Google secures 2.7 GW power deal in Wyoming with Black Hills

Alphabet subsidiary Google has entered into definitive agreements with utility company Black Hills Corp. to power its planned data center in Cheyenne, Wyoming. Effective September 30, 2026, the contracts run through 2048 and cover a Large Power Contract Services Agreement alongside a Generation Facilities Agreement.

The project will be served by an energy mix totaling 2.7 GW, which includes reserve margins. Google is scheduled to start receiving energy service in late 2027 and ramp up to peak load by 2030. Black Hills will deliver up to 590 MW of grid-connected service, backed by 564 MW of new natural gas generation at its Cheyenne Prairie Generating Station and 26 MW from market purchases and retail utility supply. The utility will also manage 2.1 GW of third-party contracted resources located in Wyoming across a private microgrid.

To build the 564 MW generation capacity, Black Hills plans to invest $1.8 billion between 2027 and 2029. Google provided $399 million in refundable advances for long lead-time equipment procurement under a generation reservation agreement, which Black Hills plans to reimburse by June 30, 2027.

The framework requires Google to bear all costs associated with serving the facility throughout the contract term. The contracts include early termination protections, cost pass-through mechanisms, full recovery of capital investment to prevent stranded asset risks, and financial assurance requirements.