PORTNER
SubstationColorado · PLATTE RIVER POWER AUTHORITY
PORTNER is an electric transmission substation in Colorado, operated by PLATTE RIVER POWER AUTHORITY. It is classified as high-voltage (230 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #68920 | 230 kV | PLATTE RIVER POWER AUTHORITY | — | 8.5 mi |
| #72306 | 230 kV | PLATTE RIVER POWER AUTHORITY | — | 3.2 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of PORTNER, 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 |
|---|---|---|---|---|---|---|---|
| FORDHAM | Substation-Adjacent | CO | Broomfield County | 230 kV | 300 MW | 1.7 yrs | 68.4 |
| RAWHIDE | Substation-Adjacent | CO | Larimer County | 230 kV | 300 MW | 1.7 yrs | 67.7 |
| AULT | Substation-Adjacent | CO | Weld County | 345 kV | 600 MW | 1.7 yrs | 67.5 |
| HARMONY | Substation-Adjacent | CO | Larimer County | 230 kV | 300 MW | 1.7 yrs | 67.4 |
| PORTNER | Substation-Adjacent | CO | Larimer County | 230 kV | 300 MW | 1.7 yrs | 66.9 |
| FORT ST VRAIN | Substation-Adjacent | CO | Broomfield County | 230 kV | 300 MW | 1.7 yrs | 66.4 |
| BOYD | Substation-Adjacent | CO | Boulder County | 230 kV | 300 MW | 1.7 yrs | 65.3 |
| WINDSOR | Substation-Adjacent | CO | Weld County | 230 kV | 300 MW | 1.7 yrs | 65.2 |
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 PORTNER substation, Colorado. 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.