HARRISBURG
SubstationNorth Carolina · DUKE ENERGY CAROLINAS, LLC
At a glance
HARRISBURG is an electric transmission substation in North Carolina, on DUKE ENERGY CAROLINAS, LLC's transmission network. It is classified as high-voltage (230 kv) and connects 16 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 |
|---|---|---|---|---|
| #113357 | 230 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 19.2 mi |
| #137506 | 230 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 9.5 mi |
| #108731 | 230 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 19.2 mi |
| #140781 | 230 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 9.5 mi |
| #141748 | 230 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 21.5 mi |
| #112572 | 230 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 21.5 mi |
| #115273 | 100 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 4.3 mi |
| #121753 | 100 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 4.3 mi |
| #112072 | 100 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 10.3 mi |
| #102705 | 100 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 10.3 mi |
| #167048 | — | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 5.9 mi |
| #114584 | — | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 3.3 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of HARRISBURG, 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 |
|---|---|---|---|---|---|---|---|
| ALLEN | Substation-Adjacent | NC | Mecklenburg County | 230 kV | 300 MW | 5.3 yrs | 69.9 |
| MCGUIRE | Substation-Adjacent | NC | Mecklenburg County | 500 kV | 1,000 MW | 5.3 yrs | 69.8 |
| UNKNOWN112337 | Substation-Adjacent | NC | Mecklenburg County | 230 kV | 300 MW | 5.3 yrs | 69.2 |
| UNKNOWN114635 | Substation-Adjacent | NC | Mecklenburg County | 230 kV | 300 MW | 5.3 yrs | 67.3 |
| WOODLAWN | Substation-Adjacent | NC | Mecklenburg County | 230 kV | 300 MW | 5.3 yrs | 67.3 |
| TAP150276 | Substation-Adjacent | SC | York County | 230 kV | 300 MW | 3.9 yrs | 67.0 |
| CATAWBA 230KV SWITCHING STATION | Substation-Adjacent | SC | York County | 230 kV | 300 MW | 3.9 yrs | 67.0 |
| UNKNOWN114701 | Substation-Adjacent | NC | Rowan County | 230 kV | 300 MW | 5.3 yrs | 66.4 |
How does HARRISBURG compare with other substations in North Carolina?
North Carolina has 3,209 substation records in HIFLD, of which 106 carry a station name; the rest are unnamed tap points, risers and line ends. 54 named substations in the state are in HARRISBURG's 230–344 kV band (51% of named stations). 10 sit in a higher band. 10 named substations in North 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 HARRISBURG?
The 12 connected lines listed above are owned by DUKE ENERGY CAROLINAS, LLC. Line voltages range from 100 kV to 230 kV. Their combined recorded length is about 138.8 miles.
How do candidate sites near HARRISBURG score?
The 8 highest-scoring candidate sites within about 25 miles range from 66 to 70 on the 0–100 DC Readiness scale. They fall in Mecklenburg County, York County, Rowan County. The North Carolina average across 2,778 scored sites is 55.1. 1,087 of those North Carolina sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is HARRISBURG substation?
HARRISBURG has a maximum voltage of 230 kV. That places it in the 230–344 kV band. The median named US substation in this dataset is 115 kV, so HARRISBURG is above the national midpoint.
How many transmission lines connect to HARRISBURG substation?
16 transmission lines terminate at or pass through HARRISBURG in the HIFLD line data. The connected lines listed here run at 230 kV, 100 kV. Together the listed lines cover about 138.8 miles.
Who owns HARRISBURG substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at HARRISBURG belong to DUKE ENERGY CAROLINAS, LLC. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is HARRISBURG substation located?
HARRISBURG is in North Carolina at 35.3130, -80.6924. The datacenter candidate sites closest to it are in Mecklenburg County, York County, Rowan County.
Are there datacenter candidate sites near HARRISBURG substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of HARRISBURG. The highest-scoring is ALLEN at 70/100. Across North Carolina, the average DC Readiness score is 55.1.
Other 230 kV substations in North Carolina
- LONGVIEW· 21 lines
- CLIFFSIDE· 18 lines
- PLEASANT GARDEN· 18 lines
- LEE· 17 lines
- MITCHELL RIVER· 17 lines
- ENO· 16 lines
- MARSHALL STEAM STATION· 16 lines
- ROXBORO PLANT STATION· 16 lines
- All named substations in North Carolina· 106 stations
- Datacenter candidate sites in North Carolina· 2,778 sites
- Brownfield and retired plant sites in North 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, “HARRISBURG substation, North Carolina”, https://gridcensus.com/substations/north-carolina/harrisburg-b21c11a5 (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 HARRISBURG substation, North 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.