HOLDER
SubstationFlorida · DUKE ENERGY FLORIDA, INC
HOLDER is an electric transmission substation in Florida, operated by DUKE ENERGY FLORIDA, INC. It is classified as high-voltage (230 kv) and connects 5 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 & operation
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #23129 | 230 kV | DUKE ENERGY FLORIDA, LLC | IN SERVICE | 11.4 mi |
| #24290 | 230 kV | DUKE ENERGY FLORIDA, INC | IN SERVICE | 16.8 mi |
| #43681 | 230 kV | DUKE ENERGY FLORIDA, LLC | IN SERVICE | 11.3 mi |
| #50499 | 230 kV | DUKE ENERGY FLORIDA, INC | IN SERVICE | 16.9 mi |
| #22038 | 115 kV | DUKE ENERGY FLORIDA, LLC | IN SERVICE | 3.5 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of HOLDER, 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 |
|---|---|---|---|---|---|---|---|
| BROOKRIDGE | Substation-Adjacent | FL | Hernando County | 500 kV | 1,000 MW | 3.6 yrs | 75.5 |
| CRYSTAL RIVER | Substation-Adjacent | FL | Citrus County | 500 kV | 1,000 MW | 3.6 yrs | 68.3 |
| Greenfield (CRYSTAL RIVER - CENTRAL FLORID) | Greenfield | FL | Citrus County | 500 kV | 1,000 MW | 3.6 yrs | 67.6 |
| ANDERSON | Substation-Adjacent | FL | Sumter County | 230 kV | 300 MW | 3.6 yrs | 67.3 |
| TAP155704 | Substation-Adjacent | FL | Citrus County | 230 kV | 300 MW | 3.6 yrs | 67.2 |
| TWIN COUNTY RANCH | Substation-Adjacent | FL | Hernando County | 115 kV | 100 MW | 3.6 yrs | 67.0 |
| CRYSTAL RIVER EAST | Substation-Adjacent | FL | Citrus County | 230 kV | 300 MW | 3.6 yrs | 66.9 |
| Greenfield (BROOKRIDGE - CRYSTAL RIVER) | Greenfield | FL | Hernando County | 500 kV | 1,000 MW | 3.6 yrs | 66.0 |
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
This page shows a public slice of the GridCensus dataset for HOLDER substation, Florida. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.