America's Last Coal Plants: Which States Are Still Burning and Why the Exit Is Taking So Long

The last coal-fired power plant in Illinois shut down in July 2023. California closed its last coal plant in 2019. Vermont never had one. But in Wyoming, where coal royalties account for 15 percent of state revenue and where the wind turbines visible from every highway undercut the economic case for coal while the political case remains powerful, the Dave Johnson plant operated until 2022 and the Dry Fork Station near Gillette continues to run. American coal is not going gently.

The Scale of Remaining Coal Generation

The United States had approximately 60 gigawatts of coal-fired generating capacity in operation at the start of 2026, down from 313 gigawatts in 2011. The Energy Information Administration tracks coal plant retirements monthly, and the trajectory is unambiguous: the 2024 retirement total of 7.5 gigawatts was the largest single-year closure in American history, driven by a combination of market economics, the EPA's strengthened Mercury and Air Toxics Standards, and the availability of Inflation Reduction Act tax credits that make replacement with solar plus storage cheaper than maintaining aging coal infrastructure.

What remains is concentrated in a handful of states. Texas still operates over 15 gigawatts of coal capacity, primarily through Luminant's plants in the Panhandle and East Texas. Indiana, which built its economy on cheap coal power from Illinois Basin mines, operates over 7 gigawatts and has been slower than neighboring states to transition. West Virginia, Kentucky, and Missouri round out the top five coal-dependent states, and in each case the closure timeline is determined as much by political economy as by grid reliability needs.

The Grid Reliability Argument

The most durable argument for extending coal plant operations beyond their economic lifespans is grid reliability — specifically, the concern that retiring large, dispatchable generation before sufficient replacement capacity is online will increase the risk of outages during peak demand periods. The February 2021 Texas grid failure, in which 246 people died and $195 billion in economic damage occurred during a winter storm, was caused primarily by failures in natural gas infrastructure rather than by the state's renewable energy deployment, but it was widely cited in arguments for slowing coal retirements across the Southeast and Midwest.

The North American Electric Reliability Corporation, which monitors grid adequacy across the continental United States, has flagged reliability concerns in the MISO (Midcontinent Independent System Operator) region, which covers much of the Midwest, for three consecutive years. MISO's summer reliability assessments project potential capacity shortfalls beginning in 2027 if coal retirements proceed on current schedules without sufficient replacement from batteries, demand response, and transmission expansion. Grid operators have used these assessments to negotiate extensions of coal plant operating lifespans through emergency orders — a process that critics argue creates a permanent emergency state that protects uneconomical assets from the market forces that would otherwise retire them.

The Economics That Make Coal Persist

A fully depreciated coal plant with low fixed costs can operate profitably during peak demand periods even if its average all-in cost per megawatt-hour exceeds that of solar or wind. The dispatchability premium — the value of generation that can be turned on and off on demand, rather than depending on weather — is real and significant in markets where storage is insufficient to cover multi-day cloudy or calm periods. In the short-term energy markets that govern most U.S. electricity trading, coal plants with low marginal costs can clear the market during peak hours even when their full lifecycle costs are uncompetitive with renewables.

This economic dynamic is being eroded by the rapid decline in battery storage costs. Utility-scale lithium-ion battery storage additions in 2024 exceeded 20 gigawatts, and the price of storage has fallen over 90 percent since 2010. As four-hour battery systems become economically dominant, they eliminate the peak-hour market conditions that keep the most economical coal plants viable. The remaining coal capacity will ultimately be retired not by regulatory mandate but by the arithmetic of a grid increasingly dominated by assets with zero marginal cost.

The Communities Left Behind

The human geography of coal plant closures does not align neatly with environmental benefit. The communities that host coal plants are disproportionately rural, working-class, and dependent on the property tax revenue that large industrial facilities generate. The Navajo Generating Station in Arizona, which closed in 2019, had provided 95 percent of the revenue for the Navajo Tribal Utility Authority and supported over 800 jobs in a region with limited economic alternatives. The Energy Communities provisions of the Inflation Reduction Act provide bonus tax credits for clean energy projects sited in communities that have lost coal or fossil fuel employment, but the geographic distribution of new clean energy investment does not perfectly match the distribution of coal closures.

Related: American Industrial Policy | Jobs in Transition Economies | Global Climate Commitments