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From the national to the state to the local level, the state is about to hold some of the country’s most crucial elections.

In 2022, the Arizona Republic published a sentence many Democrats had dreamed of reading for decades: “Arizona,” the paper announced, “is a blue state.”
At the time, it felt true. In 2020, Joe Biden won the Grand Canyon State — only the second time a Democrat had done so since Arizona broke for Harry Truman in 1952 — and Democrat Mark Kelly defeated Republican Sen. Martha McSally in a special election to fill the late John McCain’s Senate seat, a victory that helped the Inflation Reduction Act get over the finish line. The 2022 midterm elections confirmed that the Democrats’ wins in the state hadn’t just been a one-time occurrence: Kelly successfully defended his seat, securing a full term; Katie Hobbs won the governorship; and Adrian Fontes beat a January 6 participant to become the secretary of state, Democrats all.
With the 2024 election still a little more than a week away, it’s too soon to tell whether the blue state proclamations of 2022 were premature. But Arizona hasn’t been looking terribly cerulean. In 2023, the Republican-held state legislature passed eight of 16 anti-environment bills introduced and stranded 22 pro-environment bills without committee hearings. Republican voter registration in the state has also swelled since 2016 as Democratic rolls stayed relatively stagnant, giving the GOP an edge in a place where 10,457 votes can make all the difference.
Arizona is just one state out of 50 (or 11 electoral votes out of 538, if you prefer), but it represents a curious microcosm of the high-stakes climate and energy elections happening all over the country this November. Or perhaps it is not so curious: Arizona is on the front lines of the climate-related impacts of droughts, longer and nastier heat waves, ozone pollution, and wildfires, while also being in a position to weigh the trade-offs of crucial clean energy developments like building new energy transmission, critical mineral mining, and utility-scale solar. “It’s like an incubator. There’s just so much happening here, it’s ready to burst,” Jane Conlin, a co-leader of the Tucson chapter of the Citizens' Climate Lobby, which has been engaging in get-out-the-vote efforts with the Environmental Voter Project, told me.
Aside from its electoral college allocations, the most consequential race in Arizona this cycle will be for outgoing Independent Senator Kyrsten Sinema’s seat. The state is currently leaning slightly toward Democratic Representative Ruben Gallego, who could help stem a total hemorrhaging of blue seats from the Senate — which, in turn, would have implications for the passage of any decarbonization legislation in the next administration.
Two U.S. House elections in Arizona could similarly help determine the balance of power on Capitol Hill come January. AZ-01 is the wealthiest congressional district in the state, in the northeastern corner of Phoenix’s Maricopa County, where a former E.R. doctor is trying to unseat a seven-term Republican incumbent in a battle that has centered on abortion access. (The district is also home to the Rio Verde Foothills, which made national headlines in 2022 when Scottsdale cut off its water supply due to drought-related shortages.)
But it’s the other race, in the sixth congressional district spanning the suburbs of Tucson, that looks more like a proxy battle between different climate ideologies. Kirsten Engel — who previously worked for the U.S. Environmental Protection Agency and serves as the co-director of the Environmental Law Program at the University of Arizona — is challenging Juan Ciscomani, a Trump-endorsed moderate conservative who has backed residential solar projects, promoted himself as an advocate for a “secure water future,”and, earlier this year, co-sponsored a bill seen as a first step toward a carbon border tax. (As his opponents quickly point out, he also voted against the IRA; Ciscomani has also been tied to a groundwater scandal involving a Saudi Arabian-owned alfalfa farm.)
Engel previously lost a tight election against Ciscomani in 2022, and has made abortion a centerpiece of her campaign, too. But she has also gone aggressively after the Republican for his alignment with the mining industry, including his support for a proposed open-pit copper mine that opponents say will pollute Tucson’s air and waterways; supporters, meanwhile, say it’s critical to create a domestic supply chain for the energy transition. The League of Conservation Voters, which identified the sixth congressional district election as one of its priority races, is running ads in the state playing up this pollution angle.
Engel herself has slammed the proposed mine, which would be built on public lands, as a “giveaway” to a foreign mining company, and touted the need to protect the region’s “spectacular scenic vistas and the tourism economy.” She has also sought to go toe-to-toe with Ciscomani on water conservation, though as Grist has reported, drought and water rights can be tricky for Arizona politicians to run on because voters don’t have a firm grasp of how the complicated policies work.
The future of climate policy at the regional and municipal levels in Arizona is also in play. Democrats could potentially flip the balance of power in the state House and Senate, each branch currently having just a one-seat Republican advantage, and restart movement on the slate of stalled pro-environmental bills. (The Democratic governor’s term runs through 2026.) “The state legislature in Arizona is so critical,” John Qua, the campaign manager of Lead Locally, told me. “Not only does building a democratic trifecta get the state closer to passing policy that tackles climate change in some of the ways we might more typically understand it — like moving towards clean energy — but it also makes it much likelier that the state legislature will pass water conservation policy.”
The 11 races are “all at a razor-thin margin,” Qua told me, though climate is unlikely to be the issue that tips the balance in any of them. That goes for just about any race in Arizona — except the state’s Corporation Commission, which Heatmap’s Emily Pontecorvo covered earlier this week. Currently, the ACC is operating with a four-to-one Republican majority, but with three Democrats, two Green party candidates, and three Republicans (including an incumbent) running to fill three seats, there’s a wide-open chance that candidates sympathetic to clean energy policy, including the state’s massive solar opportunity, could take control.
“Arizona could lead the world in solar power if politicians would only let it,” Nathaniel Stinnett, the founder and executive director of the Environmental Voter Project, told me. “But that isn’t going to happen unless the climate movement starts showing up in unstoppable numbers whenever there’s an election.”
Conlin, who co-leads the Tucson chapter of the Citizens’ Climate Lobby, has been working on the ground to reach the 230,000 potential first-time environmental voters that Stinnett and his team have identified in the state. (EVP numbers released earlier this week showed that those who vote based on climate issues were about 20% more likely to have submitted an early vote than the average voter.) During a recent folklife festival CCL volunteers attended, “I think about only 25% of people [we engaged with] were really aware of the Arizona Corporation Commission,” Conlin told me. But she’s excited nevertheless: This year, the ACC poll is on the front of Arizonans’ ballots, rather than the back, making it harder for even low-information voters to overlook.
The state is also a case study of how an elected body as small and seemingly insignificant as a school board can make a difference in the progress toward decarbonization. The Tucson Unified School District board of governors will vote next week on a climate action plan that would set a goal of reaching net-zero emissions by 2045. If successful, TUSD would be one of the first school districts in the nation to have implemented such a plan.
Arizona is not the only state in the country that, as Colin put it, feels “on this cusp of being able to reach out — not only to see a 50% cut in emissions but 100%. It’s doable, it’s within reach.” Pennsylvania and Michigan voters will also have opportunities to elect politicians who will advance climate legislation, and voters in Washington, California, and New York can defend their states’ progress. But it’s Arizona where the stakes seem especially immediate — and high. “It’s supposed to be 96 [degrees Fahrenheit] here today,” Conlin marveled when we spoke this week, at the end of October.
I could hear the weariness in the voices of the organizers I spoke to after a long, hard-fought season; candidates are set to make their final pitches to voters next week. Early-voting ballots are already in the mail or in hand. The CCL has just one final day of canvassing planned, on November 2. The polls will close three days later, at 7 p.m. local time, and then the count will begin.
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We got a much better sense of the Trump administration’s nuclear buildout plans today.
The Energy Department announced its long-awaited loan program that will aim to build a new fleet of nuclear reactors across the country. The department’s in-house bank will provide low-interest loans of up to $17.5 billion to help utilities and power developers buy up to 10 Westinghouse AP1000s, the third-generation nuclear reactor that is that company’s flagship product.
I can’t say this program was entirely a surprise: If you read Heatmap, you’ll remember we reported on the existence of this program — and the discussions between the government, utilities, power developers, and Westinghouse — back in February. Gregory Beard, who leads the Energy Department’s in-house bank, also teased the program at a Houston conference in April.
The program looks roughly as anticipated: It will aim to construct up to 10 new reactors, with two AP1000 Westinghouse reactors across five sites. That could add up to 11 gigawatts of nearly around the clock zero-carbon electricity to the power grid. What’s new is that Westinghouse and the utility will jointly own the power plants.
According to The Wall Street Journal, utilities and Westinghouse will each own part of the plants once they’re built. Five loans will become available; the department is already in talks with seven utilities.
At the high level, it’s a cool program — or at least I think so. Nuclear support has become surprisingly bipartisan, at least at the elite level, in recent years. In New York, Governor Kathy Hochul is trying to develop new nuclear plants. As we’ve noted before, the countries with some of the cleanest power grids in the world, such as France and Sweden, achieved their low carbon emissions in part by undertaking large, state-led nuclear energy buildouts. France, in particular, harmonized its nuclear power plants to a single reactor design and then built them to spec across the landscape. China is engaged in a similar buildout now with a variant of the AP1000. By getting behind the AP1000 in the United States, the Trump administration is following a global best practice.
The idea of a mass buildout makes sense for other reasons, too. Recent nuclear projects in the United States have often faced delays because construction and manufacturing timelines don’t line up. AP1000s are manufactured partly off-site in Westinghouse facilities and then shipped in; when a part arrives late, an expensive construction crew has to sit idle while they wait for it to arrive. (These timing misalignments drove part of the Vogtle plant’s runaway costs in Georgia.) By placing what is in essence a bulk order for AP1000 parts, the new program aims to bring down the cost of production and even allows project sites to swap identical parts as they come available — if one site isn’t ready to receive a pressure vessel, for instance, it can go somewhere else.
I hesitate to praise the project's climate bonafides at the risk of discouraging the Trump administration, but it is worth noting that if this project were to succeed, it would be one of the largest state-assisted build-outs of zero-carbon electricity in recent American history. But it would still take some time to arrive: These reactors aren’t forecast to come online til 2035.
Let me note one more irony. For a long time, the country’s policymakers and nuclear industry (to the extent the latter exists) have dreamt of small modular reactors: petite fission plants that can be manufactured in a factory and would produce a few hundred megawatts. The AP1000, in both its American and Chinese iterations, is a very large reactor — but it has become, in a sense, modular and manufacturable.
Cameco, which owns about half of Westinghouse, saw its stock rise 1.8% in the day’s trading. Brookfield Renewable Partners, which owns the other half, was flat. It was otherwise a choppy day in the markets, with the S&P 500 falling 1.4% and some tech and AI-exposed companies continuing their slide.
There will be much more to say about this program, and we look forward to covering it at Heatmap.
Hyperscalers might be paying billions to avoid blame for rising electricity prices.
Here is a mystery for you: On Wednesday, the House Energy and Commerce Committee will take up the Ratepayer Protection Act, a bipartisan bill sponsored by Colorado Republican Gabe Evans and Florida Democrat Kathy Castor that seeks to enshrine Trump’s similarly named pledge into law.
Among the bill’s supporters is Kentucky Representative Brett Guthrie, a Republican and the chair of the committee. Guthrie is no opponent of artificial intelligence, saying in a statement praising the bill that “Winning the race to AI dominance is essential to securing America’s future global leadership, and that means expeditiously building the power infrastructure needed to support new technologies, while doing so in a responsible way.” Guthrie did not respond to a request for comment.
Microsoft, one of seven large technology companies that agreed to cover any additional grid infrastructure costs stemming from their data centers under Trump’s original Ratepayer Protection Pledge, supports the bill, describing it as an “important step to help ensure American families are protected from rising electricity costs.” Google, another signatory, generally backs the idea of specialized large load tariffs that allocate network costs back to the hyperscalers.
But … why? After all, these companies are voluntarily putting themselves on the hook for what could be billions of dollars in costs that would typically be socialized to all the customers on the grid.
The Data Center Coalition, a trade group including several hyperscalers, has been more circumspect about the bill. Cy McNeill, the group’s senior director of federal affairs, told me in a statement that the group “is reviewing the details of the Ratepayer Protection Act with our members and looks forward to engaging with policymakers on this important topic.”
Evans, Castor, Guthrie, and and the rest appear to be acting not out of hostility towards the AI industry, but rather from a desire to protect it from public backlash fed by rising electricity prices. Earlier this month, Guthrie co-signed a letter to FBI Director Kash Patel, among others, raising concerns that China had “engaged in a coordinated effort to slow U.S. growth in AI development and the building of infrastructure supporting AI data centers” by fomenting domestic opposition — hardly the interpretation of someone working against the industry.
The explanation, perhaps, lies in the answers to two big questions about the Ratepayer Protection Act:
1. Are data centers responsible for higher electricity prices now, or will they be in the future?
2. And would the approach taken in the law actually work to protect ratepayers?
As to the first question, analysts have come up with a nuanced answer. The electricity cost increases we’ve seen in the last five or so years have been largely driven by expenses associated with the distribution grid, including the poles and wires themselves. In some states, like California, the costs come back to wildfires; in others, like Maine, to storm remediation. Looking backwards to 2019, researchers have not been able to find a regular relationship between load growth and price hikes.
In fact, several states “absorbed large industrial and data center load additions while reducing inflation-adjusted retail prices,” according to researchers at Columbia University’s Center on Global Energy Policy. By contrast, some states with little load growth from industry or data centers, such as Maine or California, have seen prices rise substantially.
Many analysts expect electricity prices to continue rising nationally, and data centers could be a driver going forward as demand hits a grid whose capacity to generate and transmit electricity is increasingly strained. This is likely already happening in the country’s largest electricity market, PJM Interconnection, where the system’s independent market monitor has claimed that current and forecasted data center demand has cost customers over $23 billion from recent capacity auctions.
To get prices to actually fall — or at least grow more slowly —it would require that “low-cost supply is available, existing infrastructure is more fully utilized, and cost allocation ensures that new demand contributes to system efficiency,” the Columbia researchers write. Under business as usual however, prices will likely continue to rise.
On the second question, there is much more cynicism.
Critics of the original Ratepayer Protection Pledge, including Harvard Law School’s Ari Peskoe, pointed out that the actual parties to ratemaking — utilities and state regulators — were not involved in the pledge at all. Already, there are accusations that projects developed by pledge signatories could lead to higher prices. Meta's sprawling planned data center project in Louisiana is responsible for the utility’s plans to buy a Texas natural gas-fired power plant, according to documents filed by regulators reviewed by the Times-Picayune. The $1.8 billion deal could lead to $8 a month in additional costs for typical Louisiana ratepayers.
The Ratepayer Protection Act would go a bit further than the pledge, amending the Public Utility Regulatory Policies Act to “establish a Federal standard relating to the recovery of the full, incremental costs of upgrades that serve large-load customers.” Peskoe, however, described this to me in an email as “largely symbolic” and noted that “Congress may not force state regulators to do anything” under current Supreme Court jurisprudence. “This section of PURPA is basically Congress asking state regulators to please take a look at the ratemaking standard.”
That being said, Peskoe noted that “many states and non-regulated utilities do tend to consider PURPA ratemaking standards,” but that there’s “no enforcement mechanism,” depriving the law of any teeth. “States can reject the ratemaking standards or adopt them in a way that deviates from what Congress may have intended.”
Still, it is likely in the political interest of state regulators to come up with something on large load tariffs, the Cato Institute’s Travis Fisher told me. He recommended that the National Association of Regulatory Utility Commissioners “spearhead an initiative to get every state regulator to sign a ratepayer protection pledge,” if only to insulate themselves from political backlash and maintain their power over retail ratemaking.
But even if states do adopt the cost allocation principle, determining exactly which infrastructure is being installed due to a data center and what serves all users can be tricky.
“Any real-world example of this is going to be quite complicated, and the devil’s always in the details,” Ben Schifman, a senior technology fellow at the Institute for Progress and a former attorney at the Department of the Interior and the Department of Justice, told me. While it might be possible to conclude that “a given substation is simply only needed for that data center,” he said, “as soon as you start zooming out into the larger, big-ticket investments, it’s quite complicated to attribute the cost to one user or one group of users.”
In summary, the Ratepayer Protection Act will ask state regulators to consider an approach to data center cost allocation that may not capture all of their costs and will likely do little to arrest the fundamental drivers of higher electricity costs. Viewed through this lens, the logic of the coalition supporting both the original Ratepayer Protection Pledge and the beefed-up Ratepayer Protection Act comes into focus.
Electricity prices are likely to continue to rise, and data center construction has powerful interests behind it. The public’s attitude towards data centers is rapidly souring, and no matter how many nuanced PDFs are published on the topic, people continue to blame data centers for higher electricity costs.
And if prices continue to rise, the big data center developers may be able to point to the Ratepayer Protection Act and say “well, it wasn’t me.”
On simplified oil and gas leases, lawsuits over plastic and coal, and a new climate research database
Current conditions: The U.K.’s Met Office issued its second-ever Red Extreme Heat Warning for Wednesday and Thursday • A wildfire near Eureka, Utah forced the town’s evacuation • Flash flood warnings are in effect today for Southern Massachusetts.
Lucid Motors is downsizing, again. The electric vehicle maker is laying off 18% of its staff just a few months after a 12% reduction in force in February, according to Electrek. The company also eliminated a second production shift at its factory in Casa Grande, Arizona. EV sales plummeted in the U.S. after the federal EV tax credit expired in September. While many automakers are canceling new electric vehicle lines in the U.S., Lucid hasn’t axed any plans yet, and will be releasing its first lower-cost EV, the Lucid Cosmos SUV, later this year with a price tag under $50,000. It’s also preparing to launch a robotaxi service later this year in partnership with Uber and the autonomous driving technology company Nuro. According to Lucid’s new CEO, Silvio Napoli, the staff cuts will help “simplify the company, sharpen execution, and position Lucid to become more competitive over time.”

Trump’s environmental deregulation crusade continues. The Interior Department proposed several changes to the rules governing oil and gas leasing on federal lands Monday that would limit public input and cut costs for companies. Under existing rules, which were updated during the Biden administration, companies must maintain a minimum bond of $500,000 for each state where they hold leases to cover the cost of capping oil and gas wells when they are done drilling. Trump’s proposal would reduce the requirement to $25,000, shifting the financial risk of remediation to state taxpayers. The new rules would also shorten public participation periods from 90 days to 10, and get rid of a requirement that companies include plans to minimize methane emissions when they apply for drilling permits.
Red states are going after California, this time for its nation-leading plastic regulations. In 2022, the Golden State passed a law setting plastic waste reduction targets and requiring companies to cover the cost of recycling of their own products. The state aims to cut single-use plastic packaging on products by 25% by 2032. Now, 17 attorneys general from red states have teamed up with the National Association of Wholesaler-Distributors, a trade group, to sue California, arguing that the rules represent an “unprecedented overreach” that will increase the cost of goods throughout the country.
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In the first case of its kind, 10 Australians are suing the government for violating their human rights by failing to limit fossil fuel production. The claimants, each of whom has been personally affected by climate change-fueled extreme weather, brought the case to the United Nations’ Human Rights Committee on Monday. Some of them have lost their homes to wildfires and floods, while others have experienced health impacts from heat waves. The case follows a 2025 ruling by the International Court of Justice that all governments have an obligation to protect people from climate change, citing support for fossil fuel production and consumption as a potential violation of this obligation. While that ruling didn’t have any enforcement power, it teed up the potential for country-level claims like this one in Australia. The country is the second largest exporter of coal in the world and the third largest exporter of liquified natural gas.
The rumors were true. The Trump administration has appointed Travis Kavulla, a former utility regulator and power company executive, to lead the Bonneville Power Administration, a federal agency that sells electricity from the government’s hydroelectric dams in the Pacific Northwest. Kavulla arrives as the agency prepares for a controversial exit from California’s real-time electricity trading market to join a new day-ahead market overseen by the Southwest Power Pool, a regional transmission organization. Environmental groups are urging Kavulla reconsider the decision, arguing that it risks raising energy costs for Northwest ratepayers.
The climate change research and news site Carbon Brief debuted Project Cosmos on Monday, the world’s largest database of research on the warming planet. It includes more than 1.8 million publications and “captures the vast body of human knowledge about climate change that has accumulated over more than a century of academic study.” The architects created a stunning “star” map that visualizes the collection by clustering of fields of study, such as medicine, chemistry, or agriculture. They also identified the 500 most-cited studies and scientists, with French carbon cycle modeler Philippe Ciais earning the top spot.