Denison — Plant Summary
- EIA Plant ID
- 6416
- Capacity
- 104.3 MW
- Primary Fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Status
- Operating
- Location
- Grayson, TX
- Operating Since
- 1945
- Generators
- 2
- Operator
- USCE-Tulsa District
- Parent Company
- —
- Annual Generation
- 191,900 MWh
- Capacity Factor
- 21.0%
- Balancing Authority
- Electric Reliability Council of Texas, Inc.
- ISO/RTO
- ERCOT
- NERC Region
- TRE
Denison
OperatingHydro
Ranked #2 of 24 Hydro plants in TX#179 of 1454 nationally
104.3 MW Hydro operating in Grayson, TX — Electric Reliability Council of Texas, Inc.
EIAGEMWD
104.3 MW
Nameplate Capacity
2
Generators
units
Conventional Hydroelectric
Technology
1945
Operating Since
Location
Coordinates
33.8181, -96.5692
County
Grayson, TX
Nearby Plants
- WAL947Natural Gas1.2 MW · 16.6 km
- Choctaw Nation Solar FarmSolar5 MW · 21.0 km
- West Moore Solar IISolar5 MW · 23.0 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-Tulsa District | US Army Corps of Engineers - Tulsa District | — |
| Owner(s) | USCE-Tulsa District | US Army Corps of Engineers - Tulsa District [100%] | — |
| Status | Operating | operating | — |
Ownership Chain
GEM identifies the owner as US Army Corps of Engineers - Tulsa District [100%]
This entity is not yet in the GEM ownership database — chain unavailable.
About
The Denison hydroelectric plant is located in Grayson County, Texas. The plant has a total capacity of 104.3 MW across two conventional hydroelectric generators. It began operating in 1945 and is currently operated by USCE-Tulsa District. The primary fuel source for the plant is water (WAT).
Denison operates within the Electric Reliability Council of Texas (ERCOT) balancing authority and the TRE NERC region. In the most recent year with available data, the plant generated 191,900 MWh, achieving a capacity factor of 21.0%. Denison is ranked as the second-largest hydroelectric plant in Texas, and 179th nationally out of 194 hydroelectric plants.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
TRE
Balancing Authority
Electric Reliability Council of Texas, Inc.
Grid Voltage
138 kV
Regulatory Status
RE
Entity Type
Federal
Sector
Electric Utility
Generation
12.5K MWh
Latest Month
191.9K MWh
Annual Generation
21.0%
Capacity Factor
Jan 2022 – Dec 2024
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidencePoint of Interconnection
Nearest Substation
Denison Dam Substation · 138 kV
Substation Distance
0 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ERCOT
LMP Node
DENISON_G1_2
Pricing Hub
HB_NORTH
Secondary Zone
LZ_NORTH
Location Type
Resource Node
Node Source
Curated node match
News & Articles (10)Beta
Industry·corporate
Denison cuts ribbon on $50M raw water pump station
DENISON, Texas — The city of Denison on Thursday unveiled a new raw water pump station, replacing a facility that could pump only about 7...
Denison (other)
KXII·2 days ago
Grid·outage
Sherman and Denison prepare for winter storms with water plant back up generators after 2021 outages
GRAYSON COUNTY, Texas (KXII) - Sherman and Denison have installed backup generators at their water treatment facilities following a 2021...
Sherman (other)Denison (other)
KXII·4 weeks ago
Hazards·extreme cold
Five Years After Winter Storm Uri, a Texas Co-op Shares Its Lessons Learned
Rayburn Electric Cooperative faced three years of power costs in five days during the 2021 storm. The experience transformed the...
Rayburn Electric Cooperative (other)
POWER Magazine·4 weeks ago
Industry·corporate
Beverly Ann Clountz Obituary (2026) - Plano, TX - Fisher Funeral Home - Denison
Beverly Clountz Obituary Beverly Ann Clountz, beloved mother, grandmother, and aunt, passed away on January 7, 2026, at the age of 85.
Legacy obituary·2 months ago
Last updated 2026-03-14
View all 10 articles