MCCARTHY
SubstationFlorida · FLORIDA POWER & LIGHT CO
MCCARTHY is an electric transmission substation in Florida, operated by FLORIDA POWER & LIGHT CO. It is classified as sub-transmission (138 kv) and connects 4 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 |
|---|---|---|---|---|
| #18057 | 138 kV | FLORIDA POWER & LIGHT CO | IN SERVICE | 13.5 mi |
| #18764 | 138 kV | — | IN SERVICE | 3.6 mi |
| #37899 | 138 kV | — | IN SERVICE | 3.6 mi |
| #47993 | 138 kV | — | IN SERVICE | 10.6 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of MCCARTHY, 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 |
|---|---|---|---|---|---|---|---|
| CORBETT | Substation-Adjacent | FL | Palm Beach County | 500 kV | 1,000 MW | 3.6 yrs | 71.1 |
| Greenfield (ANDYTOWN - ORANGE RIVER) | Greenfield | FL | Hendry County | 500 kV | 1,000 MW | 3.6 yrs | 65.1 |
| Greenfield (ANDYTOWN - ORANGE RIVER) | Greenfield | FL | Broward County | 500 kV | 1,000 MW | 3.6 yrs | 64.2 |
| HICPOCHEE | Substation-Adjacent | FL | Hendry County | 138 kV | 100 MW | 3.6 yrs | 63.6 |
| Greenfield (ANDYTOWN - ORANGE RIVER) | Greenfield | FL | Broward County | 500 kV | 1,000 MW | 3.6 yrs | 63.4 |
| SOUTH BAY | Substation-Adjacent | FL | Palm Beach County | 138 kV | 100 MW | 3.6 yrs | 63.1 |
| UNKNOWN108515 | Substation-Adjacent | FL | Hendry County | 138 kV | 100 MW | 3.6 yrs | 62.6 |
| CITY OF CLEWISTON | Substation-Adjacent | FL | Hendry County | 138 kV | 100 MW | 3.6 yrs | 62.4 |
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 MCCARTHY 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.