Project Tembo
Google · Cheyenne, WY · United States
Facility record
- Lifecycle
- Under constructionSource-reported lifecycle
- Location precision
- approximate
- Address as listed
- Not published
- Coordinates
- 41.12, -104.82
- Serving utility, source-reported
- Black Hills Energy
- Operational capacity, source-reported
- Not published
- Planned capacity, source-reported
- 2700 MW
- Source record updated
- 2026-10-30
Source-reported capacity; not metered consumption. Review underlying documents and notes. Planned capacity may include future phases and is not added to operational capacity here. The source may use facility, grid-feed or IT capacity definitions; consult the linked documents.
Coordinate precision is a source label, not an independent parcel survey. A marker does not confirm utility territory or establish an effect on residential bills.
Reported lifecycle history
- Under construction
Laramie County approved the project Jan 2026; site work underway at Switchgrass Industrial Park (Hwy 85 south of Cheyenne). Crusoe (original builder) exited June 2026; Tallgrass now works directly with the unnamed DC client
Underlying source - Under construction
Google publicly revealed as owner/operator (via subsidiary Jupiter Star Holdings, which replaced Crusoe Energy as builder); project renamed 'Project Tembo'. Capacity confirmed at 2.7GW with potential to scale to 10GW total. Completion targeted 2031.
Underlying source
Source notes
Switchgrass Industrial Park, Hwy 85 south of Cheyenne, Laramie County - geographically distinct from Meta (Project Cosmo) and Microsoft's Cheyenne campuses. 716-acre campus. Originally announced at 1.8GW as 'Project Jade' with an undisclosed hyperscale client (Crusoe Energy as builder); Crusoe exited June 2026. On 2026-07-08, Google was publicly revealed as owner/operator via subsidiary Jupiter Star Holdings, and the project was renamed 'Project Tembo'; capacity confirmed at 2.7GW with an ultimate ceiling of up to 10GW. The Cheyenne Power Hub on-site natural-gas plant supplies power (Tallgrass Energy; Black Hills Energy co-invested). ~$50B total project figure remains a projection. Completion targeted 2031.
Cheyenne Power Hub natural-gas plant (Tallgrass), scalable toward multi-GW; Black Hills Energy co-invested.
Sources and provenance
- Crusoe gets go-ahead for 1.8GW data center campus and power plant in Cheyenne, Wyoming · source retrieved 2026-07-07
- Partner pulling out doesn't slow huge 2.7GW Cheyenne Project Jade data center · source retrieved 2026-07-07
- Say Hello To Google, The Mystery Owner Behind Wyoming's Largest Data Center Project · source retrieved 2026-10-17
- Wyoming Approves Data Center Campus That Includes 2.7 GW of New Natural Gas-Fired Generation · source retrieved 2026-08-07
- Wyoming data center power projects highlight new entrants, partnerships in power generation market · source retrieved 2026-09-02
- Laramie County approves construction of what could become the largest data center in US · source retrieved 2026-09-02
- Black Hills Corp. executes definitive agreements to serve Google's planned data center in Cheyenne, Wyoming · source retrieved 2026-10-17
- 'Mind-Boggling': With No Zoning, Fremont County In The Dark On $66B Data Center Plan (cites Project Tembo at $17B) · source retrieved 2026-10-17
Power Wars capture: 2026-11-02. Compute Atlas, CC BY 4.0. Entries are not independently verified by Power Wars unless stated.