Calpine Corporation is a power generation company that operates natural gas-fired power plants in Texas, including facilities that serve the state's electricity grid managed by ERCOT.
Referenced in 5 briefingsLast referenced: June 10, 2026
Oracle's 2.45 GW fuel-cell campus in New Mexico and CyrusOne's 380 MW colocation behind Calpine's Freestone gas plant tell the same story from opposite ends of the queue.
Blackstone and Halliburton announced a $1 billion investment in VoltaGrid for behind-the-meter generation May 11, NVIDIA committed $2.1 billion to IREN with the Sweetwater Texas 2 GW campus at the center, and Constellation locked another 380 MW with CyrusOne in Texas on top of Calpine's prior 400 MW.
CyrusOne topped out DFW10, a $750 million, 250,000 sq ft building at its new 400+ MW campus in Bosque County, Texas, adjacent to Calpine's 250 MW Thad Hill Energy Center.
CyrusOne and Constellation Energy have struck a 380-MW power deal to build a massive data center campus adjacent to Calpine's Freestone Energy Center in Freestone County, Texas, the latest and one of the largest behind-the-meter gas-plant pairings in ERCOT.