SUMMER LAKE
SubstationOregon · BONNEVILLE POWER ADMINISTRATION
SUMMER LAKE is an electric transmission substation in Oregon, operated by BONNEVILLE POWER ADMINISTRATION. It is classified as extra-high-voltage (500 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 & operation
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #67145 | 500 kV | PACIFICORP | IN SERVICE | 11.3 mi |
| #67146 | 500 kV | PACIFICORP | IN SERVICE | 110.4 mi |
| #67147 | 500 kV | BONNEVILLE POWER ADMINISTRATION | IN SERVICE | 16.0 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of SUMMER LAKE, 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 |
|---|---|---|---|---|---|---|---|
| FORT ROCK | Substation-Adjacent | OR | Lake County | 500 kV | 1,000 MW | 1.7 yrs | 65.5 |
| SUMMER LAKE | Substation-Adjacent | OR | Lake County | 500 kV | 1,000 MW | 1.7 yrs | 64.0 |
| SYCAN | Substation-Adjacent | OR | Lake County | 500 kV | 1,000 MW | 5.7 yrs | 62.8 |
| Greenfield (CAPTAIN JACK - SYCAN) | Greenfield | OR | Klamath County | 500 kV | 1,000 MW | 1.7 yrs | 60.6 |
| Greenfield (CAPTAIN JACK - SYCAN) | Greenfield | OR | Klamath County | 500 kV | 1,000 MW | 1.7 yrs | 59.8 |
| Greenfield (SYCAN - FORT ROCK) | Greenfield | OR | Lake County | 500 kV | 1,000 MW | 1.7 yrs | 59.5 |
| Greenfield (SUMMER LAKE - FORT ROCK) | Greenfield | OR | Lake County | 500 kV | 1,000 MW | 1.7 yrs | 59.3 |
| Greenfield (FORT ROCK - SAND SPRINGS) | Greenfield | OR | Deschutes County | 500 kV | 1,000 MW | 1.7 yrs | 59.0 |
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
This page shows a public slice of the GridCensus dataset for SUMMER LAKE substation, Oregon. Pro and Enterprise plans unlock the full 164,098-site catalog, raw sub-scores, parcel ownership, interconnection-queue detail, saved searches, and programmatic API access.