Data Center Registry

Microsoft Cheyenne Mega-Campus Expansion

Cheyenne, Laramie County, Wyoming · All 54 Microsoft sites · Every Microsoft case on our tracker

PermittedSupportedAI confirmedRecord updated October 22, 2026

Microsoft Cheyenne Mega-Campus Expansion is a permitted data center in Cheyenne, Wyoming (Laramie County), operated by Microsoft. The public record puts it at announced April 2026, 3,200 acres. It has documented public support and no documented opposition.

Every line on this page traces to a public source listed at the bottom. Where a figure was looked for and not found, the row says so. A blank is never a zero.

Facility record

Permitted

Operator: Microsoft
Facility type: Data center, AI use confirmed
Location: Cheyenne, Laramie County, WY
Coordinates: 41.0900, -104.7900 (approximate)
Power capacity: Not established from a public source
Land: 3,200 acres
Investment: Not established from a public source
Announced: April 2026
Utility: Black Hills Energy
Power source: Grid
Cooling: Evaporative
Water use: Not established from a public source
Jobs: Not established from a public source
Public subsidy: Wyoming Data Center Sales Tax Exemption, Wyoming | Wyoming Business Council Business Ready Community (BRC) grant and loan program, Wyoming
Community reception: Supported
Source confidence: Reported by at least one credible outlet or filing

Timeline from the record

Newest first. Record entries come from the filings and reports the registry cites. Coverage entries are headlines from publisher feeds we monitor daily, linked to the outlet; last checked September 14, 2026.

July 22, 2026
Permitted
Microsoft closed on its ~3,460-acre land purchase (June 26, 2026) and the Cheyenne City Council approved annexation and zoning for the expansion parcel on a 6-3 vote (July 13-14, 2026), clearing the land-use path for the campus; construction has not been reported as begun on this parcel yet. Note: a local referendum petition against the annexation was launched July 20, 2026, so this approval could still be contested. Source: Wyoming Tribune Eagle
April 2026
Proposed
Microsoft announced intent to purchase 3,200 acres: 200 acres at Bison Business Park on Wapiti Trail + 3,000 acres in Southeast Cheyenne, tripling Wyoming footprint Source: Microsoft

Opposition and litigation at this site

Not that we can document. Local officials or residents have expressed public support for Microsoft Cheyenne Mega-Campus Expansion in Cheyenne, Laramie County, Wyoming, and no opposition, petition, or lawsuit appears in the sources this registry tracks as of October 22, 2026. Microsoft committed $68M to off-site infrastructure (roads, storm sewers, trails, water).

How the community has taken it

Reception is a sourced signal, not an editorial judgment: supported means local officials or residents have expressed public support and no opposition is documented.

Microsoft committed $68M to off-site infrastructure (roads, storm sewers, trails, water). Will not accept local property tax incentives. Contributed $11M to Laramie County tax base in 2025. Operating in Cheyenne since 2012.

Source: Microsoft

Power and water

Large Power Contract Service (LPCS) tariff; Microsoft funds all grid infrastructure upgrades without raising residential rates. Hydrogen fuel cell pilot (Caterpillar) tested 48-hour backup power. Commitment to carbon-free energy matching fossil fuel consumption.

Microsoft says it is moving toward closed-loop cooling to limit water withdrawal and consumption. The design for the expansion is not final.

Public money on the record

Program	Amount	Granted by	Year
Wyoming Data Center Sales Tax Exemption	Not established	Wyoming
Wyoming Business Council Business Ready Community (BRC) grant and loan program	Not established	Wyoming

Notes on the record

Described by Microsoft as a 'multi-gigawatt multi-decade ecosystem.' The 400 MW initial-target figure that appeared in the prior record was NOT found in either cited source and has been removed pending a citable source (neither the Microsoft newsroom announcement nor Cowboy State Daily mentions a specific MW figure). Separate from existing Cheyenne campus (since 2012) and the HR Ranch Road construction underway 2025-2026. Coordinates approximate for Bison Business Park / SE Cheyenne area.

What the record does not establish, and the document that would

In every fight on our tracker the decisive fact came out of a public records request. These are the requests for this site.

Power capacity in megawatts
Permanent jobs promised

Which document closes each gap

Power capacity in megawatts: The utility's large load service agreement, the interconnection request in the grid operator's queue, or the electrical site plan in the permit file.
Permanent jobs promised: The economic development application or incentive agreement, which usually states a job commitment and a clawback.

Have one of these documents? Send it to us and we will add it to the record with attribution.

Other sites within 30 miles

Distances are between recorded coordinates, many of which are a city or county centroid, so treat them as approximate. Cumulative load on one utility and one aquifer is the question a planning commission rarely asks.

Meta Cheyenne Data Center · Cheyenne · Meta1 mi · Under construction · 109 MW · Supported
Orchard Hills Data Center · Cheyenne · Trammell Crow Company1 mi · Proposed · Opposed
Lunavi Cheyenne Data Center · Cheyenne · Lunavi1 mi · Operating · 8 MW
Project Tembo · Cheyenne · Google3 mi · Under construction · 2.7 GW · Mixed reception
Crypto Knight Hosting Cheyenne Bitcoin Mining Facility · Cheyenne · Crypto Knight Hosting4 mi · Operating
CleanSpark Cheyenne Bitcoin Mining Campus · Cheyenne · CleanSpark, Inc.4 mi · Operating · 75 MW
Related Digital Cheyenne Data Center Campus · Cheyenne · Related Digital4 mi · Under construction · 302 MW
EchoStar Cheyenne Data Center and Satellite Uplink Facility · Cheyenne · EchoStar5 mi · Operating

Tell us about your situation

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Questions people ask about this site

Is there opposition to the Microsoft Cheyenne Mega-Campus Expansion in Cheyenne?

Has anyone filed a lawsuit over the Microsoft Cheyenne Mega-Campus Expansion?

No lawsuit over Microsoft Cheyenne Mega-Campus Expansion appears in the record we track as of October 22, 2026. Residents most often reach a lawyer over water supply, well drawdown, noise from cooling plant, property value, or a rezoning approved without the notice the ordinance required. If any of that is happening near this site, it is worth a review whether or not a case has been filed yet.

How much water does Microsoft Cheyenne Mega-Campus Expansion use?

No water withdrawal figure for Microsoft Cheyenne Mega-Campus Expansion is on record here. Cooling is recorded as evaporative, which is the strongest available clue: closed loop and air cooled plant draw far less than evaporative cooling. We leave the number blank rather than estimate one.

Who operates Microsoft Cheyenne Mega-Campus Expansion, and how big is it?

Microsoft is the operator on record. We hold 54 sites for that company across the registry. No capacity figure is on record for this site. The site is recorded at 3200 acres.

How to cite this page

SueDataCenters.org Data Center Registry, "Microsoft Cheyenne Mega-Campus Expansion," updated October 22, 2026, https://suedatacenters.org/data-centers/microsoft-cheyenne-expansion-wy.

Facility data from Compute Atlas (E. Kubiak), version 1.34.1 (October 4, 2026), licensed CC BY 4.0, record https://www.compute-atlas.com/facilities/microsoft-cheyenne-expansion-wy, retrieved October 29, 2026.

Corrections with a public source are welcome at the Compute Atlas record or through our contact page. The whole registry is available as CSV and JSON under CC BY 4.0.

Sources for this record

As compiled and cited by Compute Atlas, with our own reporting appended. Archived links are used where the original has moved.

1.Microsoft Announces Intent to Expand Datacenter Operations in Cheyenne · Microsoft · retrieved September 21, 2026
2.Microsoft to Triple Its Cheyenne Data Center Footprint With 3,200-Acre Land Buy · Cowboy State Daily · retrieved October 17, 2026
3.Cheyenne City Council approves Microsoft's 3,460-acre annexation after hours of public debate · Wyoming Tribune Eagle · retrieved July 22, 2026
4.Cheyenne is 3,500 acres larger after approving controversial Microsoft annexation · County 17 · retrieved July 22, 2026
5.Wyoming Business Council program & service catalog, materials prepared for the Joint Minerals Committee (June 2026), Data Center Sales Tax Exemption recipients · Wyoming Business Council / Wyoming Legislature · retrieved August 19, 2026

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