The American power fleet, plant by plant
U.S. Energy Information Administration, Preliminary Monthly Electric Generator Inventory, September 2026, released 23 October 2026. Nameplate capacity, plants of 1 MW and above.Settled fact
What the fleet runs on, and what it is adding
Operating capacity by fuel, set against everything now planned or under construction. Natural gas carries the fleet; solar and batteries carry the build.
EIA-860M, September 2026. Gigawatts of nameplate capacity. Storage is batteries, pumped hydro and flywheels.Settled fact
State by state
Pick a state
Tap any state for its fleet, its fuel mix and its largest plants. The plant list below follows your choice.
EIA-860M, September 2026. State outlines: U.S. Census Bureau cartographic boundaries.Settled fact
What is being built, and when it is due
Every planned generator by the year its developer expects it in service, and how far along it is today.
EIA-860M, September 2026, planned generators. Expected years are the developers' own and tend to slip.Firm judgment
What has come off the grid
Every generator retired since 2002, by the year it closed.
EIA-860M, September 2026, retired generators.Settled fact
Who runs the fleet, and who is building
Largest operators by operating capacity
Largest developers by planned capacity
EIA-860M, September 2026. The operator is the company or public body that reports the plant to EIA; ownership can be shared or held by an affiliate.Settled fact
Every plant
| Plant | Operator | State | County | Main fuel | Operating MW | Planned MW | Retired MW | First online | Planned online |
|---|
How to read it
- Source. U.S. Energy Information Administration, Preliminary Monthly Electric Generator Inventory (based on Form EIA-860M), September 2026 edition, released 23 October 2026. It covers every U.S. plant with at least 1 megawatt of combined nameplate capacity, including Puerto Rico. EIA calls the capacities its best preliminary estimates.
- Plants and generators. EIA reports generators. The Atlas groups them into plants; a plant can hold operating, planned and retired generators at once. The main fuel is the fuel of its largest capacity.
- Operating. Generators in service, on standby, or out of service but expected back next year. Generators out of service and not expected back (10.6 GW) are left out of the operating totals.
- Being built and planned. Built, not yet in service; Under construction, over half done; Under construction, under half done; Approved, not started; Awaiting approval; Planned, approvals not started. Under construction counts the first three.
- Capacity. Nameplate megawatts (MW); one gigawatt (GW) is 1,000 MW.
- Refresh. EIA updates this inventory every month; the Atlas is rebuilt from each new edition.