Greenfield (CHESTER - NORTH ROCHESTER)
GreenfieldOlmsted County, California · MISO
At a glance
Greenfield (CHESTER - NORTH ROCHESTER) is a greenfield datacenter candidate site in Olmsted County, California, scoring 54.3/100 DC Readiness — 59th of 65 scored sites in the county. Its nearest substation is CHESTER. It sits in the MISO grid region, where interconnection has averaged 7.6 years from request to operation. GridCensus catalogs 100 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 electricity for qualified DCs.
Site location
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How does Greenfield (CHESTER - NORTH ROCHESTER) compare with other sites in Olmsted County?
Greenfield (CHESTER - NORTH ROCHESTER) ranks 59th of 65 scored candidate sites in Olmsted County. Its 54.3/100 is roughly in line with the county average of 59.1. It is about 20% 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 (92 vs 27) and its weakest is power availability (32 vs 36). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Greenfield (CHESTER - NORTH ROCHESTER) to power, fiber and other datacenters?
The nearest mapped substation, CHESTER, is the closest grid connection point on record and operates at 161 kV. For connectivity, the nearest internet exchange facility is SFN MN-Rochester at 9.6 miles. 11 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Epic / Mayo Data Center, 8.8 miles away.
What are the flood, water and hazard risks at Greenfield (CHESTER - NORTH ROCHESTER)?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk). At the county level, FEMA's National Risk Index rates Olmsted 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 Olmsted County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| UNKNOWN129399 | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 65.5 |
| CASCADE CREEK | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 64.4 |
| BAMBER VALLEY | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 64.2 |
| UNKNOWN129401 | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 64.2 |
| UNKNOWN129387 | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 64.1 |
| EC Coal Olmsted County | Greenfield | — | — | 4.3 yrs | 64.1 |
| ZUMBRO RIVER | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 64.1 |
| IBM | Substation-Adjacent | 161 kV | 100 MW | 4.3 yrs | 64.0 |
Greenfield (CHESTER - NORTH ROCHESTER): common questions
What is the DC Readiness score of Greenfield (CHESTER - NORTH ROCHESTER)?
Greenfield (CHESTER - NORTH ROCHESTER) scores 54.3/100 on the GridCensus DC Readiness scale, rated fair. It ranks 59th of 65 scored sites in Olmsted County. The Olmsted County average is 59.1 and the California average is 45.4.
What is the nearest substation to Greenfield (CHESTER - NORTH ROCHESTER)?
The nearest mapped substation is CHESTER, at 161 kV. GridCensus catalogs 100 MW of candidate capacity for the site.
What grid region is Greenfield (CHESTER - NORTH ROCHESTER) in?
Greenfield (CHESTER - NORTH ROCHESTER) is in the MISO region. Projects interconnecting there have averaged a 7.6-year wait from queue request to operation.
Is Greenfield (CHESTER - NORTH ROCHESTER) in a flood zone?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk).
How far is Greenfield (CHESTER - NORTH ROCHESTER) from an internet exchange?
The nearest internet exchange facility is SFN MN-Rochester, about 9.6 miles away; 11 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 (CHESTER - NORTH ROCHESTER), Olmsted County, CA”, https://gridcensus.com/datacenter-sites/california/olmsted-county/greenfield-chester-north-rochester-015ada24 (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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