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An age-old tension, resolved.
For as long as I’ve been an energy reporter, I’ve been asked a scoffing question by moderates and conservatives: If Democrats really cared about climate change, shouldn’t they embrace nuclear power?
It’s a fair question. Nuclear energy, after all, can produce vast amounts of electricity without emitting planet-warming greenhouse gas pollution. It already generates more zero-carbon electricity in America than wind turbines and solar panels do combined; unlike renewables, it can provide power all day and night, even when the sun isn’t shining and the wind isn’t blowing. The countries that have seen the largest year-over-year drops in carbon pollution — e.g. France — have generally done so by building a new fleet of nuclear reactors.
It’s also a factual question. For years, even as Democrats railed against fossil fuels, they dilly-dallied on nuclear issues. The party’s leaders in statehouses and legislative chambers around the country worked to shut down aging nuclear reactors or approved nuclear-skeptical regulators. President Barack Obama cheered next-generation nuclear in speeches, but appointed extremely nuclear-skeptical regulators to oversee the industry. (One of his first appointees to the Nuclear Regulatory Commission, Gregory Jaczko, has called for a global ban on nuclear energy since leaving the government.)
Even though nuclear reactors produced most of America’s zero-carbon electricity, they remained the, well, glowing-blue-haired step-child of America’s grid: Democrats regularly railed against fossil fuels, and they felt comfortable paying lip service to far-off atomic technologies, but they did not lavish nuclear with the unqualified support that they gave renewables. Instead, they let the nuclear industry slip into senescence. This mild toleration was punctuated by moments of extreme cognitive dissonance, such as when New York Governor Andrew Cuomo shut down the Indian Point nuclear power plant in 2021 without lining up new zero-carbon generation to replace it — leading the state’s carbon emissions to soar.
Of course, Democrats didn’t have to do much to kill nuclear: At the same time, the market was doing a perfectly good job of it. As cheap natural gas flooded the American energy system in the 2010s, more and more nuclear plants became too expensive to run. From 2012 to 2022, 12 nuclear reactors shut down in the U.S., taking nearly 10,000 megawatts of low-carbon generation offline.
That was the status quo as recently as 2020 or even 2022. And it has remained the status quo in energy commentary. “What role, if any, does [Vice President Kamala Harris] see for nuclear power in her energy and climate plans?” askedThe New York Times columnist Bret Stephens last month, in a column titled “What Harris Must Do to Win Over Skeptics (Like Me).” At the vice presidential debate earlier this month, Republican nominee JD Vance even alluded to the argument amid a broader paean to fossil fuels. “If you really want to make the environment cleaner, you've got to invest in more energy production,” Vance said. “We haven't built a nuclear facility — I think one — in the past 40 years.”
In fact, Vance is wrong: The United States recently turned on two new nuclear reactors in Georgia — the first newly built reactors in America in 30 years. But this idea — Why aren’t we building more nuclear reactors? Why don’t Democrats do more to help nuclear? — has been a throughline of energy punditry since well before Vance was a best-selling author.
So I want to intervene in this conversation and note that the answer has now changed. Democrats are a pro-nuclear party now — not uniformly, but then again, neither are Republicans. Over the past several years, Democratic lawmakers and officials have adopted a slate of aggressively pro-nuclear policies and characterized the technology as pro-climate. Secretary of Energy Jennifer Granholm has called for America to build a new wave of conventional nuclear reactors — going much further than Obama ever did. Sometimes working with Republicans — but sometimes working alone, too — Democrats have pushed billions of dollars of support toward conventional nuclear reactors and the nascent advanced nuclear industry.
It’s worth stepping back here and going over what has actually changed.
For the past 10 years at least, both parties have been credibly committed to building up the advanced nuclear industry — the theoretical next generation of nuclear reactors that will be smaller, cleaner, and safer than the behemoths built during the Cold War. During the Trump administration, Congress passed a bipartisan bill meant to push along the advanced nuclear industry. It also passed the Energy Act of 2020, which authorized a demonstration program for advanced nuclear reactors.
The Biden administration has continued this support. The bipartisan infrastructure law created a $6 billion program that would pay existing nuclear power plants to stay open. At least $1.1 billion of that money will go to keeping Diablo Canyon, California’s only operating nuclear facility and its largest power plant, from shutting down; it was originally slated to close in 2025.
Earlier this year, Biden also extended a key program that indemnifies the nuclear industry for the cost of nuclear accidents and disasters above $16.1 billion.
But perhaps the most important nuclear law passed in the past five years is the Inflation Reduction Act, the Biden administration’s signature climate package. For the first time ever, that law embraced the idea of “technology neutrality,” which means that electricity generated by nuclear reactors is now on the same footing as power from wind turbines or solar panels. If a method of electricity generation emits almost no carbon, then the government subsidizes it under the IRA.
The law is already helping restart nuclear reactors that have recently closed such as the Palisades reactor in Michigan and Three Mile Island in Pennsylvania. The utility giant NextEra is also exploring plans to restart the Duane Arnold nuclear plant in Iowa, which closed in 2020. If those go through, then it will be able to take advantage of Inflation Reduction Act funding, as well.
Lawmakers from both parties have continued to back advanced nuclear research and deployment. Under Biden, Congress passed the ADVANCE Act, containing a hodgepodge of policies meant to help the advanced nuclear industry. Among other changes, it instructs the Nuclear Regulatory Commission to move faster when approving new reactor designs, and it changes that agency’s mission statement to more affirmatively support nuclear development.
Biden administration officials haven’t just backed that legislation, they’ve also asserted that it will “help us build new reactors at a clip that we haven’t seen since the 1970s,” as Michael Goff, who leads the Energy Department’s nuclear office, bragged in a statement.
The irony is that nuclear plants are now doing well enough that Congress has clawed back some of the money from the bipartisan infrastructure law. The industry, seemingly, doesn’t need it any more, and no additional nuclear reactors have been scheduled to shut down. In 2024, Congress stripped up to $3.7 billion to pay for a program to produce a type of high-assay used in next-generation nuclear reactors.
Democrats have begun to brag about their nuclear policymaking efforts on the campaign trail, as well. In her speech on economic policy earlier this month, Kamala Harris included “advanced nuclear” in a list of technologies that her administration would support.
“We will invest in biomanufacturing and aerospace; remain dominant in AI and quantum computing, blockchain and other emerging technologies; expand our lead in clean energy innovation and manufacturing,” she said, “so the next generation of breakthroughs — from advanced batteries to geothermal to advanced nuclear — are not just invented but built here in America by American workers.”
The party’s Senate candidates have become even more positive about nuclear energy. Candidates in Arizona, Michigan, Florida, and Texas have all backed nuclear power, as the reporter Alexander Kaufman at Huffpost has shown.
This transformation has happened even though the big big environmental groups that have historically set the party’s energy priorities have not changed their mind on nuclear. Although many green groups have scaled back or defunded their anti-nuclear activism, their rhetoric remains staunchly anti-nuclear. The Sierra Club calls nuclear power a “uniquely dangerous energy technology for humanity” and states on its website: “The Sierra Club remains unequivocally opposed to nuclear energy.”
The party’s approach to nuclear hasn’t informed all its policy yet. The Biden administration’s nominations to the Nuclear Regulatory Commission have been criticized by pro-nuclear advocates for continuing the status quo or for not knowing enough about the advanced nuclear industry.
But Democrats are, by any measure, much more pro-nuclear now than they were 10 years ago — and much more pro-nuclear than they were a decade before that. (It’s often forgotten now that President Bill Clinton’s would-be climate policy, the BTU tax, also would have levied a fee on nuclear reactors.) Republicans also remain fairly pro-nuclear: Donald Trump has promised to approve “hundreds of new power plants,” including “new reactors,” during his presidency.
What remains unclear is whether both parties can persist in this new pro-nuclear formation. Nuclear energy is popular with a majority of the public, but only just; 56% of Americans favor building more nuclear power plants, according to the Pew Research Center. And there are signs, if you squint, of a potential coming era of GOP skepticism of nuclear power — part of the party’s broader turn against science and high-trust institutions.
Signs like: Robert F. Kennedy, Jr., who has been added to Trump’s transition team, believes that nuclear power is unsafe and uneconomical. Even Trump himself, in conversation with Elon Musk, has worried about “nuclear warming” — it’s not clear what he was talking about, but it might be nuclear war — and said that nuclear has a “branding problem.” Even if Trump continues to support the idea of building “new reactors,” his potentially illegal plan to claw back the Inflation Reduction Act’s unspent funding may lead to pandemonium in the sector. If the nuclear industry is now planning on receiving IRA subsidies, then ending those subsidies — especially in a messy or chaotic way — could spell disaster.
There are identity-driven reasons for Republicans to turn on nuclear, too: The nuclear energy industry is more unionized than any other energy source, and it requires a highly institutionalized and educated workforce. (Yet not all the trends augur a realignment: Nuclear power remains much more popular with men than women.)
For now, though, both parties — including Democrats — support building new nuclear power plants. The economics are good for once, too. The question now is how long that will hold.
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Rob and Jesse talk with John Henry Harris, the cofounder and CEO of Harbinger Motors.
You might not think that often about medium-duty trucks, but they’re all around you: ambulances, UPS and FedEx delivery trucks, school buses. And although they make up a relatively small share of vehicles on the road, they generate an outsized amount of carbon pollution. They’re also a surprisingly ripe target for electrification, because so many medium-duty trucks drive fewer than 150 miles a day.
On this week’s episode of Shift Key, Rob and Jesse talk with John Henry Harris, the cofounder and CEO of Harbinger Motors. Harbinger is a Los Angeles-based startup that sells electric and hybrid chassis for medium-duty vehicles, such as delivery vans, moving trucks, and ambulances.
Rob, John, and Jesse chat about why medium-duty trucking is unlike any other vehicle segment, how to design an electric truck to last 20 years, and how President Trump’s tariffs are already stalling out manufacturing firms. Shift Key is hosted by Jesse Jenkins, a professor of energy systems engineering at Princeton University, and Robinson Meyer, Heatmap’s executive editor.
Subscribe to “Shift Key” and find this episode on Apple Podcasts, Spotify, Amazon, YouTube, or wherever you get your podcasts.
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Here is an excerpt from our conversation:
Robinson Meyer: What is it like building a final assembly plant — a U.S. factory — in this moment?
John Harris: I would say lots of people talk about how excited they are about U.S. manufacturing, but that's very different than putting their money where their mouth is. Building a final assembly line, like we have — our team here is really good, that they made it feel not that hard. The challenge is the whole supply chain.
If we look at what we build here in-house at Harbinger, we have a final assembly line where we bolt parts together to make chassis. We also have two sub-component assembly lines where we take copper and make motors, and where we take cells and make batteries. All three of those lines work pretty well. We're pumping out chassis, and they roll out the door, and we sell them to people, which is great. But it’s all the stuff that goes into those, that's the most challenging. There's a lot of trade policy at certain hours of the day, on certain days of the week — depending on when we check — that is theoretically supposed to encourage us manufacturing.
But it's really not because of the volatility. It costs us an enormous amount to build the supply chain, to feed these lines. And when we have volatile trade policy, our reaction, and everyone else's reaction, is to just pause. It’s not to spend more money on U.S. manufacturing, because we were already doing that. We were spending a lot on U.S. manufacturing as part of our core approach to manufacturing.
The latest trade policy has caused us to spend less money on U.S. manufacturing — not more, because we're unclear on what is the demand environment going to be, what is the policy going to be next week? We were getting ready to make major investments to take certain manufacturing tasks in our supply chain out of China and move them to Mexico, for example. Now we’re not. We were getting ready to invest in certain kinds of automation to do things in house, and now we're waiting. So the volatility is dramatically shrinking investment in US manufacturing, including ours.
Meyer: And can you just explain, why did you make that decision to pause investment and how does trade policy affect that decision?
Harris: When we had 25% tariffs on China, if we take content out of China and move it to Mexico, we break even — if that. We might still end up underwater. That's because there's better automation in China. There's much higher labor productivity. And — this one is always shocking to people — there’s lower logistics costs. When we move stuff from Shenzhen to our factory, in many cases it costs us less than moving shipments from Monterey.
Mentioned:
CalStart’s data on medium-duty electric trucks deployed in the U.S.
Here’s the chart that John showed Rob and Jesse:
Courtesy of Harbinger
It draws on data from Bloomberg in China, the ICCT, and the Calstart ZET Dashboard in the United States.
Jesse’s case for EVs with gas tanks — which are called extended range electric vehicles
On xAI, residential solar, and domestic lithium
Current conditions: Indonesia has issued its highest alert level due to the ongoing eruption of Mount Lewotobi Laki-laki • 10 million people from Missouri to Michigan are at risk of large hail and damaging winds today • Tropical Storm Erick, the earliest “E” storm on record in the eastern Pacific Ocean, could potentially strengthen into a major hurricane before making landfall near Acapulco, Mexico, on Thursday.
The NAACP and the Southern Environmental Law Center said Tuesday that they intend to sue Elon Musk’s artificial intelligence company xAI over alleged Clean Air Act violations at its Memphis facility. Per the lawsuit, xAI failed to obtain the required permits for the use of the 26 gas turbines that power its supercomputer, and in doing so, the company also avoided equipping the turbines with technology that would have reduced emissions. “xAI’s turbines are collectively one of the largest, or potentially the largest, industrial source of nitrogen oxides in Shelby County,” the lawsuit claims.
The SELC has additionally said that residents who live near the xAI facility already face cancer risks four times above the national average, and opponents have argued that xAI’s lack of urgency in responding to community concerns about the pollution is a case of “environmental racism.” In a statement Tuesday, xAI responded to the threat of a lawsuit by claiming the “temporary power generation units are operating in compliance with all applicable laws,” and said it intends to equip the turbines with the necessary technology to reduce emissions going forward.
Shares of several residential solar companies plummeted Tuesday after the Senate Finance Committee declined to preserve related Inflation Reduction Act investment tax credits. As my colleague Matthew Zeitlin reported, Sunrun shares fell 40%, “bringing the company’s market cap down by almost $900 million to $1.3 billion,” after a brief jump at the end of last week “due to optimism that the Senate Finance bill might include friendlier language for its business model.”
That never materialized. Instead, the Finance Committee’s draft proposed terminating the residential clean energy tax credit for any systems, including residential solar, six months after the bill is signed, as well as the investment and production tax credits for residential solar. SolarEdge and Enphase also suffered from the news, with shares down 33% and 24%, respectively. You can read Matthew’s full analysis here.
Chevron announced Tuesday that it has acquired 125,000 net acres of the Smackover Formation in southwest Arkansas and northeast Texas to get into domestic lithium extraction. Chevron’s acquisition follows an earlier move by Exxon Mobil to do the same, with lithium representing a key resource for the transition from fossil fuels to renewable energy sources “that would allow the company to pivot if oil and gas demands wane in the coming decades,” Bloomberg writes.
“Establishing domestic and resilient lithium supply chains is essential not only to maintaining U.S. energy leadership but also to meeting the growing demand from customers,” Jeff Gustavson, the president of Chevron New Energies, said in a Tuesday press release. The Liberty Owl project, which was part of Chevron’s acquisition from TerraVolta Resources, is “expected to have an initial production capacity of at least 25,000 tonnes of lithium carbonate per year, which is enough lithium to power about 500,000 electric vehicles annually,” Houston Business Journal reports.
The Federal Emergency Management Agency prepared a memo titled “Abolishing FEMA” at the direction of Homeland Security Secretary Kristi Noem, describing how its functions can be “drastically reformed, transferred to another agency, or abolished in their entirety” as soon as the end of 2025. While only Congress can technically eliminate the agency, the March memo, obtained and reviewed by Bloomberg, describes potential changes like “eliminating long-term housing assistance for disaster survivors, halting enrollments in the National Flood Insurance Program, and providing smaller amounts of aid for fewer incidents — moves that by design would dramatically limit the federal government’s role in disaster response.”
In May, FEMA’s acting administrator, Cameron Hamilton, was fired one day after defending the existence of the department he’d been appointed to oversee when testifying before the House Appropriations subcommittee. An internal FEMA memo from the same month described the agency’s “critical functions” as being at “high risk” of failure due to “significant personnel losses in advance of the 2025 Hurricane Season.” President Trump has, on several occasions, expressed a desire to eliminate FEMA, as recommended by the Project 2025 playbook from the Heritage Foundation. The March “Abolishing FEMA” memo “just means you should not expect to see FEMA on the ground unless it’s 9/11, Katrina, Superstorm Sandy,” Carrie Speranza, the president of the U.S. council of the International Association of Emergency Managers, told Bloomberg.
The Spanish government on Tuesday released its report on the causes of the April 28 blackout that left much of the nation, as well as parts of Portugal, without power for more than 12 hours. Ecological Transition Minister Sara Aagesen, who heads Spain’s energy policy, told reporters that a voltage surge in the south of Spain had triggered a “chain reaction of disconnections” that led to the widespread power loss, and blamed the nation’s state-owned grid operator Red Eléctrica for “poor planning” and failing to have enough thermal power stations online to control the dynamic voltage, the Associated Press reports. Additionally, Aagesen said that utilities had preventively shut off some power plants when the disruptions started, which could have helped the system stay online. “We have a solid narrative of events and a verified explanation that allows us to reflect and to act as we surely will,” Aagesen went on, responding to criticisms that Spain’s renewable-heavy energy mix was to blame for the blackout. “We believe in the energy transition and we know it’s not an ideological question but one of this country’s principal vectors of growth when it comes to re-industrialisation opportunities.”
Metrograph
“It seems that with the current political climate, with the removal of any reference to climate change on U.S. government websites, with the gutting of environmental laws, and the recent devastating fires in Los Angeles, this trilogy of films is still urgently relevant.” —Filmmaker Jennifer Baichwal on the upcoming screenings of the Anthropocene trilogy, co-created with Nicholas de Pencier and photographer Edward Burtynsky between 2006 and 2018, at the Metrograph in New York City.
Shares in Sunrun, SolarEdge, and Enphase are collapsing on the Senate’s new mega-bill draft.
The residential solar rescue never happened. Shares in several residential solar companies plummeted Tuesday as the market reacted to the Senate Finance Committee’s reconciliation language, which maintains the House bill’s restriction on investment tax credits for residential solar installers and its scrapping of the tax credit for homeowners who buy their own systems.
The Solar Energy Industries Association, a solar trade group, criticized the Senate text, saying that it had only “modest improvements on several provisions” and would “pull the plug on homegrown solar energy and decimate the American manufacturing renaissance.”
Sunrun shares fell 40% Tuesday, bringing the company’s market cap down by almost $900 million to $1.3 billion, a comparable loss in value to what it sustained the day after the passage of the House reconciliation bill. The stock price had jumped up late last week due to optimism that the Senate Finance bill might include friendlier language for its business model.
Instead the Finance Committee proposal would terminate the residential clean energy tax credit for any systems, including residential solar, six months after the bill is signed. The text also zeroes out investment and production tax credits for residential solar when “the taxpayer rents or leases such property to a third party,” a common arrangement in the industry pioneered by Sunrun.
Sunrun’s third party ownership model well predates the Inflation Reduction Act and is about as old as the company itself, which was founded in 2007. The company had been claiming investment tax credits for solar before the IRA made them tech neutral. The company began securitizing solar deals in 2015 and in a 2016 securities filling, the company said that it had six deals where investors would be able to garner the lease payments and investment tax credits.
“Ain’t no sunshine for resi,” Jefferies analyst Julien Dumoulin-Smith wrote in a note to clients on Tuesday. “Overall, we view Senate's version as a negative” for Sunrun, as well as SolarEdge and Enphase, the residential solar equipment companies, whose shares are down by about 33% and 24% respectively.
“If this language is not adjusted before the bill passes the Senate floor,” Morgan Stanley analyst Andrew Perocco wrote in a note to clients, “we believe Sunrun, SolarEdge, and Enphase will trade towards our bear cases.”
Morgan Stanley had earlier estimated that cutting off home solar from tax credits would lead to a “85% contraction in residential solar volumes” due, in many cases, to solar products no longer resulting in savings on electricity bills.
That’s because the ability to lease solar equipment (or have homeowners sign power purchase agreements) and then claim tax credits sits at the core of the contemporary residential solar model.
“Our core solar service offerings are provided through our lease and power purchase agreements,” the company said in its 2024 annual report. “While customers have the option to purchase a solar energy system outright from us, most of our customers choose to buy solar as a service from us through our Customer Agreements without the significant upfront investment of purchasing a solar energy system.”
This means that to claim tax credits for the projects, they have to be investment tax credits, not home energy credits. These credits play a role in Sunrun’s extensive business raising money from investors to finance solar projects, which can then be partially monetized via tax credits.
Fund investors “can receive attractive after-tax returns from our investment funds due to their ability to utilize Commercial ITCs,” the company said in its report. The financing then “enables us to offer attractive pricing to our customers for the energy generated by the solar energy system on their homes.”
Without the ability to claim investment tax credits, Sunrun could be left having to charge higher prices to homeowners and face a higher cost of capital to raise money from investors.
“Last night’s draft text confirms the Senate intends to abruptly repeal tax credits available to homeowners who want to go solar – effectively increasing costs and limiting choice for countless Americans,” Chris Hopper, chief executive of Aurora Solar, said in an emailed statement.