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CyrusOne Freestone County campus (DFW20A–C)

CyrusOne; Calpine, a Constellation business (power, grid connectivity, site infrastructure)

Status
Under construction; registered (TDLR)
Developer / parties
CyrusOne; Calpine, a Constellation business (power, grid connectivity, site infrastructure)
Location
Fairfield (FM 488, next to the Freestone Energy Center), Freestone County
Size
Three one-story buildings DFW20A, B and C at 1356, 1354 and 1360 FM 488, 306,216 sq ft each (TDLR); 380 MW agreement plus exclusive 380 MW Phase 2 (Constellation)
Investment
$1.5B campus (DCD); TDLR est. $500M per building (as filed)
Last verified
2026-10-18

Milestones

Figures are attributed in parentheses to the outlet or company that reported them. Where sources disagree, we show both.

  1. Feb 9 2026 Calpine signed a 380 MW agreement with CyrusOne for a new data center adjacent to the Freestone Energy Center (Constellation)
  2. Jul 2026 TDLR filings for three buildings, construction under way on two, completion by end of Aug 2027 (DCD, Jul 31 2026)
  3. Jul 23 2026 DFW20A, DFW20B and DFW20C registered (owner CL FREESTONE 1 LLC; starts Mar 2, May 2 and Aug 2 2026; completions Mar 23, May 23 and Aug 23 2027; A and B Review Complete, C Project Registered) (TDLR, found Oct 18 2026)

Linked power & water

Power

  • Company claim Calpine Freestone Energy Center (380 MW + 380 MW): 380 MW agreement to connect and serve the data center adjacent to the Freestone Energy Center, plus an exclusive 380 MW Phase 2 (Constellation). constellationenergy.com ↗

Power and water projects tied to this data center: on-site or dedicated generation, utility and grid capacity deals, substations, water supply, reclaimed water and wastewater permits. Each item is labeled by source type.

Related records

2026-07-23
Building registration (TDLR) Official record Freestone County · CyrusOne Freestone County campus (DFW20A–C)

TDLR TABS: DFW20A, DFW20B, DFW20C, one-story 306,216 sq ft buildings, est. $500M each, FM 488, Fairfield; owner CL FREESTONE 1 LLC.

Source: tdlr.texas.gov ↗

Sources

Found an error? Email [email protected] with a source link.

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