Fort Randall — Plant Summary
- EIA Plant ID
- 3373
- Capacity
- 320 MW
- Primary Fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Status
- Operating
- Location
- Charles Mix, SD
- Operating Since
- 1954
- Generators
- 8
- Operator
- USACE-Omaha
- Parent Company
- —
- Annual Generation
- 1,578,831 MWh
- Capacity Factor
- 56.1%
- Balancing Authority
- Southwest Power Pool
- ISO/RTO
- SPP
- NERC Region
- MRO
Fort Randall
OperatingHydro
Ranked #3 of 4 Hydro plants in SD#67 of 1454 nationally
320 MW Hydro operating in Charles Mix, SD — Southwest Power Pool
EIAGEMWD
320 MW
Nameplate Capacity
8
Generators
units
Conventional Hydroelectric
Technology
1954
Operating Since
Location
Coordinates
43.0653, -98.5539
County
Charles Mix, SD
Ownership & Operator
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | USACE-Omaha | US Army Corps of Engineers - Omaha District | — |
| Owner(s) | USACE-Omaha | US Army Corps of Engineers - Omaha District [100%] | — |
| Status | Operating | operating | — |
Ownership Chain
GEM identifies the owner as US Army Corps of Engineers - Omaha District [100%]
This entity is not yet in the GEM ownership database — chain unavailable.
About
Fort Randall Dam is a 2.03-mile-long (3 km) earthen dam which spans the Missouri River and impounds Lake Francis Case, the 11th-largest reservoir in the U.S. The dam joins Gregory and Charles Mix counties, South Dakota, a distance of 880 river miles (1,416 km) upstream of St. Louis, Missouri, where the river joins the Mississippi River. The dam and hydroelectric power plant were constructed by and are currently operated by the U.S. Army Corps of Engineers.
Read more on WikipediaFort Randall is a 320 MW hydroelectric power plant located in Charles Mix County, South Dakota. The plant began operating in 1954 and consists of 8 generators utilizing conventional hydroelectric technology. It is owned and operated by USACE-Omaha.
The plant's primary fuel source is water (WAT). Fort Randall operates within the Southwest Power Pool (SPP) balancing authority and the Midwest Reliability Organization (MRO) NERC region. In the most recent year with available data, the plant generated 1,578,831 MWh, achieving a capacity factor of 56.1%. Fort Randall is the 3rd largest power plant in South Dakota and ranks 67th nationally out of 194 plants.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
MRO
Balancing Authority
Southwest Power Pool
Grid Voltage
230 kV
Regulatory Status
RE
Entity Type
Federal
Sector
Electric Utility
Generation
62.3K MWh
Latest Month
1.6M MWh
Annual Generation
56.1%
Capacity Factor
Jan 2022 – Dec 2024
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidencePoint of Interconnection
Nearest Substation
Fort Randall Substation · 230 kV
Substation Distance
0 km
Operator
Western Area Power Administration
Coord Source
OSM spatial
Market Position
ISO/RTO Market
SPP
LMP Node
WAUE.FTRANDALL.1_2
Pricing Hub
SPP North Hub
Node Source
Curated node match
News & Articles (10)Beta
Hazards·wildfire
Red Flag Warning: Plymouth; Woodbury; Ida; Dixon; Dakota; Gregory; Charles Mix; Bon Homme; Yankton; Clay; Union
Red Flag Warning issued March 21 at 10:58AM CDT until March 21 at 10:00PM CDT by NWS Sioux Falls SD
Red Flag Warning (hazard)
NWS Sioux Falls SD·5 days ago
Deals·other
Contracts For Sep. 13, 2019
ARMY. Raytheon Co., McKinney, Texas, was awarded a $427,298,588 hybrid (cost-plus-fixed-fee and firm-fixed-price) contract for procurement of Common Sensor...
Raytheon Co. (other)
U.S. Department of War (.gov)·5 months ago
Industry·construction
Fort Randall Dam undergoes largest renovation since 1950s
PICKSTOWN, S.D. — The largest upgrade in the 72-year history of Fort Randall Dam is now underway, as crews begin replacing all eight of its...
Mitchell Republic·6 months ago
Industry·corporate
1 injured in crane tip at Fort Randall Dam
SIOUX FALLS, S.D. (KELO) — U.S. Army Corps of Engineers Omaha District officials are responding to an incident involving a contractor crane...
U.S. Army Corps of Engineers (other)
KELOLAND.com·8 months ago
Last updated 2026-03-21
View all 10 articles