RISER308264
SubstationArizona · SALT RIVER PROJECT
At a glance
RISER308264 is an electric transmission substation in Arizona, on SALT RIVER PROJECT's transmission network. It is classified as unclassified 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #301787 | — | SALT RIVER PROJECT | IN SERVICE | 0.2 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of RISER308264, 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 |
|---|---|---|---|---|---|---|---|
| Copper Crossing Energy and Research Cent | Brownfield | AZ | Pinal County | 69 kV | 1,779 MW | 3.5 yrs | 69.5 |
| KYRENE | Substation-Adjacent | AZ | Maricopa County | 500 kV | 1,000 MW | 3.5 yrs | 66.0 |
| BROWNING | Substation-Adjacent | AZ | Pinal County | 500 kV | 1,000 MW | 3.5 yrs | 65.7 |
| WARD | Substation-Adjacent | AZ | Maricopa County | 230 kV | 300 MW | 3.5 yrs | 63.3 |
| EC Near Crosscut | Greenfield | AZ | Maricopa | — | — | 3.5 yrs | 63.2 |
| ABEL | Substation-Adjacent | AZ | Pinal County | 500 kV | 1,000 MW | 3.5 yrs | 63.0 |
| OZ Maricopa | Greenfield | AZ | Maricopa | — | — | 3.5 yrs | 62.9 |
| OZ Maricopa | Greenfield | AZ | Maricopa | — | — | 3.5 yrs | 62.8 |
Who owns the transmission lines at RISER308264?
The 1 connected line listed above is owned by SALT RIVER PROJECT. Their combined recorded length is about 0.2 miles.
How do candidate sites near RISER308264 score?
The 8 highest-scoring candidate sites within about 25 miles range from 63 to 70 on the 0–100 DC Readiness scale. They fall in Pinal County, Maricopa County, Maricopa. The Arizona average across 3,816 scored sites is 48.5. 614 of those Arizona sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
How many transmission lines connect to RISER308264 substation?
1 transmission line terminate at or pass through RISER308264 in the HIFLD line data. Together the listed lines cover about 0.2 miles.
Who owns RISER308264 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at RISER308264 belong to SALT RIVER PROJECT. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is RISER308264 substation located?
RISER308264 is in Arizona at 33.2920, -111.7346. The datacenter candidate sites closest to it are in Pinal County, Maricopa County, Maricopa.
Are there datacenter candidate sites near RISER308264 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of RISER308264. The highest-scoring is Copper Crossing Energy and Research Cent at 70/100. Across Arizona, the average DC Readiness score is 48.5.
More in Arizona
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, “RISER308264 substation, Arizona”, https://gridcensus.com/substations/arizona/riser308264-97324922 (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 RISER308264 substation, Arizona 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.