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The story of natural gas taxes and bans this election cycle is far more nuanced than that.

Berkeley, California and Washington State put the transition to all-electric buildings on the ballot last week, and in both cases, it seemed to fail the test. Voters in Berkeley overwhelmingly rejected a proposed tax on natural gas that would raise money for electrification projects. In one fell swoop, voters in Washington State repealed several of their nation-leading policies that encourage electric over gas appliances and barred cities and towns from passing similar policies in the future.
On the face of things, the results appear to show voters retreating from ambitious climate action and rejecting electrification — a concerning signal at a time when federal support for decarbonization is about to evaporate and state and local leadership to cut emissions will become paramount. But the specific circumstances behind each vote suggest that’s not the whole story.
The Berkeley proposal was submitted by a small group of activists who knew it was more ideologically driven than politically feasible, and it proved to be controversial even among diehard climate advocates in the city. The Washington State initiative slid onto the ballot just three months before the election and ultimately passed on a razor thin margin. The two cases offer distinct lessons and takeaways, but to climate advocates, a budding backlash to electrification is not one of them.
The Berkeley proposal, otherwise known as Measure GG, was largely written by one person. Daniel Tahara is a software engineer at Tesla by day, and a climate activist by night with 350 Bay Area, a local chapter of the national climate advocacy group 350.org. For the past few years, he’s been animated by a question that I, too, am frequently asking: How are most people going to afford the steep cost of retrofitting their homes to use electric appliances?
To Tahara, finding an answer became more pressing last year when the Bay Area Air Quality Management District, a regional authority that regulates pollution, approved rules to phase out the sale of gas appliances. Starting in 2027, Berkeley residents will no longer be able to purchase a new gas-fired water heater if their old one fails — they’ll have to go electric. The rule applies to gas-fired furnaces and boilers in 2029. “We've got a lot of old buildings,” Tahara told me. “They would need a lot of electrical work to support new appliances, and people just don't have the money for it.”
His solution was Measure GG, an ordinance that would have imposed a tax of $2.96 per therm of natural gas used by buildings larger than 15,000 square feet. The estimated $26.7 million per year raised by the tax would go into a fund to help everyone else in town pay for electrification retrofits.
Tahara rallied a number of local environmental and community groups around the idea, but he did not have the support of the bigger non-profits and advocacy orgs that work on electrification policy in California, including the Building Decarbonization Coalition, Rewiring America, RMI, the Sierra Club, or the Natural Resources Defense Council.
"Any large blanket tax hike without input from those it would impact, no plans for a managed transition to the new fees, and no analysis on who is most likely to benefit or be burdened is likely to face real challenges with voters,” Alejandra Mejia Cunningham, the senior manager of building decarbonization for the NRDC, told me via email. “It is very important for tax-based policy proposals to be robust and thoroughly socialized."
I also talked to several Berkeley-based electrification supporters who voted no on Measure GG. Tom Graly, who chairs a local electrification working group, told me part of the reason the policy proved so controversial is that it singled out some of the city’s most beloved institutions, such as the Berkeley Bowl supermarket, a local chain, and the Berkeley Repertory Theater. The theater estimated the tax would cost it up to $69,000 per year, while converting off of gas would cost millions. “This well-intentioned ballot measure with its immediate implementation would be very harmful to our struggling organization,” Tom Parrish, the theater’s managing director said in a statement for the “No on GG” campaign.
Tahara based the tax on estimates for what’s called the “social cost of carbon,” or the projected economic damage that every additional ton of carbon dioxide put into the atmosphere will cause. But the number Tahara chose was on the high end — more than double the number the Biden administration uses when it weighs the costs and benefits of new regulations on carbon. If passed, the tax would more than double the cost of using natural gas in large buildings. He said some national groups gave him feedback on the proposal, like phasing in the tax over time and building in more exemptions, which he might consider for a future version. But he and his partners on the measure wanted to preserve their core thesis, which was that climate damages are already happening and are unaccounted for.
“I think part of our responsibility as local activists is to put out new ideas, to push the status quo,” he said. “I don’t think there’s been a lot of that that’s been happening in the last couple years.”
In Tahara’s view, the measure failed because the opposition campaign had a lot more money, and because even though Berkeley is often called the birthplace of the electrify everything movement, there’s still a lot of people in town who are completely unaware of the harm natural gas causes to the climate and to public health. On that, Graly agreed. “There's a huge education gap,” he said. “People just don't think about hot water. They turn on the faucet and the water is hot, and they're happy.”
Initiative 2066 in Washington State was a wide-ranging proposal to both roll back existing policies and preempt future ones. It was so wide-ranging, in fact, that its opponents believe it’s illegal under the state’s “single subject” rule for ballot measures, and they plan to fight it in court.
If the measure stands, it will invalidate the state’s nation-leading residential and commercial energy codes that strongly incentivize builders to forego gas hookups. It will remove a provision in state statute that requires Washington’s energy codes to gradually tighten toward zero-emissions new construction by 2031. It will repeal key parts of a law the state legislature passed earlier this year that require Washington’s biggest utility, Puget Sound Energy, to consider alternatives to replacing aging gas infrastructure or building new gas pipelines. And it will ban cities and towns from passing any local ordinances that “prohibit, penalize, or discourage” the use of gas in buildings.
The initiative was one of four put on the ballot by Let’s Go Washington, a group bankrolled by hedge fund manager and multimillionaire Brian Heywood, and had the Building Industry Association of Washington as its primary sponsor, alongside a number of other pro-gas, pro-business, and realty groups.
There’s no doubt 2066 is a significant setback in the state’s progress toward cutting carbon emissions. But when I asked climate advocates in Washington how they were interpreting the outcome, they pointed to a handful of reasons why they weren’t too concerned about public sentiment around decarbonization.
First, the vote was incredibly close, with just over 51% of voters checking “yes.” Second, another initiative Let’s Go Washington put on the ballot — 2117, which would have repealed the state’s big umbrella climate law that puts a declining cap on emissions — unambiguously failed, with 62% voting “no.” Third, they argue the split reflects confusion about what 2066 would do.
The “yes on 2066” campaign sold it as a measure to “protect energy choice” and “stop the gas ban,” warning that otherwise utility rates would increase and the state would force homeowners to pay tens of thousands of dollars to retrofit their homes. There are kernels of truth to the messaging — the state’s building codes seriously limit developers’ ability to put gas hookups in new construction without outright banning them. The new law affecting Puget Sound Energy is primarily a planning policy that requires the utility to consider alternatives to gas infrastructure, but it doesn’t force anyone to get off gas, and regulators are likely to approve only those alternatives that save ratepayers money.
“I think voters were responding to a lot of misinformation and fear-mongering,” said Leah Missik, the Washington deputy policy director for Climate Solutions, a regional nonprofit that helped spearhead the “no on 2066” campaign. She emphasized that it was put on the ballot in July, giving groups like hers only a few months to drum up their response to it, whereas they knew about 2117 for over a year, and thus had a lot more time to educate voters on what that initiative would do.
The confusion probably also wasn’t helped by the fact that the policies 2066 repealed were incredibly wonky, dealing with building codes and utility planning.
“I think that given all of those headwinds, the fact that about half of Washingtonians still voted against initiative 2066 is a testament to how popular climate action is in the state,” Emily Moore, the director of the climate and energy program at the Sightline Institute, a Seattle-based think tank, told me.
Sightline didn’t campaign for or against the measure, but Moore had some takeaways from the vote. She said environmental groups spent a lot of their energy countering the narrative that there was a gas ban, which may have inadvertently reinforced the idea. One lesson for the future might be to put more emphasis on the benefits of electrification, like the fact that heat pumps provide both heating and cooling and half of the state doesn’t currently have air conditioning. The other anti-climate measure, 2117, may have failed so decisively because Washington’s emission cap policy has raised more then $2 billion in funding for projects that people are already seeing the benefits of, like free transit passes.
“Likely a no vote on that one felt like getting to keep good things,” she told me. “I think we have more to do to show that getting off of gas means getting good things too.”
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Emerald AI’s Arushi Sharma Frank wants to apply “connect and manage” to AI development.
Everyone knows now how great Texas is for renewables. Its particular combination of sun, wind, and permissive market structure has led the state to overtake even California in clean energy generation. At the same time, however, the state is nervous about data centers and their effects on the grid, even passing a law this past legislative session to more closely examine the data center industry and to establish protocols for curtailing data center operations when electricity is tight.
But what if you could do for data centers what Texas has done for renewables? That’s roughly the idea Arushi Sharma Frank, who helped bring Tesla’s energy business to Texas and is now an advisor to Nvidia-backed Emerald AI, has come up with.
On Friday, Frank filed a proposal with ERCOT, the electricity market that sits outside federal regulation and covers about 90% of the state, that would reform its rules to allow data centers to connect to the grid much faster. The rough idea is that by applying ERCOT’s existing “connect and manage” system for getting new electricity generators on the grid to new large demand sources like data centers, the data centers can get power more quickly — if they can handle not getting access to the grid sometimes.
The proposal “creates the basis of connect-and-manage of load using the existence system that ERCOT already has for generators and batteries,” Frank told me
Her proposal would reward data centers for being able to modulate how much electricity they need in the interconnection process. This could mean that data centers get credit for curtailment and for having their own generation on site. And crucially, unlike a widely-panned proposal by PJM Interconnection to essentially mandate that some customers be forced to curtail their energy use, the ability to curtail or self-power a data center would result in faster interconnection, not simply the cost of doing business.
Frank pointed to chip designer Nvidia’s recent announcement that it would back a Virginia data center using Emerald AI software to smooth out power usage, saying she wants to be “able to actually do that at scale” for “any developer in Texas.”
Getting power for data centers is one of the biggest barriers to getting them built, and so anything that can deliver faster interconnection without foisting enormous new costs on the system as a whole counts as a win-win. With this system in place, Frank told me, data centers and other large loads could “invest in firming their own power needs before major transmission upgrades get built, enabling them to voluntarily choose to be flexible participants on the grid in exchange for earlier interconnection.”
Texas has been able to deploy wind, solar, and batteries so quickly, many energy policy experts and developers say, precisely because of connect and manage, whereby new generators can get on the grid after just a local grid study, without having to examine their effect on the whole system, which most of the country’s grids require. After these system-wide studies often come expensive transmission upgrades, the costs of which are passed on to all electricity customers in the form of higher bills. This process, Duke University’s Tyler Norris has written, “can often make generators financially unviable, introduce uncertainty for project economics, and delay interconnection by years.”
That level of extensive review is partially responsible for the interconnection delays seen in the rest of the country, which can stretch to as long as several years. Projects in Texas take on average two years to complete the interconnection process, according to the trade group Advanced Energy United.
The trade-off for allowing new resources onto the grid without those upgrades means that they’re more likely to be curtailed if the amount of electricity they generate overwhelms the grid — the “manage” part of “connect and manage.” Frank made an analogy to me between a data center and an 18-wheeler, which might be allowed to start its journey sooner if it agreed in advance to get off the road in the case of heavy traffic.
Frank delivered her proposal along with support from a group of big-name and deep-pocketed stakeholders, including former Loans Program Office chief Jigar Shah, renewables developers like Cypress Creek Renewables, and a number of datacenter developers and technology providers.
In comments on the proposal, Agentic Infrastructure, which works on powering data centers, said that Frank’s plan will allow for “private capital investment to energize with dispatchable service ahead of the timeline required for expansion of firm network service,” which would ensure that “the risks of serving rapid load growth are managed privately while the economics benefits of load growth are socialized to the public rate base.”
In other words, more users of electricity would come online faster, allowing them to make payments to utilities and split up fixed costs among all customers, while the developers would take on the risk of not always being able to power their data centers.
In a best-case scenario, the proposal could be approved at an ERCOT board meeting early next year, Frank said.
Allowing flexible large loads to connect faster is “the most viable way for loads to actually invest with their complex webs of financing and technology partners in creating dispatchability,” she added.
“Everyone is talking about” how important dispatchability is, Frank told me, but “no one is doing anything about it, except for the proposal at PJM and random one-off deals that folks like Google are doing.”
“What makes ERCOT different,” Frank said, “is that it is a place that gets national attention, and it can get national attention because things generally just happen faster there.”
Current conditions: With colder air spilling southward from Canada, snow is expected in New England and Upstate New York • Winds of up to 50 miles per hour are blasting the West Coast • Temperatures of nearly 108 degrees Fahrenheit are roasting Senegal.

It’s Election Day. Not every race has significant implications for climate change, but at least a few do. As Heatmap’s Emily Pontecorvo wrote, those races include:
One other race I’ll add, since it’s one of the most closely-watched elections in the nation, is the one for New York City mayor. While frontrunner Zohran Mamdani has so far said little about energy besides opposing a controversial gas pipeline into the five boroughs, the left-wing Democratic nominee said he would support construction of new nuclear power plants upstate at the last debate. City Hall has limited say over state energy policy, but the mayor does control the contracts the city government writes with the state-owned utility, the New York Power Authority, which is currently working on building a new nuclear plant. If his remarks at the final debate are any indication, Mamdani may endorse contracts to buy power from nuclear power plants as well as the wind and solar he vocally supported as a state lawmaker. “If he can buck the trend of the environmental left’s hostility to nuclear, he could demonstrate to New York City — and to democratic socialist supporters nationwide, who already view him as a likely successor to (notoriously antinuclear) Vermont Senator Bernie Sanders — that the left can think rationally about the energy system, its affordability, and the wide scope of the climate problem,” the writer Fred Stafford wrote in an op-ed for Heatmap this morning. “That would truly be charting a new path.”
On stage at the Abu Dhabi International Petroleum Exhibition and Conference yesterday, Secretary of the Interior Doug Burgum announced the United States’ support for a critical minerals “club” of countries that will trade the metals needed for energy and weapons without relying on China. “In the last few weeks, the United States has announced a framework for creating a club of nations to be able to trade … [and for] refining and processing critical minerals,” Burgum said at the Adipec conference, according to E&E News.
As Heatmap’s Katie Brigham put it recently, “everybody wants to invest in critical minerals startups,” including the Trump administration. The U.S. military’s Office of Strategic Capital put up a $620 million loan for Vulcan Elements’ efforts to build a factory to produce 10,000 metric tons of rare earth magnets, according to The Wall Street Journal. The Department of Commerce is chipping in another $50 million, while private investors contribute $550 million to a deal that involves ReElement Technologies, a startup that purifies and recycles rare earth metals. Meanwhile, the Export-Import Bank of the U.S. signed onto a letter of interest promising to provide as much as $191 million in financing to Locksley Resources’ rare earths project in California’s Mojave desert.
Bloomberg Businessweek has a sweeping new dispatch from the rainforests of Guinea, where China recently completed a railroad that allows mining companies mostly controlled by Beijing to tap one of the world’s largest and richest iron ore deposits. At $23 billion, the project is Africa’s biggest ever mining project and could make the tiny West African nation the continent’s No. 2 mineral exporter. “Never before has China held this level of pricing power over the seaborne iron ore trade,” Tom Price, head of commodities strategy at Panmure Liberum, told the magazine. “Expect it to start calling the shots here.”
The U.S. has largely struggled to get a leg up on China in critical minerals. As I wrote here last month, the world’s leading commodities traders have urged Western governments to focus on refining metals, not just mining them. In September, I broke news in Heatmap about an Ohio startup called Xerion extending its novel approach to processing mineral ore from cobalt to gallium.
Utility giant Southern Company has signed deals for at least 7 gigawatts of data centers and other large power users, but has a pipeline of more than 50 gigawatts in the works, the company said in its third-quarter earnings last week. The company, which controls some of the largest utilities in the Southeast, is requiring “strong customer protections and credit provisions” to protect against rate increases to serve the new loads, Chief Financial Officer David Poroch said on the call, according to Utility Dive. “Our pipeline of large load data centers and manufacturers continues to be robust across our electric subsidiaries. The total pipeline remains more than 50 gigawatts of potential incremental load by mid 2030s.”
Poroch’s price caveats track with a trend Matthew Zeitlin wrote about recently, of utilities bending over backward to convince even their investors that ratepayers won’t be on the hook for the cost of serving the artificial intelligence buildout. With opposition to data centers high and rising, they’re trying to avoid a popular backlash.
Nineteen Democrats in the New York State Assembly want Governor Kathy Hochul to reject a mandate for electrifying new buildings. The signatories to a letter calling on the governor to halt plans to ban gas hookups in new construction include lawmakers from New York City, Long Island, and upstate, along with Assembly Majority Leader Crystal Peoples-Stokes. The letter was sent to the governor Monday, but Hochul already said she’d consider the request, Politico reported.
Another key test Mamdani's likely election will set up is how highly he prioritizes opposition to the Northeast Supply Enhancement pipeline designed to carry gas from Pennsylvania's fracking fields to stoves and furnaces in the outer boroughs. Hochul supports the project, which backers say will bring down the cost of a fuel that -- even in the most ambitious decarbonization scenarios -- New York will continue to need for many years. After running a campaign laser-focused on affordability, his approach to the project may reveal how important opposing fossil fuel infrastructure remains for the left wing of the Democratic Party.
It’s not your typical kind of media deal. The Cool Down, a climate and sustainability website known for its explainers about sustainable lifestyles and how-to guides, sold itself to the clean-energy company Palmetto. The North Carolina-based company, which leases solar panels, batteries, heat pumps, and other electrified technologies to consumers, has been expanding in recent months, as Heatmap’s Robinson Meyer wrote in a scoop on the acquisition yesterday. “By bringing our companies together, we’re pairing trusted consumer education with real, accessible energy solutions. Together we intend to empower households to take control of their energy future and benefit from the transition that’s already underway,” Chris Kemper, the founder and CEO of Palmetto, said in a statement.
The New York mayoral frontrunner has an opportunity to shift the left’s increasingly nonsensical position on a critical carbon-free energy source.
Tuesday, November 4, New Yorkers go to the polls to elect their new mayor. They face a three-way choice — Democratic candidate, state assemblyman, and suddenly prominent democratic socialist Zohran Mamdani; Republican candidate and battery foe Curtis Sliwa; and independent candidate and former governor Andrew Cuomo.
While Mamdani’s surprise win in June’s Democratic primary electrified New Yorkers of all political persuasions, this cycle has been a relatively sleepy one for climate issues. Neither of the two frontrunners, Mamdani and Cuomo, has been keen to draw much attention to himself on clean energy.
At a televised debate two weeks ago, however, things got interesting.
“New nuclear power plants can help bring down the rising cost of utilities in New York State, yes or no?” asked moderator Brian Lehrer. “Upstate? They’re already starting, yes,” answered Sliwa, referring to Governor Kathy Hochul’s landmark announcement in June that she was ordering the New York Power Authority, the state’s public power utility, to develop a gigawatt of new nuclear energy-generating capacity upstate. Couched in atomic-powered abundance, the plan distinguishes her from Democrats nationwide primarily because she has the largest state-owned utility at her disposal, whereas other governors, from both parties, merely intimate that private developers should really get started.
To the untrained ear, Mamdani’s answer at the debate was anodyne: “I think it’s something worth exploring.” Prompted by Cuomo about whether that constituted “a yes,” Mamdani confirmed, “yeah,” to which Cuomo evinced surprise and then a “yes” of his own. On the surface, all three candidates agreed.
But in affirming the role of new nuclear plant construction to meet the state’s energy needs, Mamdani put himself at odds with a number of environmental justice nonprofits that have become fixtures of the city’s progressive left — that is, his own political home base.
“We unequivocally oppose any new nuclear facilities in New York State.” So begins a letter signed by 153 environmental justice groups, issued following Hochul’s “Future Energy Economy Summit” last fall, where she first raised the prospect. The signatories include chapters of prominent activist Bill McKibben’s advocacy groups Third Act and 350.org, Bezos Earth Fund awardee WE ACT for Environmental Justice, Food and Water Watch, chapters of the Sierra Club, and solar industry boosters Vote Solar, among many others.
When the governor advanced her nuclear plan this year, environmental organizations responded with anger. NY Renews — a coalition of groups that successfully lobbied for the state’s landmark climate law, the Climate Leadership and Community Protection Act of 2019, which was signed by Governor Cuomo — issued a statement opposing “the expansion or further investment in nuclear energy production.” An op-ed from the New York City Environmental Justice Alliance and New York Lawyers for the Public Interest called Hochul’s proposal a “dangerous distraction” from building renewables. In a separate comment issued alongside these same groups, decades-old Brooklyn Latino community organization UPROSE urged the state to avoid the “expensive and unrealistic” path of nuclear development.
The political appeal of nuclear today is undeniable. Six in ten Americans want more nuclear energy, according to a recent Pew poll. Not only is it the energy source with the smallest divide in enthusiasm between the parties, including both clean and fossil-fueled sources, the most common reason respondents gave Pew for supporting nuclear was its decarbonization potential.
New York’s nuclear energy “provide[s] reliable, continuous, predictable, emissions-free supply and must remain online to maintain electric system reliability,” according to a recent filing from the New York Independent System Operator, which manages the state’s grid. Since it takes up less land and requires fewer transmission lines than purely renewable alternatives, it could mitigate a fiery political tension in New York and elsewhere. And it’s almost universally held up as essential by industrial labor unions, for the clean, firm power it produces, and for the high-paying careers it supports. “Nuclear energy, being the cleanest, zero-emission, and most efficient way to produce energy, should be a no-brainer,” Frank Morales, the president of New York’s Utility Workers Union of America Local 1-2, which represents thousands of ConEd utility workers in the city, told me by email.
And yet despite his statement during the debate, nuclear’s decarbonization bona fides, its strong bipartisan appeal, and its acclaim from labor unions, Mamdani — a democratic socialist champion of public power and the clean energy transition — still hasn’t endorsed the governor’s plan for public nuclear power development.
This tracks an ideological inconsistency within the environmental left that has become less tenable as the need for clean power has grown more urgent. “It’s a belief system that these nonprofit groups have wrapped themselves in, and one that they have not yet been motivated to seriously reexamine,” Charles Komanoff told me. He’s the director of the Carbon Tax Center and a decades-long stalwart of New York City progressive activist groups, spanning environmental and transportation causes, among others.
Komanoff has had to reexamine his own beliefs on nuclear. During the 1970s and ’80s he opposed nuclear power, primarily for its past operational inefficiencies. He spoke before a crowd of thousands at an antinuclear protest in Washington in 1979, after the Three Mile Island incident. The premature closure of New York’s Indian Point nuclear power plant in 2021, however, finally tipped him into public nuclear advocacy. The “true Indian Point disaster,” he wrote in an analysis earlier this year, is that “emissions are mounting, and in New York City and other downstate areas formerly supplied by Indian Point, electricity is getting costlier and less dependable.”
Ben Furnas, the former director of the Mayor’s Office of Climate and Sustainability under Bill de Blasio — himself an iconic New York City progressive — has experienced this inconsistency firsthand. (De Blasio also cut his teeth in the antinuclear movement, telling The New York Times in 2019 that he’d marched against Three Mile Island in his youth.) “A lot of the old guard antinuclear activism sits uncomfortably in a broader, clear-eyed climate coalition,” Furnas told me. Mamdani, however, appears to take a “more expansive view of what a decarbonizing energy system looks like,” he said.
As a member of New York’s State Assembly, Mamdani backed a campaign to cancel the repowering of an ancient, highly-polluting gas peaker plant in Astoria, Queens, squarely in his district, that was slated to retire. He also aligned himself with the effort by Public Power NY, a coalition between the Democratic Socialists of America and environmental groups, to “build public renewables.” Both maneuvers eventually paid off — in 2021 the state denied the repowering project’s permit, and the old power plant later closed down for good; and in 2023 Hochul signed into law a (heavily rewritten) version of the Build Public Renewables Act, turning activist goals into implementable policy for NYPA.
Two years later, NYPA has made remarkable progress building state capacity in renewables. Its development pipeline of wind, solar, and battery projects now amounts to about 7 gigawatts, though most of that is still in very early stages. But Public Power NY has spent that time dismissing the progress from the sidelines, charging Hochul with “refusing to lead on climate.” While it’s true that Hochul is far overdue on implementing parts of the 2019 climate law, a huge political challenge as energy affordability becomes a top concern, Public Power NY has responded by demanding that the governor ramp up NYPA’s renewables development to a staggering 15 gigawatts deployed by 2030. Mamdani spoke at a rally for that demand just a month into his mayoral campaign last November.
Neither energy nor public power, however, has been at the forefront of his campaign, especially in these closing months. Instead, Mamdani’s laudable message discipline has been trained on affordability in New York City: free childcare, free buses, city-owned grocery stores, and temporarily freezing the rents of the city’s nearly 1 million rent-stabilized apartments. He’s even taken a decidedly pro-abundance position on housing in interviews with the Abundance co-author Derek Thompson and on the Odd Lots podcast.
It would be reasonable to ask, Even if Mamdani had aggressively talked up nuclear, what would he be able to do about it as mayor? As it turns out, there are a few routes that a Mayor Mamdani could take to influence nuclear development.
First and foremost, for half a century, the “governmental customers” of New York City have been critical sources of revenue for NYPA. The city government, the Metropolitan Transit Authority, and the New York City Housing Authority, for example, remain NYPA’s largest customers, dating back to when the state acquired Indian Point Unit 3 from ConEd during the 1974 financial crisis. While the MTA is infamously not under the mayor’s purview, at least two of those major customers are — and their power contracts are set to expire at the end of 2027, during the next mayor’s term. That’s both a bargaining chip for the next mayor and a potential avenue for the city government to subsidize, at least in part, the cost of a new, NYPA-developed nuclear plant.
Second, de Blasio already set a precedent for applying the city’s progressive tax base to help shoulder the cost of statewide clean power initiatives. To help solve an imbalance in renewable energy deployment upstate and downstate, the state created the “Tier 4 Renewable” program in 2020, at the urging of the de Blasio administration, to subsidize transmission projects that would deliver renewable energy into New York City. The enormous cost of the program, however, fell on the backs of ratepayers statewide, in proportion to their electricity consumption.
Seeing the unevenness in a program that largely helps the city, the de Blasio administration struck a deal in 2021 with the state’s clean energy procurement agency, the New York State Energy Research and Development Authority, to purchase far more Tier 4 renewable energy certificates than would have otherwise been allocated to the city based on its electricity demands via its utility, NYPA. As a result, the rest of the state’s ratepayers would save, in the city’s calculation, a few billion dollars. It’s not hard to imagine a similar possibility for the next mayor to advance the state’s nuclear policy, especially when it’s being led by NYPA.
Finally, the city’s Local Law 97 — a comprehensive law passed in 2019 requiring large buildings to meet escalating greenhouse gas emission limits or else face fines — presents another opportunity. Mamdani has spoken during the campaign about the need for the city to procure heat pumps for landlords to install in compliance with the law. But landlords also have to decarbonize their utility electricity supply, which they can do by purchasing RECs. With the recent cancellation of one of two projects that would have supplied said RECs, the real estate industry will soon be hungry for more supply.
That’s where nuclear could come into city policy. The city council could amend Local Law 97 so that nuclear energy likewise delivered into the city — from either existing or solely new sources — could be used to comply, as well. That would put landlords in a position of subsidizing a new state nuclear project, just like the Tier 4 program put them in a position to subsidize new state transmission projects. That could be a way for a Mayor Mamdani to throw them a bone amid his attacks on unaffordable housing prices.
The mild nuclear support at the debate was encouraging, Komanoff, the longtime progressive activist, told me. But “it would’ve been huge-er if Mamdani had said something specific and favorable about Governor Hochul’s gigawatt announcement over the summer.” The governor, who in September endorsed Mamdani in the race, is presumably thinking the same thing, having made NYPA — the same public power authority behind the Build Public Renewables campaign that Mamdani championed — the centerpiece of her nuclear plan.
NYPA’s vice president of corporate communication, Lindsay Kryzak, told me by email that the authority has “seen widespread support for this critical technology,” and that it’s looking forward to “ensuring the benefits of advanced nuclear energy reach our customers in all five boroughs.”
Mamdani has been a staunch proponent of public clean energy in the legislature, and he’s apparently open to new nuclear for decarbonizing the state. That he hasn’t yet embraced this public power nuclear plan illustrates the strong gravitational pull of the environmental left coalition that surrounds him, one rooted in antinuclear politics.
Across progressive and democratic socialist media, multiple activists who’ve worked on the public power campaign have revealed their personal and professional ties to nonprofits like the Alliance for a Green Economy, New York Energy Democracy Alliance, and the Sane Energy Project, all of which have firmly rejected Hochul’s nuclear plans.
As for the Public Power NY coalition itself, it wants the state to build public renewables, not public nuclear. In a statement following the governor’s nuclear announcement, it argued that the plan “shows just how unserious she is about New Yorkers’ energy bills and climate future.” According to the organization’s website, 12 of the coalition’s 16 partner organizations, excluding DSA chapters, have publicly opposed new nuclear power since the governor kicked off discussions last year. Public Power NY did not respond to requests to comment on this story.
When the New York Independent System Operator, which manages the state’s grid, warns of the dire reliability-related need for “dispatchable emissions-free resources,” a technical term whose only existing commercial realization is nuclear, one would think building more nuclear power is actually the serious thing to do. That conviction isn’t just coming from the governor’s office; it’s shared by major industrial unions like the International Brotherhood of Electrical Workers, the UWUA, the Laborers’ International Union of North America, the state Building Trades Council, and the state AFL-CIO, as I reported this summer for Jacobin.
What does labor think of Mamdani’s recently expressed openness to nuclear? Vinny Albanese, executive director of the New York State Laborers’ Political Action Fund, says over email that his union, LIUNA, is “encouraged to see Assemblymember Zohran Mamdani express openness to nuclear energy, which currently provides half of New York’s carbon-free electricity.”
“With potential energy shortfalls projected to affect New York City as early as next year,” he wrote, “we must act decisively to bring more reliable, clean generation online.” The Laborers, like many unions, endorsed Cuomo in the primary, but haven’t endorsed anyone in the general election.
Morales, the UWUA Local 1-2 president, told me over email that Mamdani’s remark in favor of nuclear energy is “definitely a step in the right direction.” And yet Local 1-2 nonetheless endorsed Cuomo. That’s despite the fact that as governor, Cuomo was directly responsible for shutting down Indian Point, destroying hundreds of Local 1-2 members’ jobs.
Without the antinuclear baggage of his coalition, Mamdani could have pounced on Cuomo for having closed the plant — as Sliwa did at the debate and throughout his own campaign — in order to show solidarity with the union workers and to demonstrate a more responsible energy policy for New York City. In doing so he could have pinned the blame on his opponent for rising power prices and worsening air quality in his own district.
A 2023 public letter on South Bronx air pollution from various city environmental groups admits only obliquely, in the title of one of its charts, that Indian Point’s shutdown “expos[es] area residents to even more pollution.” Assemblyman Mamdani, like several other local elected officials, signed the letter, seemingly his only public engagement with Indian Point’s closure. But some of the nonprofit signatories actually championed the end of the plant, a situation that rules out a more explicitly recognized tradeoff between nuclear energy and air pollution.
If Mamdani wins the mayoral election, as polls indicate he is likely to do, he will take on the tremendous responsibility of governing a major world city. That city is one whose power grid is facing reliability concerns alongside costly maintenance and infrastructure needs, all on top of a popular push to electrify buildings and reduce air pollution. As mayor, he’d have limited levers to address these problems. But with the backing of the governor and the public power authority, he stands a chance. He should embrace Hochul’s public nuclear power plan, and with it nuclear’s potential to help advance New York City’s climate goals.
If he can buck the trend of the environmental left’s hostility to nuclear, he could demonstrate to New York City — and to democratic socialist supporters nationwide, who already view him as a likely successor to (notoriously antinuclear) Vermont Senator Bernie Sanders — that the left can think rationally about the energy system, its affordability, and the wide scope of the climate problem. That would truly be charting a new path.
Editor’s note: This author’s bio has been updated to clarify that he writes under a pen name.