Greenfield (ROCK CREEK - WAUTOMA)
GreenfieldKlickitat County, California · WECC
At a glance
Greenfield (ROCK CREEK - WAUTOMA) is a greenfield datacenter candidate site in Klickitat County, California, scoring 55.1/100 DC Readiness — 24th of 55 scored sites in the county. Its nearest substation is ROCK CREEK. It sits in the WECC grid region, where interconnection has averaged 7.6 years from request to operation. GridCensus catalogs 1,000 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
No notable statewide DC restriction on record; confirm local zoning and utility tariffs.
Incentive detail: Sales tax exemption on DC equipment and construction for eligible facilities; no state income tax.
Site location
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How does Greenfield (ROCK CREEK - WAUTOMA) compare with other sites in Klickitat County?
Greenfield (ROCK CREEK - WAUTOMA) ranks 24th of 55 scored candidate sites in Klickitat County. Its 55.1/100 is roughly in line with the county average of 54.1. It is about 21% above the California average of 45.4 and roughly in line with the national average of 53.2.
Against the California average, its strongest sub-score is water (64 vs 27) and its weakest is fiber connectivity (46 vs 66). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Greenfield (ROCK CREEK - WAUTOMA) to power, fiber and other datacenters?
The nearest mapped substation, ROCK CREEK, is the closest grid connection point on record and operates at 500 kV. For connectivity, the nearest internet exchange facility is YAKMWAFP - Wholesail Yakima at 39.8 miles. 5 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is amazon web services DC, 23.9 miles away.
What are the flood, water and hazard risks at Greenfield (ROCK CREEK - WAUTOMA)?
At the county level, FEMA's National Risk Index rates Klickitat County "Relatively Moderate".
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 Klickitat County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| CELILO | Substation-Adjacent | 1000 kV | 1,000 MW | 3.5 yrs | 65.6 |
| BIG EDDY | Substation-Adjacent | 500 kV | 1,000 MW | 3.5 yrs | 64.8 |
| JOHN DAY 1 | Substation-Adjacent | 500 kV | 1,000 MW | 3.5 yrs | 63.9 |
| ROCK CREEK | Substation-Adjacent | 500 kV | 1,000 MW | 3.5 yrs | 62.9 |
| TAP209123 | Substation-Adjacent | 345 kV | 600 MW | 3.5 yrs | 60.7 |
| OZ Klickitat | Greenfield | — | — | 3.5 yrs | 59.7 |
| HARVALUM | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 59.6 |
| WILLIS | Substation-Adjacent | 230 kV | 300 MW | 3.5 yrs | 59.5 |
Greenfield (ROCK CREEK - WAUTOMA): common questions
What is the DC Readiness score of Greenfield (ROCK CREEK - WAUTOMA)?
Greenfield (ROCK CREEK - WAUTOMA) scores 55.1/100 on the GridCensus DC Readiness scale, rated good. It ranks 24th of 55 scored sites in Klickitat County. The Klickitat County average is 54.1 and the California average is 45.4.
What is the nearest substation to Greenfield (ROCK CREEK - WAUTOMA)?
The nearest mapped substation is ROCK CREEK, at 500 kV. GridCensus catalogs 1,000 MW of candidate capacity for the site.
What grid region is Greenfield (ROCK CREEK - WAUTOMA) in?
Greenfield (ROCK CREEK - WAUTOMA) is in the WECC region. Projects interconnecting there have averaged a 7.6-year wait from queue request to operation.
How far is Greenfield (ROCK CREEK - WAUTOMA) from an internet exchange?
The nearest internet exchange facility is YAKMWAFP - Wholesail Yakima, about 39.8 miles away; 5 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, “Greenfield (ROCK CREEK - WAUTOMA), Klickitat County, CA”, https://gridcensus.com/datacenter-sites/california/klickitat-county/greenfield-rock-creek-wautoma-b099f96f (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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