TAP143309
SubstationFlorida · DUKE ENERGY FLORIDA, LLC
At a glance
TAP143309 is an electric transmission substation in Florida, on DUKE ENERGY FLORIDA, LLC's transmission network. It is classified as sub-transmission (115 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 |
|---|---|---|---|---|
| #127370 | 115 kV | DUKE ENERGY FLORIDA, LLC | IN SERVICE | 6.1 mi |
| #128747 | 115 kV | DUKE ENERGY FLORIDA, LLC | IN SERVICE | 5.0 mi |
| #130938 | 115 kV | DUKE ENERGY FLORIDA, INC | IN SERVICE | 0.4 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP143309, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN120742 | Substation-Adjacent | FL | Leon County | 230 kV | 300 MW | 3.7 yrs | 69.0 |
| UNKNOWN120743 | Substation-Adjacent | FL | Leon County | 230 kV | 300 MW | 3.7 yrs | 66.7 |
| LINE 17 | Substation-Adjacent | FL | Leon County | 230 kV | 300 MW | 3.7 yrs | 65.2 |
| UNKNOWN162146 | Substation-Adjacent | FL | Leon County | 230 kV | 300 MW | 3.7 yrs | 65.1 |
| OZ Leon | Greenfield | FL | Leon | — | — | 3.7 yrs | 63.0 |
| UNKNOWN107686 | Substation-Adjacent | FL | Leon County | 115 kV | 100 MW | 3.7 yrs | 62.5 |
| UNKNOWN107679 | Substation-Adjacent | FL | Leon County | 115 kV | 100 MW | 3.7 yrs | 62.3 |
| TAP143306 | Substation-Adjacent | FL | Leon County | 115 kV | 100 MW | 3.7 yrs | 61.4 |
Who owns the transmission lines at TAP143309?
The 3 connected lines listed above are owned by DUKE ENERGY FLORIDA, LLC, DUKE ENERGY FLORIDA, INC. Line voltages range from 115 kV to 115 kV. Their combined recorded length is about 11.5 miles.
How do candidate sites near TAP143309 score?
The 8 highest-scoring candidate sites within about 25 miles range from 61 to 69 on the 0–100 DC Readiness scale. They fall in Leon County, Leon. The Florida average across 4,344 scored sites is 56. 1,539 of those Florida sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is TAP143309 substation?
TAP143309 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 TAP143309 is at the national midpoint.
How many transmission lines connect to TAP143309 substation?
3 transmission lines terminate at or pass through TAP143309 in the HIFLD line data. The connected lines listed here run at 115 kV. Together the listed lines cover about 11.5 miles.
Who owns TAP143309 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP143309 belong to DUKE ENERGY FLORIDA, LLC, and others to DUKE ENERGY FLORIDA, INC. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP143309 substation located?
TAP143309 is in Florida at 30.4048, -84.0208. The datacenter candidate sites closest to it are in Leon County, Leon.
Are there datacenter candidate sites near TAP143309 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP143309. The highest-scoring is UNKNOWN120742 at 69/100. Across Florida, the average DC Readiness score is 56.
More in Florida
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, “TAP143309 substation, Florida”, https://gridcensus.com/substations/florida/tap143309-aeb9c111 (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 TAP143309 substation, Florida 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.