KEY WEST DIESEL
SubstationFlorida
At a glance
KEY WEST DIESEL is an electric transmission substation in Florida. It is classified as unclassified and connects 2 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
No owner is recorded for the lines that connect here.
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #119882 | — | — | IN SERVICE | 1.7 mi |
| #127214 | — | — | IN SERVICE | 1.3 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of KEY WEST DIESEL, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN120062 | Substation-Adjacent | FL | Monroe County | 138 kV | 100 MW | 3.7 yrs | 53.1 |
| KENNEDY DRIVE | Substation-Adjacent | FL | Monroe County | 138 kV | 100 MW | 3.7 yrs | 53.1 |
| TAP150879 | Substation-Adjacent | FL | Monroe County | 138 kV | 100 MW | 3.7 yrs | 53.1 |
| EC Near Cudjoe | Greenfield | FL | Monroe | — | — | 3.7 yrs | 52.3 |
| KEY WEST | Substation-Adjacent | FL | Monroe County | 138 kV | 100 MW | 3.7 yrs | 52.2 |
| UNKNOWN125212 | Substation-Adjacent | FL | Monroe County | 138 kV | 100 MW | 3.7 yrs | 51.9 |
| EC Near Stock Island | Greenfield | FL | Monroe | — | — | 3.7 yrs | 50.7 |
| EC Near Stock Island | Greenfield | FL | Monroe | — | — | 3.7 yrs | 49.4 |
How do candidate sites near KEY WEST DIESEL score?
The 8 highest-scoring candidate sites within about 25 miles range from 49 to 53 on the 0–100 DC Readiness scale. They fall in Monroe County, Monroe. 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
How many transmission lines connect to KEY WEST DIESEL substation?
2 transmission lines terminate at or pass through KEY WEST DIESEL in the HIFLD line data. Together the listed lines cover about 3 miles.
Where is KEY WEST DIESEL substation located?
KEY WEST DIESEL is in Florida at 24.5512, -81.8048. The datacenter candidate sites closest to it are in Monroe County, Monroe.
Are there datacenter candidate sites near KEY WEST DIESEL substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of KEY WEST DIESEL. The highest-scoring is UNKNOWN120062 at 53/100. 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, “KEY WEST DIESEL substation, Florida”, https://gridcensus.com/substations/florida/key-west-diesel-a02d4238 (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 KEY WEST DIESEL 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.