Regional market offerings are governed by a five member body with energy industry or regulatory expertise, and are financially independent from market participants
Governing Body
The Western Energy Imbalance Market (WEIM) is governed by a five member body with shared authority from the ISO Board of Governors on rules specific to participation to the WEIM and the Extended Day-Ahead Market that is set to launch in 2026.
Designed by regional stakeholders, the governing body is nominated by a committee of western stakeholders. These members bring a high level of professionalism and leadership, with work experience in public power, investor-owned utilities, and as state regulators.
Members
WEM Governing Body market expert
Foundational and policy documents
Upcoming events
For connectivity issues, call AT&T at 1-888-793-6118 then press *0 for assistance.
Public comments may be provided to the ISO Board of Governors and/or the WEM Governing Body both orally during noticed meetings, and in writing. Oral comments for matters not on the agenda are addressed at the beginning of meetings, while those on agenda items are addressed when the item is presented. Written comments are publicly posted and should be sent at least one week prior to meetings to allow enough time for review by the Board and/or the Governing Body. Comment letters should be sent to sbernard@caiso.com and kosborne@caiso.com.
Market expert opinions and briefings
Contact
For information on or assistance with the Governing Body, please contact:
Kristina Osborne
kosborne@caiso.com
Holly Taylor
htaylor@caiso.comMeeting documents (last 12 months)
All meeting documents03/04/2026
1:30 PM - 4:30 PM
Online
Joint ISO Board of Governors and WEM Governing Body General Session
Related documents
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Video - Joint ISO Board of Governors and WEM Governing Body General Session - Mar 04, 202603/05/2026, 3:07 PM
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Agendas
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Final Agenda - ISO Board of Governors Meeting - Mar 04-05, 202602/27/2026, 9:04 AM
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Final Agenda - WEM Governing Body Meeting - Mar 03-04, 202602/27/2026, 10:47 AM
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Consent agenda
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CEO report
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CEO Report - Mar 202602/24/2026, 2:56 PM
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Briefing on extended day-ahead market benefits methodology
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Briefing on Extended Day-Ahead Market Benefits Methodology - Mar 202602/25/2026, 1:13 PM
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Briefing on Day-Ahead Market Enhancements Configurable Parameters
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Briefing on Day-Ahead Market Enhancements Configurable Parameters - Mar 202602/25/2026, 4:29 PM
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Informational reports
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Department of Market Monitoring Update - Mar 202602/25/2026, 1:13 PM
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Market Performance Update - Mar 202602/25/2026, 1:13 PM
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Market Surveillance Committee Update - Mar 202602/25/2026, 5:02 PM
- Final Agenda - ISO Board of Governors Meeting - Mar 04-05, 202602/27/2026, 9:04 AM
- Final Agenda - WEM Governing Body Meeting - Mar 03-04, 202602/27/2026, 10:47 AM
- CEO Report - Mar 202602/24/2026, 2:56 PM
- Briefing on Extended Day-Ahead Market Benefits Methodology - Mar 202602/25/2026, 1:13 PM
- Briefing on Day-Ahead Market Enhancements Configurable Parameters - Mar 202602/25/2026, 4:29 PM
- Department of Market Monitoring Update - Mar 202602/25/2026, 1:13 PM
- Market Performance Update - Mar 202602/25/2026, 1:13 PM
- Market Surveillance Committee Update - Mar 202602/25/2026, 5:02 PM
03/04/2026
9:30 AM - 12:30 PM
Online
Joint ISO Board of Governors and WEM Governing Body Executive Session
Related documents
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Final Agenda - ISO Board of Governors Meeting - Mar 04-05, 202602/27/2026, 9:04 AM
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Final Agenda - WEM Governing Body Meeting - Mar 03-04, 202602/27/2026, 10:47 AM
03/03/2026
1:00 PM - 3:15 PM
Online
WEM Governing Body General Session
Related documents
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Video - WEM Governing Body General Session - Mar 03, 202603/04/2026, 12:00 PM
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Final Agenda - WEM Governing Body Meeting - Mar 03-04, 202602/27/2026, 10:47 AM
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Public comment
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CEO report
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CEO Report - Mar 202602/24/2026, 2:57 PM
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Policy spotlight briefing on price formation enhancements
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ISO Presentation - Policy Spotlight Briefing on Price Formation Enhancements - Mar 202602/24/2026, 2:57 PM
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Six Cities Perspective - Policy Spotlight Briefing on Price Formation Enhancements - Mar 202602/24/2026, 2:57 PM
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PGP Perspective - Policy Spotlight Briefing on Price Formation Enhancements - Mar 202602/24/2026, 2:57 PM
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PGE Perspective - Policy Spotlight Briefing on Price Formation Enhancements - Mar 202602/25/2026, 1:14 PM
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EDAM onboarding and implementation update
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Extended Day-Ahead Market Implementation Update - Mar 202602/24/2026, 4:31 PM
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WEIM benefits and market update - Q4 2025
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WEIM Benefits and Market Update - Q4 2025 - Mar 202602/24/2026, 2:57 PM
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Informational reports
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Policy Initiatives Update - Mar 202602/24/2026, 2:57 PM
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WEM Governing Body Budget Report - Q4 2025 - Mar 202602/24/2026, 2:57 PM
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WEM Governing Body Planning Calendar - Mar 202602/24/2026, 2:57 PM
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Consent agenda
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Decision on WEM Governing Body Consent Agenda - Motion - Mar 03, 202603/05/2026, 11:18 AM
- CEO Report - Mar 202602/24/2026, 2:57 PM
- ISO Presentation - Policy Spotlight Briefing on Price Formation Enhancements - Mar 202602/24/2026, 2:57 PM
- Six Cities Perspective - Policy Spotlight Briefing on Price Formation Enhancements - Mar 202602/24/2026, 2:57 PM
- PGP Perspective - Policy Spotlight Briefing on Price Formation Enhancements - Mar 202602/24/2026, 2:57 PM
- PGE Perspective - Policy Spotlight Briefing on Price Formation Enhancements - Mar 202602/25/2026, 1:14 PM
- Extended Day-Ahead Market Implementation Update - Mar 202602/24/2026, 4:31 PM
- WEIM Benefits and Market Update - Q4 2025 - Mar 202602/24/2026, 2:57 PM
- Policy Initiatives Update - Mar 202602/24/2026, 2:57 PM
- WEM Governing Body Budget Report - Q4 2025 - Mar 202602/24/2026, 2:57 PM
- WEM Governing Body Planning Calendar - Mar 202602/24/2026, 2:57 PM
- Decision on WEM Governing Body Consent Agenda - Motion - Mar 03, 202603/05/2026, 11:18 AM
03/03/2026
9:30 AM - 12:30 PM
Online
WEM Governing Body Executive Session
Related documents
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Final Agenda - WEM Governing Body Meeting - Mar 03-04, 202602/27/2026, 10:47 AM
12/16/2025
1:00 PM - 4:00 PM
Online
WEM Governing Body General Session
Related documents
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Revised Final Agenda - WEM Governing Body Meeting - Dec 16-17, 202512/15/2025, 10:52 AM
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Video - WEM Governing Body General Session - Dec 16, 202512/18/2025, 5:19 PM
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Department of Market Monitoring Update - Sep 202509/03/2025, 1:44 PM
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Final WEM Governing Body - General Session Minutes - Dec 16, 202503/04/2026, 12:06 PM
12/16/2025
9:00 AM - 12:30 PM
Online
WEM Governing Body Executive Session
Related documents
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Revised Final Agenda - WEM Governing Body Meeting - Dec 16-17, 202512/15/2025, 10:52 AM
10/28/2025
1:00 PM - 4:00 PM
In-person
Online
WEM Governing Body General Session
Related documents
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Related documents - WEM Governing Body meeting - Oct 28, 202511/19/2025, 4:55 PM
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Final Minutes - WEM Governing Body General Session - Oct 28-202512/18/2025, 4:34 PM
09/09/2025
1:00 PM - 3:00 PM
Online
WEM Governing Body General Session
Related documents
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Department of Market Monitoring Update - Sep 202509/03/2025, 1:44 PM
09/09/2025
9:15 AM - 12:30 PM
Online
WEM Governing Body Executive Session
Related documents
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Final Agenda - WEM Governing Body - Sep 09-10, 202509/04/2025, 8:27 AM
07/22/2025
1:00 PM - 4:30 PM
Online
WEM Governing Body General Session
Related documents
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Final Agenda - WEM Governing Body Meeting - Jul 22-23, 202507/17/2025, 9:59 AM
07/22/2025
9:00 AM - 12:15 PM
Online
WEM Governing Body Executive Session
Related documents
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Final Agenda - WEM Governing Body Meeting - Jul 22-23, 202507/17/2025, 9:59 AM
06/18/2025
1:00 PM - 3:30 PM
In-person
Online
WEM Governing Body General Session
Related documents
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Final Agenda - WEM Governing Body Meeting - Jun 18, 202506/11/2025, 8:22 AM
06/18/2025
8:30 AM - 12:00 PM
In-person
Online
WEM Governing Body Executive Session
No documents associated with this event.
05/20/2025
1:00 PM - 3:15 PM
In-person
Online
WEM Governing Body General Session
Related documents
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Final Agenda - WEM Governing Body Meeting - May 20-21, 202505/16/2025, 8:27 AM
05/20/2025
9:00 AM - 12:15 PM
In-person
Online
WEM Governing Body Executive Session
No documents associated with this event.
04/08/2025
10:00 AM - 12:00 PM
Online
WEM Governing Body General Session
Related documents
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Revised Final Agenda - WEM Governing Body meeting - Apr 08, 202504/02/2025, 10:42 AM
03/25/2025
1:30 PM - 4:15 PM
Online
WEM Governing Body General Session
Related documents
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Final Agenda - WEM Governing Body Meeting - Mar 25-26, 202503/20/2025, 8:15 AM
03/25/2025
9:00 AM - 12:45 PM
Online