EAST SPARTANBURG
SubstationSouth Carolina · DUKE ENERGY CAROLINAS, LLC
At a glance
EAST SPARTANBURG is an electric transmission substation in South Carolina, on DUKE ENERGY CAROLINAS, LLC's transmission network. It is classified as distribution (69–115 kv) and connects 9 transmission lines. 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 |
|---|---|---|---|---|
| #122294 | 100 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 3.3 mi |
| #128022 | 100 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 3.2 mi |
| #134025 | 100 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 3.2 mi |
| #134098 | 100 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 1.1 mi |
| #147401 | 100 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 3.6 mi |
| #144821 | 100 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 3.6 mi |
| #146005 | 100 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 3.3 mi |
| #147134 | 100 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 1.1 mi |
| #136882 | — | DUKE ENERGY CAROLINAS, LLC | — | 7.7 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of EAST SPARTANBURG, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN111316 | Substation-Adjacent | NC | Cleveland County | 500 kV | 1,000 MW | 5.3 yrs | 71.0 |
| UNKNOWN111199 | Substation-Adjacent | NC | Cleveland County | 500 kV | 1,000 MW | 5.3 yrs | 67.4 |
| PEACH VALLEY TIE | Substation-Adjacent | SC | Spartanburg County | 230 kV | 300 MW | 3.9 yrs | 65.9 |
| TIGER TIE | Substation-Adjacent | SC | Spartanburg County | 230 kV | 300 MW | 3.9 yrs | 65.8 |
| OZ Spartanburg | Greenfield | SC | Spartanburg | — | — | 3.9 yrs | 65.4 |
| EC Near Enoree Phase II Landfill Gas Recovery | Greenfield | SC | Greenville | — | — | 3.9 yrs | 65.0 |
| SHELBY TIE | Substation-Adjacent | NC | Cleveland County | 230 kV | 300 MW | 5.3 yrs | 64.2 |
| PACOLET TIE | Substation-Adjacent | SC | Cherokee County | 230 kV | 300 MW | 3.9 yrs | 63.3 |
How does EAST SPARTANBURG 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. 8 named substations in the state are in EAST SPARTANBURG's 69–114 kV band (15% of named stations). 44 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 EAST SPARTANBURG?
The 9 connected lines listed above are owned by DUKE ENERGY CAROLINAS, LLC. Line voltages range from 100 kV to 100 kV. Their combined recorded length is about 30.2 miles.
How do candidate sites near EAST SPARTANBURG score?
The 8 highest-scoring candidate sites within about 25 miles range from 63 to 71 on the 0–100 DC Readiness scale. They fall in Cleveland County, Spartanburg County, Spartanburg, Greenville. 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 EAST SPARTANBURG substation?
EAST SPARTANBURG has a maximum voltage of 100 kV. That places it in the 69–114 kV band. The median named US substation in this dataset is 115 kV, so EAST SPARTANBURG is below the national midpoint.
How many transmission lines connect to EAST SPARTANBURG substation?
9 transmission lines terminate at or pass through EAST SPARTANBURG in the HIFLD line data. The connected lines listed here run at 100 kV. Together the listed lines cover about 30.2 miles.
Who owns EAST SPARTANBURG substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at EAST SPARTANBURG belong to DUKE ENERGY CAROLINAS, LLC. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is EAST SPARTANBURG substation located?
EAST SPARTANBURG is in South Carolina at 34.9646, -81.9132. The datacenter candidate sites closest to it are in Cleveland County, Spartanburg County, Spartanburg.
Are there datacenter candidate sites near EAST SPARTANBURG substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of EAST SPARTANBURG. The highest-scoring is UNKNOWN111316 at 71/100. Across South Carolina, the average DC Readiness score is 57.1.
Other 100 kV substations in South Carolina
- LEE· 17 lines
- WYLIE HYDRO· 16 lines
- GREENVILLE· 12 lines
- BELTON· 7 lines
- BLACKSBURG· 5 lines
- INMAN· 4 lines
- EAST CAMPUS· 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, “EAST SPARTANBURG substation, South Carolina”, https://gridcensus.com/substations/south-carolina/east-spartanburg-9c3415fa (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 EAST SPARTANBURG 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.