September 22, 2025
As data centers spike electricity demand across Louisiana, communities and businesses across the state are facing rising bills depending on how utilities respond.
coal
September 22, 2025
Knoxville, TN - The Tennessee Valley Authority has received a poor grade on the Sierra Club’s Dirty Truth Report for the fifth year in a row. TVA received a ‘D’ on the report because of the utility’s massive gas buildout and slow adoption of clean energy. Exacerbating rising energy prices, TVA isn't adding cheaper, cleaner energy fast enough.
September 22, 2025
Washington, D.C. - Today, the Sierra Club released its annual Dirty Truth Report, which grades 75 utilities across the country on their plans to retire coal plants by 2030, not build new gas plants through 2035, and transition to clean energy through 2035.
September 22, 2025
The report shows Arizona utilities are failing to protect the state’s communities and businesses from rising costs spurred by record demand and worsening climate impacts by continuing to push for costly fossil fuels over more affordable and cleaner renewable energy. In contrast, New Mexico’s utilities, specifically PNM, are pushing forward on all new resources powered by clean energy.
September 22, 2025
North Dakotans are facing the consequences of a grid reliant on polluting fossil fuels, which include dirtier air from haze and dirtier water from coal ash pile groundwater pollution, in addition to higher energy bills.
September 22, 2025
Kansas City, Mo – None of the three largest electric utilities in Missouri and Kansas improved their scores in the Sierra Club’s annual Dirty Truth About Utility Climate Pledges report, which is an apples-to-apples comparison of utility energy plans throughout the country. The report grades 75 utilities across the country on their plans to retire coal plants by 2030, not build new gas plants through 2035, and transition to clean energy through 2035.
September 22, 2025
Indianapolis, Ind – None of Indiana’s five monopoly electric utilities improved its score in the Sierra Club’s annual Dirty Truth About Utility Climate Pledges report, which is an apples-to-apples comparison of utility energy plans throughout the country. The report grades 75 utilities across the country on their plans to retire coal plants by 2030, not build new gas plants through 2035, and transition to clean energy through 2035.
September 22, 2025
Orlando, FL – Duke Energy Florida’s lackluster investment in renewable energy and ongoing commitment to burning coal and gas earned the utility an 8% (F) in the fifth installment of the Dirty Truth About Utility Climate Pledges report, released today. Duke Energy Florida’s inaugural score was 1% (F) in 2021 and peaked at 10% (F) in 2023.
September 22, 2025
Columbia, S.C. – An annual apples-to-apples comparison of utility energy plans once again reveals that Dominion, Duke Energy, Santee Cooper are among the dirtiest utilities, and their plans to invest in renewable energy are substantially behind their peers throughout the country.
September 22, 2025
Raleigh, N.C. – An annual apples-to-apples comparison of utility energy plans once again earns Duke Energy the dubious distinction as one of the country’s dirtiest utilities, and its plans to invest in renewable energy is substantially behind its peers throughout the country.
September 22, 2025
This year’s Dirty Truth, released today, shows that most Texas utilities aren’t doing enough to deliver affordable, clean energy, despite electricity bills increasing faster than inflation – particularly in the Lone Star State.
September 18, 2025
COLUMBIA, S.C. - Santee Cooper has released its 2025 Integrated Resource Plan update, rolling back the retirement of several coal plants while refusing to invest in sufficient low-cost renewable energy.