TAP310777
SubstationCalifornia · SACRAMENTO MUNICIPAL UTILITY DISTRICT
At a glance
TAP310777 is an electric transmission substation in California, operated by SACRAMENTO MUNICIPAL UTILITY DISTRICT. It is classified as distribution (<69 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #304295 | 60 kV | SACRAMENTO MUNICIPAL UTILITY DISTRICT | IN SERVICE | 0.3 mi |
| #305133 | 60 kV | SACRAMENTO MUNICIPAL UTILITY DISTRICT | IN SERVICE | 2.1 mi |
| #308639 | 60 kV | SACRAMENTO MUNICIPAL UTILITY DISTRICT | IN SERVICE | 0.5 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP310777, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN302253 | Substation-Adjacent | CA | Sacramento County | 230 kV | 300 MW | 7.6 yrs | 58.0 |
| STATION A | Substation-Adjacent | CA | Sacramento County | 230 kV | 300 MW | 7.6 yrs | 57.8 |
| NORTH CITY | Substation-Adjacent | CA | Sacramento County | 230 kV | 300 MW | 7.6 yrs | 57.8 |
| STATION B | Substation-Adjacent | CA | Sacramento County | 230 kV | 300 MW | 7.6 yrs | 57.7 |
| STATION D | Substation-Adjacent | CA | Sacramento County | 230 kV | 300 MW | 7.6 yrs | 57.7 |
| FIDDYMENT | Substation-Adjacent | CA | Sacramento County | 230 kV | 300 MW | 7.6 yrs | 57.6 |
| NATOMAS | Substation-Adjacent | CA | Sacramento County | 230 kV | 300 MW | 7.6 yrs | 57.2 |
| Sierra Pacific Lincoln Facility | Brownfield | CA | Sutter County | 66 kV | 13 MW | 7.6 yrs | 57.1 |
Who owns the transmission lines at TAP310777?
The 3 connected lines listed above are owned by SACRAMENTO MUNICIPAL UTILITY DISTRICT. Line voltages range from 60 kV to 60 kV. Their combined recorded length is about 3 miles.
How do candidate sites near TAP310777 score?
The 8 highest-scoring candidate sites within about 25 miles range from 57 to 58 on the 0–100 DC Readiness scale. They fall in Sacramento County, Sutter 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 TAP310777 substation?
TAP310777 has a maximum voltage of 60 kV. That places it in the below 69 kV band. The median named US substation in this dataset is 115 kV, so TAP310777 is below the national midpoint.
How many transmission lines connect to TAP310777 substation?
3 transmission lines terminate at or pass through TAP310777 in the HIFLD line data. The connected lines listed here run at 60 kV. Together the listed lines cover about 3 miles.
Who owns TAP310777 substation?
HIFLD lists SACRAMENTO MUNICIPAL UTILITY DISTRICT as the operator of TAP310777.
Where is TAP310777 substation located?
TAP310777 is in California at 38.6779, -121.3155. The datacenter candidate sites closest to it are in Sacramento County, Sutter County.
Are there datacenter candidate sites near TAP310777 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP310777. The highest-scoring is UNKNOWN302253 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, “TAP310777 substation, California”, https://gridcensus.com/substations/california/tap310777-dce017bf (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 TAP310777 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.