By Dan Gearino for Inside Climate News.
Broadcast version by Joe Ulery for Indiana News Service reporting for the Solutions Journalism Network-Public News Service Collaboration

Duke Energy is proposing a three-year extension for the Gibson power plant in southwest Indiana, the second-largest coal-fired power plant in the country.

Gibson, originally scheduled to close in 2035, would remain open until 2038 and would get a retrofit to be able to run on natural gas or coal, according to a plan the utility released this week.

Duke said the proposal, if adopted by state regulators, will give it the resources and flexibility needed to handle a projected increase in electricity demand. At the same time, environmental advocates said the plan reflects an overreliance on fossil fuels and is a retreat from what they already saw as a weak approach to reducing emissions.

The dynamics in Indiana are similar to other states as the growth of data centers and regulatory backlogs in building renewable energy are making utilities more cautious about closing fossil fuel power plants.

But Indiana is a special case for a few reasons, including its history of coal mining and its heavy use of coal for producing electricity. The state ranks fourth in the country in electricity generation from coal, behind Texas, West Virginia and Kentucky, according to the Energy Information Administration.

Just a few years ago, Indiana was notable for taking steps away from coal. One of its utilities, NIPSCO, got national attention for its plan to close all its coal plants by 2028. Three years ago, the utility AEP said it would close the Rockport coal plant, the second-largest in Indiana and among the 10 largest in the country, by 2028.

The new Duke plan, which covers its Indiana power plants through 2044, is likely to add to concerns that Indiana utilities are backsliding on the progress they seemed to be making.

“These utility commitments are not really commitments,” said Ben Inskeep, program director for Citizens Action Coalition, a consumer and environmental advocacy group based in Indianapolis. “When the utility says they’re doing X by Y year, you know, if there’s no law forcing them to do so, they can change those plans on a dime.”

Indiana law requires electricity utilities to issue long-term plans for power plants every three years. Regulators will review the filing, take testimony from interested parties and then issue comments.

Nathan Gagnon, Duke’s managing director for Midwest resource planning, explained the proposal during an hours-long video meeting with interested parties. He spoke about a summary of the plan, with a more detailed filing to come in November.

“Coal drops off pretty steeply,” he said about the later years under the proposal. “There’s not much coal in the mix after ‘31 when you get down to it.”

He fielded questions from viewers, including members of the public, who had concerns about climate change and also wanted the company to explore developing new nuclear plants.

His answers highlighted that it takes years to implement big changes to electricity resources and that the company is looking for scenarios that have low costs while still meeting customers’ needs and following federal emissions rules.

Duke, based in North Carolina, is one of the country’s largest utilities, with customers in the Carolinas, Florida, Indiana, Kentucky and Ohio.

It is proposing various changes to the five generating units at Gibson, which together have a summer generating capacity of 3,132 megawatts. Southern Co.’s Plant Bowen in Georgia, with capacity of 3,200 megawatts, is the only coal-fired plant that’s larger.

Under Duke’s preferred planning scenario, Gibson units 1 and 2 would be retrofitted by 2030 to be able to burn both coal and natural gas. Units 3 and 4 would be replaced by natural gas generating units by that same year and have no timetable for closing. Unit 5 would close by 2030.

Duke also is proposing to convert the Cayuga and Edwardsport coal plants to run on natural gas. (Edwardsport is unlike the other coal plants in that it uses a “coal gasification” technology that Duke once promoted as highly efficient, and now would be replaced by a less expensive process.)

Duke’s plan includes several gigawatts of new wind and solar, but most of this is in the last few years of the timeline.

The slow rollout of renewables is a detail that jumped out to Brendan Pierpont, director of electricity modeling for the think tank Energy Innovation. He said Duke’s modeling of future costs of renewables look high to him, and creates a distorted picture.

“That’s a clear place where they have put their thumb on the scales,” he said.

He said Duke’s lack of near-term progress on renewables detracts from the company’s credibility when it talks about reducing emissions.

Duke issued this statement along with the plan:

“Duke Energy’s carbon emissions reduction goals remain unchanged, but our progress will not be linear as we retire coal and bring new generation resources online. Over time our diverse energy mix will enable us to reach our 2050 net-zero carbon emission ambitions.”


Dan Gearino wrote this article for Inside Climate News.


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Minnesota is cited in a new research brief outlining the obstacles America would face in trying to reopen coal plants, an idea prioritized by the Trump administration.

President Donald Trump has signed an executive order aiming to boost coal production, despite coal's shrinking presence in the energy sector.

The administration said the move can help meet growing electricity demand with the emergence of data centers but the Institute for Energy Economics and Financial Analysis predicts giving coal-fired power plants new life would be costly.

Dennis Wamsted, energy analyst at the institute, said it does not make sense.

"It's not an 'evil conspiracy' to push coal out of the market," Wamsted pointed out. "The reality is that coal is the most expensive resource, and so it is rightfully used the least, or used last."

He points to Xcel Energy's Sherco facility near the Twin Cities, a coal plant being phased out and replaced with a massive solar operation. Wamsted noted utilities are planning for other sources because they have proved to be reliable and less costly. The analysis found 24 of the 102 recently closed U.S. coal plants are already torn down and restarting others would require big investments due to their age.

Wamsted added time is another problem because of the maintenance backlog in getting coal plants back online or in some cases rebuilt. He argued investors would not be interested in waiting to get an older plant reopened only to shut it down again because of the declining appetite for coal.

"In 20 years or 30 years, that plant, which would still be relatively new, would probably be what we call a stranded asset," Wamsted stressed.

Like clean energy infrastructure, Wamsted said ratepayers would be asked by utilities to cover the construction costs for increasing coal production. The difference, he explained, is sources like wind and solar are poised to stick around much longer and they do not have the price volatility linked with fossil fuels.

A bill to promote virtual power plants goes before the California State Assembly Utilities and Energy Committee next week. Virtual power plants are networks of home energy devices like smart thermostats, stationary home batteries, and electric vehicles that can be used as power sources during peak hours, which lowers the amount of power that electric utilities have to provide.

Assemblymember John Harabedian, D-Pasadena, said virtual power plants would reduce the need to build costly transmission lines and polluting natural gas plants.

"This bill, really in utilizing virtual power plants, is about affordability and reliability and sustainability. It's a cost-saving measure, and it's also an easier way to meet demand throughout the state during peak hours," he explained.

At least 300,000 Californians are already getting paid as part of the Demand Side Grid Support program, agreement that allows the utilities to pull power stored in their smart devices' batteries to power their home.

Harabedian said Assembly Bill 740 would direct the California Energy Commission to make plans to expand the use of virtual power plants, following the success of a pilot program.

"It has prevented blackouts. It has delivered over 500 megawatts of capacity, about the same as three gas peaker plants, and has saved millions of dollars already," he continued. "So, the pilot program has been undeniably successful. We just need to scale it."

A recent study found that virtual power plants could save California residents $750 million per year in traditional power system costs. Some are concerned that utilities may earn less money if the programs expand. So far, there is no registered opposition to the bill.


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While Nevada ranks among the top states for electric vehicle sales, one local business says it is seeing less demand for charging stations, and has to make some tough decisions as the Trump administration cuts climate and infrastructure investments. Allegiant Electric LLC in Las Vegas installs residential and commercial EV charging stations.

Andrea Vigil, chief operating officer of Allegiant Electric, said they were ramping up for a project for the U.S. Postal Service - but were notified it had been shelved. It's just one of the setbacks they've faced as Trump rescinds unspent Inflation Reduction Act funds. Vigil said not only will the clean energy economy take a hit, so will businesses like hers.

"We've already had to reduce some of our employees just because of, you know, the fact that there has been a decline in the installation requests on the EV chargers," she explained. "That is actually a big part of our business."

EVs accounted for about 8% of new car sales in the U.S. last year, partly thanks to Biden-era tax incentives and policies that sparked buyers' interest. Automakers had also prioritized EV production. But with Trump in the White House, Vigil says she and her husband will have to pivot on their business strategies.

Vigil added that Trump's tariffs have also been difficult to adapt to, and they've already noticed their material costs skyrocket.

"A lot of the material on the electrical side comes from Mexico and it needs to cross over, back and forth, eight times just before it's able to get into the United States," she continued. "We just bought a roll of wire, it was just a fourth of what we normally get - and the price has nearly tripled."

Paul Bordenkircher, president of Nevada EV Association, said due to the president's relationship with Elon Musk, many folks in the market for an EV are steering away from Tesla. He says other brands, like Hyundai and Kia, are profiting.

"I see other brands picking up some of the uptake with, unfortunately, Tesla's decline in sales. Because people are discovering that yes, there are other options, that EVs don't just exist from the Tesla brand," he contended.