You’re out of free articles.
Log in
To continue reading, log in to your account.
Create a Free Account
To unlock more free articles, please create a free account.
Sign In or Create an Account.
By continuing, you agree to the Terms of Service and acknowledge our Privacy Policy
Welcome to Heatmap
Thank you for registering with Heatmap. Climate change is one of the greatest challenges of our lives, a force reshaping our economy, our politics, and our culture. We hope to be your trusted, friendly, and insightful guide to that transformation. Please enjoy your free articles. You can check your profile here .
subscribe to get Unlimited access
Offer for a Heatmap News Unlimited Access subscription; please note that your subscription will renew automatically unless you cancel prior to renewal. Cancellation takes effect at the end of your current billing period. We will let you know in advance of any price changes. Taxes may apply. Offer terms are subject to change.
Subscribe to get unlimited Access
Hey, you are out of free articles but you are only a few clicks away from full access. Subscribe below and take advantage of our introductory offer.
subscribe to get Unlimited access
Offer for a Heatmap News Unlimited Access subscription; please note that your subscription will renew automatically unless you cancel prior to renewal. Cancellation takes effect at the end of your current billing period. We will let you know in advance of any price changes. Taxes may apply. Offer terms are subject to change.
Create Your Account
Please Enter Your Password
Forgot your password?
Please enter the email address you use for your account so we can send you a link to reset your password:
On energy efficiency rules, Chinese nuclear, and Japan’s first offshore wind

Current conditions: Warm air headed northward up the East Coast is set to collide with cold air headed southward over the Great Lakes and Northeast, bringing snowfall followed by higher temperatures later in the week • A cold front is stirring up a dense fog in northwest India • Unusually frigid Arctic air in Europe is causing temperatures across northwest Africa to plunge to double-digit degrees below seasonal norms, with Algiers at just over 50 degrees Fahrenheit this week.

Oil prices largely fell throughout 2025, capping off December at their lowest level all year. Spot market prices for Brent crude, the leading global benchmark for oil, dropped to $63 per barrel last month. The reason, according to the latest analysis of the full year by the Energy Information Administration, is oversupply in the market. China’s push to fill its storage tanks kept prices from declining further. Israel’s June 13 strikes on Iran and attacks on oil infrastructure between Russia and Ukraine briefly raised prices throughout the year. But the year-end average price still came in at $69 per barrel, the lowest since 2020, even when adjusted for inflation.

The price drop bodes poorly for reviving Venezuela’s oil industry in the wake of the U.S. raid on Caracas and arrest of the South American country’s President Nicolás Maduro. At such low levels, investments in new infrastructure are difficult to justify. “This is a moment where there’s oversupply,” oil analyst Rory Johnston told my colleague Matthew Zeitlin yesterday. “Prices are down. It’s not the moment that you’re like, I’m going to go on a lark and invest in Venezuela.”
The Energy Department granted a Texas company known for recycling defunct tools from oil and gas drilling an $11.5 million grant to fund an expansion of its existing facility in a rural county between San Antonio and Dallas. The company, Amermin, said the funding will allow it to increase its output of tungsten carbide by 300%, “reducing our reliance on foreign nations like China, which produces 83%” of the world’s supply of the metal used in all kinds of defense, energy, and hardware applications. “Our country cannot afford to rely on our adversaries for the resources that power our energy industry,” Representative August Pfluger, a Texas Republican, said in a statement. “This investment strengthens our district’s role in American energy leadership while providing good paying jobs to Texas families.”
That wasn’t the agency’s only big funding announcement. The Energy Department gave out $2.7 billion in contracts for enriched uranium, with $900 million each to Maryland-based Centrus Energy, the French producer Orano, and the California-headquartered General Matter. “President Trump is catalyzing a resurgence in the nation’s nuclear energy sector to strengthen American security and prosperity,” Secretary of Energy Chris Wright said in a press release. “Today’s awards show that this Administration is committed to restoring a secure domestic nuclear fuel supply chain capable of producing the nuclear fuels needed to power the reactors of today and the advanced reactors of tomorrow.”
Low-income households in the United States pay roughly 30% more for energy per square foot than households who haven’t faced trouble paying for electricity and heat in the past, federal data shows. Part of the problem is that the national efficiency standards for one of the most affordable types of housing in the nation, manufactured homes, haven’t been updated since 1994. Congress finally passed a law in 2007 directing the Department of Energy to raise standards for insulation, and in 2022, the Biden administration proposed new rules to increase insulation and reduce air leaks. But the regulations had yet to take effect when President Donald Trump returned to office last year. Now the House of Representatives is prepared to vote on legislation to nullify the rules outright, preserving the standards set more than three decades ago. The House Committee on Rules is set to vote on advancing the bill as early as Tuesday night, with a full floor vote likely later in the week. “You’re just locking in higher bills for years to come if you give manufacturers this green light to build the homes with minimal insulation,” Mark Kresowik, senior policy director of the American Council for an Energy-Efficient Economy, told me.
Sign up to receive Heatmap AM in your inbox every morning:
The newest reactor at the Zhangzhou nuclear station in Fujian Province has officially started up commercial operation as China’s buildout of new atomic power infrastructure picks up pace this year. The 1,136-megawatt Hualong One represents China’s leading indigenous reactor design. Where once Beijing preferred the top U.S. technology for large-scale reactors, the Westinghouse AP1000, the Hualong One’s entirely domestic supply chain and design that borrows from the American standard has made China’s own model the new leader.
In a sign of just how many reactors China is building — at least 35 underway nationwide, as I noted in yesterday’s newsletter — the country started construction on two more the same week the latest Hualong One came online. World Nuclear News reported that first concrete has been poured for a pair of CAP1000 reactors, the official Chinese version of the Westinghouse AP1000, at two separate plants in southern China.
Back in October, when Japan elected Sanae Takaichi as its first female prime minister, I told you about how the arch-conservative leader of the Liberal Democratic Party planned to refocus the country’s energy plans on reviving the nuclear industry. But don’t count out offshore wind. Unlike Europe’s North Sea or the American East Coast, the sharp continental drop in Japan’s ocean makes rooting giant turbines to the sea floor impossible along much of its shoreline. But the Goto Floating Wind Farm — employing floating technology under consideration on the U.S. West Coast, too — announced the start of commercial operations this week, pumping nearly 17 megawatts of power onto the Japanese grid. Japanese officials last year raised the country’s goal for installed capacity of offshore wind to 10 gigawatts by 2030 and 45 gigawatts by 2040, Power magazine noted, so the industry still has a long way to go.
Beavers may be the trick to heal nature’s burn scars after a wildfire. A team of scientists at the U.S. Forest Service and Colorado State University are building fake beaver dams in scorched areas to study how wetlands created by the dams impact the restoration of the ecosystem and water quality after a blaze. “It’s kind of a brave new world for us with this type of work,” Tim Fegel, a doctoral candidate at Colorado State, who led the research, said in a press release.
Log in
To continue reading, log in to your account.
Create a Free Account
To unlock more free articles, please create a free account.
Current conditions: China has triggered emergency warnings across six provinces as heavy rainfall floods the countryside • A magnitude 7.8 earthquake struck the Philippines, leaving at least 32 dead and more than 100 injured in building collapses • Temperatures in Albuquerque, New Mexico, are rising near 100 degrees Fahrenheit.
On Tuesday, Tennessee is set to become the first state in the nation with its own regulatory framework for nuclear fusion plants. You may be wondering, why Tennessee? The two-word answer: Oak Ridge. The Volunteer State has operated as a hub for nuclear energy research and development for more than 60 years, feeding off both the Oak Ridge National Laboratory and the Tennessee Valley Authority’s capacity to help commercialize new technologies. Now state regulators are establishing the first dedicated rulebook for building future fusion plants. “Tennessee has been named the top state in the nation for nuclear energy industry growth, and for good reason,” David Salyers, the commissioner of the Tennessee Department of Environment and Conservation, said in a statement. “This latest step supercharges our reputation as the global hub for nuclear innovation and positions us as the most responsive state to new advanced nuclear companies clamoring to call Tennessee home.”
It’s not the only government betting that the various attempts to commercialize fusion as an energy source will pan out in the near future. On Monday, NucNet reported that the British government had drafted legislation to “create conditions” for deploying fusion technology.
Typically, the rule of thumb in journalism is that the answer to a question headline is almost always “no,” otherwise the headline would simply state the fact. But this one is a genuine open question that climate-tech investor Shanu Mathew raised Monday in a post on X: Could PJM Interconnection, the nation’s largest grid operator, break apart? The speculation traces back to a Bloomberg article from last week in which unnamed federal officials suggested that the operator, which runs the grid from the Illinois prairie to the Jersey Shore, could split up as data centers put strain on the 13-state system’s electricity supplies.
The talks are happening as two of the largest utilities in PJM, NextEra and Dominion, discuss a potential $420 billion megamerger that would create, among other things, a storage giant, as Heatmap’s Matthew Zeitlin reported. The discussions are also occurring against the backdrop of major artificial intelligence companies going public, with ChatGPT-maker OpenAI following Claude-developer Anthropic in filing a confidential S-1 with the Securities and Exchange Commission this week.

In the United States, you can’t build a single commercial nuclear reactor in a decade. In China, you can apparently double the size of your entire fleet in that time. Between 2016 and 2024, China’s nuclear generation capacity soared by 76%, according to a new Energy Information Administration analysis. That’s equal to 24 gigawatts. In 2025, China added another 1.1 gigawatts, followed by 2.2 gigawatts more this year just through May. The country has at least 36 other reactors under construction, accounting for nearly half of the world’s ongoing nuclear projects.
Sign up to receive Heatmap AM in your inbox every morning:
Just five years ago, the global aviation industry made a landmark pledge to achieve net zero emissions by 2050. Now the head of the industry’s global body says that goal is likely already out of reach. Willie Walsh, the director of the International Air Transport Association, told The Guardian that “hope was fading fast” and a new “realistic timeline” needed to be established. More than half of the planned decarbonization of air travel relied on the development of sustainable aviation fuels that remain nascent at best. Money is pouring into the technology, as Heatmap’s Katie Brigham reported. But uptake so far “is about 0.2% of fuel,” Nicole Cerulli, a research associate for transportation and logistics at the market research firm Cleantech Group, told her.
One cold autumn morning three years ago, I made my way across downtown Ulaanbaatar to an American-style diner called Millie’s Espresso to meet with a Mongolian mining executive who was thrilled about Western countries’ recent investments in his industry. Landlocked between Russia and China, the geographically huge but sparsely populated democracy hoped to shore up its sovereignty by forging deals with the U.S., Europe, South Korea, and Japan to satisfy soaring demand for minerals. Already Oyu Tolgoi, one of the world’s largest copper mines, was underway in the country’s Gobi desert south, and that year the French government inked a deal to start producing lithium and uranium in Mongolia. Now the uranium part of that agreement is moving forward. On Monday, World Nuclear News reported that the French state-backed nuclear fuel producer Orano had broken ground on its first mine in the Central Asian nation. The project raised some eyebrows among Mongolians who complained that Soviet-era Russian uranium mining left behind nasty pollution, and the terms of Ulaanbaatar’s deal with Rio Tinto over the new copper mine have been politically contentious. But the sprawling, smog-choked capital city — the only major urban development in the rural nation — is in need of more power.
Russia had promised to help meet that power by building Mongolia’s first nuclear power plant. A politically well-connected businessman from Ulaanbaatar, whom I caught up with last night over text to ask about the mood in the country, said Moscow’s bid had drawn more positive attention than France’s plans to mine fuel for their own reactors. “In Ulaanbaatar, we experienced electricity shortages last winter that caused apartment heating to stop during the winter. It was crazy,” the executive told me. While he’s typically a critic of the ruling Mongolian People’s Party, which formed out of the old Communist Party apparatus following the fall of the Soviet Union, the executive told me the government’s actions were “good and brave” steps to “diversify investment in Mongolia.”
I hate to close out on a bad note, but this one felt important to include: America’s screwworm problem is getting worse. On Monday, the U.S. Department of Agriculture confirmed the first case of the flesh-eating parasite in a dog in New Mexico, in addition to four cases in total in Texas. “This situation is evolving, and we expect new information to emerge as our investigation continues,” Dudley Hoskins, USDA’s under secretary for marketing and regulatory programs, said in a statement.
Environmental advocates initially opposed SunZia and CHPE, but they love the two transmission projects now.
Over the past few years, I’ve become convinced that the United States will never decarbonize its economy — or renovate its aging electricity sector — without building new, large-scale power lines. There is some good news on that front this month: Two major new transmission projects opened or are about to open, each connecting major cities to abundant sources of zero-carbon electricity.
The first is the Champlain Hudson Power Express, known by its happy-go-lucky initials CHPE and pronounced chippy. It is a 339-mile underground and underwater transmission line, which will ferry 1,250 megawatts of zero-carbon electricity from Quebec’s hydroelectric dams straight into New York City. It officially became operational last week.
The project means that 20% of the city’s electricity demand can now be met by clean electricity. That power will go a long way toward replacing the 2 gigawatts of zero-carbon electricity lost when former Governor Andrew Cuomo shut down the Indian Point Energy Center, a nuclear power plant 24 miles north of the city, following a public campaign led by Robert F. Kennedy, Jr.
The second is the SunZia Wind and Transmission Project, a roughly 550-mile power line that links a gargantuan new 3.5-gigawatt wind farm in New Mexico to energy-hungry cities in Arizona and California. The project began generating power earlier this spring and is set to fully come online this month.
Now that these two new transmission lines are operating, the response from climate and clean energy advocates has been — I would say — solidly positive.
Mayor Zohran Mamdani’s chief climate officer called CHPE “a huge game changer.” Meanwhile, Nic Fulghum, a senior analyst at the climate data think tank Ember, said SunZia is “a truly astonishing project that will remove huge amounts of gas power from California's electricity generation” last month. “Don’t let this be one of the last remnants of US clean power leadership,” he added. (We had Nic on our podcast, Shift Key, to discuss some unrelated good news about the global energy system earlier this year.)
I recount all this not because I disagree with these descriptions — I don’t — but because it is striking to see them stated so forthrightly now. I remember when these projects were getting built and the yearslong permitting battles to secure their construction. I even covered the 20-year fight over SunZia for Heatmap.
The simple, uncomfortable fact is that neither of these power lines commanded such widespread respect from traditional environmental advocates before they became operational. In many cases, in fact, self-described environmentalists led the fights to block them.
The Sierra Club and its local New York chapters, for instance, fought CHPE for years. The club played up the physical impact on the land that, say, the converter station would have in Astoria, Queens. “It is certain that if [the project’s developers] succeed, several New York businesses and their employees will be harmed,” one missive warned.
Other green groups argued that building the line would outsource clean energy jobs to Canada or focused on the Canadian First Nations that opposed the power project. (Other Canadian indigenous groups supported it.)
Hudson Riverkeeper, an environmental group long associated with RFK Jr., first supported the new power line in 2013 as part of its quest to shut down the Indian Point nuclear plant. But in 2019 — two years after Indian Point’s closure was finalized — Riverkeeper revoked its support for the power line and began fighting it. Had Riverkeeper gotten its wish, it would have effectively locked in years of additional fossil fuel consumption in New York.
What’s most astonishing now is the yearslong scaremongering that accompanied the line’s connection to the Canadian government. CHPE draws its energy from dams owned by Hydro-Québec, a government-owned public utility and the provider of some of the cheapest electricity in North America. Today, left-wing advocates such as the Climate and Community Institute celebrate Hydro-Québec as a renewable-rich, government-owned success story.
But in 2018, the Sierra Club derided the proposed power line as a “private roadway” for Hydro-Québec, which it called “a private corporation heavily subsidized by the Canadian government.” Back then, too, the club questioned whether Quebec’s generating fleet — which some progressives now celebrate as abundant “renewable energy” — was truly low carbon.
This isn’t to say that dams can’t produce unexpected carbon or mercury emissions. They can. But the long-running effort to block this project — as compared to the praise for it now — should remind us how fluidly categories can change when a project is online.
If anything, though, SunZia had an even more frustrating story. Back in 2024, I covered the two-decade saga that saw the power line bounce from one permitting review to another.
In that story, I wrote about how the environmentalist Robin Silver, a founder of the Center for Biological Diversity, battled the project’s route through the San Pedro Valley in southeastern Arizona. When I asked Silver why he opposed the clean energy project — even though a natural gas pipeline already transited the valley — he was blunt: The power line was an eyesore. “There are no 200-foot large power lines going through the San Pedro Valley,” he said. “The gas pipeline doesn’t have 200 foot towers.”
Today, that SunZia line — now complete — will help reduce demand for natural gas. If we want to get serious about meeting America’s energy challenges, especially if we also want to reduce carbon emissions at the same time, then we will need many more projects like CHPE and SunZia. They won’t always be popular. But people will love them when they’re complete.
The latest update to the Electricity Price Hub shows a price increase in line with what regulators predicted.
Hawaii already had the most expensive electricity in the country. Then the war in Iran happened.
America’s 50th state has no domestic fossil fuel industry and no access to the continental United States’ natural gas pipeline network, and is therefore uniquely dependent on imported oil to generate electricity. (The state’s last coal plant shut down in 2022.)
While Hawaii’s electricity prices and household bills have spiked along with oil prices since the United States and Israel attacked Iran in late February, the average electricity bill in Hawaii shot up to $248 in May, compared to an already-high $203 in April, according to the latest data in Heatmap and MIT’s Electricity Price Hub, released Monday. The average price of electricity rose by 6 cents per kilowatt-hour, from 46 cents in April to 52 cents in May. Nationally, average prices stand at around 17.5 cents and are up 3.6% (or just over half a cent) from May of last year, with national average bills of $140 per month up about $6 from a year ago.
Hawaii’s eye-watering prices far outmeasure even the state’s peers in expensive electricity. May bills for California were $137, for instance, while prices were 25 cents per kilowatt-hour. In Massachusetts, where prices have also spiked this spring, they only got to 38 cents per kilowatt-hour. Maine, which has been struggling with high prices thanks to high costs linked to storm recovery, prices in May were 28 cents per kilowatt-hour, up about 10% from a year ago, but down substantially from the 35 cents per kilowatt-hour in February.
The situation in Hawaii was pretty much a foregone conclusion way back in April. Hawaii’s Department of Commerce and Consumer Affairs warned customers that bills from Hawaiian Electric, which serves almost the entire state, would almost certainly go up between 20% and 30% from then through June.
“We told our customers to prepare for potential increases in energy costs in the coming months, driven by rising global oil prices linked to escalating geopolitical tension,” Scott Seu, Hawaiian Electric’s chief executive, said in an April earnings call. “Affordability is a core focus of ours, and affordability pressures have intensified given the recent increase in fuel prices across the globe.”
Some Hawaii ratepayers will have the opportunity to claim a one-time credit on their bills this month as part of an annual rate relief drive by the Hawaii Home Energy Assistance Program. The state program is administered through local nonprofits and provides bill credits for households that claim some form of social assistance, like food stamps or Social Security or disability payments administered through Social Security
The benchmark global oil price was sitting at around $70 per barrel in the weeks leading up to the opening of the U.S.-Israel-Iran war, and is now around $95, down from a high of $118. While Hawaii ratepayers probably won’t feel comforted this is far from the worst-case scenario for runaway oil prices as public and private inventories of oil have largely filled the gaps. If the story of the energy effects of the Iran War in the United States is that some combination of trapped natural gas, inventory releases, and healthy domestic production have made the oil price hike manageable, it may only be in the non-insular United States.
According to analysis of price hub data from our partners at CleanEcon, customers in the Lanai division of Hawaiian Electric’s Maui service area faced an 18 cents per kilowatt-hour rise just from “recovery” for high energy supply prices, a nearly 60% hike, which on its own added $76 to average bills compared to the beginning of this year.
The good news is that due to its famously agreeable climate, Hawaiian households consume little electricity compared to the rest of the country. But with those electricity rates, who can blame them.