Thad Hill Energy Center
CalpineBosque County
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.
Mapped infrastructure geometry associated with this asset.
Formerly Calpine Bosque Energy Center, LLC
2000 · 2001 · 2010
ERCOT current public listing
O1886 · NSR 40620
EIA plant 55172 · Inventory for Sep 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| GT-1 | Natural Gas Fired Combined Cycle | Operating | 154 | Unknown |
| GT-2 | Natural Gas Fired Combined Cycle | Operating | 154 | Unknown |
| GT-3 | Natural Gas Fired Combined Cycle | Operating | 154 | Unknown |
| ST-4 | Natural Gas Fired Combined Cycle | Operating | 95 | Unknown |
Similar plants ranked by technology, capacity, and distance.
Current 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 CT | Jul 2000 | Operating |
| GT-2 | 154 MW 158 MW summer | Natural Gas Fired Combined Cycle CT | Jul 2000 | Operating |
| GT-3 | 154 MW 157 MW summer | Natural Gas Fired Combined Cycle CT | Jun 2001 | Operating |
| ST-4 | 95 MW 82 MW summer | Natural Gas Fired Combined Cycle CA | Jun 2001 | Operating |
| ST-5 | 250 MW |
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 July 2000 operating months for combustion turbines GT1 and GT2.
| ST-5 | Natural Gas Fired Combined Cycle | Operating | 250 | Unknown |
|---|
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
6 ERCOT market resources · Combined-cycle gas
Capacity factor is average output vs. this plant's observed peak.
Observed ERCOT settlement prices at BOSQUESW_CC1 over 365 days (2025-10-27 to 2026-10-26). This plant is also crosswalked to BOSQUESW_CC2, BOSQ_BSQSU_5, BOSQ_BSQS_12, BOSQ_BSQS_34; 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.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
EIA reports June 2001 operating months for combustion turbine GT3 and steam turbine ST4.
EIA reports January 2010 as the operating month for 250 MW steam turbine ST5.
A Texas PUC filing records the name change from Calpine Bosque Energy Center to Thad Hill Energy Center effective November 1, 2024.
Calpine and CyrusOne announced 190 MW of power, grid-connection, and land service for the adjacent DFW10 data center.
CyrusOne announced a second 210 MW phase, bringing total announced service for adjacent DFW10 to 400 MW.
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.
Thad Hill Energy Center reports 807 MW natural gas of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.
Thad Hill Energy Center is a Natural Gas Fired Combined Cycle facility in Bosque County, TX, participating in the ERCOT market.
Thad Hill Energy Center is in Bosque County, TX, inside the ERCOT balancing area.
Thad Hill Energy Center is operated by Thad Hill Energy Center, LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Thad Hill Energy Center reported 3,966.9 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.
By capacity, Thad Hill Energy Center ranks #142 of 540 operating plants of the same technology nationally. It ranks #23 of 68 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.
