Microsoft Cheyenne Bison Campus: 400 MW Hyperscale Expansion

Status: Announced / Pre-Development (April 14, 2026)   |   Location: Southeast Cheyenne (Bison Business Park)

Project Overview

On April 14, 2026, Microsoft officially announced its intent to dramatically scale its cloud presence in Wyoming with the acquisition of approximately 3,200 acres of land in Cheyenne. Known as the Cheyenne Bison Campus, this project represents one of the largest land grabs for data center development in the United States this year. The expansion is strategically split across two major parcels: a 200-acre site within the Bison Business Park and a massive 3,000-acre tract in Southeast Cheyenne. The project is designed to act as a primary engine for Microsoft Azure’s AI and cloud services. By securing such a vast land area, Microsoft is positioning itself to build a multi-gigawatt ecosystem over the next decade, with an initial power target of 400 MW for the first several phases. The Cheyenne location is ideal due to its high altitude and cool climate, which significantly enhances cooling efficiency and reduces the operational power usage effectiveness (PUE). A standout feature of the Bison Campus is its "water-aware" design. Microsoft has committed to using direct evaporative cooling for less than 10% of the year, with newer building designs on the site aiming for zero water consumption for cooling after the initial system fill. This is a critical sustainability move for the semi-arid Wyoming climate. Additionally, Microsoft is partnering with local energy providers to bring new wind and carbon-free electricity to the Western Electricity Coordinating Council (WECC) grid, ensuring the campus maintains a net-zero carbon trajectory.

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