PLASTER CITY
SubstationCalifornia · IMPERIAL IRRIGATION DISTRICT
At a glance
PLASTER CITY is an electric transmission substation in California, on IMPERIAL IRRIGATION DISTRICT's transmission network. It is classified as unclassified and connects 0 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 |
|---|---|---|---|---|
| #304612 | 35 kV | IMPERIAL IRRIGATION DISTRICT | IN SERVICE | 4.8 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of PLASTER CITY, 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 |
|---|---|---|---|---|---|---|---|
| EAST COUNTY | Substation-Adjacent | CA | San Diego County | 500 kV | 1,000 MW | 7.6 yrs | 56.7 |
| IMPERIAL VALLEY | Substation-Adjacent | CA | Imperial County | 500 kV | 1,000 MW | 7.6 yrs | 55.0 |
| IMPERIAL VALLEY | Substation-Adjacent | CA | Imperial County | 500 kV | 1,000 MW | 7.6 yrs | 54.6 |
| Heber Geothermal | Brownfield | CA | Imperial County | 66 kV | 59 MW | 7.6 yrs | 54.3 |
| UNKNOWN301886 | Substation-Adjacent | CA | Imperial County | 345 kV | 600 MW | 7.6 yrs | 53.2 |
| EL CENTRO | Substation-Adjacent | CA | Imperial County | 230 kV | 300 MW | 7.6 yrs | 51.6 |
| UNKNOWN308676 | Substation-Adjacent | CA | Imperial County | 230 kV | 300 MW | 7.6 yrs | 50.3 |
| Black Rock II | Brownfield | CA | Imperial County | 66 kV | 70 MW | 7.6 yrs | 49.5 |
Who owns the transmission lines at PLASTER CITY?
The 1 connected line listed above is owned by IMPERIAL IRRIGATION DISTRICT. Line voltages range from 35 kV to 35 kV. Their combined recorded length is about 4.8 miles.
How do candidate sites near PLASTER CITY score?
The 8 highest-scoring candidate sites within about 25 miles range from 50 to 57 on the 0–100 DC Readiness scale. They fall in San Diego County, Imperial County. The California average across 8,490 scored sites is 45.4. 1,573 of those California sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
How many transmission lines connect to PLASTER CITY substation?
0 transmission lines terminate at or pass through PLASTER CITY in the HIFLD line data. The connected lines listed here run at 35 kV. Together the listed lines cover about 4.8 miles.
Who owns PLASTER CITY substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at PLASTER CITY belong to IMPERIAL IRRIGATION DISTRICT. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is PLASTER CITY substation located?
PLASTER CITY is in California at 32.7905, -115.8538. The datacenter candidate sites closest to it are in San Diego County, Imperial County.
Are there datacenter candidate sites near PLASTER CITY substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of PLASTER CITY. The highest-scoring is EAST COUNTY at 57/100. Across California, the average DC Readiness score is 45.4.
More in California
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, “PLASTER CITY substation, California”, https://gridcensus.com/substations/california/plaster-city-17a296de (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 PLASTER CITY substation, California 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.