Constellation and CyrusOne Announce New Texas Data Center Agreement

The deal provides CyrusOne access to power, grid connectivity, and site infrastructure for a new facility near Freestone Energy Center.

Published on Feb. 12, 2026

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Constellation, through its Calpine LLC business unit, has signed a 380-megawatt agreement with data center operator CyrusOne to connect and serve a new data center facility adjacent to Constellation's Freestone Energy Center in Freestone County, Texas. The agreement also includes an exclusive deal for an additional 380 MW in Phase 2 of the project. This builds on previous agreements between the companies for a facility in Bosque County, Texas.

Why it matters

The deal demonstrates Constellation's ability to meet growing demand from the data economy while maintaining grid reliability and supporting economic growth in local communities. It also reinforces CyrusOne's commitment to expanding its data center footprint in Texas.

The details

Under the agreement, Calpine will provide CyrusOne with access to power, grid connectivity, and site infrastructure needed to develop the new data center facility. Calpine has also entered an exclusive agreement to provide the same for a planned 380 MW Phase 2 expansion. This builds on previous 400 MW agreements between the companies for a facility in Bosque County.

  • The new 380 MW agreement was signed on February 12, 2026.
  • The exclusive 380 MW Phase 2 agreement was also announced on February 12, 2026.

The players

Constellation

An energy company and subsidiary of Exelon Corporation that provides power generation, energy delivery, and energy management services.

Calpine LLC

A business unit of Constellation that operates power plants, including the Freestone Energy Center in Texas.

CyrusOne

A global data center developer and operator based in Dallas, Texas.

Freestone Energy Center

A power plant operated by Calpine LLC in Freestone County, Texas, approximately 80 miles southeast of Dallas.

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What they’re saying

“This agreement with CyrusOne demonstrates Constellation's ability to meet the growing demand from the data economy while maintaining grid reliability, creating jobs and economic growth, and benefiting local customers and communities.”

— Joe Dominguez, President and CEO, Constellation

“This agreement reinforces CyrusOne's commitment to meeting customer demand in Texas. Partnering with Constellation and Calpine enables us to deliver reliable, scalable infrastructure while ensuring grid reliability for local communities.”

— Eric Schwartz, CEO, CyrusOne

What’s next

The new 380 MW data center facility adjacent to the Freestone Energy Center is expected to begin operations in the coming years, with a planned 380 MW Phase 2 expansion to follow.

The takeaway

This agreement highlights Constellation's ability to support the growing data economy by providing reliable power and infrastructure solutions, while also benefiting local communities and the broader Texas grid. It demonstrates the continued partnership between Constellation and CyrusOne to expand data center capacity in the state.