Data Center Atlas
CyrusOne Bosque County data center campus (Thad Hill)
Under construction
United States · 1 project · Last reported
Summary
Hyperscale data center campus that CyrusOne is building next to Calpine's Thad Hill Energy Center in Bosque County, Texas, under a powered land agreement covering power, grid connection and land. Calpine announced a 190 MW first phase in July 2025, when the project was reported as a USD 1.2 billion investment, and added 210 MW in November 2025 for 400 MW in total. Calpine then said the facility was under construction for operation by the fourth quarter of 2026. CyrusOne's campus page now lists five buildings in two phases, with phase 1 due by the third quarter of 2027 and all phases by the fourth quarter of 2027.
Source record as of 2025-11-03 · Details and sources
Location
The interactive map needs JavaScript. Display anchor: 31.90000, -97.63000 (Point locator, WGS 84).
View location: OpenStreetMap · Google Maps · Bing aerial · Copernicus Browser
County or district reference only; the facility position is not established.
Projects (1)
CyrusOne Bosque County data center campus (Thad Hill)
Under construction last observed as of · Reported status
Location: Bosque County, Texas, US. Coordinates are the Wikipedia point for Bosque County (s5). Sources place the campus next to the Thad Hill Energy Center in Bosque County but give no address; the site was not geocoded. American Public Power Association; Calpine; CyrusOne; Wikipedia
Capacity, investment and other figures
| Measure | Value | Scope | As of | Notes | Sources |
|---|---|---|---|---|---|
| Power capacity | 400 MW | Contracted · Campus · Unspecified | 2025-11-03 | Combined power under the two Calpine agreements. | Calpine; CyrusOne |
| Power capacity | 190 MW | Contracted · Phase · Unspecified · Phase 1 | 2025-07-31 | American Public Power Association; Calpine | |
| Power capacity | 210 MW | Contracted · Phase · Unspecified · Phase 2 | 2025-11-03 | Calpine | |
| Investment | 1,200,000,000 USD | Reported · Campus | 2025-07-31 | Investment reported in July 2025, when only the 190 MW first phase had been announced; no updated figure was found after the phase 2 agreement. | American Public Power Association |
| Floor area | more than 190,000 sq_ft | Under construction · Phase · Phase 1 | 2025-07-31 | American Public Power Association | |
| Buildings | 5 count | Planned · Campus | 2026-10-09 | Two buildings in phase 1 and three in phase 2, per CyrusOne's undated campus page. | CyrusOne |
Companies and organizations
| Name | Role | Notes | Sources |
|---|---|---|---|
| CyrusOne | Developer | American Public Power Association; Calpine; CyrusOne | |
| CyrusOne | Operator | Described as a data center developer and operator; backed by KKR and Global Infrastructure Partners. | American Public Power Association; Calpine |
| Calpine | Power supplier | Supplies power under the powered land agreement at its Thad Hill Energy Center; by February 2026 Calpine was a business unit of Constellation. | American Public Power Association; Calpine; CyrusOne; CyrusOne |
Timeline
| Date | Event | Actual or planned | Notes | Sources |
|---|---|---|---|---|
| 2025-07-30 | Announced | Actual | Calpine announced the 190 MW agreement; the campus was already under construction. | American Public Power Association |
| 2025-11-03 | Expansion announced | Actual | Phase 2 agreement for another 210 MW. | Calpine |
| 2026-Q4 | First operational | Planned | Target given by Calpine in 2025. | American Public Power Association; Calpine |
| 2027-Q3 | Other | Planned | Later target for completing phase 1 on CyrusOne's campus page. | CyrusOne |
| 2027-Q4 | Fully operational | Planned | CyrusOne |
Power supply
| Type | Description | Sources |
|---|---|---|
| Grid | Powered land agreement with Calpine at its Thad Hill Energy Center, covering power supply, grid connection and land; CyrusOne says it will pay for required transmission upgrades, and the campus is designed to respond during ERCOT grid emergencies. | American Public Power Association; Calpine; CyrusOne |
Status conflict: Calpine said in July and November 2025 that the facility was under construction, but CyrusOne's undated campus page (it mentions events up to June 2026) labels it in development, refers to a county review process and describes some pre-construction steps as still ahead; its delivery dates are also later than Calpine's target. Status stays at under construction from Calpine's latest statement; no 2026 source confirms any building operating. The page says operating water comes from an on-site well permitted by the Middle Trinity Groundwater Conservation District, about 250,000 gallons per building a year. CyrusOne's Freestone Energy Center campus is a separate record.
Sources for these details
- Calpine Unveils 190-MW Agreement to Serve New Texas Data Center — American Public Power Association; 2025-07-31
- Calpine and CyrusOne Announce Phase 2 of Powered Land Agreement to Support Hyperscale Data Center at Thad Hill Energy Center in Texas — Calpine; 2025-11-03 · Archived source
- Bosque County Data Center — CyrusOne; publication date not stated
- Constellation and CyrusOne Announce Agreement to Support New Data Center Facility at Freestone Energy Center in Texas — CyrusOne; 2026-02-09
- Bosque County, Texas — Wikipedia; publication date not stated · Archived source
- Companies
- Developer: CyrusOne (unknown scope) evidence
- Developer: CyrusOne (unknown scope) evidence
- Developer: CyrusOne (unknown scope) evidence
- Operator: CyrusOne (unknown scope) evidence
- Operator: CyrusOne (unknown scope) evidence
- Power Supplier: Calpine (unknown scope) evidence
- Power Supplier: Calpine (unknown scope) evidence
- Power Supplier: Calpine (unknown scope) evidence
- Power Supplier: Calpine (unknown scope) evidence
Source and location review
- Status source
- Calpine and CyrusOne Announce Phase 2 of Powered Land Agreement to Support Hyperscale Data Center at Thad Hill Energy Center in Texas evidence row
Calpine · published 2025-11-03 · Company disclosure - Locator
- County or district reference only · Compiled location reference · admin2 evidence
- Source checks
Not reviewed against imagery not_
reviewed
No imagery review is recorded for this project. Its status rests only on the dated authoritative source. · no independent imagery verificationStatus age at review: 358 days before the data update on 2026-10-27
Location details
- Coordinates
- 31.90000, -97.63000
- Geometry licence
- source-terms-not-recorded
- Use scope
- County or district reference only
- Scope class
- admin2
- Authority
- Compiled location reference
- Source entity
- Project
- Method
- imported_reference_point
- Derivation
- imported_reference_point
- Precision scope
- Coordinates are the Wikipedia point for Bosque County (s5). Sources place the campus next to the Thad Hill Energy Center in Bosque County but give no address; the site was not geocoded.
- Horizontal uncertainty
Not reported
The source record provides no measured horizontal uncertainty; original coordinate precision and note are preserved.
- Geometry evidence
- 5d8d2d25
A locator places the site on the map. It is not a building footprint, a construction extent or a surveyed boundary unless the use scope is an official boundary, and even then it is a parcel or permit boundary.
Evidence
Sources are linked, not redistributed; each keeps its own terms. An archived copy is a lookup for the Wayback Machine capture nearest the retrieval date and may be unavailable or differ from what was reviewed. Each hash states what it covers; imported factual records are not publisher-page captures.
| Title | Publisher | Roles | Published | Retrieved | Licence | Attribution | Content hash (SHA-256) |
|---|---|---|---|---|---|---|---|
| Bosque County Data Center Archived copy | CyrusOne Company disclosure | Imported: Geometry, Imported: Record, Metric: Buildings, Milestone: Fully Operational, Milestone: Other, Power Source: Grid, Role: Developer, Role: Power Supplier | not stated | source-terms-not-recorded | CyrusOne | e391d51c500143affc6ec230f4a9738c071da3822d6450d857bab9434e80f9b1Factual source record; not the publisher page | |
| Bosque County, Texas Archived copy | Wikipedia Other | Imported: Geometry, Imported: Record | not stated | source-terms-not-recorded | Wikipedia | 3d35812efdf6bf0b0c532b77c730e17369daf46795b4307321878c1e6e6f4a5dFactual source record; not the publisher page | |
| Calpine and CyrusOne Announce Phase 2 of Powered Land Agreement to Support Hyperscale Data Center at Thad Hill Energy Center in Texas Archived copy | Calpine Company disclosure | Imported: Geometry, Imported: Record, Imported: Status, Metric: Power Capacity, Milestone: Expansion Announced, Milestone: First Operational, Power Source: Grid, Role: Developer, Operator claim, Role: Power Supplier | source-terms-not-recorded | Calpine | 59d78410f5b913a6ac2c4c22e820b70e05de7037ceb3915bacd07f1f30e43860Factual source record; not the publisher page | ||
| Calpine Unveils 190-MW Agreement to Serve New Texas Data Center Archived copy | American Public Power Association Trade publication | Imported: Geometry, Imported: Record, Metric: Floor Area, Metric: Investment, Metric: Power Capacity, Milestone: Announced, Milestone: First Operational, Power Source: Grid, Role: Developer, Operator claim, Role: Power Supplier | source-terms-not-recorded | American Public Power Association | ae438b44408c84fae1c3c87390ef2865541c973d820ea474e94df5cf5535c16cFactual source record; not the publisher page | ||
| Constellation and CyrusOne Announce Agreement to Support New Data Center Facility at Freestone Energy Center in Texas Archived copy | CyrusOne Company disclosure | Imported: Record, Metric: Power Capacity, Role: Power Supplier | source-terms-not-recorded | CyrusOne | d8be7e783fd6e0bbff3e46a1555abc5f49a55f97773ad8f03b1aa021947d375dFactual source record; not the publisher page |
Cite this site
Kyars, K. (2026). CyrusOne Bosque County data center campus (Thad Hill) [site vcc-site-119a6992bb6bb25cc011]. In Data Center Atlas (2026-10-27) [Data set]. https://kiankyars.github.io/datacenter-atlas/sites/vcc-site-119a6992bb6bb25cc011/
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