CIRCLE DRIVE
SubstationSouth Carolina · SOUTH CAROLINA ELECTRIC&GAS COMPANY
At a glance
CIRCLE DRIVE is an electric transmission substation in South Carolina, on SOUTH CAROLINA ELECTRIC&GAS COMPANY's transmission network. It is classified as sub-transmission (115 kv) and connects 1 transmission line. Substation proximity is one of the strongest speed-to-power signals for siting a datacenter — interconnection distance to an energized, high-voltage bus is often the binding constraint on time-to-energization.
Voltage & classification
Ownership
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #164203 | 115 kV | SOUTH CAROLINA ELECTRIC&GAS COMPANY | IN SERVICE | 0.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of CIRCLE DRIVE, ranked by DC Readiness. Sites this close to an energized substation carry a strong speed-to-power advantage.
| Site | Type | State | County | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|---|---|
| UNKNOWN152835 | Substation-Adjacent | SC | Richland County | 230 kV | 300 MW | 3.9 yrs | 67.7 |
| UNKNOWN117533 | Substation-Adjacent | SC | Richland County | 230 kV | 300 MW | 3.9 yrs | 67.6 |
| UNKNOWN117127 | Substation-Adjacent | SC | Fairfield County | 230 kV | 300 MW | 3.9 yrs | 67.5 |
| DEADEND167375 | Substation-Adjacent | SC | Lexington County | 230 kV | 300 MW | 3.9 yrs | 67.0 |
| UNKNOWN117827 | Substation-Adjacent | SC | Richland County | 230 kV | 300 MW | 3.9 yrs | 66.6 |
| DENNY TERRACE | Substation-Adjacent | SC | Richland County | 230 kV | 300 MW | 3.9 yrs | 66.5 |
| UNKNOWN121689 | Substation-Adjacent | SC | Richland County | 230 kV | 300 MW | 3.9 yrs | 66.3 |
| UNKNOWN117831 | Substation-Adjacent | SC | Lexington County | 230 kV | 300 MW | 3.9 yrs | 66.2 |
How does CIRCLE DRIVE compare with other substations in South Carolina?
South Carolina has 2,476 substation records in HIFLD, of which 54 carry a station name; the rest are unnamed tap points, risers and line ends. 9 named substations in the state are in CIRCLE DRIVE's 115–229 kV band (17% of named stations). 35 sit in a higher band. 2 named substations in South Carolina operate at 345 kV or above. The highest voltage recorded in the state is 500 kV, and the state median is 230 kV.
Who owns the transmission lines at CIRCLE DRIVE?
The 1 connected line listed above is owned by SOUTH CAROLINA ELECTRIC&GAS COMPANY. Line voltages range from 115 kV to 115 kV. Their combined recorded length is about 0 miles.
How do candidate sites near CIRCLE DRIVE score?
The 8 highest-scoring candidate sites within about 25 miles range from 66 to 68 on the 0–100 DC Readiness scale. They fall in Richland County, Fairfield County, Lexington County. The South Carolina average across 2,061 scored sites is 57.1. 1,124 of those South Carolina sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is CIRCLE DRIVE substation?
CIRCLE DRIVE has a maximum voltage of 115 kV. That places it in the 115–229 kV band. The median named US substation in this dataset is 115 kV, so CIRCLE DRIVE is at the national midpoint.
How many transmission lines connect to CIRCLE DRIVE substation?
1 transmission line terminate at or pass through CIRCLE DRIVE in the HIFLD line data. The connected lines listed here run at 115 kV. Together the listed lines cover about 0 miles.
Who owns CIRCLE DRIVE substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at CIRCLE DRIVE belong to SOUTH CAROLINA ELECTRIC&GAS COMPANY. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is CIRCLE DRIVE substation located?
CIRCLE DRIVE is in South Carolina at 34.0379, -80.9801. The datacenter candidate sites closest to it are in Richland County, Fairfield County, Lexington County.
Are there datacenter candidate sites near CIRCLE DRIVE substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of CIRCLE DRIVE. The highest-scoring is UNKNOWN152835 at 68/100. Across South Carolina, the average DC Readiness score is 57.1.
Other 115 kV substations in South Carolina
- CAMPOBELLO· 12 lines
- GAFFNEY· 10 lines
- KONIG· 7 lines
- SANDY RUN· 6 lines
- BLYTHEWOOD SWITCHING STATION· 3 lines
- JONES ROAD #30· 2 lines
- SOCASTEE STATION # 10· 1 lines
- THOMAS ISLAND· 1 lines
- All named substations in South Carolina· 54 stations
- Datacenter candidate sites in South Carolina· 2,061 sites
- Brownfield and retired plant sites in South Carolina
- Substations by state
About this data
Source: HIFLD Electric Substations and Transmission Lines (U.S. Department of Homeland Security), as published June 29, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “CIRCLE DRIVE substation, South Carolina”, https://gridcensus.com/substations/south-carolina/circle-drive-562a41e1 (data as of June 29, 2026).
Dataset updated . Screening estimates derived from public data sources.
Substation attributes are derived from public HIFLD / EIA infrastructure data and may lag real-world upgrades or retirements. Voltage and connected-line counts are screening figures — confirm available capacity and interconnection terms directly with the operating utility and ISO.
Go deeper than the public screen
Every site and score for CIRCLE DRIVE substation, 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.