TAP207270
SubstationIdaho · IDAHO POWER CO
At a glance
TAP207270 is an electric transmission substation in Idaho, operated by IDAHO POWER CO. It is classified as sub-transmission (115 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
Connected transmission lines
Lines terminating at or passing through this substation, by HIFLD line ID, highest voltage first.
| Line ID | Voltage | Owner | Status | Length |
|---|---|---|---|---|
| #208355 | 115 kV | IDAHO POWER CO | — | 4.3 mi |
| #208356 | 115 kV | IDAHO POWER CO | — | 0.1 mi |
| #208357 | 115 kV | IDAHO POWER CO | — | 0.1 mi |
Nearby datacenter candidate sites
Scored candidate sites within roughly 25 miles of TAP207270, 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 |
|---|---|---|---|---|---|---|---|
| UNKNOWN201309 | Substation-Adjacent | ID | Elmore County | 230 kV | 300 MW | 5.0 yrs | 61.2 |
| UNKNOWN201308 | Substation-Adjacent | ID | Elmore County | 230 kV | 300 MW | 5.0 yrs | 59.9 |
| EC Near Bennett Mountain | Greenfield | ID | Elmore | — | — | 5.0 yrs | 59.8 |
| EC Near Bennett Mountain | Greenfield | ID | Elmore | — | — | 5.0 yrs | 59.8 |
| TAP204862 | Substation-Adjacent | ID | Elmore County | 230 kV | 300 MW | 5.0 yrs | 59.6 |
| EC Near Bennett Mountain | Greenfield | ID | Elmore | — | — | 5.0 yrs | 59.6 |
| UNKNOWN205031 | Substation-Adjacent | ID | Elmore County | 230 kV | 300 MW | 5.0 yrs | 59.5 |
| EC Near Bennett Mountain | Greenfield | ID | Elmore | — | — | 5.0 yrs | 59.5 |
Who owns the transmission lines at TAP207270?
The 3 connected lines listed above are owned by IDAHO POWER CO. Line voltages range from 115 kV to 115 kV. Their combined recorded length is about 4.5 miles.
How do candidate sites near TAP207270 score?
The 8 highest-scoring candidate sites within about 25 miles range from 60 to 61 on the 0–100 DC Readiness scale. They fall in Elmore County, Elmore. The Idaho average across 2,171 scored sites is 51.7. 646 of those Idaho sites are classed as substation sites (candidate locations generated at an existing substation).
Frequently asked questions
What voltage is TAP207270 substation?
TAP207270 has a maximum voltage of 115 kV. That places it in the 115–229 kV band. The median named US substation in this dataset is 115 kV, so TAP207270 is at the national midpoint.
How many transmission lines connect to TAP207270 substation?
3 transmission lines terminate at or pass through TAP207270 in the HIFLD line data. The connected lines listed here run at 115 kV. Together the listed lines cover about 4.5 miles.
Who owns TAP207270 substation?
HIFLD lists IDAHO POWER CO as the operator of TAP207270.
Where is TAP207270 substation located?
TAP207270 is in Idaho at 42.9584, -115.6302. The datacenter candidate sites closest to it are in Elmore County, Elmore.
Are there datacenter candidate sites near TAP207270 substation?
GridCensus lists at least 8 scored candidate sites within roughly 25 miles of TAP207270. The highest-scoring is UNKNOWN201309 at 61/100. Across Idaho, the average DC Readiness score is 51.7.
More in Idaho
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, “TAP207270 substation, Idaho”, https://gridcensus.com/substations/idaho/tap207270-3f386ff9 (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 TAP207270 substation, Idaho 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.