{"id":"9bf4a473-a657-4b97-8a64-fc31b399d260","slug":"microsoft-cheyenne-wyoming","name":"Microsoft Cheyenne Data Center Campus","aliases":["Microsoft Bison Business Park","Microsoft Cheyenne expansion"],"locationId":"80d28a1d-b9ab-48ad-a239-98871e8e68f9","lat":41.08845916666667,"lng":-104.7766330333333,"locationPrecision":"exact","landStatus":"greenfield","lifecycleState":"energized","powerSourceMix":"grid","interconnectionQueueStatus":null,"interconnectionQueueId":null,"expectedEnergizationDate":null,"dedicatedSubstation":null,"gridOperator":"WECC","waterSourceNotes":"Direct evaporative cooling uses water less than 10% of the year; Microsoft commits to replenish an estimated 566M gallons of water. Served by Black Hills Energy under Large Power Contract Service (LPCS) tariff.","servingUtility":null,"acreage":3200,"totalBuildingSqft":null,"streetAddress":null,"notes":"Microsoft has operated data centers in Cheyenne since 2012 and on 2026-04-14 announced intent to buy ~3,200 acres south of the city (200-acre Bison Business Park parcel plus adjacent 3,000 acres) to roughly triple its footprint over a multiyear buildout. Microsoft did not disclose an MW/GW figure for the expansion; power is via Black Hills Energy's Large Power Contract Service tariff.","keyFacts":[{"label":"~3,200-acre expansion intent (primary Microsoft)","value":"Microsoft announced (Apr 14 2026) intent to purchase about 3,200 acres to expand datacenter operations in Cheyenne: roughly 200 acres in Bison Business Park on Wapiti Trail east of S Greeley Highway, plus about 3,000 adjacent acres in southeast Cheyenne. The company says it has operated there since its first Cheyenne datacenter in 2012 and frames the purchase as the start of a multiyear planning and development process with public hearings ([Microsoft Source, Apr 14 2026](https://news.microsoft.com/source/2026/04/14/microsoft-announces-intent-to-expand-datacenter-operations-in-cheyenne-accelerating-innovation-and-economic-growth/))","sourceUrl":"https://news.microsoft.com/source/2026/04/14/microsoft-announces-intent-to-expand-datacenter-operations-in-cheyenne-accelerating-innovation-and-economic-growth/"},{"label":"Black Hills Energy LPCS tariff (primary Microsoft)","value":"Microsoft states power acquisition for Cheyenne is guided by Black Hills Energy's Large Power Contract Service (LPCS) tariff, under which Microsoft directly pays for infrastructure upgrades and power procured to serve its load, with the company saying the structure is designed so datacenter development does not increase electricity prices for other customers ([Microsoft Source, Apr 14 2026](https://news.microsoft.com/source/2026/04/14/microsoft-announces-intent-to-expand-datacenter-operations-in-cheyenne-accelerating-innovation-and-economic-growth/))","sourceUrl":"https://news.microsoft.com/source/2026/04/14/microsoft-announces-intent-to-expand-datacenter-operations-in-cheyenne-accelerating-innovation-and-economic-growth/"},{"label":"Community investment / taxes / jobs (primary Microsoft)","value":"Microsoft says it has committed over $68 million in completed and future off-site infrastructure improvements in Cheyenne, contributed over $11 million to the Laramie County tax base in 2025 (No. 1 taxpayer in Cheyenne; No. 2 in Laramie County), employs over 320 full-time workers there, has trained over 1,000 students via a Datacenter Academy with Laramie County Community College since 2019, and has donated $4.7 million to local organizations since 2018. Water framing: existing Wyoming facilities use direct evaporative cooling less than 10% of the year, with newer designs aiming to eliminate ongoing cooling water after initial fill ([Microsoft Source, Apr 14 2026](https://news.microsoft.com/source/2026/04/14/microsoft-announces-intent-to-expand-datacenter-operations-in-cheyenne-accelerating-innovation-and-economic-growth/))","sourceUrl":"https://news.microsoft.com/source/2026/04/14/microsoft-announces-intent-to-expand-datacenter-operations-in-cheyenne-accelerating-innovation-and-economic-growth/"}],"reviewStatus":"reviewed","sources":[{"url":"https://news.microsoft.com/source/2026/04/14/microsoft-announces-intent-to-expand-datacenter-operations-in-cheyenne-accelerating-innovation-and-economic-growth/","date":"2026-04-14","title":"Microsoft announces intent to expand datacenter operations in Cheyenne","publisher":"Microsoft"},{"url":"https://county17.com/2026/04/14/microsoft-plans-massive-3200-acre-expansion-of-cheyenne-data-centers/","date":"2026-04-14","title":"Microsoft plans massive 3,200-acre expansion of Cheyenne data centers","publisher":"County 17"}],"reviewNote":null,"createdAt":"2026-08-17T20:25:23.913Z","updatedAt":"2026-09-29T06:43:40.736Z","location":{"id":"80d28a1d-b9ab-48ad-a239-98871e8e68f9","name":"Cheyenne","slug":"cheyenne-wyoming","kind":"city","parentLocationId":"c9363513-cb8f-4c32-bf25-fe6843ae9a8c","region":"Wyoming","lat":41.139981,"lng":-104.820246,"reviewStatus":"reviewed","aliases":[],"collisionRisk":"high","reviewNote":null,"createdAt":"2026-08-17T20:25:23.532Z","updatedAt":"2026-08-21T18:01:24.112Z"},"parties":[{"id":"a89e2a54-e831-4413-8bb1-e09c371c1778","dataCenterId":"9bf4a473-a657-4b97-8a64-fc31b399d260","companyId":null,"externalName":"Black Hills Energy","role":"utility","structureNotes":"Large Power Contract Service (LPCS) tariff; Microsoft covers infrastructure upgrade costs","createdAt":"2026-08-17T20:25:25.110Z","company":null},{"id":"a69f661e-9e8a-4de7-b8af-cbc034af04c3","dataCenterId":"9bf4a473-a657-4b97-8a64-fc31b399d260","companyId":"b8670b58-67f2-4b87-9b46-9e16588dc1e6","externalName":"Microsoft","role":"operator","structureNotes":null,"createdAt":"2026-08-17T20:25:24.339Z","company":{"id":"b8670b58-67f2-4b87-9b46-9e16588dc1e6","name":"Microsoft","slug":"microsoft"}}],"capacityClaims":[],"financialClaims":[{"id":"a53daa9b-4708-4a9c-88c9-bb7a330884da","dataCenterId":"9bf4a473-a657-4b97-8a64-fc31b399d260","kind":"capex","label":"Off-site infrastructure improvements","valueUsd":"68000000","capUsd":null,"conditions":"Completed and future off-site infrastructure improvements associated with Cheyenne datacenter 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