UNISOURCE GOLDEN VALLEY
Substation-AdjacentMohave County, Arizona · WECC
At a glance
UNISOURCE GOLDEN VALLEY is a substation-adjacent datacenter candidate site in Mohave County, Arizona, scoring 55.9/100 DC Readiness — 13th of 275 scored sites in the county. Its nearest substation is UNISOURCE GOLDEN VALLEY (0 mi, 230 kV). It sits in the WECC grid region and the UNS ELECTRIC, INC service territory, where interconnection has averaged 3.5 years from request to operation. GridCensus catalogs 300 MW of candidate capacity here.
Power & interconnection
Speed to power
Deep queue and long historical waits — plan for a multi-year interconnection timeline and engage the utility early.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
Sales-tax exemption suspended Jul 2026–Jun 2029; water constraints add scrutiny.
Incentive detail: Government Property Lease Excise Tax (GPLET) for qualified facilities on government land.
Site location
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How does UNISOURCE GOLDEN VALLEY compare with other sites in Mohave County?
UNISOURCE GOLDEN VALLEY ranks 13th of 275 scored candidate sites in Mohave County. Its 55.9/100 is about 19% above the county average of 46.8. It is about 15% above the Arizona average of 48.5 and roughly in line with the national average of 53.2.
Against the Arizona average, its strongest sub-score is power availability (78 vs 34) and its weakest is water (16 vs 17). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is UNISOURCE GOLDEN VALLEY to power, fiber and other datacenters?
The nearest mapped substation, UNISOURCE GOLDEN VALLEY, is about 0 miles away and operates at 230 kV. For connectivity, the nearest internet exchange facility is EdgeConneX Las Vegas (EDCLAS01) at 79.1 miles. 10 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Google, 74.1 miles away.
What are the flood, water and hazard risks at UNISOURCE GOLDEN VALLEY?
At the county level, FEMA's National Risk Index rates Mohave County "Relatively Low".
Full DC Readiness breakdown
All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.
Nearby comparable sites
Other scored datacenter candidate sites in Mohave County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| UNKNOWN301539 | Substation-Adjacent | 500 kV | 1,000 MW | 7.6 yrs | 63.6 |
| EC Coal Mohave County | Greenfield | — | — | 3.5 yrs | 58.8 |
| EC Coal Mohave County | Greenfield | — | — | 3.5 yrs | 58.6 |
| PEACOCK | Substation-Adjacent | 345 kV | 600 MW | 3.5 yrs | 57.7 |
| MCCONNICO | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 56.5 |
| GRIFFITH | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 56.5 |
| UNKNOWN310988 | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 56.4 |
| DAVIS | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 56.4 |
UNISOURCE GOLDEN VALLEY: common questions
What is the DC Readiness score of UNISOURCE GOLDEN VALLEY?
UNISOURCE GOLDEN VALLEY scores 55.9/100 on the GridCensus DC Readiness scale, rated good. It ranks 13th of 275 scored sites in Mohave County. The Mohave County average is 46.8 and the Arizona average is 48.5.
What is the nearest substation to UNISOURCE GOLDEN VALLEY?
The nearest mapped substation is UNISOURCE GOLDEN VALLEY, about 0 miles away, at 230 kV. GridCensus catalogs 300 MW of candidate capacity for the site.
Which electric utility serves UNISOURCE GOLDEN VALLEY?
UNS ELECTRIC, INC (investor owned) holds the retail service territory that contains the site; its holding company is UNS ELECTRIC INCORPORATED.
What grid region is UNISOURCE GOLDEN VALLEY in?
UNISOURCE GOLDEN VALLEY is in the WECC region. Projects interconnecting there have averaged a 3.5-year wait from queue request to operation.
How far is UNISOURCE GOLDEN VALLEY from an internet exchange?
The nearest internet exchange facility is EdgeConneX Las Vegas (EDCLAS01), about 79.1 miles away; 10 fiber providers report service at the location.
Related pages
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 October 10, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “UNISOURCE GOLDEN VALLEY, Mohave County, AZ”, https://gridcensus.com/datacenter-sites/arizona/mohave-county/unisource-golden-valley-2910b035 (data as of October 10, 2026).
Dataset updated . Screening estimates derived from public data sources.
Figures are screening estimates derived from public infrastructure data. Catalogued capacity reflects theoretical candidate capacity, not deliverable or committed interconnection. Confirm all values with the utility, ISO, and on-the-ground due diligence.
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