RISER301681
SubstationCalifornia · KMPUD
At a glance
RISER301681 is an electric transmission substation in California, on KMPUD's transmission network. It is classified as distribution (<69 kv) 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #305537 | 35 kV | PACIFIC GAS & ELECTRIC COMPANY | IN SERVICE | 1.8 mi |
| #312011 | 35 kV | KMPUD | IN SERVICE | 24.6 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of RISER301681, 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 |
|---|---|---|---|---|---|---|---|
| TIGER CREEK | Substation-Adjacent | CA | Amador County | 230 kV | 300 MW | 7.6 yrs | 51.8 |
| CAMINO | Substation-Adjacent | CA | El Dorado County | 230 kV | 300 MW | 7.6 yrs | 51.3 |
| COLLIERVILLE | Substation-Adjacent | CA | Calaveras County | 230 kV | 300 MW | 7.6 yrs | 51.3 |
| JAYBIRD | Substation-Adjacent | CA | El Dorado County | 230 kV | 300 MW | 7.6 yrs | 50.9 |
| ROBBS PEAK | Substation-Adjacent | CA | El Dorado County | 230 kV | 300 MW | 7.6 yrs | 50.8 |
| UNION VALLEY | Substation-Adjacent | CA | El Dorado County | 230 kV | 300 MW | 7.6 yrs | 50.7 |
| MEYERS | Substation-Adjacent | CA | Alpine County | 120 kV | 100 MW | 7.6 yrs | 47.3 |
| SALT SPRINGS | Substation-Adjacent | CA | Amador County | 115 kV | 100 MW | 7.6 yrs | 47.2 |
Who owns the transmission lines at RISER301681?
The 2 connected lines listed above are owned by PACIFIC GAS & ELECTRIC COMPANY, KMPUD. Line voltages range from 35 kV to 35 kV. Their combined recorded length is about 26.4 miles.
How do candidate sites near RISER301681 score?
The 8 highest-scoring candidate sites within about 25 miles range from 47 to 52 on the 0–100 DC Readiness scale. They fall in Amador County, El Dorado County, Calaveras County, Alpine 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 RISER301681 substation?
RISER301681 has a maximum voltage of 35 kV. That places it in the below 69 kV band. The median named US substation in this dataset is 115 kV, so RISER301681 is below the national midpoint.
How many transmission lines connect to RISER301681 substation?
2 transmission lines terminate at or pass through RISER301681 in the HIFLD line data. The connected lines listed here run at 35 kV. Together the listed lines cover about 26.4 miles.
Who owns RISER301681 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at RISER301681 belong to KMPUD, and others to PACIFIC GAS & ELECTRIC COMPANY. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is RISER301681 substation located?
RISER301681 is in California at 38.5360, -120.2414. The datacenter candidate sites closest to it are in Amador County, El Dorado County, Calaveras County.
Are there datacenter candidate sites near RISER301681 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of RISER301681. The highest-scoring is TIGER CREEK at 52/100. 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, “RISER301681 substation, California”, https://gridcensus.com/substations/california/riser301681-f0c5612a (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 RISER301681 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.