SANDIA
SubstationNevada · SIERRA PACIFIC POWER COMPANY
At a glance
SANDIA is an electric transmission substation in Nevada, on SIERRA PACIFIC POWER COMPANY's transmission network. It is classified as sub-transmission (115 kv) and connects 1 transmission line. 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 |
|---|---|---|---|---|
| #304428 | 120 kV | SIERRA PACIFIC POWER COMPANY | IN SERVICE | 32.1 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of SANDIA, 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 |
|---|---|---|---|---|---|---|---|
| EC FFE Nye County | Greenfield | NV | Nye County | — | — | 3.5 yrs | 48.6 |
| SANDIA | Substation-Adjacent | NV | Nye County | 120 kV | 100 MW | 3.5 yrs | 48.3 |
| TONOPAH NV | Federal Excess | NV | Nye County | — | — | 3.5 yrs | 45.9 |
| Tonopah FBO Building | Industrial | NV | Nye County | — | — | 3.5 yrs | 45.8 |
| Tonopah Airport Parcel 2, 6-acre portion of 63-acr | Industrial | NV | Nye County | — | — | 3.5 yrs | 45.8 |
| Mine Site | Former Mine | NV | Nye County | — | — | 3.5 yrs | 45.7 |
| Mine Site | Former Mine | NV | Nye County | — | — | 3.5 yrs | 45.6 |
| TONOPAH | Federal Excess | NV | Nye County | — | — | 3.5 yrs | 45.3 |
How does SANDIA compare with other substations in Nevada?
Nevada has 379 substation records in HIFLD, of which 175 carry a station name; the rest are unnamed tap points, risers and line ends. 96 named substations in the state are in SANDIA's 115–229 kV band (55% of named stations). 65 sit in a higher band. 24 named substations in Nevada operate at 345 kV or above. The highest voltage recorded in the state is 500 kV, and the state median is 138 kV.
Who owns the transmission lines at SANDIA?
The 1 connected line listed above is owned by SIERRA PACIFIC POWER COMPANY. Line voltages range from 120 kV to 120 kV. Their combined recorded length is about 32.1 miles.
How do candidate sites near SANDIA score?
The 8 highest-scoring candidate sites within about 25 miles range from 45 to 49 on the 0–100 DC Readiness scale. They fall in Nye County. The Nevada average across 1,809 scored sites is 48.5. 250 of those Nevada sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is SANDIA substation?
SANDIA has a maximum voltage of 120 kV. That places it in the 115–229 kV band. The median named US substation in this dataset is 115 kV, so SANDIA is above the national midpoint.
How many transmission lines connect to SANDIA substation?
1 transmission line terminate at or pass through SANDIA in the HIFLD line data. The connected lines listed here run at 120 kV. Together the listed lines cover about 32.1 miles.
Who owns SANDIA substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at SANDIA belong to SIERRA PACIFIC POWER COMPANY. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is SANDIA substation located?
SANDIA is in Nevada at 37.8859, -116.7660. The datacenter candidate sites closest to it are in Nye County.
Are there datacenter candidate sites near SANDIA substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of SANDIA. The highest-scoring is EC FFE Nye County at 49/100. Across Nevada, the average DC Readiness score is 48.5.
Other 120 kV substations in Nevada
- BRUNSWICK· 5 lines
- PRISON HILL· 5 lines
- VALLEY ROAD· 5 lines
- BOULDER BASIN· 4 lines
- MAGGIE CREEK· 4 lines
- MT. ROSE· 4 lines
- N.O. MILLERS· 4 lines
- NORTHWEST TAP· 4 lines
- All named substations in Nevada· 175 stations
- Datacenter candidate sites in Nevada· 1,809 sites
- Brownfield and retired plant sites in Nevada
- Substations by state
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, “SANDIA substation, Nevada”, https://gridcensus.com/substations/nevada/sandia-d006b64e (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 SANDIA substation, Nevada 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.