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What happens when America’s biggest source of clean energy pivots to hydrogen?
After the Inflation Reduction Act was signed into law, and initial excitement about its historic investment in tackling climate change turned to deeper analysis, researchers made an alarming discovery. One of the IRA’s big ticket items, a tax credit for clean hydrogen, risks underwriting a major increase in emissions if not implemented carefully. That finding has erupted into a high-stakes debate over how the Treasury Department should define “clean hydrogen.”
Treasury’s decision, which is expected in the coming weeks, will have many implications, but one that deserves more scrutiny is what it could mean for nuclear power, still the largest and most reliable source of carbon-free energy in the U.S.
Nuclear reactors are uniquely well-suited to power hydrogen production, which in turn holds great promise to clean up some of the hardest parts of the economy to decarbonize.
But there's a trade-off: If any of the existing nuclear fleet pivots to making hydrogen, coal and natural gas plants are likely to fill in for that lost power on the grid. That would drive up emissions in the near term and make it harder for states to achieve their clean energy goals.
The debate boils down to whether it’s more advantageous to use our existing nuclear fleet to kickstart a hydrogen economy — likely sacrificing near-term emission reductions in the process — or to shore up a carbon-free grid.
This is what the Treasury Department must grapple with as it writes the rules for the new tax credit. In an exclusive interview with Heatmap, officials from the Department of Energy, which is advising the Treasury, said they want to see existing nuclear plants qualify. But as Daniel Esposito, a senior policy analyst at the nonprofit Energy Innovation, told me, “There's just a lot of layers to how bad this can get.”
Hydrogen already plays an essential, yet small role in the global economy as an ingredient in the production of fertilizer and oil refining. But as the world looks for alternatives to fossil fuels, hydrogen, which burns without releasing carbon, could play a much bigger role by powering industries that are proving difficult to decarbonize with renewable electricity, like shipping, aviation, and steelmaking. The challenge is that it takes energy to make hydrogen in the first place. Today the vast majority is made in a carbon-intensive process involving natural gas or coal.
There is an alternative method, called electrolysis, which extracts hydrogen from water using electricity and doesn’t directly release emissions. But it’s too expensive to be competitive with the fossil fuel version right now. The tax credit in the Inflation Reduction Act could change that, but to qualify, hydrogen producers would have to prove their electricity is carbon-free, too.
That’s where nuclear power comes in.
There are many reasons nuclear plants are considered a good fit for this process. Electrolyzers, the enabling technology for electrolysis, are still relatively new and expensive. Nuclear reactors could power them 24/7, maximizing production.
Nuclear plants are also well-located. They sit near bodies of water, which is necessary for electrolysis. They’re often adjacent to rail lines that could transport the resulting hydrogen. And many are close to heavy industrial sites that could become customers.
There’s potential for efficiency gains — a lot of nuclear reactors already require a bit of hydrogen for their operations, so they could produce their own instead of shipping it in.
And perhaps most thrillingly, nuclear reactors produce a lot of heat. With a more nascent version of the technology called high temperature electrolysis, that heat could be harnessed to boil water into steam, reducing the amount of energy required to extract hydrogen from it.
Unfortunately, there’s one big drawback. The nation’s existing nuclear plants already run at more than 90% capacity. They supply nearly 20% of total annual electricity generation. They don’t exactly have more energy to give.
Esposito and others warn that the hydrogen tax credit is so lucrative that if the Treasury’s upcoming rules allow existing reactors to qualify as a zero-emissions source of electricity, it would create a perverse incentive for nuclear companies to start diverting their power to hydrogen production. Nuclear plants currently earn about $30 per megawatt-hour from energy markets, but Esposito estimates they could earn $60 to $70 per megawatt-hour by producing hydrogen. Though indirectly, this would almost certainly increase U.S. emissions in the near term.
“You could see a world where all of the U.S. nukes pivot to supplying electrolyzers and just print money that way,” said Esposito. “Then you're pulling off 20% of U.S. power, and fossil fuels would be what fill in for that, because we just can't build clean energy fast enough to replace it.”
But Constellation Energy, the country’s largest owner of nuclear plants, with big plans to produce hydrogen, argues that letting its reactors qualify under the tax credit rules isn’t about printing money, but about making clean hydrogen cheap enough that customers actually buy it.
“By lowering the cost of the hydrogen, the tax credit is going to increase the ability of manufacturers and other hydrogen users to decarbonize their operations,” Mason Emnett, senior vice president of public policy at Constellation, told me. “Without that support, there's just not going to be a market for clean hydrogen.”
Top Department of Energy officials seem to agree. “We're very hopeful that [the tax credit] will be applicable to existing reactors,” Dr. Kathryn Huff, assistant secretary of the Office of Nuclear Energy, told me in an interview.
The Department of Energy has long been excited by the synergies between nuclear plants and hydrogen production. In fact, just a few years ago, the agency saw hydrogen as a new market that could save the nation’s nuclear plants, which were shutting down left and right as they struggled to compete with the cheap natural gas of the fracking boom.
But today, natural gas prices are up. There’s a bevy of new government grants and subsidies from the Bipartisan Infrastructure Law and the Inflation Reduction Act to keep nuclear plants open. Now hydrogen looks more like a great business opportunity than a savior for the industry.
Last September, not long after the Inflation Reduction Act was signed, Morgan Stanley issued a report noting that Constellation was poised to unlock new opportunities for its nuclear plants and “attractive returns for hydrogen facilities,” according to S&PGlobal. If the company dedicated just 5% of its capacity to hydrogen production, the report said, it could increase its annual earnings before taxes by $300 to $350 million.
Constellation made its first big move in February, announcing plans to build a $900 million hydrogen production facility in the Midwest that will use 250 MW of its existing capacity. That’s only about 1% of the company’s total nuclear fleet. But to Esposito, it’s a worrisome sign.
“It’s very likely we’d see many other similar announcements,” he told me. “And crucially, as these clean energy resources switch from powering the grid to producing hydrogen, we’d be losing our cheapest existing sources of clean electricity.”
It’s also concerning to climate advocates in Illinois, where Constellation owns six nuclear plants. The state has an ambitious clean energy goal, and is counting on those reactors to be a source of always-available, carbon-free electricity as it shuts down coal plants and builds more renewables.
“Even if it's small, that's still headed in the wrong direction in a world where we are fighting as hard as we can to quickly decarbonize the power sector,” said JC Kibbey, a clean energy advocate with the Natural Resources Defense Council in Illinois.
Constellation doesn’t see that as the company’s problem. Emnett said that much of its nuclear generation is already contracted out to local utilities for the benefit of customers for the next several years, meaning it can’t be “diverted” to hydrogen, at least until those contracts are up. The rest is theirs to sell to whomever wants to buy it. “There's no diversion of electricity,” he said. “There's electricity that is available for use, and we can sell electricity to power a shopping center or we can sell electricity to power an electrolyzer for hydrogen production.”
Constellation also makes the case that if one of its reactors are powering a hydrogen plant on-site, without using the grid at all, there should be no question that the process is carbon-free.
But Rachel Fakhry, a senior climate and clean energy advocate at the Natural Resources Defense Council, said it doesn’t matter whether a hydrogen facility is connected directly to a clean power source or whether it gets power through the grid. The issue is when no new, clean resources have been built to support this big new source of demand. In either case, less nuclear power will be flowing to other customers, and more coal or gas-fired generation will ramp up to fill in the gap. Electrolysis is so energy-intensive that those indirect emissions would be higher than emissions from current hydrogen production using natural gas. “Treasury must account for those induced emissions,” Fakhry said.
Many climate and energy policy experts agree that the resulting hydrogen should not be subsidized, or considered “clean.”
The law itself sends mixed messages to the Treasury about what Congress intended. It says the Department must account for “lifecycle” greenhouse gas emissions from hydrogen production, but it also includes a clause that explicitly permits existing nuclear plant operators to claim the tax credit.
Fakhry argued this should not be interpreted to mean nuclear companies are entitled to the credit. She said one way existing plants could qualify is if they are modified to increase their power output.
Some experts see a middle ground. Adam Stein, director of the Nuclear Energy Innovation program at the Breakthrough Institute, said those induced emissions are not the full picture.
He cited a number of other factors to consider, like the fact that one of the main obstacles to building new sources of clean energy right now is a clogged electric grid. If diverting some nuclear power to hydrogen frees up some room on the grid, that could be a good thing. “The question does not become, in my view, whether nuclear power plants should be eligible for this,” he said. “It’s at what point in the sliding scale of percentage of the tax credit they should be eligible for.” The tax credit is tiered, such that companies can earn different amounts depending on the carbon intensity of their production process.
In a sense, the debate is also about short-term and long-term priorities.
When I asked Huff, the assistant secretary in the Office of Nuclear Energy, whether she felt there were any risks of pairing nuclear and hydrogen, she only noted the shortcomings of not doing so. “I think there are risks in terms of whether or not we can successfully scale up a hydrogen economy,” she said. “There is this risk that it never materializes.”
Her colleague Jason Tokey, the team lead for reactor optimization and modernization chimed in. “As a country, we're not seeking to just decarbonize the power grid, we're seeking to decarbonize the entire economy,” he said. “Clean hydrogen has a critical role to play in that economy-wide decarbonization, and using clean energy sources like nuclear to produce hydrogen really enables that.”
The agency is also excited about the prospect of innovations that could help decarbonize both the grid and the rest of the economy. There are already hours of the day in some places where nuclear plants aren’t needed because there’s so much solar power being produced, said Huff. She said the “operational vision” is to have nuclear operators learn how to switch back and forth between serving the grid and offloading their power into hydrogen when it’s not needed, which will enable more renewable resources to come online. “It is absolutely imperative that we make sure nuclear plants can flex with the grid.”
Emnett said Constellation is planning to test this out at Nine Mile Point, a nuclear plant in upstate New York that received $5.8 million from the DOE for a hydrogen production pilot project.
“We are excited about the possibility of creating flexibility for nuclear plants,” he said. “You can start to think about a system where nuclear with flexible hydrogen production is pairing with variable wind and solar and batteries in a decarbonized future world. And so we're at a point now where we're proving out those capabilities.”
But without the tax credit, he said, “there's just not any conversation, there's no ability to explore the innovation, because we never get out of the gate.”
Whether that gate should be swung open or shut is now in the hands of the U.S. Department of Treasury.
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Current conditions: After walloping Bermuda with winds of up to 100 miles per hour, Hurricane Imelda is veering northeast away from the United States • While downgraded from a hurricane, Humberto is set to soak Ireland and the United Kingdom as Storm Amy in the coming days and bring winds of up to 90 miles per hour • Typhoon Matmo is strengthening as it hits the Philippines and barrels toward China.
The Department of Energy is canceling two regional hydrogen hubs in California and the Pacific Northwest as part of a broader rescinding of 321 grants worth $7.5 billion for projects nationwide. Going after the hydrogen hubs, which the oil and gas industry lobbied to keep open after President Donald Trump came back to office, “leaves the agency’s intentions for the remaining five hubs scattered throughout the Midwest, Midatlantic, Appalachia, the Great Plains, and Texas unclear,” Heatmap’s Emily Pontecorvo wrote yesterday.
The list of canceled projects that Emily got her hands on “does seem to confirm that blue state grants were the hardest hit,” she wrote. But, she found, “many would actually have benefitted Republican strongholds,” including a $20 million grant for a manufacturing plant in Texas that was slated to create 200 jobs.
Tesla’s global deliveries rose 7% in the third quarter, hitting a new record as Americans rushed to buy electric vehicles before the federal tax credit expired on September 30. The automaker delivered 497,099 vehicles in the three months leading up to that date, up from 462,890 in the same period last year, according to the Financial Times. That was well above analyst forecasts of 444,000.
That may do little to turn around the headwinds blasting the EV giant. While the company benefited from buyers scrambling to tap the federal EV tax credit, Tesla sank to its lowest-ever share of the electric vehicle market in August as drivers flocked to offerings from other automakers. It’s not just a problem in the U.S. As Heatmap’s Matthew Zeitlin wrote last month, “Thanks to CEO Elon Musk’s association with right wing politics in the U.S. and abroad, and to fierce competition from Chinese EV leader BYD, Tesla’s sales have fallen dramatically in Europe. Globally, BYD overtook Tesla in sales last year.”
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Conservative leader Kemi Badenoch. Dan Kitwood/Getty Images
Kemi Badenoch, the leader of the British Conservatives, has vowed to repeal the United Kingdom’s landmark climate law if her party, colloquially known as the Tories, wins the next election. Eliminating the Climate Change Act, passed almost unanimously under a Tory government in 2008, would dismantle controls on greenhouse gas emissions and remove what The Guardian described as “the cornerstone of green and energy policy for successive governments” for the past 17 years.
The move rankled past Tory leaders. Former Prime Minister Theresa May condemned the campaign pledge as a “catastrophic mistake.” Calling it a “retrograde” step, she said that “while consensus is being tested, the science remains the same.” Alok Sharma, the former Tory minister who led the COP26 climate summit in Glasgow in 2021, told The Guardian in a separate article that a repeal risked “many tens of billions of pounds of private sector investment and accompanying jobs.”
Sea ice in Antarctica reached its third-smallest winter peak extent since satellite records began 47 years ago, according to a new analysis by Carbon Brief. Provisional data from the U.S. National Snow and Ice Data Center showed Antarctic sea ice reaching a winter maximum of just under 6.9 million square miles as of September 17. That’s nearly 350,000 square miles below the average between 1981 and 2010, the historical baseline against which recent changes in sea ice extent are compared. The “lengthening trend of lower Antarctic sea ice poses real concerns regarding stability and melting of the ice sheet,” one expert told the publication.
The finding comes as a “groundbreaking” study the European Geosciences Union published Thursday in the journal Earth System Dynamics found that Antarctic sea ice has emerged as a key predictor of accelerated ocean warming. Using Earth system models and satellite images from 1980 to 2020, the researchers found higher sea ice extent enhances cloud cover, which has a cooling effect overall by reducing incoming solar radiation. As a result, ongoing sea ice loss is linked to larger reductions in clouds, stronger surface warming, and even more ocean heat uptake, accelerating the cycle.
Duke Energy plans to meet surging demand for electricity by increasing its natural gas and battery capacity, keeping coal plants open for up to four years longer than previously estimated, and evaluating new sites for nuclear reactors. The 100-page biennial proposal published this week dials back plans for more renewables such as wind and solar. It also pushed back the earliest start date for a new reactor to 2037, declined to commit to either small modular reactors or large traditional units, and said the utility still needs extra protections against cost overruns before embarking on construction.
In the meantime, the added years of coal burning “will result in millions of tons in additional greenhouse gases over the next decade when combined with other proposed changes to the utility’s fuel mix,” Inside Climate News reported. In a statement to Axios, North Carolina Governor Josh Stein, a Democrat, called on the state’s utilities commission to “require significant changes” and condemned Duke for “retreating from the state’s clean energy future.”
New research by a team of scientists from the U.K. and New Zealand has found that new analytical methods could bolster conservation breeding programs by offering a better understanding of why eggs don’t hatch. The researchers used fluorescent dyes to discover that nearly 66% of 174 unhatched eggs examined in the study had been fertilized, whereas previous methods suggested that only 5.2% had been fertilized. “There are many different factors that contribute to breeding success,” Gary Ward, a co-author from the London-based ZSL Institute of Zoology, said in a statement, “and the more understanding we can have into why an egg might not hatch, the more we can refine our care for these birds and the better chance of recovery we can give them.”
And more on the week’s most important fights around renewable energy projects.
1. Ocean County, New Jersey – A Trump administration official said in a legal filing that the government is preparing to conduct a rulemaking that could restrict future offshore wind development and codify a view that could tie the hands of future presidential administrations.
2. Prince William County, Virginia – The large liberal city of Manassas rejected a battery project over fire fears, indicating that post-Moss Landing, anxieties continue to pervade in communities across the country.
3. Oklahoma County, Oklahoma – The Sooner state legislature on Monday held a joint committee meeting on solar and wind setbacks featuring prominent anti-wind advocates.
4. Tippacanoe County, Indiana – The developers of a large-scale solar project are suing the county over being rejected.
5. Dane County, Wisconsin – The Wisconsin Public Service Commission approved Invenergy’s Badger Hollow wind project – the state’s first new fully-permitted wind energy project in more than a decade.
A conversation with Courtney Brady of Evergreen Action.
This week I chatted with Courtney Brady, Midwest region deputy director for climate advocacy group Evergreen Action. Brady recently helped put together a report on rural support for renewables development, for which Evergreen Action partnered with the Private Property Rights Institute, a right-leaning advocacy group. Together, these two organizations conducted a series of interviews with self-identifying conservatives in Pennsylvania and Michigan focused on how and why GOP-leaning communities may be hesitant, reluctant, or outright hostile to solar or wind power.
What they found, Brady told me, was that politics mattered a lot less than an individual’s information diet. The conversation was incredibly informative, so I felt like it was worth sharing with all of you.
The following chat was edited lightly for clarity. Let’s dive in:
Okay, so tell me first why you did this report.
Clean energy deployment is getting increasingly challenging for a variety of reasons. What’s happening on the federal level is one thing, but something we don’t talk about much in the climate movement is what’s happening locally, what actually determines the odds of a project being successful and incorporated into the grid.
The side of the story we often hear that’s the loudest is from people at the local level who are opposed to these projects, and it limits our ability to understand the nuances. It’s not always that everyone opposes these projects in their community — that’s often not the case. We talked to several farmers in this report who are using these projects as a lifeline to keep farms in their families’ hands, generate income, preserve their farms. These projects can provide an income lifeline for these farms.
Something we tried to accomplish with this report was to understand the different perspectives, what was driving them. The only way we could do that was by going out and talking to these people in their own communities, on their own land.
The group we worked with has a very conservative background. They work on Republican campaigns. They’re very involved in local government relations. And they were the ones who were able to go out and interview these folks about what this means for their communities.
A few weeks ago, I interviewed the head of the League of Conservation Voters about the way that renewables are perceived as culturally left wing. Are there any takeaways in your research about how to deal with that?
You know, I expected to hear a little bit more of that political ideological leanings than what we actually got in these interviews. Our partners went out and interviewed seven folks; four of the case studies were in Pennsylvania, and three of them were in Michigan. It was a mix of local government officials and landowners themselves, most of whom were farmers. And they asked them, What are you hearing in your community? Where’s the opposition coming from?
I’d assumed this would be a left-versus-right, red-versus-blue issue, but this is not what we heard. We heard a lot about a lack of information or misinformation in these communities and the crucial incomes these projects can provide to landowners themselves. Again, everyone in this report that was interviewed identified as a conservative or said they were Trump supporters. It’s interesting to hear that hasn’t impacted their views of clean energy at large. They were either really happy with the projects they’d sited or still trying to get projects sited years and years later.
When you talked about misinformation, what came up?
The sizing of these leases. We heard about fears in communities that land was going to be completely overtaken over by solar or wind.
Some of these farmers said one of the biggest things they heard from their neighbors was that we’re giving away hundreds and thousands of acres to solar projects and wind projects and taking away land that should go towards crops and food. We’re hearing from these farmers that a lot of this land is no longer fertile, so providing a temporary solar lease allows that farmer to continue generating revenue while letting that land breathe.
People really had this fear of farmland being completely converted to energy production. I don’t know where a lot of that came from. We asked if that was something spread on the internet and we heard, Neighbors talk and there are Facebook groups. So there’s this overblown fear about the size of projects.
When it comes to these interviews, it does seem like you spoke to a lot of people who believe what you say. But did you speak to people who don’t believe this stuff? Because right now we’re seeing cases where opposition is either winning over county commissioners or voting out of office local officials who believe exactly what you heard from some folks.
We’ve heard so much of the opposition. It’s trending, really growing across the country. And understanding the root of why opposition is there is important. But so often we don’t hear the other side of it, these really nuanced perspectives.
There are these folks in the middle who are really thematic in these interviews — this is not about energy but a core American property rights issue. That resonates with people regardless of party.
The other piece is, there’s fear in communities of being the person to speak out against groups that are loud, the ones who want to kick people out of office over energy things. So it was really important to elevate these voices and in the interviews just made a lot of common sense. This was about elevating voices that don’t always get a seat at the table in discussions around these issues.