In Guadalupe 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.

2 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.

EIA-860M names Guadalupe Blanco River Authority 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 TP 4 LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Guadalupe Blanco River Authority 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 "TP 4 LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is TP 4 still running?

EIA-860M files it as "Out of service and NOT expected to return to service in next calendar year" for 2026-07. Statuses change monthly, and this page follows the monthly release.

TP 4

TP 4 is a 2 MW hydroelectric power plant in Guadalupe County, Texas, operated by Guadalupe Blanco River Authority. EIA-860M lists 1 generating unit here, inside ERCOT. Its unit entered service in 1932.

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: 2.4 MW; 2.4 MW net summer
Generating units: 1
In service: 1932
EIA plant ID: 3586

Where it is

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County: Guadalupe County, Texas
Coordinates: 29.5481, -97.9996
Balancing authority: ERCO
Sector: Electric Utility

Units, technology and status

Operator of record: Guadalupe Blanco River Authority
Primary energy source: Hydro
Technologies: Conventional Hydroelectric
Status: Out of service and NOT expected to return to service in next calendar year

Every plant Guadalupe Blanco River Authority reports to EIA →

TP 4: FAQ

Where is TP 4?: In Guadalupe 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 TP 4?: 2 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns TP 4?: EIA-860M names Guadalupe Blanco River Authority 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 TP 4 LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Guadalupe Blanco River Authority 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 "TP 4 LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is TP 4 still running?: EIA-860M files it as "Out of service and NOT expected to return to service in next calendar year" for 2026-07. Statuses change monthly, and this page follows the monthly release.