Extreme Temperature Diary- Sunday September 29th, 2025/Main Topic: Utilities Are Doing Even Worse on Climate Than From 5 Years Ago

Major U.S. utilities earn an ​“F” on a new report card because they’re planning to build far too little clean energy and far too many gas-fired power plants.grist.org/energy/utili…#Climate #Utilities #Research #Science #GreenSky #News

Grist (@grist.org) 2025-09-28T13:56:30.203Z

Utilities are doing even worse on climate than they were 5 years ago | Grist

Utilities are doing even worse on climate than they were 5 years ago

Major U.S. utilities earn an ​“F” on a new report card because they’re planning to build far too little clean energy and far too many gas-fired power plants.

Jeff Swensen / Getty Images

Jeff St. John, Canary Media

Topic Climate + Energy

“From a cost perspective, from a climate perspective, we want to see utilities advocating for getting as much clean energy online as they can,” he said.This story was originally published by Canary Media and is reproduced here as part of the Climate Desk collaboration.

Since 2021, the Sierra Club has been grading U.S. utilities on their commitment to a clean-energy transition. While most utilities have not earned high marks on the group’s annual scorecards, as a whole they had been showing some progress. 

That’s over now. The latest edition of the Sierra Club’s ​“The Dirty Truth” report finds that the country’s biggest electric utilities are collectively doing worse on climate goals than when the organization started tracking their progress five years ago. This year they earned an aggregate grade of ​“F” for the first time. 

With only a handful of rare exceptions, U.S. utilities have shed the gains they made during the Biden administration. Almost none are on track to switch from fossil fuels to carbon-free energy at the speed and scale needed to combat the worst harms of climate change. 

“It’s very disappointing to find we’re at a lower score than in the first year,” said Cara Fogler, managing senior analyst at the Sierra Club, who co-authored the report. But it’s not entirely unexpected.

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Utilities had already begun slipping on their carbon commitments last year in the face of soaring demand for electricity, according to the 2024 ​“Dirty Truth” report, largely in response to the boom in data centers being used to power tech giants’ AI goals. But the anti-renewables, pro-fossil fuels agenda of the Trump administration and Republicans in Congress has pushed that reversal into overdrive. 

“We have a new federal administration that’s doing everything in their power to send utilities in a direction away from cleaner power,” Fogler said. ​“They’re doing away with everything in the Inflation Reduction Act that supported clean energy. They’re straight-up challenging clean energy, as we’ve seen with Revolution Wind,” the New England offshore wind farm that’s now under a stop-work order. ​“And they’re doing everything in their power to keep fossil fuels online” — for example, through Department of Energy actions that force coal, oil, and gas plants to keep running even after their owners and regulators had agreed on retirement dates. 

But utilities also bear responsibility for not doing more to embrace technologies that offer both cleaner and cheaper power, Fogler said. ​“From a cost perspective, from a health perspective, from a pollution perspective, there are so many reasons to build more clean energy and fewer fossil fuels. Unfortunately, we’re seeing that utilities are much less concerned about doing the right thing for the climate and their customers.” 

What’s the score? 

For its new ​“The Dirty Truth” report, the Sierra Club analyzed 75 of the nation’s largest utilities, which together own more than half the country’s coal and fossil-gas generation capacity. The report measures utilities’ plans against three benchmarks: whether they intend to close all remaining coal-fired power plants by 2030, whether they intend to build new gas plants, and how much clean energy capacity they intend to build by 2035. 

As of mid-2025, the utilities had plans to build only enough solar and wind capacity to cover 32 percent of what’s forecast to be needed by 2035 to replace fossil fuel generation and satisfy new demand. While 65 percent of the utilities have increased their clean energy deployment plans since 2021, 31 percent have reduced them. 

Meanwhile, commitments to reduce reliance on fossil fuels have taken a big step backward as utilities have turned to keeping old coal plants running and are planning to build more gas plants to meet growing demand. As of mid-2025, the utilities had plans to close only 29 percent of coal generation capacity by 2030, down from 30 percent last year and 35 percent in 2023. 

And the amount of gas-fired generation capacity the utilities plan to build by 2035 spiked to 118 gigawatts as of mid-2025. That’s up from 93 gigawatts in 2024, and more than twice the 51 gigawatts planned in 2021. 

The Sierra Club is among a growing number of groups demanding that utilities and regulators proceed with caution in building power plants to serve data centers that may never materialize. Forecasted data-center power demand is already driving up utility rates for everyday customers in some parts of the country, and the new gas power plants now in utility plans aren’t even built yet. 

“There is some load we’re naturally going to see — there’s population growth, lots of beneficial electrification we want to see happen,” said Noah Ver Beek, senior energy campaigns analyst at the Sierra Club and another co-author of the report. ​“But we also want utilities to be realistic about load-growth projections.”

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Unfortunately, booming demand growth gives utilities ​“more cover” to invest in polluting assets, Fogler said. Utilities earn guaranteed profits on the money they spend building power plants and grid infrastructure, which gives them an incentive to avoid questioning high-growth forecasts or seeking out lower-cost or less-polluting alternatives. 

Some of the most aggressive fossil fuel expansions are planned for the Midwest and Southeast, including by Dominion Energy in VirginiaDuke Energy in North Carolina, and Georgia Power.

Even the handful of utilities that have previously earned high marks for clean-energy and coal-closure commitments in past ​“Dirty Truth” reports have slipped. Fogler highlighted the example of Indiana utility NIPSCO, which earned an ​“A” in the past four reports but only a ​“B” in the latest, largely due to its plan to rely on gas power plants to meet expected data center demand. 

NIPSCO has ​“no plans to pursue the high-load-growth scenario until they see contracts signed and progress made,” Fogler said — a prudent approach that avoids burdening customers with the costs of new power plants built for data centers that may never come online, she said. ​“The problem? Their high-load-growth scenario calls for all new gas. There should be more clean options.”

Most utilities are not capitalizing on the solar and wind tax credits that are set to disappear in mid-2026 under the megalaw passed by Republicans in Congress this summer, she said. Only a handful of utilities, such as Xcel Energy in Colorado and Minnesota, are accelerating their clean energy deployments to take advantage of those tax credits. ​“We want more utilities to take that period of certainty and speed up what they’ve already planned.” 

Going big on clean energy is also the only way to quickly add enough generation capacity to meet growing demand forecasts and contain rising utility costs, Ver Beek noted. Utilities and major tech companies are pinning their near-term capacity expansion plans on new gas plants, despite the yearslong manufacturing backlogs for the turbines that power those plants and rapidly rising turbine costs.

“From a cost perspective, from a climate perspective, we want to see utilities advocating for getting as much clean energy online as they can,” he said. 

HISTORIC HEAT WAVE IN MIDDLE EAST 46 DEGREES46.0 Turbat PAKISTAN44C On the Omani coast at DibaSeptember records tied at the very end of the month.Next days the WORLD RECORD Of October highest temperature will be threatened.Insane and unprecedented late heat wave.

Extreme Temperatures Around the World (@extremetemps.bsky.social) 2025-09-29T19:10:31.483Z

HISTORIC HEAT IN TANZANIA 🇹🇿The capital Dodoma also breaks its September record with 33.9CNearly 100% of Tanzania has broken heat records this month, like every single tropical countryNino records are being pulverized everywhereThere had never been anything like this in modern climatic history

Extreme Temperatures Around the World (@extremetemps.bsky.social) 2025-09-29T18:37:39.601Z

TROPICAL EXCEPTIONAL HEAT Never ending record heat in the Pacific and Indian Oceans:Yesterday Min 28.6C Male APMALDIVES SEPTEMBER HOTTEST NIGHT IN HISTORY (broken for the 3rd time in few days)Min. 28.2 Mannar SRI LANKA Record again!Min. 25.9C Kupang INDONESIA Sept Record

Extreme Temperatures Around the World (@extremetemps.bsky.social) 2025-09-29T14:43:58.618Z

Few days ago the REUNION ISLAND also had record warm nights:The Minimum of 22.4C on the 18th at St Dennis Gillot is the highest ever recorded in September,few days after getting close to a record low.

Extreme Temperatures Around the World (@extremetemps.bsky.social) 2025-09-29T13:35:06.039Z

EXTRAORDINARY HEAT IN JAPANDespite being the end of the month, September records of highest temperature keep falling: 34.8C today at Miyagi Island,new September record. Summer will extend into October with a new warm spell.

Extreme Temperatures Around the World (@extremetemps.bsky.social) 2025-09-29T10:31:15.079Z

FIERCE SPRING HEAT IN AUSTRALIA >40CRecord heat today in parts of Queensland and the Northern Territory.Up to 40.9C at Mc Arthur which tied its record of September highest temperature.

Extreme Temperatures Around the World (@extremetemps.bsky.social) 2025-09-29T11:32:10.640Z

EXCEPTIONAL MILDNESS IN ANTARCTICADespite being early spring,temperatures have been well above freezing continuosly on the coast with frequent +5C/+7C:Even night minimums remained locally above freezing:In the US Base of Palmer the Tmin was +2.5C/36.5F,September warmest night

Extreme Temperatures Around the World (@extremetemps.bsky.social) 2025-09-29T01:45:15.016Z

CARIBBEAN HISTORIC HEAT WAVE The Caribs are living their harshest heat wave in history with records every single day allover.Today's news:Min 29.4/85F Charlotte AmalieUS VIRGIN ISLANDS HOTTEST NIGHT IN HISTORY (again !)Min 29.1C ST MAARTEN 🇧🇶SEPT HOTTEST NIGHT

Extreme Temperatures Around the World (@extremetemps.bsky.social) 2025-09-28T21:34:01.811Z

Did you know that NOAA has a major office in Asheville? They put together a story map about Hurricane Helene, and it’s the best data resource I’ve seen out there about the storm. I might be a little biased, though, because I have a geography degree and love using GIS to share data.

Alaina Wood (@thegarbagequeen.bsky.social) 2025-09-26T12:58:34.509Z

#ClimateEmergency: "What’s happening in Charleston is playing out in dozens of coastal cities from New York to California."Driven largely by sea level rise, flooding in the coastal United States: scdailygazette.com/2025/09/29/b…

Silicon Valley North – Citizens Climate Lobby (@cclsvn.bsky.social) 2025-09-29T14:06:03.277Z

The report singles out the United States as “the starkest case of a country recommitting to fossil fuels.”insideclimatenews.org/news/2209202…

Silicon Valley North – Citizens Climate Lobby (@cclsvn.bsky.social) 2025-09-29T13:33:48.621Z

My new video…What we know about Atmospheric Rivers: the latest peer-reviewed science… youtu.be/fhWLv4xo4fE?…#climate #ClimateCrisis #ClimateAction #weather #storms #science #physics

Paul Beckwith (@paulhbeckwith.bsky.social) 2025-09-29T03:14:55.181Z

#ScienceUnderSiegesubscriber.politicopro.com/article/2025…

Michael E. Mann (@michaelemann.bsky.social) 2025-09-29T17:43:38.040Z

Yep. The idea that city/state government is going to “maintain the large, complex infrastructure needed to effectively respond to rare catastrophic events is nonsensical. Having a robust FEMA enables the ongoing maintenance of the needed disaster response infrastructure at a federal level.”

Dr. Jeff Masters (@drjeffmasters.bsky.social) 2025-09-29T18:04:33.482Z

After drenching the Bahamas, Bermuda is the next land area that needs to be concerned with Imelda. The latest from @bhensonweather.bsky.social and I:yaleclimateconnections.org/2025/09/trop…

Dr. Jeff Masters (@drjeffmasters.bsky.social) 2025-09-29T17:09:33.172Z

No doubt surfers are stoked about the massive waves along the East Coast this week. But please beware – it’s going to be very dangerous, with very rough surf, and dangerous rip currents due to Hurricane #Imelda and #Humberto Best to stay out of the water!!

Jeff Berardelli (@weatherprof.bsky.social) 2025-09-29T19:56:09.342Z

Kudos to Google Deep Mind AI.This graphic is from Sept 25 when most models were showing a landfall of #Imelda in NC/SC. Google AI has consistently been showing a hard right turn. There were a couple of runs where it was closer to the coast, but overall the theme from Google AI was “out to sea” 1/

Jeff Berardelli (@weatherprof.bsky.social) 2025-09-29T12:58:50.983Z

Dancing Cyclones! A great example of how 2 tropical cyclones interact. The size and proximity matters. In this case huge #Humberto is able to drag #Imelda offshore, likely saving the SE US from a landfall.Below learn more about Hurricane interactions in my Weather Professor Caricature short!

Jeff Berardelli (@weatherprof.bsky.social) 2025-09-28T13:21:14.420Z

#Movies: “It’s a horror film where the monsters are fire that you see." Paul Greengrass's new film on the #CampFire in Paradise. www.sfchronicle.com/entertainmen…

Silicon Valley North – Citizens Climate Lobby (@cclsvn.bsky.social) 2025-09-29T14:03:31.276Z

Meta is constructing its largest data center yet: a $10 billion facility in Louisiana, as big as 70 football fields, requiring more than twice as much electricity as the City of New Orleans.Louisiana has had to greenlight $3 billion in new energy infrastructure to service Meta's facility.

Mississippi Free Press (@mississippifreepress.org) 2025-09-29T17:44:21.998Z

“With this announcement, the administration is saying that public lands should be managed primarily for the good of powerful drilling, mining and development interests” Trump's BLM Dismantling Conservationinsideclimatenews.org/news/1009202…

Silicon Valley North – Citizens Climate Lobby (@cclsvn.bsky.social) 2025-09-29T13:37:05.248Z

Please do NOT confuse #ScienceUnderSiege with the similarly-titled “The War On Science”. We beg of you!

Michael E. Mann (@michaelemann.bsky.social) 2025-09-29T00:07:05.310Z

A hotter world means more people will need AC–which means more electricity use and more emissions. This new AC technology can cut that problem in half. www.thecooldown.com/green-tech/e…

CCL Raritan Valley (@cclraritan.bsky.social) 2025-09-29T13:26:57.815Z

Take a minute to reconnect with nature.Then get back to life. @maria1962.bsky.social@moberzan.bsky.social @misslizzy.bsky.social @dontdeflect.bsky.social @eileenmclaughlin.bsky.social@bojey.bsky.social @shelbienameless.bsky.social @noofieninja.bsky.social @simplycommonsense.bsky.social

(@elitemauiteambldg.bsky.social) 2025-09-29T17:03:22.802Z

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