CoreSite DE3
CoreSite · Denver, CO · United States
Facility record
- Lifecycle
- Under constructionSource-reported lifecycle
- Location precision
- approximate
- Address as listed
- 4900 Race Street
- Coordinates
- 39.7392, -104.9903
- Serving utility, source-reported
- Xcel Energy
- Operational capacity, source-reported
- Not published
- Planned capacity, source-reported
- 60 MW
- Source record updated
- 2026-10-22
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
CoreSite reached a key construction milestone on DE3, a Denver campus expansion (~600k sq ft, 60 critical MW)
Underlying source
Source notes
DE3 Denver campus expansion: ~600,000 sq ft, 60 critical MW. CoreSite is a colocation/interconnection operator hosting AI/cloud tenants → an AI classification of mixed-use. Coordinates are the Denver centroid. Owned by American Tower.
The Colorado Sun reports CoreSite will draw from the Xcel grid rather than building its own generation; the fully built three-phase development would draw 65 to 75 MW, with phase one about 18 MW. Backup only: 14 diesel generators able to supply roughly 18 MW during outages; under its state air permit no single engine may be tested more than 25 hours a year, between 7 a.m. and 7 p.m.
Sources and provenance
- CoreSite Achieves Key Construction Milestone for New DE3 Data Center in Denver · source retrieved 2026-07-07
- HIFLD Electric Retail Service Territories (ORNL/DOE-CESER, 2023-08 vintage) · source retrieved 2026-07-23
- CoreSite DE3 — Denver Data Center · source retrieved 2026-08-26
- Denver data center generators draw noise complaints in Elyria-Swansea (read via Internet Archive) · source retrieved 2026-08-26
- Colorado's biggest data center wants to add another 98 diesel backup generators — CoreSite water-use figures (read via Internet Archive) · source retrieved 2026-08-26
- What's the status of massive data centers in Colorado? (read via Internet Archive) · source retrieved 2026-08-26
- CoreSite DE3 FAQ · source retrieved 2026-10-30
Power Wars capture: 2026-11-02. Compute Atlas, CC BY 4.0. Entries are not independently verified by Power Wars unless stated.