TARRYALL
SubstationColorado · PUBLIC SERVICE CO OF COLORADO
TARRYALL is an electric transmission substation in Colorado, operated by PUBLIC SERVICE CO OF COLORADO. It is classified as high-voltage (230 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 |
|---|---|---|---|---|
| #68875 | 230 kV | PUBLIC SERVICE CO OF COLORADO | — | 25.7 mi |
| #68878 | 230 kV | PUBLIC SERVICE CO OF COLORADO | — | 38.3 mi |
| #68881 | 115 kV | PUBLIC SERVICE CO OF COLORADO | — | 11.6 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TARRYALL, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN203960 | Substation-Adjacent | CO | Douglas County | 115 kV | 100 MW | 1.7 yrs | 62.8 |
| TARRYALL | Substation-Adjacent | CO | Park County | 230 kV | 300 MW | 1.7 yrs | 62.7 |
| WOODLAND PARK | Substation-Adjacent | CO | Teller County | 115 kV | 100 MW | 1.7 yrs | 62.2 |
| UNKNOWN201803 | Substation-Adjacent | CO | Teller County | 115 kV | 100 MW | 1.7 yrs | 61.6 |
| DIVIDE | Substation-Adjacent | CO | Teller County | 115 kV | 100 MW | 1.7 yrs | 60.7 |
| UNKNOWN203961 | Substation-Adjacent | CO | Teller County | 115 kV | 100 MW | 1.7 yrs | 58.8 |
| UNKNOWN201855 | Substation-Adjacent | CO | Jefferson County | 115 kV | 100 MW | 1.7 yrs | 57.7 |
| Greenfield (WATERTON - TARRYALL) | Greenfield | CO | Douglas County | 230 kV | 300 MW | 1.7 yrs | 57.1 |
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 TARRYALL 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.