Idaho Power Transmission Tariff Revisions Accepted
Summary
FERC's Office of Energy Market Regulation issued a letter order accepting Idaho Power Company's April 8, 2026 filing of revisions to Attachment C of its Open Access Transmission Tariff under docket ER26-1270. The tariff revisions were originally filed on February 5, 2026 and have now been accepted into effect. Transmission customers and market participants should review updated service terms and rates.
What changed
FERC issued a delegated letter order accepting Idaho Power Company's revisions to Attachment C of its Open Access Transmission Tariff filed under ER26-1270. The order was issued on April 8, 2026, accepting tariff modifications originally submitted on February 5, 2026.
Transmission customers, wholesale power purchasers, and other entities utilizing Idaho Power's transmission system should review the accepted revisions to understand updated rates, terms, and service conditions. The acceptance means these tariff provisions are now effective and enforceable under FERC jurisdiction.
What to do next
- Review updated Attachment C terms for transmission service obligations
- Verify contract alignment with accepted tariff revisions
Archived snapshot
Apr 8, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Document Info for Accession Number: 20260408-3029
Details Document: 04/08/2026
Filed: 04/08/2026
Posted: 04/08/2026 10:39:06 AM
First Received Date: 04/08/2026 10:18:27 AM
Security Level: Public
Official: Yes
E-filing: No
Non-decisional: No
Category: Issuance
Library: Electric
Aperture: 0
File Type:
Description* :** Letter order accepting Idaho Power Company's 02/05/2026 filing of revisions to Attachment C of its Open Access Transmission Tariff under ER26-1270.
File List
| Docket | Sub-Docket | Type |
| --- | --- | --- |
| ER26-1270 | 000 | On Document |
| Document Class | Document Type |
| --- | --- |
| Order/Opinion | Delegated Order |
| Correspondent | Last Name | First Name | MI | Role/Org |
| --- | --- | --- | --- | --- |
| RECIPIENT | * | * | | IDAHO POWER COMPANY |
| AUTHOR | Poré | A | S | OFFICE OF ENERGY MARKET REGULATION |
Named provisions
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