GulfStar Power, LLC
Battery storage project in Wharton County, Texas. 300 MW of nameplate capacity across 1 generator, operated by GulfStar Power, LLC.
Also known as EIA plant 66871
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 300 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- June 2025First generator online
- Operator
- GulfStar Power, LLCEIA operator ID 65805
- Grid
- ERCOTBalancing authority ERCO
- Price nodes
- 1 ERCOT nodeResource nodes with prices
- Location
- Wharton County, TX29.1913, −95.9675
- EIA plant ID
- 66871EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power GulfStar Power produces
Free · EIA-923Net generation, 2025
541 GWh
540,836 MWh, final. 7 of 12 months reported
Battery discharge, 2025
59.6 GWh
Charge 75.4 GWh
January to July 2026
182 GWh
Provisional. 2 of 7 months reported
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | Not reported | Not reported | 0 of 12 |
| 2017 | Not reported | Not reported | 0 of 12 |
| 2018 | Not reported | Not reported | 0 of 12 |
| 2019 | Not reported | Not reported | 0 of 12 |
| 2020 | Not reported | Not reported | 0 of 12 |
| 2021 | Not reported | Not reported | 0 of 12 |
| 2022 | Not reported | Not reported | 0 of 12 |
| 2023 | Not reported | Not reported | 0 of 12 |
| 2024 | Not reported | Not reported | 0 of 12 |
| 2025 | 540,836 | Not reported | 7 of 12 |
| 2026 (provisional, partial year) | 181,732 | Not reported | 2 of 7 |
* 2026 covers January to July and is provisional. Battery plants can report negative net generation, when charging uses more energy than they discharge.
Power prices and basis
Free account · ERCOTEmissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| BESS | Batteries | 300.0 | June 2025 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists GulfStar Power, LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Questions about GulfStar Power
How much power does GulfStar Power, LLC produce?
GulfStar Power, LLC reported 540,836 MWh (541 GWh) of net generation in 2025. From January to July 2026 it reported 182 GWh, which is provisional. 7 of 12 months were reported for 2025.
Where is GulfStar Power, LLC?
GulfStar Power, LLC is in Wharton County, Texas, at 29.1913, −95.9675. It is in the Electric Reliability Council of Texas, Inc. balancing area (ERCO).
Who operates GulfStar Power, LLC?
EIA-860M for August 2026 lists GulfStar Power, LLC as the operator (EIA operator ID 65805). The operator is not always the owner.
When did GulfStar Power, LLC start operating?
Its first generator began operating in June 2025, according to EIA-860M.
Does InfraMap have power prices for GulfStar Power, LLC?
Yes. InfraMap has ERCOT day-ahead and real-time prices at 1 price node linked to GulfStar Power, LLC, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- ERCOT day-ahead and real-time prices; node and hub assignments as of 2026-10-05
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page