Where is Clarence Cannon?

In Ralls County, Missouri (MO). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.

How big is Clarence Cannon?

58 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.

Who owns Clarence Cannon?

EIA-860M names USCE-St Louis District as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.

Is this the same as Clarence Cannon LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — USCE-St Louis District here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Clarence Cannon LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Clarence Cannon still running?

EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.

Clarence Cannon

Clarence Cannon is a 58 MW pumped storage hydro plant in Ralls County, Missouri, operated by USCE-St Louis District. EIA-860M lists 2 generating units here. Its units entered service in 1984.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Nameplate capacity: 58 MW; 58 MW net summer
Generating units: 2
In service: 1984
EIA plant ID: 6140

Where it is

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County: Ralls County, Missouri
Coordinates: 39.5248, -91.644
Balancing authority: AECI
Sector: Electric Utility

Units, technology and status

Operator of record: USCE-St Louis District
Primary energy source: Pumped storage
Technologies: Conventional Hydroelectric, Hydroelectric Pumped Storage
Status: Operating

This site runs on more than one energy source. EIA-860M capacity splits: Pumped storage 31 MW, Hydro 27 MW. It is filed here under Pumped storage, the source with the most capacity.

Every plant USCE-St Louis District reports to EIA →

Clarence Cannon: FAQ

Where is Clarence Cannon?: In Ralls County, Missouri (MO). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
How big is Clarence Cannon?: 58 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
Who owns Clarence Cannon?: EIA-860M names USCE-St Louis District as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
Is this the same as Clarence Cannon LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — USCE-St Louis District here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Clarence Cannon LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Clarence Cannon still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.