Greenfield (TAP142378 - YEMASSEE)
GreenfieldBeaufort County, South Carolina · SERC
At a glance
Greenfield (TAP142378 - YEMASSEE) is a greenfield datacenter candidate site in Beaufort County, South Carolina, scoring 55.8/100 DC Readiness — 27th of 37 scored sites in the county. Its nearest substation is TAP142378. It sits in the SERC grid region and the DOMINION ENERGY SOUTH CAROLINA, INC service territory, where interconnection has averaged 3.9 years from request to operation. GridCensus catalogs 300 MW of candidate capacity here.
Power & interconnection
Speed to power
Middle-of-the-pack interconnection conditions for this grid.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
Southeast, DC-friendly with active incentives and vertically-integrated utilities.
Incentive detail: Sales tax exemption on DC equipment; fee-in-lieu of property tax for $50M+ investments.
Site location
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How does Greenfield (TAP142378 - YEMASSEE) compare with other sites in Beaufort County?
Greenfield (TAP142378 - YEMASSEE) ranks 27th of 37 scored candidate sites in Beaufort County. Its 55.8/100 is roughly in line with the county average of 56.6. It is roughly in line with the South Carolina average of 57.1 and roughly in line with the national average of 53.2.
Against the South Carolina average, its strongest sub-score is power availability (50 vs 44) and its weakest is fiber connectivity (67 vs 71). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Greenfield (TAP142378 - YEMASSEE) to power, fiber and other datacenters?
The nearest mapped substation, TAP142378, is the closest grid connection point on record and operates at 230 kV. For connectivity, the nearest internet exchange facility is Cogent Fairfax at 39.3 miles. 7 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Cogent Fairfax, 39.3 miles away.
What are the flood, water and hazard risks at Greenfield (TAP142378 - YEMASSEE)?
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 Beaufort County "Relatively High".
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 Beaufort County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| TAP142379 | Substation-Adjacent | 230 kV | 300 MW | 3.9 yrs | 62.2 |
| BURTON | Substation-Adjacent | 230 kV | 300 MW | 3.9 yrs | 61.7 |
| SANTEE COOPER | Substation-Adjacent | 230 kV | 300 MW | 3.9 yrs | 61.2 |
| OZ Beaufort | Greenfield | — | — | 3.9 yrs | 59.4 |
| UNKNOWN151286 | Substation-Adjacent | 115 kV | 100 MW | 3.9 yrs | 57.9 |
| TAP151287 | Substation-Adjacent | 115 kV | 100 MW | 3.9 yrs | 57.9 |
| TAP154159 | Substation-Adjacent | 115 kV | 100 MW | 3.9 yrs | 57.9 |
| UNKNOWN154160 | Substation-Adjacent | 115 kV | 100 MW | 3.9 yrs | 57.8 |
Greenfield (TAP142378 - YEMASSEE): common questions
What is the DC Readiness score of Greenfield (TAP142378 - YEMASSEE)?
Greenfield (TAP142378 - YEMASSEE) scores 55.8/100 on the GridCensus DC Readiness scale, rated good. It ranks 27th of 37 scored sites in Beaufort County. The Beaufort County average is 56.6 and the South Carolina average is 57.1.
What is the nearest substation to Greenfield (TAP142378 - YEMASSEE)?
The nearest mapped substation is TAP142378, at 230 kV. GridCensus catalogs 300 MW of candidate capacity for the site.
Which electric utility serves Greenfield (TAP142378 - YEMASSEE)?
DOMINION ENERGY SOUTH CAROLINA, INC (investor owned) holds the retail service territory that contains the site; its holding company is SCANA CORP.
What grid region is Greenfield (TAP142378 - YEMASSEE) in?
Greenfield (TAP142378 - YEMASSEE) is in the SERC region. Projects interconnecting there have averaged a 3.9-year wait from queue request to operation.
Is Greenfield (TAP142378 - YEMASSEE) 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 (TAP142378 - YEMASSEE) from an internet exchange?
The nearest internet exchange facility is Cogent Fairfax, about 39.3 miles away; 7 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 (TAP142378 - YEMASSEE), Beaufort County, SC”, https://gridcensus.com/datacenter-sites/south-carolina/beaufort-county/greenfield-tap142378-yemassee-162d3ce0 (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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