Lake Hubbard Steam Electric Station is a two-unit natural-gas steam station in Sunnyvale, Dallas County, Texas. EIA's May 2026 inventory reports 927.5 MW nameplate and 915 MW net summer and winter capability. ERCOT's September 2026 resource outlook separately lists LHSES_UNIT1 and LHSES_UNIT2A at 928 MW installed and 915 MW seasonal capability in the North zone.
EIA May 2026 · two operating units
396.5 MW · 531 MW
September 2026 MORA
LHSES_UNIT1 · LHSES_UNIT2A
Luminant Generation Company LLC · ERCOT
LHSES_UNIT1 · LHSES_UNIT2A
June 1970 · November 1973
GAS-ST resources
Federal Operating Permit O50
Similar plants ranked by technology, capacity, and distance.
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 1 | 396.5 MW 392 MW summer | Natural Gas Steam Turbine Natural Gas · ST | Jun 1970 | Operating |
| 2 | 531 MW 523 MW summer | Natural Gas Steam Turbine Natural Gas · ST | Nov 1973 | Operating |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
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Project milestones and public references behind the asset profile.
EIA reports June 1970 for the 396.5 MW nameplate steam unit.
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
2 ERCOT market resources · Gas steam
Capacity factor is average output vs. this plant's observed peak.
Observed ERCOT settlement prices at LHSES_UNIT1 over 363 days (2025-09-11 to 2026-09-10). This plant is also crosswalked to LHSES_UNIT2; the point with the deepest price history is shown.
The TB2 figure is a price benchmark, not revenue: it values one perfect-foresight cycle per day between the 2 cheapest and 2 dearest hours of each day, gross of round-trip losses, and excludes ancillary services and any physical dispatch constraint. It describes what this node’s price shape was worth over the window — it is not this asset’s realized capture, and no dispatch is assumed or modelled.
| Largest reported plants | Capacity | State | |
|---|---|---|---|
| Comanche Peak | 2,430 MW | TX | |
| Martin Lake | 2,379.6 MW | TX | |
| Oak Grove (TX) | 1,795.4 MW | TX | |
| Lake HubbardCurrent | 927.5 MW | TX | |
| Stryker Creek | 713.4 MW | TX | |
| Graham | 634.7 MW | TX | |
| DeCordova Steam Electric Station | 626.7 MW | TX | |
| Morgan Creek | 536.4 MW | TX |
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
View full reporting portfolioEIA reports November 1973 for the 531 MW nameplate steam unit.
TCEQ's statement of basis identifies Luminant as applicant and Lake Hubbard as the exact permitted site.
The 2024 compliance-history report records an agreed order effective February 25, 2025.
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Lake Hubbard has a reported capacity of 927.5 MW. Source: EIA Form 860.
Lake Hubbard is a Natural Gas Steam Turbine facility in Dallas County, TX, participating in the ERCOT market.
Lake Hubbard is in Dallas County, TX, inside the ERCOT balancing area.
Lake Hubbard is operated by Luminant Generation Company LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Lake Hubbard reported 1,693.8 GWh over the twelve months to 2024-12. Figures are net generation as filed to EIA-923.
Lake Hubbard settles at LHSES_UNIT1.
By capacity, Lake Hubbard ranks #30 of 257 operating plants of the same technology nationally. It ranks #6 of 32 in TX.
Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.
