Initiatives

Stakeholder input is essential to ISO planning processes and for the success of new initiatives from policy development to implementation. We are committed to providing ample opportunity for stakeholder input into ongoing policy initiatives to develop enhancements to the Western Energy Imbalance Market (WEIM). As entities join, we anticipate new proposals, and have processes in place to gather stakeholder feedback to ensure we evolve to meet participants’ needs.

Current initiatives

Using links in the table below, users can track policy development milestones, phases, meeting dates, document postings, comments and submission deadlines, and filings and implementation dates for each initiative.

Initiative (links below go to www.caiso.com)	Decisional Classification	Proposal Development	Decision	Implementation
		Process status
Adjustment to intertie constraint penalty prices	WEM Advisory			X
Ancillary service state of charge constraint	Joint Authority			X
Day-ahead market enhancements	WEM Advisory		X
Energy storage enhancements	Joint Authority		X
Extended day-ahead market	Joint Authority		X
Market parameter changes enhancement	WEM Advisory		X
Minimum state of charge extension	WEM Advisory		X
Price formation enhancements	WEM Advisory	X
Resource adequacy enhancements phase 2	WEM Advisory			X
Rules of conduct enhancements	Joint Authority	X
System market power mitigation(inactive)		TBD
Short-long start unit definitions update	Joint Authority			X
Transmission service and market scheduling priorities (formerly External load forward scheduling rights process)	WEM Advisory		X	X
Variable operations and maintenance cost review 2023	Joint Authority	X
Washington WEIM greenhouse gas enhancements	Joint Authority			X
WEIM resource sufficiency evaluation enhancements	Joint Authority			X
WEIM sub-entity scheduling coordinator role (inactive)	E1			X
West-wide governance pathways - step 1		X

Joint Authority: Initiative has at least one element that appears to fall within the joint authority of the Board of Governors and the WEM Governing Body	WEM Advisory: Initiative has at least one element that appears to fall within an advisory role of the WEM Governing Body and the WEM Governing Body does not appear to have joint authority with respect to any part of the initiative	Board: WEM Governing Body does not appear to have any decisional authority for the proposed policy or tariff amendments.
E1: Initiative fell entirely or partly under the WEM Governing Body's primary authority model, which changed to a shared-governance framework in September 2021	E2: Initiative fell entirely or partly under the WEM Governing Body's advisory authority model, which changed to a shared-governance framework in September 2021.