RESOURCES





Unapproved Draft RTP for 2024-2025 Cycle

This draft report has yet to be approved by the Member Planning Committee and is subject to change

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2024-2025_Draf… (.pdf)
Last updated July 10, 2025
2025: Proposed schedule for Regional Transmission Plan
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2025_Draft_Sch… (.pdf)
Last updated June 2, 2025
Remaining 2025 Regional Activities

A high-level, non-comprehensive list of some of the major regional activities over the rest of '25

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Interregional_… (.pdf)
Last updated May 28, 2025
2025 AICM NG Presentation
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AICM_NG_2025.p… (.pdf)
Last updated March 13, 2025
Annual Interregional Coordination Meeting 2025

High-level details for the 2025 AICM hosted by CAISO

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2025_Interregi… (.pdf)
Last updated Jan. 27, 2025
Approved 2024 Economic Study Request, North Plains Connector

Approved 2024 ESR Report for the North Plains Connector Project

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ESR_NorthPlain… (.pdf)
Last updated Jan. 23, 2025
Approved 2024-2025 Study Scope

Approved 2024-2025 Study Scope

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2024_2025_Appr… (.pdf)
Last updated Jan. 23, 2025
Draft ESR for Consideration, 2024 North Plains Connector
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ESR_NorthPlain… (.pdf)
Last updated Jan. 6, 2025
Comments on the Initial Draft Study Scope 2024-2025
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Study_Scope_Ro… (.pdf)
Last updated Nov. 13, 2024
Draft 2 of the Study Scope for the 2024-2025 NorthernGrid Cycle
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NG_Study_Scope… (.pdf)
Last updated Dec. 18, 2024
NorthernGrid Study Scope Schedule

Description of the steps and times needed for the successful creation of the NG Study Scope

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NG_2024_2025_S… (.pdf)
Last updated Oct. 7, 2024
Attachment K

Attachment K with numbering from NorthWestern Energy

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Att_K_-_Transm… (.pdf)
Last updated May 17, 2024
Economic Study Report: Pumped Storage Hydro on the Oregon Coast

Rye Development ESR Final Report

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ESR_OSW_PSH_Fi… (.pdf)
Last updated April 19, 2024
Draft ESR for Consideration, V3

Rye Development ESR draft report, V3

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ESR_OSW_PSH_V3… (.pdf)
Last updated April 11, 2024
Qualified Developer Determination for 2024 2025 cycle: TransCanyon
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Table_B_Projec… (.pdf)
Last updated April 10, 2024
NorthernGrid 2024 Econcomic Study Request
Western Transmission Projects

A non-binding, high-level map of western transmission projects, regional and interregional

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Western_Transm… (.pptx)
Last updated March 27, 2024
WECC presentation for the AICM
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WECC-AICM-2024… (.pptx)
Last updated March 26, 2024
WECC presentation for the AICM
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WECC-AICM-2024… (.pptx)
Last updated March 26, 2024
Draft ESR for Consideration, Version 2

Updated draft 2023 ESR report

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ESR_OSW_PSH_V2… (.pdf)
Last updated March 20, 2024

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