Substation-Adjacent Datacenter Sites in South Carolina
At a glance
Parcels sited next to existing transmission substations. Co-location with a substation is the single strongest speed-to-power signal — interconnection distance is measured in feet, not miles.
Top substation-adjacent sites in South Carolina
| Site | Type | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|
| NEWPORT TIE | Substation-Adjacent | York County | 500 kV | 1,000 MW | 3.9 yrs | 71.6 |
| JEFFERIES STATION | Substation-Adjacent | Berkeley County | 230 kV | 300 MW | 3.9 yrs | 67.7 |
| UNKNOWN152835 | Substation-Adjacent | Richland County | 230 kV | 300 MW | 3.9 yrs | 67.7 |
| UNKNOWN117533 | Substation-Adjacent | Richland County | 230 kV | 300 MW | 3.9 yrs | 67.6 |
| UNKNOWN117127 | Substation-Adjacent | Fairfield County | 230 kV | 300 MW | 3.9 yrs | 67.5 |
| UNKNOWN121093 | Substation-Adjacent | Berkeley County | 230 kV | 300 MW | 3.9 yrs | 67.2 |
| UNKNOWN121163 | Substation-Adjacent | Berkeley County | 230 kV | 300 MW | 3.9 yrs | 67.1 |
| DEADEND167375 | Substation-Adjacent | Lexington County | 230 kV | 300 MW | 3.9 yrs | 67.0 |
| TAP150276 | Substation-Adjacent | York County | 230 kV | 300 MW | 3.9 yrs | 67.0 |
| CATAWBA 230KV SWITCHING STATION | Substation-Adjacent | York County | 230 kV | 300 MW | 3.9 yrs | 67.0 |
| UNKNOWN120969 | Substation-Adjacent | Charleston County | 230 kV | 300 MW | 3.9 yrs | 66.8 |
| UNKNOWN120968 | Substation-Adjacent | Charleston County | 230 kV | 300 MW | 3.9 yrs | 66.6 |
| UNKNOWN117827 | Substation-Adjacent | Richland County | 230 kV | 300 MW | 3.9 yrs | 66.6 |
| UNKNOWN120844 | Substation-Adjacent | Horry County | 230 kV | 300 MW | 3.9 yrs | 66.5 |
| DENNY TERRACE | Substation-Adjacent | Richland County | 230 kV | 300 MW | 3.9 yrs | 66.5 |
| UNKNOWN146834 | Substation-Adjacent | Horry County | 230 kV | 300 MW | 3.9 yrs | 66.3 |
| SHADY GROVE | Substation-Adjacent | Greenville County | 230 kV | 300 MW | 3.9 yrs | 66.3 |
| UNKNOWN120970 | Substation-Adjacent | Dorchester County | 230 kV | 300 MW | 3.9 yrs | 66.3 |
| CANADYS | Substation-Adjacent | Dorchester County | 230 kV | 300 MW | 3.9 yrs | 66.3 |
| UNKNOWN121689 | Substation-Adjacent | Richland County | 230 kV | 300 MW | 3.9 yrs | 66.3 |
| UNKNOWN117343 | Substation-Adjacent | Richland County | 230 kV | 300 MW | 3.9 yrs | 66.2 |
| UNKNOWN110410 | Substation-Adjacent | Oconee County | 500 kV | 1,000 MW | 3.9 yrs | 66.2 |
| UNKNOWN117831 | Substation-Adjacent | Lexington County | 230 kV | 300 MW | 3.9 yrs | 66.2 |
| UNKNOWN121119 | Substation-Adjacent | Charleston County | 230 kV | 300 MW | 3.9 yrs | 66.1 |
| UNKNOWN114800 | Substation-Adjacent | York County | 230 kV | 300 MW | 3.9 yrs | 66.1 |
How does South Carolina compare with other states for substation-adjacent sites?
With 1,124 sites, South Carolina ranks 11th of the 52 states that have any substation-adjacent candidate sites. Texas leads with 3,635. Nationally, substation-adjacent sites average 57.4/100 DC Readiness, above the 53.0 average across all site types. Across every site type, South Carolina averages 57.1, the 2nd-highest of 52 states, and its candidate sites face an average interconnection-queue wait of 3.9 years.
Where are the highest-scoring substation-adjacent sites in South Carolina?
The top 25 range from 71.6 to 66.1 on the 0–100 DC Readiness Score. They are concentrated in Richland County (6), York County (4), Berkeley County (3) and Charleston County (3). By grid region, 25 are in SERC.
County pages: Richland County · York County · Berkeley County · Charleston County
What power, fiber and flood exposure do these substation-adjacent sites have?
Of the top 25 substation-adjacent sites in South Carolina, 25 have a recorded nearest-substation voltage, with a median of 230 kV; for 25 that substation is rated 230 kV or higher. Their counties have a median of 11 fixed fiber broadband providers in FCC data. The median distance to the nearest internet exchange facility is 9 km. The median interconnection-queue wait in their markets is 3.9 years. None of the 5 with a mapped FEMA flood zone sits in a high-risk (A or V) zone.
Frequently asked questions
How many substation-adjacent datacenter sites are in South Carolina?
GridCensus catalogs 1,124 substation-adjacent datacenter candidate sites in South Carolina, 3% of the national total for this type (11th of 52 states).
What is a substation-adjacent datacenter site?
Parcels sited next to existing transmission substations. Co-location with a substation is the single strongest speed-to-power signal — interconnection distance is measured in feet, not miles.
What is the best substation-adjacent datacenter site in South Carolina?
By DC Readiness Score, NEWPORT TIE in York County ranks first at 71.6/100, followed by JEFFERIES STATION in Berkeley County at 67.7.
Which South Carolina counties have the best substation-adjacent sites?
The top 25 substation-adjacent sites in South Carolina are concentrated in Richland County (6), York County (4), Berkeley County (3) and Charleston County (3).
How does South Carolina score for datacenters overall?
All 2,061 scored sites in South Carolina average 57.1/100 DC Readiness, the 2nd-highest of 52 states, against a national average of 53.0.
More on substation-adjacent sites and South Carolina
Substation-Adjacent sites in other states
- Substation-Adjacent sites in Texas· 3,635 sites
- Substation-Adjacent sites in California· 1,573 sites
- Substation-Adjacent sites in Florida· 1,539 sites
- Substation-Adjacent sites in Georgia· 1,530 sites
- Substation-Adjacent sites in Oklahoma· 1,344 sites
- Substation-Adjacent sites in Washington· 1,343 sites
- Substation-Adjacent sites in Minnesota· 1,270 sites
- Substation-Adjacent sites in Kentucky· 1,261 sites
Dataset updated . Screening estimates derived from public data sources.
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 November 13, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Substation-Adjacent datacenter sites in South Carolina”, https://gridcensus.com/site-types/substation/south-carolina (data as of November 13, 2026).
Go deeper than the public screen
Every site and score for Substation-Adjacent sites in South Carolina is free to browse. Pro adds Watchtower on 25 sites, alerts when new candidate sites, datacenters or interconnection-queue requests appear in your markets, score and capacity history, and CSV export. Enterprise adds team seats, weekly data files for all 147,272 sites, the REST API and an MCP server for AI tools.