Clarence Cannon — Plant Summary
- EIA Plant ID
- 6140
- Capacity
- 58 MW
- Primary Fuel
- Hydro
- Technology
- Conventional Hydroelectric, Hydroelectric Pumped Storage
- Status
- Operating
- Location
- Ralls, MO
- Operating Since
- 1984
- Generators
- 2
- Operator
- USCE-St Louis District
- Parent Company
- —
- Annual Generation
- 95,698 MWh
- Capacity Factor
- 18.9%
- Balancing Authority
- Associated Electric Cooperative, Inc.
- ISO/RTO
- —
- NERC Region
- SERC
Clarence Cannon
OperatingHydroHybrid
Ranked #5 of 8 Hydro plants in MO#276 of 1454 nationally
58 MW Conventional Hydroelectric (27 MW) + Hydroelectric Pumped Storage (31 MW) operating in Ralls, MO — Associated Electric Cooperative, Inc.
EIAGEMWD
58 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Conventional Hydroelectric + Hydroelectric Pumped Storage
1984
Operating Since
Location
Coordinates
39.5248, -91.6440
County
Ralls, MO
Nearby Plants
- Blue Jay Road Solar, LLCSolar60 MW · 18.7 km
- Huck Finn Renewable Energy CenterSolar200 MW · 24.4 km
- Audrain Generating StationNatural Gas814.4 MW · 25.7 km
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 | USCE-St Louis District | US Army Corps of Engineers - Louis District | — |
| Owner(s) | USCE-St Louis District | US Army Corps of Engineers - Louis District | — |
| Status | Operating | operating | — |
Ownership Chain
GEM identifies the owner as US Army Corps of Engineers - Louis District
This entity is not yet in the GEM ownership database — chain unavailable.
About
The Clarence Cannon plant is a 58 MW hybrid hydroelectric facility located in Ralls County, Missouri. It began operating in 1984 and is owned and operated by USCE-St Louis District. The plant utilizes water as its primary fuel source and incorporates both conventional hydroelectric and pumped storage technologies. It consists of two generators.
Clarence Cannon's latest annual generation was 95,698 MWh, resulting in a capacity factor of 18.9%. The plant operates within the Associated Electric Cooperative, Inc. balancing authority and the SERC NERC region. It is ranked as the 5th largest of 8 hydroelectric plants in Missouri, and 280th out of 1464 nationally.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
SERC
Balancing Authority
Associated Electric Cooperative, Inc.
Grid Voltage
69 kV
Regulatory Status
RE
Entity Type
Federal
Sector
Electric Utility
Generation
1.1K MWh
Net Discharge
95.7K MWh
Annual Net Energy
18.9%
Capacity Factor
Jan 2023 – Dec 2025
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
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