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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 In one fell swoop, voters in Washington State repealed several of their nation-leading policies that encourage electric over gas appliances and barred cities and towns from passing similar policies in the future.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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My colleague Emily Pontecorvo has a fascinating story today about Net Power, an energy and power development company whose technology once seemed key to decarbonizing the country’s electricity grid.
When Net Power went public in 2023, it was working on a natural gas-burning power plant that would generate little to no emissions in part by using carbon capture and storage. Its invention seemed to have big implications, and not just for the company’s bottom line: Back then, the Environmental Protection Agency was drafting climate rules that would have required new natural gas plants built in the 2030s to capture their carbon dioxide emissions. Net Power’s technology seemed like one of the best available ways to meet that standard.
Cut to 2026, and the world looks different. Thanks to the artificial intelligence boom, electricity demand is surging. But Net Power hasn’t successfully commercialized its proprietary power plant technology. Even if it had, few companies are willing to pay the high premium required by Net Power’s technology, especially when cheaper options are available. And the government certainly isn’t going to require it. Emily’s story reveals what happened next.
When I helped start Heatmap more than three years ago, I never thought I would write this much about data centers. I believed that electricity demand growth was inevitable, sure, and I thought the U.S. power grid had to expand for the country to decarbonize. But I didn’t foresee such a staggering near-term surge in electricity demand. (To be fair, even long-time students of the computing industry’s energy use didn’t see the coming increase, either.)
What I didn’t anticipate — or understand — were two fast-moving trends. The first was that the AI models were responding to scale: the more text or images they consumed, or training they received, or (crucially) computational power they had access to, the better they got. The second was that Wall Street was happy to pay to continue that speedy scale-up. As long as models kept getting better, investors were willing to keep lending or investing more money to the companies making them. Through the power of those two scaling functions, the data center boom became one of the biggest infrastructure buildouts in American history.
In recent days, the second of those trends has started to falter. After a surprisingly hot inflation report last week, and a disclosure on Wednesday evening that Meta has gone free cash flow negative to finance its ongoing AI buildout, stocks with any proximity to AI or data centers stumbled on Wall Street today. The data center developers Coreweave and Vistra were each down about 10%, while Microsoft, Alphabet, and Nvidia all fell in daily trading. Meta’s stock lost almost 7% of its value; GE Vernova, which produces gas turbines, was down 10%.
These declines look more significant when you zoom out. Since late June, a good chunk of the AI portfolio has sagged into the red. Coreweave’s stock is down 54% over the past six months. Alphabet and GE Vernova have also posted declines since the summer. (The trend isn’t uniform: Nvidia and Microsoft are still very much in the green.)
None of this, to be sure, guarantees that the AI boom is ending or even slowing down. But this finance-applied friction is what such a slowdown could look like. Investors aren’t (yet) saying that AI is a business dud, to be clear, just that companies perhaps don’t need to go and construct all this stuff so fast. And given what the data center buildout has meant for energy construction — not to mention greenhouse gas emissions — that’s a trend nobody in climate or energy can ignore.
The zero-emission pioneer is doing the dirty work for the AI boom.
All kinds of companies have refashioned themselves to exploit the AI boom. A bitcoin miner became a data center developer, a shoemaker is building GPUs, and an electric vehicle company is integrating its powertrains into server racks.
Now, a company that once aspired to build one of the lowest-emitting power plants has pivoted to building one of the dirtiest in order to meet data centers’ requirement for speed to power above all. Net Power was founded to pioneer a new form of natural gas power plant with zero emissions, but it has given up on that technology and recently acquired 10 natural gas reciprocating engines that it plans to co-locate with a data center on the site intended for its first commercial plant.
“We believe the clean piece is important,” Net Power CEO Danny Rice said during an August earnings call when he announced the company’s pivot to building unabated natural gas plants. “But just as it’s always been, it will only come at scale once society’s basic energy pillars of reliable, affordable power are fully in place. Power demand is outstripping supply today.”
Net Power’s pivot is a sign not only that the AI boom has eroded market appetite for clean power, but that U.S. policies supporting carbon capture — primarily the 45Q tax credit that President Trump’s One Big Beautiful Bill Act recently expanded — are still not enough to support the technology’s deployment in the power sector.
“The long history of doing CCS in the United States is there isn’t enough public funding to get companies to deploy it at scale,” Jack Andreasen Cavanaugh, a senior research associate at Columbia University’s Center on Global Energy Policy, told me.
This is actually the second major pivot the company has made in less than a year. Last November, Net Power was still testing its proprietary oxy-combustion technology at its demonstration site in La Porte, Texas. The tech was designed to burn natural gas in a chamber with pure oxygen, producing a purer stream of CO2 than when natural gas is burned in regular air. Net Power’s system could recycle some of that CO2 for power generation and capture the rest more efficiently than a conventional gas plant could. The company had not yet demonstrated that the system could generate more energy than it used, however.
By that point, Net Power had determined that its oxy-combustion plants, if they ever even did generate net power, would not be economically competitive anytime soon. In its 2025 Q3 financial report, the company said it had “decided to broaden the scope of its business” and develop more conventional natural gas plants with carbon capture equipment tacked on. It signed a letter of intent with Entropy, a Canadian company building “post-combustion” carbon capture equipment, to bring the tech to the United States, and ordered two 30-megawatt Siemens natural gas turbines for 2028 delivery.
“For us and everyone else in the power and data center space these days, speed is everything,” Rice said at the time. “We believe gas turbines with [post-combustion capture] can and should be the fastest-to-market and most cost-competitive clean, firm solution for our prospective customers.”
He told investors that rising costs were one of the setbacks Net Power faced in building its first-of-a-kind oxy-combustion plant. It was highly unlikely the company could finance and build a $1.7 billion, 200-megawatt plant before completing all its testing, he said. The best-case scenario for the plant to come online was 2030 or 2031, and costs might keep rising with inflation. The company could either bet on that prospect and keep bleeding cash, or “slow down that spending in order to free up some of our resources for near-term accretive opportunities.” As a public company with shareholders to answer to, there was really only one choice.
By the end of 2025, Net Power decided to suspend its oxy-combustion development and testing activities altogether, according to its year-end SEC filing.
Six months later, the company’s thesis changed again. Gas turbines with post-combustion capture, it turned out, were not the “fastest-to-market and most cost-competitive” solutions that the company had hoped they’d be. Whereas once upon a time, electricity buyers considered a range of factors when shopping around for power, including carbon emissions, the reality was that they were now only looking for three qualities: speed, reliability, and scale. “Natural gas power generation, co-located with customer load, and deployable on a fast timeline, is how we expect to meet that demand today,” Rice told investors, adding that the company hoped to add carbon capture to its projects in the future.
To date, only one proposed U.S. natural gas plant with carbon capture has announced a deal to sell its prospective power. In October 2025, Google signed a power purchase agreement with the Broadwing Energy Center, an Illinois plant under development by a company called Low Carbon Infrastructure.
“There is a massive demand for unabated gas right now, and there is much less of a demand for carbon capture,” Cavanaugh said. He told me there are still lots of conversations happening between hyperscalers and carbon capture companies, but the physical realities and costs of capturing, transporting, and storing carbon from natural gas plants remain obstacles.
The Global CCS Institute published its annual Global Status of CCS report this week, which found more than 266 carbon capture, transport, or storage projects are under development in the U.S., but permitting delays and policy uncertainty are stalling their progress. “Inflation and rising capital costs have weakened project economics, reducing the effectiveness of existing policies, such as tax and investment credits,” the report said.
That doesn’t mean there aren’t still companies trying. Net Power may have given up on oxy-combustion power plants for now, but Arbor Energy, a startup founded by former SpaceX engineers, is just ramping up. Arbor announced a milestone in the development of its own oxy-combustion power generator last week, running a key piece of its system — a supercritical CO2 turbocompressor — for more than two hours at high speeds.
Arbor differentiates itself by using 3D-printed turbines and developing smaller, more modular plants. It’s scaling more incrementally than Net Power tried to, starting with a 1-megawatt demonstration plant in California that is “weeks away” from operating, the company’s Chief Operating Officer Alicia Harmon told me — although the project won’t include carbon storage. It plans to build a 25-megawatt demonstration plant by 2028, also sans storage, before manufacturing commercial-scale systems.
Arbor actually went through a pivot of its own due to the data center boom. The founders originally planned to focus on bioenergy with carbon removal, using the oxy-combustion technology to generate power from biomass and storing the resulting CO2 underground. Over time, though, it became clear that demand for power outpaced demand for carbon removal, and natural gas was more abundant than biomass.
I asked Harmon whether the company thought there was market demand for carbon-capture gas plants. Is anyone willing to pay that green premium right now? “Honestly, my answer is no,” she said, but the company sees a path to erasing the green premium by the early 2030s. She added that Arbor’s technology is already “very close” to parity with combined-cycle natural gas plants when the 45Q tax credit is taken into account.
Last month, Net Power announced it had acquired 123 megawatts’ worth of Wärtsilä reciprocating engines, in addition to the Siemens turbines it had already ordered. Reciprocating engines are among the dirtiest natural gas power-generation technologies. A recent report from Earthjustice estimated that a 1-gigawatt plant powered by reciprocating engines would emit 1.5 times as much CO2 per year as one powered by the “combined cycle” technology most modern plants use, and twice as much nitrogen oxides and fine particulate matter. It has not yet disclosed any data center partners to sell the power to.
Net Power declined to comment on this story.
Ben Allen wants to reform the existing market. Jane Kim wants a revolution.
From Crescent City to Coronado, California voters are facing decisions on a down-ballot strewn with over a dozen propositions and a series of statewide Democrat-versus-Republican races with mostly foregone conclusions.
And then there’s the insurance commissioner.
In the race to oversee California’s insurance market, a $452 billion-in-premium-volume monster imperiled by insurer defections and disaster risks, Democratic State Senator Ben Allen, whose district includes Pacific Palisades, is facing off against Jane Kim, a progressive former San Francisco supervisor.
Kim has the support of Vermont Senator Bernie Sanders — it’s the first thing you see about her when you Google her campaign. She previously served as his California political director during the 2020 presidential race, and she appeared earlier this month at an event with the senator in support of the state’s proposed billionaire wealth tax.
Allen, by contrast, won the endorsement of the state’s Democratic Party and its two incumbent senators.
There has been little public polling of the race, but one September survey showed Kim leading Allen 25% to 18%, with more than half the electorate undecided.
“My opponent and I are not even running for the same office,” Kim told me. “He’s running for what this office used to be, and I’m running for what this office could be.”
Allen wasn’t worried about Kim’s characterization in my interview with him, telling me, “I want to fix the market that we have and make it work. My opponent wants to build a new state insurer that nobody has priced.”
Nowhere are the stakes of insurance regulation higher than in California. On its own, the state’s insurance market would be the third largest in the world, according to the National Association of Insurance Commissioners. Homeowner insurance premiums have risen 84% from the end of 2020 to March 2026, according to research from Stanford’s Climate and Energy Policy Program. Several large insurers have either left the market entirely or stopped writing new policies.
California’s creaky and complex regulatory environment for insurers has combined with its famously flammable environment (all beset by a warming climate) to put regular policyholders at risk of losing their policies or bailing out those who can’t get covered. “Climate risks grow, and our mechanisms for dealing with it lag behind,” Matt Weiner, the chief executive of the wildfire policy group Megafire Action, told me. (Weiner said he was supporting Allen in his personal capacity).
Rates for homes insured by the FAIR Plan, the barebones insurer of last resort, have more than doubled from about 2% to 5% over that same period, with FAIR Plan coverage spreading from just high-risk areas to even areas with low and moderate wildfire risk. The plan required a $1 billion assessment from the state’s insurers in 2025 following major Southern California fires. “This trend is a symptom of many homeowners’ inability to secure insurance in the conventional market,” according to the Stanford researchers.
Allen seeks to make the insurance market work better, building on reforms implemented by current Insurance Commissioner Ricardo Lara. Allen described the reforms, which encourage insurers to write policies in high-risk areas and allow them to use forward-looking projections, as a “bit of a band-aid” that doesn’t “actually get to the core of the problem, which is making these communities less risky.”
Allen’s plan for the California insurance market involves both reviewing rate proposals more quickly, incorporating more data into those rates (which may push rates up, but also keep insurers in the market), and mobilizing the whole of government to invest in home hardening and resilience to lower risk and bring premiums down. Allen wants to, well, insure “that risk reduction is actually incentivized and rewarded by the insurance market,” he told me.
This would mean that “there will continue to be certain properties that are going to be so high risk that they really will and ought to be paying significantly more than everybody else,” he added.
When I asked him to elaborate on his vision for California’s insurance future, he told me, “My hope is that when a family and a neighborhood commit to hardening defensible space and community-scale mitigation, that should show up on the bill.”
Jane Kim, on the other hand, is interested in an insurance revolution, which would require — as her most famous supporter might put it — a political revolution as well. Her centerpiece proposal will be familiar from anyone who has followed Sanders’ career: a single-payer disaster insurer.
The plan, which she told me was a “concept and a proposal,” would be funded by a levy placed on insurers, and then a public insurer would invest in the market, buy reinsurance, and pay out claims. (Her opponents have criticized her for not being forthcoming enough with details). She says her plan would not be able to cover a Palisades- or Altadena-level fire in its first year, “but no insurance company can cover a catastrophe of that level.”
The nonprofit nature of the program, she adds, would let the state fund mitigation work directly. While such a program would require legislative action, “the great thing about campaigns is that this is trying to debate big ideas with voters,” Kim said.
In response, Allen cited a report from the California Earthquake Authority, which modeled a state disaster insurer (albeit not Kim’s plan specifically) could require $25 billion in capitalization. A more thinly capitalized insurer could mean $2,000 assessments on every policyholder in the state to cover an extreme wildfire disaster, the report said. “That’s the honest price of what she’s proposing,” Allen said.
“I also have a plan that’s actually grounded in reality and fixing the problems right now. It's not based on some pie-in-the-sky set of ideas that have no precedent, that have no real meat on the bones,” Allen told me.
One of Allen and Kim’s former opponents, Patrick Wolff, who fell short in the top-two primary election in June, told me that “the charitable interpretation of Kim’s platform is she does not think the current system can be made to work, and so she essentially wants to redesign and reimagine the entire system.” (Wolff has endorsed Allen). But, he added, “she’s coming at it from a set of solutions that were baked-in before she started, and then she's fitting [those] into her campaign.”
Moira Birss, a senior fellow at the Climate and Community Institute who said she had “provided input” to Kim’s campaign, but wasn’t speaking on its behalf, told me she “really recognizes that we are yet again in a situation where the private insurance market is not responding to a need that we as communities and as society have for this financial safety net of disaster insurance, and that we need a public approach.” She said the plan would build on lessons learned from New Zealand, which has public natural disaster insurance funded through a levy on fire insurance, and from the National Flood Insurance Program and the FAIR Plan.
Kim is happy to embrace the more ideologically charged vision of her campaign, telling me, “I am talking about transforming this office to be a place where we are leading on, and taking on, economic inequity, a wealth gap, and the climate crisis.
“I don’t even view my opponent as Ben Allen — I’m not running against Ben Allen,” she went on. “I’m running against the status quo.”