Data centers and new power in Idaho
11.6 GW of new power is waiting to connect to the grid in Idaho — 65 requests across 27 counties. That is the 28th largest amount of any state. 218 projects are built, 558 withdrawn. Data as of 14 October 2026.
What is happening with electricity in Idaho
Every new power plant, battery or big customer has to join a waiting list before it can plug into the grid. This is what that list looks like in Idaho right now.
Where every request ever filed here ended up
Most requests in the US are withdrawn — a developer tests a site and moves on. That is normal, not a warning sign for Idaho.
What kind of power is asking to connect
By capacity requested. Data as of 14 October 2026.
All the numbers
860 requests ever filed
Source: the interconnection queues of every transmission provider operating in Idaho. Parsed and normalised by Watt Street. Data as of 14 October 2026. A queued project is a request, not a commitment.
Waiting to connect, by type of power
| Type | Projects | Capacity requested |
|---|---|---|
| Solar | 29 | 5.9 GW |
| Batteries | 13 | 2.3 GW |
| Natural gas | 8 | 1.9 GW |
| Wind | 7 | 1.4 GW |
| Hydro | 7 | 93 MW |
| Nuclear | 1 | 45 MW |
Who runs the waiting list in Idaho
| Grid operator or utility | Requests | Capacity pending |
|---|---|---|
| IP | 674 | 7.8 GW |
| PacifiCorp | 126 | 3.1 GW |
| Avista | 24 | 455 MW |
| BPA | 34 | 293 MW |
| CAISO | 2 | 0 MW |
Counties in Idaho
27 with power on the waiting list
Every county with at least five requests on file. Open one to check an address, or see the schools near any mapped data center.
| County | Waiting | Capacity queued | Already built |
|---|---|---|---|
| Elmore County | 10 | 2.5 GW | 1.1 GW |
| Ada County | 11 | 2.0 GW | 531 MW |
| Bingham County | 8 | 1.8 GW | 152 MW |
| Power County | 4 | 1.6 GW | 297 MW |
| Owyhee County | 5 | 993 MW | 185 MW |
| Canyon County | 4 | 594 MW | 89 MW |
| Jerome County | 2 | 320 MW | 60 MW |
| Bannock County | 2 | 301 MW | 4 MW |
| Kootenai County | 4 | 255 MW | 0 MW |
| Bonneville County | 2 | 211 MW | 309 MW |
| Blaine County | 2 | 200 MW | 12 MW |
| Lincoln County | 1 | 200 MW | 16 MW |
| Fremont County | 1 | 195 MW | 9 MW |
| Minidoka County | 1 | 56 MW | 10 MW |
| Twin Falls County | 1 | 19 MW | 665 MW |
| Franklin County | 1 | 0 MW | 0 MW |
| Gem County | 1 | 0 MW | 0 MW |
| Butte County | 0 | 0 MW | 0 MW |
| Camas County | 0 | 0 MW | 0 MW |
| Caribou County | 0 | 0 MW | 0 MW |
| Cassia County | 0 | 0 MW | 72 MW |
| Clark County | 0 | 0 MW | 0 MW |
| Gooding County | 0 | 0 MW | 18 MW |
| Idaho County | 0 | 0 MW | 2 MW |
| Jefferson County | 0 | 0 MW | 2 MW |
Key dates for projects here
1 dated · next closes 2026-10-15 (CAISO)
| Queue | What closes | Closes | Standing |
|---|---|---|---|
| CAISO | CAISO Cluster 16 interconnection request window Interconnection requests submitted through the GRIP portal. | 2026-10-15 | confirmed source |
| FERC | FERC large-load show cause — stakeholder comments on RTO responses Comments on the six RTO/ISO responses to the FPA section 206 show-cause orders of 18 June 2026 (PJM EL26-67, SPP EL26-68, NYISO EL26-69, MISO EL26-70… | No date published yet | unconfirmed source |
| FERC | FERC RM26-4 — generic large-load rulemaking Still at ANOPR stage. | No date published yet | confirmed source |
| FERC | Georgia PSC - Georgia Power must file large-load contracts 30 days before execution A standing obligation rather than a dated one: large-load contracts must be filed with the commission at least 30 days before they are executed. | No date published yet | confirmed source |
A date marked confirmed was checked by a person against the authority's own tariff, order or form page. Anything else is listed so you know it exists, with a link so you can check it yourself. Full calendar.
Big new power users asking to connect
24 requests · 307 MW
Requests to connect large new customers — data centers, factories, electrification — rather than power plants.
| Request | Capacity | County | Status | Queue |
|---|---|---|---|---|
| Industrial Park | 120 MW | Kootenai County | withdrawn | BPA |
| Thompson Creek Mine Load | 28 MW | Custer County | energized | BPA |
| Elmore County SFBRD | 27 MW | Elmore County | energized | BPA |
| Starrh Transformer Replacement | 21 MW | Cassia County | withdrawn | BPA |
| L0518 Pacific Substation Transformer | 21 MW | Cassia County | withdrawn | BPA |
| New Midway Substation | 14 MW | Teton County | active | BPA |
| Bridge Substation | 10 MW | Cassia County | active | BPA |
| Liberty Gold | 10 MW | Cassia County | active | BPA |
| Sand Creek Substation | 9 MW | Bonner County | active | BPA |
| Drummond-Macks Inn 46 kV to 115 kV Conversion | 8 MW | Fremont County | energized | BPA |
| United Electric Line Tap | 8 MW | Cassia County | withdrawn | BPA |
| NLI New Naples Service | 7 MW | Boundary County | active | BPA |
| Rural Substation | 7 MW | Minidoka County | active | BPA |
| East Hills Substation | 7 MW | Cassia County | active | BPA |
| West Burley Loads | 5 MW | Cassia County | energized | BPA |
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