Initiatives testing
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
For an overarching view of where each initiative is in the development process, view the Policy Initiatives Timeline (updated weekly).
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.
Initiate
Prioritize objectives and initiatives to develop roadmap
Scope
Define opportunities and scope to reflect diverse goals and objectives
Develop
Stakeholders collaborate to develop solutions and final proposal
Decide
Obtain governance approvals and submit FERC filing as required
Implement
Complete customer readiness, market simulation and go-live
Changing this filter updates the initiatives table below by status.
| Title | Proposal Development | Decision | Implementation |
|---|---|---|---|
Initiatives Status is currently unavailable, please try again later | |||
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.
Completed initiatives and activities
- Real-time settlement review (E3) 11/15/2025, 11:40 AM
- Generator contingency and remedial action scheme modeling (E1) 11/15/2025, 11:40 AM
- Flexible ramping product refinements (E2) 11/15/2025, 11:40 AM
- Minimum state of charge extension 11/15/2025, 11:40 AM
- Commitment costs and default energy bid enhancements (E2) 11/15/2025, 11:40 AM
- Hybrid resources (E2) 11/15/2025, 11:40 AM
- Pseudo-ties of shared resources (E3) 11/15/2025, 11:40 AM
- Storage bid cost recovery and default energy bids enhancements 11/15/2025, 11:40 AM
- Western EIM base schedule submission deadline (E1) 11/15/2025, 11:40 AM
- Local market power mitigation enhancements 2018 (E1, E2) 11/15/2025, 11:40 AM
- Market settlement timeline (E2) 11/15/2025, 11:40 AM
- Aliso Canyon gas-electric coordination phase 3 (E1, E2) 11/15/2025, 11:40 AM
- Adjustment to intertie constraint penalty prices 11/15/2025, 11:40 AM
- Intertie deviation settlement (E2) 11/15/2025, 11:40 AM
- Energy storage and distributed energy resources phases 2, 3 and 4 (E2) 11/15/2025, 11:40 AM
- Metering rules enhancements 11/15/2025, 11:40 AM
- Imbalance conformance enhancements (E1) 11/15/2025, 11:40 AM
- EIM governance review activity 11/15/2025, 11:40 AM
- Ancillary service state of charge constraint 11/15/2025, 11:40 AM
- FERC Order 831 - Import bidding and market parameters (E2) 11/15/2025, 11:40 AM
- Reliability demand response resource bidding enhancements phases 1 and 2 (Joint authority) 11/15/2025, 11:40 AM
- Rules of conduct enhancements 11/15/2025, 11:40 AM
- Real-time market neutrality settlement (E1) 11/15/2025, 11:40 AM
- Washington WEIM greenhouse gas enhancements 11/15/2025, 11:40 AM
- Market parameter changes enhancements 11/15/2025, 11:40 AM
- Energy storage enhancements 11/15/2025, 11:40 AM
- Short-long start unit definitions update 11/15/2025, 11:40 AM
- Variable operations and maintenance cost review 2023 11/15/2025, 11:40 AM
- Regional integration and EIM greenhouse gas compliance (E1) 11/15/2025, 11:40 AM
- Energy Imbalance Market year 1 enhancements 11/15/2025, 11:40 AM
- Consolidated energy imbalance market initiatives (E1) 11/15/2025, 11:40 AM