligned with their senator — which is lucky for him, as he’s up for reelection in 2026.
The new Nissan Leaf is joining a whole crop of new electric cars in the $30,000 range.
Here is an odd sentence to write in the year 2025: One of the most interesting electric vehicles on the horizon is the Nissan Leaf.
The Japanese automaker last week revealed new images and specs of the redesign it had teased a few months ago. The new Leaf, which will arrive in 2026, is a small crossover that’s sleeker than, say, a Tesla Model Y, but more spacious than the previous hatchback versions of the car. Nissan promises it will have a max range above 300 miles, while industry experts expect the company to target a starting price not too far above $30,000.
The updated Leaf won’t be one of those EVs that smokes a gas-powered sports car in a drag race, not with the 214 horsepower from that debut version and certainly not with the 174 horsepower from the cheaper version that will arrive later on. Its 150-kilowatt max charging speed lags far behind the blazing fast 350-kilowatt charging capability Hyundai is building into its Ioniq electric vehicles. But because it lacks some of these refinements, the new Nissan may arrive as one of the most compelling of the “affordable” EVs that are, finally, coming to drivers.
Not bad for a car that had become an electric afterthought.
The original Nissan Leaf was a revelation merely for its existence. Never mind that it was a lumpy potato derived from the uninspired Nissan Versa — here was the first mass-market electric car, heralding the age of the EV and welcomed with plenty of “car of the year” laurels at the dawn of the 2010s. Its luster would not last, however, as the arrival of the Tesla Model S a couple of years later stole the world’s attention. The second-generation Leaf that arrived in 2017 was an aesthetic and technological leap forward from its predecessor, with a range that topped 200 miles in its most advanced form. It was, for the time, a pretty good EV. Almost immediately, it was overshadowed by the introduction of Tesla’s Model 3 and Model Y, which catapulted Elon Musk’s company into complete dominance of the global EV market.
It took nearly a decade for Nissan (which fell into corporate mismanagement and outright crisis in the meantime) to update the stale and outdated Leaf. As a result, you might think the new version of the OG EV will arrive just in time to be outshone again. Yet the peculiar nature of the evolving electric car market has created an opportunity for the Leaf to finally grow and thrive.
There was a time when the mythical affordable Tesla could have taken the brand into the entry-level car market, and perhaps below the magic starting price of $30,000. But that has turned out to be a distraction dangled in front of fanboys and investors. In reality, Musk effectively killed the idea as he instead rolled out the Cybertruck and pivoted the company toward the dream of total vehicle autonomy.
Thanks to Tesla’s refusal to act like a normal car company, the affordable EV market is still there for the taking. Some are already in the game: Hyundai’s little Kona Electric starts at $33,000, and I’ve lauded Chevrolet for building a base version of the Equinox EV that starts around $35,000. In the next year or so, an influx of EVs in the $30,000 to $35,000 range might really change the game for electric-curious buyers.
The new Leaf is suddenly a big part of that mix. No, it won’t compete on price with a comparable combustion Nissan like the Kicks crossover that starts in the low $20,000s (not without the $7,500 tax credit, which would have made the new crop of affordable EVs directly cost-competitive with entry-level gas cars). The Leaf is likely to start just above $30,000, with the price creeping higher for buyers who opt for better performance or more range (and as I’ve noted numerous times, you ought to buy all the range you can afford if an EV is going to be your main car).
Arriving next year to compete with the Leaf is the new Chevy Bolt, another revival of an early EV icon. Experts expect a similar price range there. The anticipated Kia EV3 should come to America eventually with a starting cost around $35,000. The Jeff Bezos-backed Slate electric truck shocked the world with its promise of a bare-bones EV in the $20,000s — but, by the time the average buyer adds enough amenities to make it liveable, most Slate trucks will probably top $30,000.
Elon Musk may have abdicated his role as the Leaf’s antagonist via his refusal to build an affordable car, but erstwhile ally Donald Trump is poised to assume the role. Since the Leaf is slated to be built in Japan, the EV would be subject to whatever tariffs might be in place by the time it goes on sale next year. A 25% tariff, plus the federal government’s flip to punishing EVs with penalties instead of rewarding them with incentives, would kill the car’s value proposition in the U.S. Perhaps, then, it will become the next great affordable EV — for everybody else.
On life-threatening temperatures, New York’s nuclear ambitions, and cancelled clean energy projects
Current conditions: Monsoon conditions are bringing flash floods to New Mexico • A heat warning has been issued in Beijing as temperatures creep toward 100 degrees Fahrenheit • It's hot and dry in Tehran today as a tenuous ceasefire between Iran and Israel comes into effect.
New York Governor Kathy Hochul announced on Monday that she wants to bring new, public nuclear power back to the state. She directed the New York Power Authority, the state power agency, to develop at least 1 gigawatt of new nuclear capacity upstate. Hochul did not specify a design or even a location for the new plant, but based on a few clues in the press release and where Hochul chose to make the announcement, Heatmap’s Matthew Zeitlin speculates that the project could be a small modular reactor, specifically GE Hitachi’s BWRX-300, one of a handful of SMR designs vying for both regulatory approval and commercial viability in the U.S. “Canada’s Ontario Power Generation recently approved a plan to build one,” Zeitlin notes, “with the idea to eventually build three more for a total 1.2 gigawatts of generating capacity, i.e. roughly the amount Hochul’s targeting.”
The announcement comes at a time when the federal regulatory and tax balance is tipping toward nuclear. The Trump administration issued a fleet of executive orders looking to speed up nuclear construction and regulatory approvals, and Senate Republicans’ version of the mega budget reconciliation bill includes far more generous treatment of nuclear development compared to wind and solar.
The heat dome that’s moving slowly across the U.S. is bringing dangerous conditions to millions of Americans. Multiple cities across the Midwest and East Coast felt hotter than 100 degrees Fahrenheit yesterday, including Chicago, Nashville, and Raleigh. Roads buckled in Missouri. In New York’s Staten Island, the heat index hit 113 degrees. “This is life-threatening,” NYC Emergency Management said in a post on X. “At this level, the human body struggles to cool itself. Prolonged exposure or physical activity can quickly lead to heat stroke.” Power outages were reported in parts of the city. New York Mayor Eric Adams urged residents to help relieve the strain on the electric grid by avoiding using large appliances in the middle of the day, turning off lights, and limiting unnecessary air conditioning use. Wholesale energy prices soared as use skyrocketed. According to AccuWeather, more than 160 daily high temperature records could fall this week before things cool down Wednesday. Nearly 150 million people are affected by some kind of heat alert, and about 10% of the nation’s population will endure temperatures at or above 100 degrees today.
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About $1.4 billion in clean energy projects were cancelled last month as policy uncertainty mounts and the GOP’s budget reconciliation megabill hacks away at clean energy tax credits and permitting reform. According to a new report from clean energy business group E2, $15.5 billion in new factories and electricity projects have been nixed since the start of 2025, along with the 12,000 new jobs those projects were expected to create. “Republican congressional districts are losing the most,” the report finds. “More than $9 billion in investments and almost 10,000 jobs have been cancelled, delayed, or closed in Republican districts so far in 2025.”
The world added 741 gigawatts of renewable energy capacity last year, according to the new Renewables Global Status Report from Paris-based think tank REN21. That’s a new record, but it still falls far short of the COP28 goal to triple renewables capacity by 2030. In fact, “current trajectories suggest a shortfall of 6.2 terawatts – more than all renewables deployed to date,” the report finds. Here are some other key takeaways:
REN21
The Trump administration will roll back protections for nearly 60 million acres of pristine national forest, Agriculture Secretary Brooke Rollins announced Monday. Rescinding the 2001 “Roadless Rule” will open vast swathes of the nation’s forests — including Tongass National Forest in Alaska, which is North America’s largest temperate rainforest — to industrial activities. The administration called the rule “overly restrictive,” and said rolling it back will allow for better fire prevention and “responsible” timber production. The logging industry applauded the announcement; conservation groups condemned it. The rollback is likely to be challenged in court.
“I now believe that cleaning up methane leaks from the production and shipping of oil and gas — one of the most significant sources of these emissions — is the best hope we have to avoid triggering some of the most consequential climate tipping points in the next decade. I think realistically it is our only hope.” –Carl Pope, former executive director of the Sierra Club, on his biggest regrets as an environmentalist.