TAP145903
SubstationNorth Carolina · DUKE ENERGY CAROLINAS, LLC
At a glance
TAP145903 is an electric transmission substation in North Carolina, on DUKE ENERGY CAROLINAS, LLC's transmission network. It is classified as sub-transmission (138 kv) and connects 3 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 |
|---|---|---|---|---|
| #100088 | 161 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 12.8 mi |
| #113305 | 161 kV | — | IN SERVICE | 2.1 mi |
| #122651 | 161 kV | DUKE ENERGY CAROLINAS, LLC | IN SERVICE | 25.8 mi |
| #129920 | 161 kV | — | IN SERVICE | 0.0 mi |
| #132108 | 161 kV | — | IN SERVICE | 10.5 mi |
| #137631 | 161 kV | — | IN SERVICE | 7.6 mi |
| #171554 | 161 kV | — | IN SERVICE | 4.1 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP145903, 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 |
|---|---|---|---|---|---|---|---|
| JOCASSEE TIE | Substation-Adjacent | SC | Pickens County | 500 kV | 1,000 MW | 3.9 yrs | 65.1 |
| UNKNOWN152501 | Substation-Adjacent | SC | Transylvania County | 500 kV | 1,000 MW | 3.9 yrs | 64.9 |
| TUCKASEGEE TIE | Substation-Adjacent | NC | Jackson County | 230 kV | 300 MW | 5.3 yrs | 63.6 |
| UNKNOWN110047 | Substation-Adjacent | NC | Jackson County | 161 kV | 100 MW | 5.3 yrs | 62.2 |
| TAP145904 | Substation-Adjacent | NC | Jackson County | 161 kV | 100 MW | 5.3 yrs | 62.2 |
| UNKNOWN110046 | Substation-Adjacent | NC | Jackson County | 161 kV | 100 MW | 5.3 yrs | 62.2 |
| WEBSTER TIE | Substation-Adjacent | NC | Jackson County | 161 kV | 100 MW | 5.3 yrs | 62.0 |
| UNKNOWN169765 | Substation-Adjacent | NC | Jackson County | 161 kV | 100 MW | 5.3 yrs | 61.7 |
Who owns the transmission lines at TAP145903?
The 7 connected lines listed above are owned by DUKE ENERGY CAROLINAS, LLC. Line voltages range from 161 kV to 161 kV. Their combined recorded length is about 62.9 miles.
How do candidate sites near TAP145903 score?
The 8 highest-scoring candidate sites within about 25 miles range from 62 to 65 on the 0–100 DC Readiness scale. They fall in Pickens County, Transylvania County, Jackson 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 TAP145903 substation?
TAP145903 has a maximum voltage of 161 kV. That places it in the 115–229 kV band. The median named US substation in this dataset is 115 kV, so TAP145903 is above the national midpoint.
How many transmission lines connect to TAP145903 substation?
3 transmission lines terminate at or pass through TAP145903 in the HIFLD line data. The connected lines listed here run at 161 kV. Together the listed lines cover about 62.9 miles.
Who owns TAP145903 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP145903 belong to DUKE ENERGY CAROLINAS, LLC. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP145903 substation located?
TAP145903 is in North Carolina at 35.3421, -83.2448. The datacenter candidate sites closest to it are in Pickens County, Transylvania County, Jackson County.
Are there datacenter candidate sites near TAP145903 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP145903. The highest-scoring is JOCASSEE TIE at 65/100. Across North Carolina, the average DC Readiness score is 55.1.
More in North Carolina
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, “TAP145903 substation, North Carolina”, https://gridcensus.com/substations/north-carolina/tap145903-819860fa (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 TAP145903 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.