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Latest notices

Title Topics Posted
Western Energy Markets Regional Issues Forum on 3/16/26: Registration requested Markets, Governance and committees
Resource Adequacy Modeling and Program Design: Tracks 1 and 3A Updated Tariff Language posted Markets, Planning
Financial Planning Initiatives: straw proposal posted; call on 2/12/26 Legal and regulatory, Markets, Operations
Training Announcement: Extended Day-Ahead Market (EDAM) Training for Intertie Scheduling Readiness on 2/11/26 Markets, Operations
BPM change management: Proposed revision requests and updated BPMs posted as of 2/3/26 Legal and regulatory
Storage Design and Modeling: Commenting tool is open for submissions; Comments due 2/17/26 Markets
Market Surveillance Committee teleconference meeting on 2/6/26: Final Agenda posted; Materials to be posted Markets, Governance and committees
New Initiative: Cost-of-Service Study Extension, Revenue Requirement Cap Increase, and Other Rate Design Considerations; call on 2/12/26 Legal and regulatory, Markets, Operations
Congestion Revenue Rights Enhancements: Comment template posted; comments due 2/6/26 Markets
Day-Ahead Market Enhancements: Configurable Parameters Implementation working group meeting on 1/29/26 Markets
Extended Day-ahead Market (EDAM) Implementation: Intertie Scheduling Readiness and Q&A Session Workshop on 1/30/26 Markets
Market Performance and Planning Forum on 1/27/26 Markets, Operations, Planning, Information Technology
Storage Design and Modeling Meeting Updated to half-day on 1/22/26 Markets
Extended Day-Ahead Market Benefit Methodology draft posted; meeting on 1/27/26 Markets
Business Practice Manual Change Management call on 1/27/26 Legal and regulatory
No results
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Latest news

Title Topics Posted
CAISO submits first Assembly Bill 825 report to Legislature and Governor Western Energy Markets 02/02/2026, 11:20 AM
Western Energy Imbalance Market Surpasses $7.82 Billion in Total Benefits Western Energy Markets 10/30/2025, 10:45 AM
WEIM Posts Strong Q2, Surpassing $7.4 Billion in Total Benefits Western Energy Markets 07/31/2025, 12:00 AM
WEM Governing Body approves important market reliability feature Western Energy Markets 07/23/2025, 1:20 PM
Public Service Company of New Mexico commits to join the Extended Day-Ahead Market Western Energy Markets 07/01/2025, 9:25 AM
Deborah Smith, former Seattle City Light CEO, added to Western Energy Markets Governing Body Western Energy Markets 06/18/2025, 3:17 PM
Imperial Irrigation District to join both ISO-operated electricity markets Western Energy Markets 05/27/2025, 10:00 AM
Turlock Irrigation District commits to joining Extended Day-Ahead Market Western Energy Markets 05/19/2025, 9:59 AM
Western Energy Imbalance Market approaches new milestone Western Energy Markets 04/30/2025, 10:00 AM
WEIM cumulative benefits approach $7 billion Western Energy Markets 01/30/2025, 12:00 AM
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