Brownfield Datacenter Sites in Colorado
At a glance
Previously developed land with real or perceived environmental contamination. Brownfields trade remediation overhead for existing utility hookups, infill locations near fiber, and redevelopment incentives.
Top brownfield sites in Colorado
| Site | Type | County | Former use | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| Aurora/Arapahoe Solar Array | Brownfield | Denver | brownfield | 230 kV | 1 MW | 3.5 yrs | 64.4 |
| Lamar Station Crossing | Brownfield | Jefferson | brownfield | 115 kV | 0 MW | 3.5 yrs | 63.0 |
| Place Bridge Academy | Brownfield | Arapahoe | landfill | 115 kV | 0 MW | 3.5 yrs | 60.4 |
| Front Range Project | Brownfield | Broomfield County | gas | 69 kV | 2 MW | 4.3 yrs | 60.2 |
| 3 MW LLC | Brownfield | Delta County | gas | 115 kV | 3 MW | 4.3 yrs | 58.8 |
| Coyote Ridge Solar | Brownfield | Larimer | landfill | 115 kV | 2 MW | 3.5 yrs | 57.9 |
| New Rifle Mill | Brownfield | Garfield | brownfield | 138 kV | 2 MW | 3.5 yrs | 56.4 |
| Cameo | Brownfield | Mesa County | coal | 230 kV | 75 MW | 3.5 yrs | 54.8 |
| Lamar Plant | Brownfield | Prowers County | coal | 115 kV | 56 MW | 4.3 yrs | 52.9 |
| Norwood Landfill Community Solar | Brownfield | San Miguel | landfill | 115 kV | 0 MW | 4.3 yrs | 52.9 |
| Castle Creek Hydroplant | Brownfield | Pitkin County | hydro | 115 kV | 1 MW | 3.5 yrs | 49.7 |
How does Colorado compare with other states for brownfield sites?
With 11 sites, Colorado ranks 24th of the 49 states that have any brownfield candidate sites. California leads with 103. Nationally, brownfield sites average 57.5/100 DC Readiness, above the 53.0 average across all site types. Across every site type, Colorado averages 50.6, the 45th-highest of 52 states, and its candidate sites face an average interconnection-queue wait of 4.0 years.
Where are the highest-scoring brownfield sites in Colorado?
The top 11 range from 64.4 to 49.7 on the 0–100 DC Readiness Score. They are spread across 11 different counties, including Denver, Jefferson and Arapahoe. By grid region, 7 are in WECC and 4 are in SPP.
County pages: Denver · Jefferson · Arapahoe · Broomfield County
What power, fiber and flood exposure do these brownfield sites have?
Of the top 11 brownfield sites in Colorado, 11 have a recorded nearest-substation voltage, with a median of 115 kV; for 2 that substation is rated 230 kV or higher. Their counties have a median of 6 fixed fiber broadband providers in FCC data. The median distance to the nearest internet exchange facility is 90 km. The median interconnection-queue wait in their markets is 3.5 years. None of the 11 with a mapped FEMA flood zone sits in a high-risk (A or V) zone.
Frequently asked questions
How many brownfield datacenter sites are in Colorado?
GridCensus catalogs 11 brownfield datacenter candidate sites in Colorado, 1% of the national total for this type (24th of 49 states).
What is a brownfield datacenter site?
Previously developed land with real or perceived environmental contamination. Brownfields trade remediation overhead for existing utility hookups, infill locations near fiber, and redevelopment incentives.
What is the best brownfield datacenter site in Colorado?
By DC Readiness Score, Aurora/Arapahoe Solar Array in Denver ranks first at 64.4/100, followed by Lamar Station Crossing in Jefferson at 63.0.
Which Colorado counties have the best brownfield sites?
The top 11 brownfield sites in Colorado are spread across 11 different counties, including Denver, Jefferson and Arapahoe.
How does Colorado score for datacenters overall?
All 3,428 scored sites in Colorado average 50.6/100 DC Readiness, the 45th-highest of 52 states, against a national average of 53.0.
More on brownfield sites and Colorado
- All datacenter sites in Colorado· 3,428 sites
- Brownfield datacenter sites nationwide· 771 sites
- Federal Excess sites in Colorado· 911 sites
- Substation-Adjacent sites in Colorado· 899 sites
- Industrial sites in Colorado· 821 sites
- Former Mine sites in Colorado· 471 sites
- Greenfield sites in Colorado· 314 sites
Brownfield sites in other states
- Brownfield sites in California· 103 sites
- Brownfield sites in New Jersey· 52 sites
- Brownfield sites in New York· 48 sites
- Brownfield sites in Massachusetts· 44 sites
- Brownfield sites in Iowa· 38 sites
- Brownfield sites in Illinois· 33 sites
- Brownfield sites in Texas· 30 sites
- Brownfield sites in Ohio· 29 sites
Dataset updated . Screening estimates derived from public data sources.
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published November 12, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Brownfield datacenter sites in Colorado”, https://gridcensus.com/site-types/brownfield/colorado (data as of November 12, 2026).
Go deeper than the public screen
Every site and score for Brownfield sites in Colorado is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.