BLYTHE WALC
SubstationCalifornia · AZUSA LIGHT & POWER
At a glance
BLYTHE WALC is an electric transmission substation in California, on AZUSA LIGHT & POWER's transmission network. It is classified as sub-transmission (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 |
|---|---|---|---|---|
| #307750 | 161 kV | AZUSA LIGHT & POWER | IN SERVICE | 5.4 mi |
| #313937 | 161 kV | WAPA | IN SERVICE | 51.7 mi |
| #313933 | 33 kV | SOUTHERN CALIFORNIA EDISON | IN SERVICE | 16.8 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of BLYTHE WALC, 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 |
|---|---|---|---|---|---|---|---|
| COLORADO RIVER | Substation-Adjacent | CA | La Paz County | 500 kV | 1,000 MW | 7.6 yrs | 57.1 |
| BUCK | Substation-Adjacent | CA | La Paz County | 230 kV | 300 MW | 7.6 yrs | 53.3 |
| OZ La Paz | Greenfield | AZ | La Paz | — | — | 3.5 yrs | 50.0 |
| BLYTHE | Substation-Adjacent | CA | La Paz County | 161 kV | 100 MW | 7.6 yrs | 49.8 |
| BLM Solar DLA: Riverside East | Greenfield | AZ | La Paz County | — | 5,000 MW | 7.6 yrs | 49.0 |
| Colorado River Front Work & Levee System | Federal Excess | AZ | La Paz County | — | — | 3.5 yrs | 44.9 |
| Colorado River Front Work & Levee System | Federal Excess | AZ | La Paz County | — | — | 3.5 yrs | 44.7 |
| All-American Canal System | Federal Excess | AZ | La Paz County | — | — | 3.5 yrs | 44.7 |
How does BLYTHE WALC compare with other substations in California?
California has 4,260 substation records in HIFLD, of which 3,003 carry a station name; the rest are unnamed tap points, risers and line ends. 697 named substations in the state are in BLYTHE WALC's 115–229 kV band (23% of named stations). 428 sit in a higher band. 44 named substations in California operate at 345 kV or above. The highest voltage recorded in the state is 500 kV, and the state median is 69 kV.
Who owns the transmission lines at BLYTHE WALC?
The 3 connected lines listed above are owned by AZUSA LIGHT & POWER, WAPA, SOUTHERN CALIFORNIA EDISON. Line voltages range from 33 kV to 161 kV. Their combined recorded length is about 73.9 miles.
How do candidate sites near BLYTHE WALC score?
The 8 highest-scoring candidate sites within about 25 miles range from 45 to 57 on the 0–100 DC Readiness scale. They fall in La Paz County, La Paz. 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 BLYTHE WALC substation?
BLYTHE WALC has a maximum voltage of 115 kV and a minimum of 33 kV. That places it in the 115–229 kV band. The median named US substation in this dataset is 115 kV, so BLYTHE WALC is at the national midpoint.
How many transmission lines connect to BLYTHE WALC substation?
3 transmission lines terminate at or pass through BLYTHE WALC in the HIFLD line data. The connected lines listed here run at 161 kV, 33 kV. Together the listed lines cover about 73.9 miles.
Who owns BLYTHE WALC substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at BLYTHE WALC belong to AZUSA LIGHT & POWER, and others to SOUTHERN CALIFORNIA EDISON, WAPA. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is BLYTHE WALC substation located?
BLYTHE WALC is in California at 33.6114, -114.6803. The datacenter candidate sites closest to it are in La Paz County, La Paz.
Are there datacenter candidate sites near BLYTHE WALC substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of BLYTHE WALC. The highest-scoring is COLORADO RIVER at 57/100. Across California, the average DC Readiness score is 45.4.
Other 115 kV substations in California
- SANGER· 11 lines
- COLTON (CENTURY)· 10 lines
- MANTECA· 10 lines
- EAST NICOLAUS· 9 lines
- HERNDON· 9 lines
- AMES· 8 lines
- BAYSHORE· 8 lines
- CALECTRIC· 8 lines
- All named substations in California· 3,003 stations
- Datacenter candidate sites in California· 8,490 sites
- Brownfield and retired plant sites in California
- 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, “BLYTHE WALC substation, California”, https://gridcensus.com/substations/california/blythe-walc-04f1bd7f (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 BLYTHE WALC 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.