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Hydro Power in South Dakota
Net generation and share of the state power mix, 2025 — U.S. Energy Information Administration.
Hydro generation (2025)
4,868 thousand MWh
Share of state power mix
21.94%
National rank (hydro output)
#10
U.S. average share
5.58%
Hydro share of South Dakota's power mix over time
2001: 46.37% → 2025: 21.94%
Year by year
| Year | Hydro (thousand MWh) | Share of state mix |
|---|---|---|
| 2025 | 4,868 | 21.94% |
| 2024 | 4,601 | 22.04% |
| 2023 | 4,296 | 24.64% |
| 2022 | 4,259 | 23.79% |
| 2021 | 4,983 | 28.76% |
| 2020 | 5,831 | 41.22% |
| 2019 | 7,915 | 54.56% |
| 2018 | 6,266 | 49.67% |
| 2017 | 5,256 | 48.06% |
| 2016 | 4,806 | 41.7% |
| 2015 | 4,850 | 50.35% |
| 2014 | 5,498 | 50.01% |
| 2013 | 4,063 | 40.19% |
| 2012 | 5,981 | 52.13% |
| 2011 | 6,608 | 55.07% |
| 2010 | 5,239 | 52.13% |
| 2009 | 4,432 | 54.08% |
| 2008 | 2,993 | 42.26% |
| 2007 | 2,917 | 47.54% |
| 2006 | 3,397 | 47.63% |
| 2005 | 3,075 | 47.15% |
| 2004 | 3,598 | 47.9% |
| 2003 | 4,276 | 53.83% |
| 2002 | 4,354 | 56.38% |
| 2001 | 3,432 | 46.37% |
Source: U.S. Energy Information Administration, electric power operational data (net generation by state and energy source). "Share of state mix" is this fuel's net generation as a percentage of all in-state net generation.