In 2015, the ISO formed a transitional committee, comprised of stakeholders from across the West, to develop a governance structure for the Western Energy Imbalance Market (WEIM). The WEIM’s growth has resulted in additional economic, reliability, and environmental benefits. In response to a continuously evolving energy market and expanding footprint, the ISO Board of Governors and WEIM Governing Body created a Governance Review Committee to develop and propose refinements to the WEIM’s governance. Formalized in the Transitional Committee and Governance Review Committee charters, western stakeholders created and continue to improve the governance framework that established the Governing Body, the Body of State Regulators, and the Regional Issues Forum.

Governance foundational documents 

Nominating committee

Nominees for the WEIM governing body are identified by a nominating committee comprised predominantly of stakeholders as vacancies occur. The first candidate slate was approved by the ISO Board of Governors on June 28, 2016, and all future nominations will be approved by the WEIM Governing Body. For more information about the nominating committee or its current members, use the links below.

Governance development  

Governance Review Committee

This temporary advisory group provides recommendations to the WEIM Governing Body and the California ISO Board of Governors regarding WEIM governance matters.


WEIM Governance Development

This 2014 effort developed a long-term governance structure on WEIM issues.


WEIM Transitional Committee

The transitional WEIM stakeholder advisory committee developed a long-term WEIM governance structure proposal and advised the Board of Governors on the final testing and the early operational phase of the WEIM.


WEIM Foundation

The California ISO worked extensively with stakeholders to provide Western Energy Imbalance Market (WEIM) services to other balancing authorities in the west.