Iowa
power plants.
Iowa has 87 operating power plants in the catalog, 13,080 MW in all. The catalog also marks 5 plants as Retired, with 825 MW of capacity. Its operating fleet leans on coal, which accounts for 45.5% of operating capacity, with natural gas second at 27.2%. The largest operating plant in the catalog is Walter Scott Jr. Power Station (1,648 MW, recorded start year 1978).
Source: Global Energy Monitor, Global Integrated Power Tracker, March 2026 release II. Catalog content date: .
Source: Global Energy Monitor, Global Integrated Power Tracker, March 2026 release II. Catalog content date: .
Iowa electricity mix
Operating installed capacity by fuel. Each row gives megawatts and its share of the operating total.
Source: Global Energy Monitor, Global Integrated Power Tracker, March 2026 release II. Catalog content date: .
Largest plants in Iowa
Source: Global Energy Monitor, Global Integrated Power Tracker, March 2026 release II. Catalog content date: .
Newest plants in Iowa
Operating plants with the most recent recorded start years. The catalog records years, not full commissioning dates.
Source: Global Energy Monitor, Global Integrated Power Tracker, March 2026 release II. Catalog content date: .
Frequently asked questions
Where does Iowa get its electricity?
Across the 87 operating plants in the catalog, capacity is led by coal at 45.5%, then natural gas at 27.2%. These are installed-capacity shares, not live generation.
What is the largest power plant in Iowa?
The largest operating plant in the catalog for Iowa is Walter Scott Jr. Power Station, a coal facility with 1,648 MW and a recorded start year of 1978.
How many power plants are in Iowa?
The catalog tracks 87 operating power plants in Iowa, with 13,080 MW in all. It also marks 5 plants as Retired, with 825 MW of capacity.