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Gridcensus

Greenfield (WINYAH STATION - JEFFERIES STA)

Greenfield

Berkeley, South Carolina · SERC

DC Readiness
56.8
Good / 100

At a glance

Greenfield (WINYAH STATION - JEFFERIES STA) is a greenfield datacenter candidate site in Berkeley, South Carolina, scoring 56.8/100 DC Readiness — 33rd of 49 scored sites in the county. Its nearest substation is WINYAH STATION. It sits in the SERC grid region and the SOUTH CAROLINA PUBLIC SERVICE AUTHORITY service territory, where interconnection has averaged 3.9 years from request to operation. GridCensus catalogs 300 MW of candidate capacity here.

Power & interconnection

Nearest substationWINYAH STATION
Substation voltage230 kV
Available capacity300 MW
UtilitySOUTH CAROLINA PUBLIC SERVICE AUTHORITYstatefavorable to large load · terms ≥ 100 MW

Speed to power

Interconnection outlookModerate
≈ 4.7 yrs typical interconnection wait

Middle-of-the-pack interconnection conditions for this grid.

ISO / RTO regionSERC
Queue depth1
Avg queue wait3.9 yrs
Recent queue wait4.7 yrs
Completion rate15%
Withdrawal rate85%

Connectivity

Nearest IXPDartPoints Charleston, SC - CHS1
IXP distance27.4 mi
Fiber providers8
Fiber coverage69.2%

Site characteristics

Site typeGreenfield

Risk & environment

Environmental constraintNone (0/100)
Water stress (WRI)Low
Wetlands (NWI)—
Critical habitat—
Superfund nearby—
Hazard sub-score60/100

Location context

Nearest datacenterGoogle
DC distance19.6 mi
County hazard (FEMA NRI)Relatively High (40)
DC tax incentiveYes (sales_tax_exemption)
Commercial electricity10.24¢/kWh
Industrial electricity8.55¢/kWh
Cooling degree days2,000
Heating degree days2,400
Land price / acre$3,279

Regulatory climate

Favorablestate posture · as of 2026-08

Southeast, DC-friendly with active incentives and vertically-integrated utilities.

DC tax incentiveYes

Incentive detail: Sales tax exemption on DC equipment; fee-in-lieu of property tax for $50M+ investments.

Site location

◆ Loading map…
≥ 7560–7540–60≤ 40
This site + 8 nearby

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How does Greenfield (WINYAH STATION - JEFFERIES STA) compare with other sites in Berkeley?

Greenfield (WINYAH STATION - JEFFERIES STA) ranks 33rd of 49 scored candidate sites in Berkeley. Its 56.8/100 is roughly in line with the county average of 59.2. 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 (68 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 (WINYAH STATION - JEFFERIES STA) to power, fiber and other datacenters?

The nearest mapped substation, WINYAH STATION, is the closest grid connection point on record and operates at 230 kV. For connectivity, the nearest internet exchange facility is DartPoints Charleston, SC - CHS1 at 27.4 miles. 8 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is Google, 19.6 miles away.

What are the flood, water and hazard risks at Greenfield (WINYAH STATION - JEFFERIES STA)?

At the county level, FEMA's National Risk Index rates Berkeley "Relatively High".

Full DC Readiness breakdown

All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.

Power availability20%
50
Speed to power20%
59
Fiber connectivity12%
68
Energy cost10%
50
Water risk7%
84
Natural hazard6%
60
Buildability7%
50
Labor market4%
50
DC cluster4%
60
Land / acreage3%
49
Construction cost3%
50
Gas pipeline2%
10
Tax incentive1%
100
Climate / cooling1%
25

Nearby comparable sites

Other scored datacenter candidate sites in Berkeley, ranked by DC Readiness.

Sites near Greenfield (WINYAH STATION - JEFFERIES STA)
SiteTypeVoltageCapacityQueue waitScore
JEFFERIES STATIONSubstation-Adjacent230 kV300 MW3.9 yrs67.7
UNKNOWN121093Substation-Adjacent230 kV300 MW3.9 yrs67.2
UNKNOWN121163Substation-Adjacent230 kV300 MW3.9 yrs67.1
UNKNOWN123040Substation-Adjacent230 kV300 MW3.9 yrs65.9
UNKNOWN121114Substation-Adjacent230 kV300 MW3.9 yrs65.8
UNKNOWN120971Substation-Adjacent230 kV300 MW3.9 yrs65.8
UNKNOWN117353Substation-Adjacent230 kV300 MW3.9 yrs63.5
TAP142364Substation-Adjacent115 kV100 MW3.9 yrs62.8

Greenfield (WINYAH STATION - JEFFERIES STA): common questions

What is the DC Readiness score of Greenfield (WINYAH STATION - JEFFERIES STA)?

Greenfield (WINYAH STATION - JEFFERIES STA) scores 56.8/100 on the GridCensus DC Readiness scale, rated good. It ranks 33rd of 49 scored sites in Berkeley. The Berkeley average is 59.2 and the South Carolina average is 57.1.

What is the nearest substation to Greenfield (WINYAH STATION - JEFFERIES STA)?

The nearest mapped substation is WINYAH STATION, at 230 kV. GridCensus catalogs 300 MW of candidate capacity for the site.

Which electric utility serves Greenfield (WINYAH STATION - JEFFERIES STA)?

SOUTH CAROLINA PUBLIC SERVICE AUTHORITY (state) holds the retail service territory that contains the site.

What grid region is Greenfield (WINYAH STATION - JEFFERIES STA) in?

Greenfield (WINYAH STATION - JEFFERIES STA) is in the SERC region. Projects interconnecting there have averaged a 3.9-year wait from queue request to operation.

How far is Greenfield (WINYAH STATION - JEFFERIES STA) from an internet exchange?

The nearest internet exchange facility is DartPoints Charleston, SC - CHS1, about 27.4 miles away; 8 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 (WINYAH STATION - JEFFERIES STA), Berkeley, SC”, https://gridcensus.com/datacenter-sites/south-carolina/berkeley/greenfield-winyah-station-jefferies-sta-dbf149d2 (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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