52 MW Hydro operating in Jasper, TX — Midcontinent Independent Transmission System Operator, Inc..
52 MW
Nameplate Capacity
2
Generators
units
Conventional Hydroelectric
Technology
1965
Operating Since
Coordinates
31.0609, -94.1062
County
Jasper, TX
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-Fort Worth District | US Army Corps of Engineers - Fort Worth District | — |
| Owner(s) | USACE-Fort Worth District | US Army Corps of Engineers - Fort Worth District | — |
| Status | Operating | operating | — |
GEM identifies the owner as US Army Corps of Engineers - Fort Worth District
This entity is not yet in the GEM ownership database — chain unavailable.
Sam Rayburn Dam is a 52 MW hydroelectric power plant located in Jasper County, Texas. The plant began operating in 1965 and is owned and operated by the USACE-Fort Worth District. It utilizes conventional hydroelectric technology with water (WAT) as its primary fuel source. The facility consists of two generators.
In the most recent year with available data, Sam Rayburn Dam generated 198,518 MWh of electricity, achieving a capacity factor of 43.5%. The plant operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the TRE NERC region. Sam Rayburn Dam is ranked as the 7th largest hydroelectric plant out of 24 in Texas, and 297th out of 1464 nationally.
Generated from EIA, GEM, and public data sources
NERC Region
TRE
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc..
Grid Voltage
138 kV
Regulatory Status
RE
Entity Type
Federal
Sector
Electric Utility
4.6K MWh
Latest Month
198.5K MWh
Annual Generation
43.5%
Capacity Factor
No financial data available for this plant.
Point of Interconnection
Nearest Substation
Sam Dam Substation · 138 kV
Substation Distance
0 km
Operator
Entergy
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
EES.SAM_DAM_12
Pricing Hub
TEXAS.HUB
Location Type
Generation Node
Node Source
Curated node match
Last updated 2026-03-26
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