PONNEQUIN
SubstationColorado · CHEYENNE LIGHT FUEL & POWER CO
PONNEQUIN is an electric transmission substation in Colorado, operated by CHEYENNE LIGHT FUEL & POWER CO. It is classified as sub-transmission (115 kv) and connects 4 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 |
|---|---|---|---|---|
| #72280 | 115 kV | WAPA-- WESTERN AREA POWER ADMINISTRATION | — | 8.0 mi |
| #72281 | 115 kV | WAPA-- WESTERN AREA POWER ADMINISTRATION | — | 6.8 mi |
| #73507 | 115 kV | CHEYENNE LIGHT FUEL & POWER CO | — | 0.1 mi |
| #73611 | 115 kV | PUBLIC SERVICE CO OF COLORADO | — | 0.9 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of PONNEQUIN, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN206586 | Substation-Adjacent | WY | Laramie County | 230 kV | 300 MW | 1.7 yrs | 76.0 |
| UNKNOWN205186 | Substation-Adjacent | WY | Laramie County | 230 kV | 300 MW | 1.7 yrs | 72.2 |
| UNKNOWN202330 | Substation-Adjacent | WY | Laramie County | 138 kV | 100 MW | 1.7 yrs | 71.6 |
| UNKNOWN203998 | Substation-Adjacent | WY | Laramie County | 230 kV | 300 MW | 1.7 yrs | 71.2 |
| UNKNOWN202329 | Substation-Adjacent | WY | Laramie County | 115 kV | 100 MW | 1.7 yrs | 70.8 |
| UNKNOWN204232 | Substation-Adjacent | WY | Laramie County | 230 kV | 300 MW | 1.7 yrs | 70.7 |
| UNKNOWN202336 | Substation-Adjacent | WY | Laramie County | 161 kV | 100 MW | 1.7 yrs | 70.2 |
| UNKNOWN202331 | Substation-Adjacent | WY | Laramie County | 138 kV | 100 MW | 1.7 yrs | 69.9 |
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.
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This page shows a public slice of the GridCensus dataset for PONNEQUIN 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.