This initiative will review the need for additional Energy Imbalance Market (EIM) default energy bid options, reference level adjustment request changes, updates to the calculation of competitive locational marginal prices, and updates to the mitigation tool. The potential market changes would apply to the entire ISO market, not just EIM. These topics were initially discussed at the EIM Offer Rules stakeholder working group meetings.
Outcome: This project included four elements to address cases of mitigation. The mitigation framework enhancements introduced an optional rule for EIM Balancing Authority Areas to limit transfer quantities or avoid cases of economic displacement. Further modifications included modifying the mitigation framework to eliminate the balance of the 15-minute market and balance-of-the-hour mitigation, with reexamination and application of the competitive Locational Marginal Price at every interval. The project included the creation of a new default energy bid for hydro resources with storage capability. Changes were also made to the reference level adjustment process originally established within the Commitment Cost and Default Energy Bid Enhancements initiative. Lastly, the project made enhancements to the gas price indices used for Mondays.
| Proposal Development | Decision | Implementation | Completed/Closed |
|---|---|---|---|
|
May 24, 2019 Revised draft tariff language
Feb 01, 2019 Draft final proposal |
Nov 20, 2019 Local Market Power Mitigation Enhancements Effective Date Notification (ER19-2347)
Sep 30, 2019 FERC approval (ER19-2437) Jul 02, 2019 Tariff amendment filing (ER19-2347) Mar 27, 2019 Board of Governors approval Mar 12, 2019 EIM Governing Body approval |
Nov 13, 2019 Deployment
Nov 2019 Activation |
Completed |