TAP302772
SubstationCalifornia · SAN DIEGO GAS & ELECTRIC
At a glance
TAP302772 is an electric transmission substation in California, on SAN DIEGO GAS & ELECTRIC's transmission network. It is classified as distribution (69–115 kv) and connects 3 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 |
|---|---|---|---|---|
| #303069 | 69 kV | SAN DIEGO GAS & ELECTRIC | IN SERVICE | 7.7 mi |
| #304450 | 69 kV | SAN DIEGO GAS & ELECTRIC | IN SERVICE | 6.2 mi |
| #312441 | 69 kV | SAN DIEGO GAS & ELECTRIC | IN SERVICE | 4.8 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP302772, 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 |
|---|---|---|---|---|---|---|---|
| SUNCREST | Substation-Adjacent | CA | San Diego County | 500 kV | 1,000 MW | 7.6 yrs | 58.0 |
| EAST COUNTY | Substation-Adjacent | CA | San Diego County | 500 kV | 1,000 MW | 7.6 yrs | 56.7 |
| CREELMAN | Substation-Adjacent | CA | San Diego County | 69 kV | 50 MW | 7.6 yrs | 49.1 |
| BOULEVARD | Substation-Adjacent | CA | San Diego County | 138 kV | 100 MW | 7.6 yrs | 48.4 |
| EC FFE San Diego County | Greenfield | CA | San Diego County | — | — | 7.6 yrs | 48.3 |
| ALPINE | Substation-Adjacent | CA | San Diego County | 69 kV | 50 MW | 7.6 yrs | 47.7 |
| TAP307975 | Substation-Adjacent | CA | San Diego County | 69 kV | 50 MW | 7.6 yrs | 47.6 |
| LOVELAND | Substation-Adjacent | CA | San Diego County | 69 kV | 50 MW | 7.6 yrs | 47.6 |
Who owns the transmission lines at TAP302772?
The 3 connected lines listed above are owned by SAN DIEGO GAS & ELECTRIC. Line voltages range from 69 kV to 69 kV. Their combined recorded length is about 18.7 miles.
How do candidate sites near TAP302772 score?
The 8 highest-scoring candidate sites within about 25 miles range from 48 to 58 on the 0–100 DC Readiness scale. They fall in San Diego 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
What voltage is TAP302772 substation?
TAP302772 has a maximum voltage of 69 kV. That places it in the 69–114 kV band. The median named US substation in this dataset is 115 kV, so TAP302772 is below the national midpoint.
How many transmission lines connect to TAP302772 substation?
3 transmission lines terminate at or pass through TAP302772 in the HIFLD line data. The connected lines listed here run at 69 kV. Together the listed lines cover about 18.7 miles.
Who owns TAP302772 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at TAP302772 belong to SAN DIEGO GAS & ELECTRIC. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is TAP302772 substation located?
TAP302772 is in California at 32.7141, -116.4737. The datacenter candidate sites closest to it are in San Diego County.
Are there datacenter candidate sites near TAP302772 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP302772. The highest-scoring is SUNCREST at 58/100. 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, “TAP302772 substation, California”, https://gridcensus.com/substations/california/tap302772-16fce0f4 (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 TAP302772 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.