ST. JOHNS
SubstationFlorida · FLORIDA POWER & LIGHT CO
ST. JOHNS is an electric transmission substation in Florida, operated by FLORIDA POWER & LIGHT CO. 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #61963 | 230 kV | FLORIDA POWER & LIGHT CO | IN SERVICE | 11.2 mi |
| #2836 | 115 kV | FLORIDA POWER & LIGHT CO | IN SERVICE | 8.3 mi |
| #24488 | 115 kV | FLORIDA POWER & LIGHT CO | IN SERVICE | 3.7 mi |
| #28843 | 115 kV | FLORIDA POWER & LIGHT CO | IN SERVICE | 0.3 mi |
| #49319 | 115 kV | FLORIDA POWER & LIGHT CO | IN SERVICE | 2.9 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of ST. JOHNS, 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 |
|---|---|---|---|---|---|---|---|
| BARTRAM | Substation-Adjacent | FL | Duval County | 230 kV | 300 MW | 3.6 yrs | 75.6 |
| SWITZERLAND | Substation-Adjacent | FL | Clay County | 230 kV | 300 MW | 3.6 yrs | 75.2 |
| UNKNOWN120521 | Substation-Adjacent | FL | Duval County | 230 kV | 300 MW | 3.6 yrs | 75.0 |
| UNKNOWN120519 | Substation-Adjacent | FL | Duval County | 230 kV | 300 MW | 3.6 yrs | 74.1 |
| SPRINGBANK | Substation-Adjacent | FL | Clay County | 230 kV | 300 MW | 3.6 yrs | 73.4 |
| POWERS | Substation-Adjacent | FL | Duval County | 138 kV | 100 MW | 3.6 yrs | 71.9 |
| UNKNOWN121605 | Substation-Adjacent | FL | Duval County | 138 kV | 100 MW | 3.6 yrs | 71.3 |
| MILL CREEK | Substation-Adjacent | FL | St. Johns County | 230 kV | 300 MW | 3.6 yrs | 71.1 |
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 ST. JOHNS 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.