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The problem isn’t just affordability, two researchers from Heatmap and MIT’s Electricity Price Hub argue. Bill volatility also creates pain for electricity consumers.

Americans have come to expect shocking electricity bills, especially in the summer months. The latest data from the Electricity Price Hub makes clear: Households in every region of the country are seeing not just record high July bills, but also bills that are sharply higher than even just a few months before.
Some may see these trends and argue that utilities and regulators set rates, but bills are ultimately the result of consumer choices about how much electricity to use. But that narrative misses the mark for a simple reason: How utilities and regulators design rates influence both summer bill swings and how much electricity consumers use. Seasonal rates and other features of electricity pricing can exacerbate summer bill swings and inform customers’ decisions about whether certain electricity uses — even running the air conditioner on an extremely hot day — are worth it.
The scale of this summer’s electricity bill increases is striking. Nationwide, the average household electricity bill was $90 per month, or 71% higher in July than it was in April of this year. Not only are bills up, they are up from a high base. The national average bill in April 2026 was higher than any previous April average in the Electricity Price Hub data, and 37% higher than the national average in April five years ago.
These trends are not just driven by a few states. There are households in every corner of the country experiencing sharp increases in their power bills this summer.
At the state level, average household bills have increased the most in New Jersey (up 163%), Nevada (157%), and Oklahoma (133%), but bills have at least doubled in 11 states and are up 1.5 times in 24 more.
In 19 different states, average household bills from major utilities at least doubled from April to July, adding between $72 and $214 per month to their average customers’ bills. In 12 of those states — including some in the Northeast, Mountain West, South, and Southeast — more than 40% of all households are served by utilities whose average bills have at least doubled this summer.
Greater electricity use is a big part of what’s at play in these trends, but it’s not the whole story. Higher summer rates also contribute, in many cases. Rate design, market conditions, and regulatory processes can all cause electricity prices to change throughout the year.
Some utilities, for instance, have rates that vary seasonally, automatically adjusting in the summer months. Seasonal rates contribute to summer bill increases for eight of the 10 utilities whose average bill increased most from April to July. For three of those utilities, over half of the April-to-July increase was driven by seasonal rates. For another five, seasonal rates play a meaningful role, compounding usage-driven increases. For only two does the increase come back to usage alone.
Taken together, these findings suggest that summer bill shocks are not simply a function of warmer weather. In many cases, they also reflect deliberate choices about how utilities price electricity during the summer months.
Even where higher usage is the primary driver of rising summer bills, the way utilities structure rates influences how much customers can save by using less electricity or shifting when they consume power.
Across the utilities with the largest April-to-July bill increases, there is considerable variation in how they calculate a customer’s monthly bill. All include a mix of fixed monthly fees and charges based on usage, measured in dollars per kilowatt-hour. But the balance between these components differs significantly, with fixed charges contributing from 4% to 23% of average bills over the past 12 months. Some utilities apply the same per kilowatt-hour rate year-round, while others increase rates in the summer. For some, the same rate applies to the total amount of electricity customers use in a month, while others have rates that increase for higher tiers of usage.
That means the design of residential rates also determines how much households actually benefit from using less electricity. Two households may receive similar-sized bills, but depending on how their utilities structure their rates, customers can see very different savings from cutting back.
The three New Jersey utilities in the top 10 illustrate one approach: They all have relatively small fixed customer charges, along with per-kilowatt-hour rates that vary both seasonally and by usage tier. For example, Jersey Central Power & Light’s distribution charge shifts from a single volumetric charge in the winter to a tiered structure in the summer, with usage above 600 kilowatt-hours priced at a higher rate. This structure contributes to sizable seasonal bill swings, but it also creates a strong financial incentive to limit summer usage.
The average household in JCP&L’s service area used more than 1,000 kilowatt-hours in July 2025. Had that household used 15% less electricity, it would have saved roughly $50 that month; a 25% reduction would have saved $82. At current rates, a 25% reduction in usage would cut the average bill by 28%, and every 4 kilowatt-hour reduction in usage over 600 kilowatt-hours saves a dollar.
Nevada Power takes a different approach. Its residential rate consists of a larger fixed customer charge — contributing 14% of total average bills over the last year — and a set of volumetric rates that do not vary by season or usage level. As a result, consumers have less of a financial incentive to reduce consumption. A household would need to reduce usage by roughly 8.4 kilowatt-hours to save a dollar, and cutting electricity use by 25% would reduce the bill by about 23% — meaningfully less than under JCP&L's structure.
While seasonal variability in bills is expected and not on its face problematic, it is important to recognize that unpredictability and month-to-month volatility in power bills can compound energy affordability challenges. And although regulators cannot control the weather, the choices they make about rates influence the agency households have in managing their bills each month.
This then raises the question: Should utilities and regulators consider bill stability and its impact on affordability in setting rates? Staff for the Arizona Corporation Commission, which is currently considering requests from the state’s two investor-owned utilities to raise average household bills by around 15%, recently testified that “affordability and energy burden are not pertinent to ratemaking” — that they are, instead, “societal issues.” But that is exactly the wrong sentiment.
Affordability and bill stability both deserve to be explicit considerations in ratemaking, carefully weighed against other objectives and not dismissed or treated as an afterthought. Doing so may look different in different places and does not require prioritizing bill stability over all else. But where households are struggling to manage unpredictable power bills, regulators should be sensitive to those trends and lend greater weight to measures that boost households’ ability to manage usage and limit bills, should they choose to.
That may mean more effective and targeted energy efficiency and demand response programs and incentives for utilities to promote uptake. In some cases, it may call for better customer education on available rate schedules and ways to manage bills, and ultimately it may require more modern rate design. Whatever the response, stability is part of affordability. Wild bill swings add to the burden of record-high bills — a fact that utilities and regulators cannot afford to ignore.
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Voltpost announced two new models today designed to mount on walls and ceilings.
Voltpost, the company putting electric vehicle chargers on lampposts, is now expanding to parking garages.
On Wednesday, the company unveiled two new configurations that can attach to the walls and ceilings of parking garages, lots, and other locations without easy access to streetlights or utility poles. Like Voltpost’s signature pole-mounted design, the ceiling- and wall-mounted options avoid the expensive construction work required by freestanding charging infrastructure. In theory at least, that should allow the company to deploy more chargers faster.
“Our mission has always been to decarbonize mobility by democratizing charging access,” Jeff Prosserman, Voltpost’s co-founder and CEO, told me. “And the real value proposition is that, when you can leverage the existing infrastructure, you can significantly reduce the cost, the timeline, and the physical footprint of chargers.”
The second Trump administration hasn’t made things easy. Almost immediately after taking office, Trump officials began slashing Biden-era programs designed to support the EV charging buildout, including the National Electric Vehicle Infrastructure and Charging and Fueling Infrastructure programs. Along with a handful of environmental groups, 17 states sued in May of last year to force the federal government to release NEVI funding and quickly received a preliminary injunction unfreezing the program. A similar group sued in December over the CFI funding, and though that case is still pending, Prosserman told me he expects to see a positive resolution before the end of the year.
Though the death of the EV tax credit has shrunk its addressable market, Voltpost has emerged relatively unscathed. “Honestly, that doesn’t really impact us at all,” Prosserman told Heatmap’s Katie Brigham last year. “At the end of the day, EV adoption will either increase X or Y percent in a given year, but it’s going to continue to increase year over year. We’re past the tipping point, going from early adopters into the mainstream.”
That said, he also told Katie that the company was taking a “more conservative approach” to growth as climate tech investment dried up. Voltpost itself also received several federal grants that are still in limbo. Instead, the company focused on its strategic partnerships with the likes of AT&T and Zipcar, and in July signed an agreement with InCharge Energy to handle installation and maintenance. To date, Voltpost’s funders include RWE Energy Transition Investments, a private equity vehicle within German energy giant RWE, alongside Twynam Funds Management, Exelon Foundation, Good News Ventures, and Climate Capital.
Like its lamppost chargers, Voltpost’s wall- and ceiling-mount kits work with Tesla and non-Tesla vehicles alike, and come with demand management software that responds to electricity time-of-use price signals to enable cheaper charging where and when possible. As for the cost of the kits and how many the company plans to install initially, Prosserman wouldn’t say.
Since deploying its first lamppost chargers in New York in 2024, Voltpost has expanded into California, Massachusetts, and Washington, D.C., among other states. It has more than 100 deployments in the pipeline through the end of this year, and is aiming for 10,000 by 2030. The point, Prosserman told me, is not to stand out in these communities, but rather to fit in.
“It’s not going to be just about greenfield project development if we’re going to decarbonize a planet across all aspects,” Prosserman said. “We’re really looking at building something that’s integrated, that fits in the fabric of the built environment and communities.”
Current conditions: A sleepy Atlantic hurricane season just snapped to attention as two tropical storms started forming near the Caribbean and off Africa’s coast • Southern California is bracing for a week of triple-digit temperatures • The Hawk Fire has forced 42,000 people to evacuate an area near Reno, Nevada.
The Environmental Protection Agency plans to repeal a federal rule requiring states to publicize and solicit comments on applications for air pollution permits for various industrial facilities, including new data centers and power plants that provide the electricity they need. The move, The New York Times cautioned, “could prevent residents from raising concerns about — or even learning about — data centers before permits are approved and construction starts.” Three-quarters of Americans now oppose data centers built near their homes, according to the latest polling from Heatmap Pro. That’s up from less than half last year.
The Trump administration’s effort to curb public input comes as local opposition to data centers reaches an intensity that frequently draws comparisons to a moral panic. In a post on X last week, one commentator compared the backlash to a 2004 newspaper clip in which a pregnant woman photographed smoking a cigarette complains that the sound of jackhammers from construction on her block posed a risk to her unborn child. A video circulating on Facebook this week showed the former mayor of the Upstate New York town of Massena, where census data shows one in four residents lives below the poverty line, pleading with residents to consider the benefits of data centers. “They’re data centers. They’re being built somewhere. Communities are accepting these things,” he said, urging residents holding protest signs to listen with an open mind to experts about how a proposed facility would be built. “I know for a fact we have aging infrastructure. It’s just going to get worse. How do you fix that? We’re losing people left and right in this community. Look at the number of boarded-up houses. Look at the number of businesses that are going out of business … You can’t afford the time it’s going to take to research for three years when these things are being built today.”
As you may recall, the Trump administration last week imposed harsh water cuts on the three states in the Lower Basin of the Colorado River: Arizona, California, and Nevada. This week, Nevada Governor Joe Lombardo, a Republican, announced litigation filed in federal district court challenging the Department of the Interior’s plan, arguing that the cuts unfairly harm downstream states like his. The lawsuit makes Nevada the first of the three states to launch what E&E News called a “legal war” against the policy. Under the Trump administration’s proposed plan, southern Nevada could lose more than 70% of what Lombardo called its “already meager Colorado River allocation,” even though Colorado, Utah, New Mexico, and Wyoming “are not required to contribute a drop.” The governor, who is up for reelection, continued: “This isn’t about political posturing; this is a matter of survival for a community that represents about two-thirds of our state’s citizens and the lion’s share of its economy.”
Between 2010 and 2024, the United States imported about 59 terawatt-hours of electricity per year from Canada, and exported roughly 13 terawatt-hours back north across the border. America’s appetite for Canadian electricity is only likely to increase as our northern neighbors build more nuclear reactors, hydroelectric dams, and offshore turbines in areas such as the Northeast, among (I say, haughtily clearing my throat as a fourth-generation New Yorker) the most densely populated and culturally powerful parts of the entire U.S. Now that’s under threat as Canadian Prime Minister Mark Carney plays hardball with President Donald Trump in floundering trade talks. After summoning home its trade negotiators over the weekend, Ottawa announced retaliatory tariffs against the U.S. on Tuesday, slapping levies of up to 50% on about $20 billion in goods. On Monday, Ontario Premier Doug Ford said his province could cut off electricity and critical mineral exports to the U.S. “We power 1.5 million homes and businesses,” Ford told the Associated Press. “Everything’s on the table. I’ll do whatever it takes.” While the BBC reported that “squeezing the U.S. on energy is not a current countermeasure,” it also said that such a response “hasn’t been ruled out.” In statements to Utility Dive, the grid operators in New York and New England said new tariffs would not affect reliability, though the latter region cautioned that it could face problems during extreme weather events.
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European buyers of liquified natural gas paid $22.83 for a million British thermal units at the start of this week, more than double the price a year ago and the highest since 2023, according to the Financial Times. The surge came as Iran struck an oil tanker trying to cross the Strait of Hormuz, damaging its engine room and halting the ship. Trump said Tuesday that all underwater mines the Iranian military had laid were now cleared from the waterway. Tehran is set to begin talks with neutral Oman on a route for fully reopening the strait, the Oman Observer reported.
The spike in European LNG prices serves as a reminder of the benefits for the U.S. of becoming the world’s top producer of natural gas and exporter of the version that’s super-chilled to a liquid state for more efficient transportation. LNG, as my colleague Matthew Zeitlin wrote in February, “is the ultimate bogeyman” for many progressives and climate activists. But the American industry, transformed by the fracking revolution over the past two decades, had more than enough supply to help Europe stay warm and keep the lights on in 2022, when Russia started throttling the pipelines selling gas to Ukraine’s allies after the start of the war. “The world is going to keep needing natural gas at least until 2050, and likely well beyond that,” John Hebert, a senior policy adviser at the advocacy group Third Way who is pushing for Democrats to embrace LNG, told Matthew. “The focus, in our view, should be much more on how we reduce emissions from the oil and gas value chain and less on actually trying to phase out these fuels entirely.”

When I visited the Netherlands’ lone nuclear power station in 2022, the single-reactor plant, called Borssele, stood alone next to a demolition site dismantling the power station. But soon the country plans to finally expand its atomic power sector. On Tuesday, NucNet reported that the Dutch nuclear energy agency had signed contracts with France’s EDF and the U.S.-based Westinghouse Electric Company for design studies on at least two new reactors. The advancing plans are a sign of how quickly things are changing in the region. At the end of my visit six years ago, I stood atop a high berm — classic Dutch engineering to reclaim the land and keep the floodwaters at bay — at the end of the facility and caught a glimpse at northern Belgium. Back then, Brussels was shutting down its own nuclear fleet. Now, as I reported earlier this year, the country has nationalized its reactors and plans to revive its industry.
Wildfire smoke is nasty stuff. That’s not news to anyone living in the American West, but we in the Northeast learned the hard way just how harmful it is when Canadian smoke poured into our cities this summer and in 2023. But that smoke can have a benefit, at least when rain carries it into soil: It acts as a fertilizer. A new study found that smoke-rain events can deliver large bursts of nitrogen, phosphorus, and potassium as black soot in the air mixes with water droplets. “It’s important to remember that what goes up must come down,” Alexandra Ponette-González, an urban ecologist at the University of Utah and Natural History Museum of Utah and the lead author of the paper, said in a statement. “There’s so much focus on what goes up and how that affects human health. We’re interested in everything that falls out of the atmosphere and lands on ecosystems, and what that means for our environment.”
The singer’s music spanned genre and generating technology — and asked how to live in a world on fire.
This is an edition of Heatmap Daily, an evening review of the day’s news written by our executive editor. Sign up for it here.
Even as state-level Republicans have started talking about the data center boom more skeptically, the Trump administration keeps hugging it.
The Environmental Protection Agency will ditch a federal rule requiring states to publicize air pollution permits for major new industrial sites, including data centers and off-grid power plants, The New York Times reports. Those are some of the permits that we used in our recent reporting to, for instance, make sense of the scale of the coming gargantuan gas buildout. This policy might make sense as realpolitik in a more subdued development environment, but I don’t understand it when trust in any type of project is so low — and when even a majority of Republicans have turned on local data center development.
We badly need insight into the scale of artificial intelligence energy use right now, but this policy could make things even more uncertain. It reveals, too, just how much President Trump has fallen out of touch with the public.
I was planning on writing about a different topic today — and then Dolly Parton died. The country legend was 80 years old. Her nephew announced her death on social media in a sad, sweet, and lovely video.
What can I say? She was among the most admired living Americans. So voluminous and impressive was her legacy that I don’t even have to stretch much to find an energy or climate angle in it. How many other musicians were born in a home without heat or electricity — but would be eulogized upon their death by the public utility from their Tennessee Mountain Home?
Her music spanned genres and generating technologies. Some of our readers may appreciate her trio with Emmylou Harris and Linda Ronstadt of Neil Young’s environmentalist classic “After the Gold Rush”; others, her takes on lighting — or liquid combustion. But most will enjoy the lead single off her final album, where the studiously apolitical singer confronted the prospect of a burning world: “Now I ain’t one for speaking out much / But that don’t mean I don’t stay in touch,” she sang. “Liar, liar the world’s on fire / What we gonna do when it all burns down?”
In a fluke, the next tropical cyclone to form in the Atlantic basic will — according to the World Meteorological Organization’s 2026 list — be named Dolly. Let’s hope it puts on a show but doesn’t find any islands in its stream.