Constellation Energy Corporation has announced a major agreement between its subsidiary Calpine LLC and CyrusOne, a leading global data center developer and operator, to provide 380 MW of power, grid connectivity, and site infrastructure for a new hyperscale data center facility adjacent to the Freestone Energy Center in Freestone County, Texas. The deal continues to highlight the growing demand for digital infrastructure in Texas and the US, as well as the demand being imposed on the regional grids.

More on Constellation-CyrusOne Deal to Power New Freestone Data Center in Texas

Under the agreement, Calpine will use its Powered Land Capabilities. This is a suite of services that pairs generation, land, and transmission access. The services will support the new data center’s energy needs while ensuring reliable flows to the wider regional grid. Calpine also agreed exclusively to support Phase 2 of the development, adding another 380 MW of capacity. This will effectively enable over 760 MW of total power support across both phases. These commitments also build on earlier agreements between Calpine and CyrusOne for data center support at the Thad Hill Energy Center in Bosque County. Together, they now amount to over 1,100 MW of contracted capacity for CyrusOne data centers across Texas.

Key Quote

Joe Dominguez, President and CEO of Constellation, also highlighted the strategic value of this partnership in meeting the digital economy’s surge while maintaining grid reliability. Joe also pointed to the contribution made to local jobs and spur witnessed in economic growth. CyrusOne CEO Eric Schwartz also emphasized the collaboration’s role in delivering scalable and reliable infrastructure for customers in one of the fastest-growing data center markets in the region.

The new data center will be situated about 80 miles southeast of Dallas. Leveraging existing energy infrastructure around the Freestone Energy Center will help its development and reduce lead times for hyperscale build-out. The project also exemplifies how power producers and digital infrastructure developers are increasingly coordinating generation and connectivity to support rapid expansion of cloud, AI, and enterprise data services in key US markets. This is also as seen with TotalEnergies latest power supply deal with Google in Texas.

Project Factsheet for Freestone Data Center Power Support in Texas

Location: Adjacent to Freestone Energy Center in Freestone County, Tx

Developer/Power Provider: Constellation Energy Corporation via subsidiary Calpine LLC

Offtaker/Facility Operator: CyrusOne Inc.

Capacity Under Contract:

• Phase 1: 380 MW power supply support
• Phase 2 in exclusive agreement: additional 380 MW support

Total potential capacity: 760 MW across both phases. Also features as part of more than 1.1 GW contracted capacity for CyrusOne data centers in Texas.

Service Component: Power, grid connectivity and site infrastructure. These have been enabled through Powered Land Capabilities to integrate generation, land and transmission access for the new data center.

Grid Region: Electric Reliability Council of Texas (ERCOT)

Project Impact:

• Supports rapid data center development in Texas
• Enables scalable infrastructure for AI and cloud workloads
• Reinforces grid reliability and economic activity in the region

New Freestone Data Center Project Contractors and Key Partners

• Constellation Energy Corporation

Prime power solutions provider. Also the parent company coordinating the power support agreement.

• Calpine LLC

Constellation subsidiary executing the agreement. Will provide power, grid connectivity and site infrastructure under Powered Land Capabilities.

• CyrusOne Inc.

Hyperscale data center developer, operator and power offtaker.

• Powered Land Capabilities Partners

Features Constellation, Calpine engineering, generation and land coordination teams. Are responsible for integrating generation assets with data center load.

• ERCOT Grid Authorities

Oversee regulation, connection and delivery within the grid.

What Constellation and CyrusOne Deal to Power New Freestone Data Center Means for Texas

Texas is emerging as an important hub for data center deployments due to its competitive power markets, available land and strong transmission infrastructure. And projects like this and Skull Creek solar plant in Anderson County – supplying Meta’s Texas operations, are helping cement the Lonestar state’s role as a destination for digital infrastructure investment.