EAST JACKSON 1&2
SubstationWyoming · LOWER VALLEY ENERGY INC
At a glance
EAST JACKSON 1&2 is an electric transmission substation in Wyoming, on LOWER VALLEY ENERGY INC's transmission network. It is classified as sub-transmission (138 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 |
|---|---|---|---|---|
| #208317 | 138 kV | LOWER VALLEY ENERGY INC | — | 0.1 mi |
| #202644 | 115 kV | LOWER VALLEY ENERGY INC | — | 12.5 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of EAST JACKSON 1&2, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN202629 | Substation-Adjacent | WY | Bonneville County | 115 kV | 100 MW | 3.5 yrs | 53.3 |
| TARGHEE TAP | Substation-Adjacent | ID | Teton County | 115 kV | 100 MW | 5.0 yrs | 52.6 |
| TARGHEE | Substation-Adjacent | ID | Teton County | 115 kV | 100 MW | 5.0 yrs | 52.6 |
| TAP203513 | Substation-Adjacent | ID | Teton County | 115 kV | 100 MW | 5.0 yrs | 52.6 |
| WILSON 1&2 | Substation-Adjacent | WY | Teton County | 161 kV | 100 MW | 3.5 yrs | 52.2 |
| UNKNOWN202286 | Substation-Adjacent | WY | Teton County | 161 kV | 100 MW | 3.5 yrs | 52.2 |
| EAST JACKSON 1&2 | Substation-Adjacent | WY | Teton County | 138 kV | 100 MW | 3.5 yrs | 51.9 |
| RAFTER J | Substation-Adjacent | WY | Teton County | 115 kV | 100 MW | 3.5 yrs | 51.5 |
How does EAST JACKSON 1&2 compare with other substations in Wyoming?
Wyoming has 849 substation records in HIFLD, of which 73 carry a station name; the rest are unnamed tap points, risers and line ends. 9 named substations in the state are in EAST JACKSON 1&2's 115–229 kV band (12% of named stations). 49 sit in a higher band. 2 named substations in Wyoming operate at 345 kV or above. The highest voltage recorded in the state is 345 kV, and the state median is 230 kV.
Who owns the transmission lines at EAST JACKSON 1&2?
The 2 connected lines listed above are owned by LOWER VALLEY ENERGY INC. Line voltages range from 115 kV to 138 kV. Their combined recorded length is about 12.5 miles.
How do candidate sites near EAST JACKSON 1&2 score?
The 8 highest-scoring candidate sites within about 25 miles range from 52 to 53 on the 0–100 DC Readiness scale. They fall in Bonneville County, Teton County. The Wyoming average across 1,639 scored sites is 52.2. 441 of those Wyoming sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is EAST JACKSON 1&2 substation?
EAST JACKSON 1&2 has a maximum voltage of 138 kV and a minimum of 115 kV. That places it in the 115–229 kV band. The median named US substation in this dataset is 115 kV, so EAST JACKSON 1&2 is above the national midpoint.
How many transmission lines connect to EAST JACKSON 1&2 substation?
2 transmission lines terminate at or pass through EAST JACKSON 1&2 in the HIFLD line data. The connected lines listed here run at 138 kV, 115 kV. Together the listed lines cover about 12.5 miles.
Who owns EAST JACKSON 1&2 substation?
HIFLD does not publish substation owners directly. Most of the transmission lines that end at EAST JACKSON 1&2 belong to LOWER VALLEY ENERGY INC. GridCensus derives this from the line data, so confirm ownership with the utility for anything contractual.
Where is EAST JACKSON 1&2 substation located?
EAST JACKSON 1&2 is in Wyoming at 43.4757, -110.7544. The datacenter candidate sites closest to it are in Bonneville County, Teton County.
Are there datacenter candidate sites near EAST JACKSON 1&2 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of EAST JACKSON 1&2. The highest-scoring is UNKNOWN202629 at 53/100. Across Wyoming, the average DC Readiness score is 52.2.
Other 138 kV substations in Wyoming
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, “EAST JACKSON 1&2 substation, Wyoming”, https://gridcensus.com/substations/wyoming/east-jackson-1-2-31f49499 (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 EAST JACKSON 1&2 substation, Wyoming 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.