Operating expenses for conventional and pumped storage hydroelectric power plants run by major United States investor-owned electric utilities totaled 14.71 mills per kilowatt-hour in 2023. According to the source, a mill is a monetary cost and billing unit equal to 1/1000 of the U.S. dollar (equivalent to 1/10 of one cent). That same year, operating expenses for fossil steam power plants amounted to 42.67 mills per kilowatt-hour.
Average expenses for the operation of hydroelectric power plants run by major U.S. investor-owned electric utilities from 1998 to 2023
(in mills per kilowatt-hour)
Includes operation, maintenance, and fuel expenses.
Including both conventional hydro and pumped storage.
This statistic was compiled using several releases of the publication.
A mill is a monetary cost and billing unit equal to 1/1000 of the U.S. dollar (equivalent to 1/10 of one cent).
Profit from the additional features of your individual account
Currently, you are using a shared account. To use individual functions (e.g., mark statistics as favourites, set
statistic alerts) please log in with your personal account.
If you are an admin, please authenticate by logging in again.
Learn more about how Statista can support your business.
EIA. (December 20, 2024). Average expenses for the operation of hydroelectric power plants run by major U.S. investor-owned electric utilities from 1998 to 2023 (in mills per kilowatt-hour) [Graph]. In Statista. Retrieved May 08, 2025, from https://www.statista.com/statistics/195828/us-hydroelectric-power-plant-operating-expense-since-1998/
EIA. "Average expenses for the operation of hydroelectric power plants run by major U.S. investor-owned electric utilities from 1998 to 2023 (in mills per kilowatt-hour)." Chart. December 20, 2024. Statista. Accessed May 08, 2025. https://www.statista.com/statistics/195828/us-hydroelectric-power-plant-operating-expense-since-1998/
EIA. (2024). Average expenses for the operation of hydroelectric power plants run by major U.S. investor-owned electric utilities from 1998 to 2023 (in mills per kilowatt-hour). Statista. Statista Inc.. Accessed: May 08, 2025. https://www.statista.com/statistics/195828/us-hydroelectric-power-plant-operating-expense-since-1998/
EIA. "Average Expenses for The Operation of Hydroelectric Power Plants Run by Major U.S. Investor-owned Electric Utilities from 1998 to 2023 (in Mills per Kilowatt-hour)." Statista, Statista Inc., 20 Dec 2024, https://www.statista.com/statistics/195828/us-hydroelectric-power-plant-operating-expense-since-1998/
EIA, Average expenses for the operation of hydroelectric power plants run by major U.S. investor-owned electric utilities from 1998 to 2023 (in mills per kilowatt-hour) Statista, https://www.statista.com/statistics/195828/us-hydroelectric-power-plant-operating-expense-since-1998/ (last visited May 08, 2025)
Average expenses for the operation of hydroelectric power plants run by major U.S. investor-owned electric utilities from 1998 to 2023 (in mills per kilowatt-hour) [Graph], EIA, December 20, 2024. [Online]. Available: https://www.statista.com/statistics/195828/us-hydroelectric-power-plant-operating-expense-since-1998/
