America’s power system is constantly changing. Much has been said about changes to demand (data center buildouts, electrification, reshoring manufacturing) and the need to increase supply as a result, but many end-of-life plants are also being taken offline. This map covers generating capacity that came online, is scheduled to come online, retired, or is slated to shut down between 2015 and 2035: 701 GW of additions and 258 GW of retirements, against a fleet that runs 1405 GW today. Each unit is shown by location, timing, fuel or technology, and how much capacity it adds or takes away.
Every figure comes from the EIA-860M Preliminary Monthly Electric Generator Inventory, June 2026 edition, which utilities and independent power producers file with the U.S. Energy Information Administration. Capacity is nameplate megawatts. Puerto Rico is reported separately by the EIA and is excluded here.
A unit counts as coming online on its commercial operation date and going offline on its retirement date. Dates after June 2026are the operator’s own projection: 285 GW of the additions shown have not been built yet, and 167 GW of once-planned capacity has already been canceled or postponed. The Timing control at the top lets you look at what has already happened versus what is still only scheduled.