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Latest notices

Title Topics Posted
Resource Adequacy Modeling and Program Design meeting on 7/22/26 Markets
Demand and Distributed Energy Market Integration: Track 1 draft final proposal will be posted 7/8/26 Markets
Maintenance scheduled for California ISO reporting services on 7/13/2026 Information Technology
Storage Design and Modeling meeting on 7/22/26 Markets
WEM Governing Body, Joint, ISO Board of Governors, and Committees: 7/14/26 - 7/16/26 meetings, draft agendas posted; ISO Board of Governors: 7/22/26 executive session, final agenda posted Governance and committees
2026 Variable Operations and Maintenance Cost Review: Straw proposal to be posted Markets
Congestion Revenue Rights Enhancements; Phase 1 Final Proposal to be posted Markets
Price Formation Enhancements: Revised straw proposal posted, meetings on 7/13/26 and 7/14/26 Markets
2026 Variable Operations and Maintenance Cost Review meeting on 7/9/26 Legal and regulatory, Markets
BPM change management: Proposed revision requests and updated BPMs posted as of 6/30/26 Legal and regulatory
Market Seams workshop on 8/18/26 Markets
Pre Market-Sim Training: Inter-Scheduling Coordinator Trade on 7/7/26 Markets
Demand and Distributed Energy Market Integration meeting on 7/9/26 Markets
Extended Day-Ahead Market (EDAM) Market Performance: Monthly report will be posted in advance of 6/25/26 meeting Markets
Congestion Revenue Rights Enhancements: Draft final proposal posted, comments due 7/2/26 Markets
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Latest news

Title Topics Posted
Anita Decker reappointed to Western Energy Markets Governing Body Western Energy Markets 06/17/2026, 1:45 AM
ISO Board of Governors approves 2025-2026 transmission plan Transmission 05/19/2026, 12:15 AM
Black Hills Corp.’s South Dakota and Wyoming electric utility subsidiaries join Western Energy Imbalance Market Western Energy Markets 05/06/2026, 12:15 AM
BHE Montana joins the Western Energy Imbalance Market Western Energy Markets 05/06/2026, 12:00 AM
EDAM is live: PacifiCorp and CAISO successfully launch new market May 1 Western Energy Markets 05/01/2026, 12:15 AM
Two new Market Surveillance Committee members appointed; ISO Board of Governors also names new vice chair Leadership 04/30/2026, 12:00 AM
Western Energy Imbalance Market Continues to Deliver with Over $8.6 Billion in Total Benefits to Date Western Energy Markets 04/28/2026, 12:00 AM
Joint Virtual Press Conference: Launch of the Extended Day-Ahead Market (EDAM) Western Energy Markets 04/13/2026, 12:00 AM
Draft transmission plan now available; recommends 38 infrastructure upgrades to meet growing electricity demand Transmission 04/07/2026, 12:00 AM
Western Energy Imbalance Market Surpasses $8 Billion in Total Benefits Since Inception Western Energy Markets 02/13/2026, 12:00 AM
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