Thad Hill Energy Center
Calpine · Bosque County · ERCOT
Thad Hill Energy Center is an operating five-generator natural-gas combined-cycle facility in Bosque County, Texas, formerly named Calpine Bosque Energy Center. EIA's May 2026 inventory reports 807 MW nameplate, 763 MW net summer, and 801 MW net winter capability across three combustion turbines and two steam turbines. The units began operating in 2000, 2001, and 2010. A separate CyrusOne data center adjacent to the plant is under construction; the operating power plant is not.
Overview
Key fields
- Net summer capacity
- 763 MW
EIA May 2026 · five generators
- Nameplate capacity
- 807 MW
3 combustion turbines · 2 steam turbines
- Net winter capacity
- 801 MW
EIA May 2026
- 2025 generation
- 3.80 TWh
EIA 923 · May 2025-April 2026
- Registry anchor
- Plant 55172
Thad Hill Energy Center, LLC
Resource stack
- 6 resources
BOSQUESW_CC1_1 · BOSQUESW_CC1_2
Profile
- Grid role
- Operating combined-cycle generation in ERCOT with power service committed to an adjacent data center.
- Operating configuration
- Three combustion turbines and two steam turbines; 807 MW total nameplate.
- Market mapping
- ERCOT's current public price list includes BOSQUESW_CC1 and BOSQUESW_CC2.
- Adjacent development
- Calpine and CyrusOne announced 400 MW of powered-land service in two phases for the adjacent DFW10 data center.
Structured profile
- Owner / operator
- Thad Hill Energy Center, LLC
Formerly Calpine Bosque Energy Center, LLC
- Operating generators
- 5
2000 · 2001 · 2010
- Settlement points
- BOSQUESW_CC1 / CC2
ERCOT current public listing
- TCEQ entity
- RN100226232
O1886 · NSR 40620
Units and generators
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| GT-1 | 154 MW 158 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Jul 2000 | Operating |
| GT-2 | 154 MW 158 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Jul 2000 | Operating |
| GT-3 | 154 MW 157 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Jun 2001 | Operating |
| ST-4 | 95 MW 82 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CA | Jun 2001 | Operating |
| ST-5 | 250 MW 208 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CA | Jan 2010 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 807 MW
- National rank
- #141
- TX rank
- #23
Monthly generation
Download CSVMonthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
ERCOT disclosed dispatch
6 ERCOT market resources · Combined-cycle gas
Generation
3 mo through May 22, 2026Capacity factor is average output vs. this plant's observed peak.
Output by hourlocal time · 90 days through May 22, 2026
Latest disclosed outputhourly · 2 weeks ending May 22, 2026
Generation from ERCOT's 60-Day SCED Disclosure (≈60-day lag), summed over this site's market resources.
Grid and market context
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Market registration
ERCOT public disclosuresOperating context
ERCOT market recordsNearby substations
HIFLD infrastructure inventoryCommercial, land, and environmental record
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Land and environmental record
Related parties and identifiers
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
Relationship graph
Drag organizations to explore the network. Select a node to pin its details and available page link.
Parties and identifiers
| Relationship | Entity | Basis |
|---|---|---|
| Owner / operator | Owner / operator for Thad Hill Energy Center | |
| Market resources | BOSQUESW_CC1_1, BOSQUESW_CC1_2, BOSQUESW_CC2_1, BOSQUESW_CC2_2, BOSQUESW_CC2_3 | 6 linked ERCOT resources. |
| Grid selection | plant:plant-55172 | Canonical asset page /ercot/assets/plant/thad-hill-energy-center. |
Reporting portfolio
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
Timeline and sources
Project milestones and public references behind the asset profile.
Project timeline
- First current generators entered serviceEIA May 202...
EIA reports July 2000 operating months for combustion turbines GT1 and GT2.
- GT3 and ST4 entered serviceEIA May 202...
EIA reports June 2001 operating months for combustion turbine GT3 and steam turbine ST4.
- ST5 Entered ServiceEIA May 202...
EIA reports January 2010 as the operating month for 250 MW steam turbine ST5.
- Facility Name ChangedThad Hill f...
A Texas PUC filing records the name change from Calpine Bosque Energy Center to Thad Hill Energy Center effective November 1, 2024.
- First adjacent data-center service phase announcedCalpine and...
Calpine and CyrusOne announced 190 MW of power, grid-connection, and land service for the adjacent DFW10 data center.
- Second adjacent data-center service phase announcedCyrusOne po...
CyrusOne announced a second 210 MW phase, bringing total announced service for adjacent DFW10 to 400 MW.
- Latest disclosed generation interval
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.
Sources
Related assets
Similar plants ranked by technology, capacity, and distance.
Wolf Hollow I LP
Natural Gas · 756 MW
Hood County
Wise County Power LLC
Natural Gas · 735 MW
Wise County
Wolf Hollow II
Natural Gas · 1,103.4 MW
Hood County
Tenaska Frontier Generation Station
Natural Gas · 860 MW
Grimes County