Denison
Denison is a 104 MW hydroelectric power plant in Grayson County, Texas, operated by USCE-Tulsa District. EIA-860M lists 2 generating units here, inside ERCOT. Its units entered service between 1945 and 1949.
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
- 104.3 MW
- 100 MW net summer
- Generating units
- 2
- In service
- 1945–1949
- EIA plant ID
- 6416
Where it is
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- County
- Grayson County, Texas
- Coordinates
- 33.8181, -96.5692
- Balancing authority
- ERCO
- Sector
- Electric Utility
Units, technology and status
- Operator of record
- USCE-Tulsa District
- Primary energy source
- Hydro
- Technologies
- Conventional Hydroelectric
- Status
- Operating
Denison: FAQ
- Where is Denison?
- In Grayson County, Texas (TX). 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 Denison?
- 104 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
- Who owns Denison?
- EIA-860M names USCE-Tulsa 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 Denison LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — USCE-Tulsa 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 "Denison LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Denison still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.