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Market Notice

March 3, 2017




Information Only



Information Technology

Market Operations

Market Rules and Design

Market Simulation


Revised Dates for Application Enhancements: AIM ACL Groups and MRI-S Metering, PIRP Application Decommissioning Delayed




The California ISO is deferring: the production activation of the Access Identity Management (AIM) application enhancements and the market simulation for the Market Results Interface - Settlements (MRI-S) Metering application enhancements by one day. The ISO is also delaying the start of market simulation for the Customer Market Results Interface (CMRI) reports that support the decommissioning of the Participating Intermittent Resource Program (PIRP) application.




The time frames for the AIM application Access Control Level (ACL) Groups and MRI-S Metering application enhancements for production and market simulation, respectively, are delayed by one day, from Monday, March 6, to Tuesday, March 7, 2017.


The following sequence of events will govern AIM and MRI-S Metering applications availability over the course of the next few days:


Friday, March 3, 2017

·      The Market and Performance (MAP) stage environment will be closed for market simulation for the MRI-S Metering application.


Monday, March 6, 2017

·      The AIM application in the production environment will be unavailable for the maintenance and implementation of the new ACL group functionality. Please plan accordingly for this extended outage while the application is being upgraded.

·      Please check the Market Participant Portal for updated information regarding specific availability


Tuesday, March 7, 2017

·     The enhanced AIM application, inclusive of ACL group functionality will resume normal availability in production.

·     Enhancements to the MRI-S Metering application requested by the customer partnership group will be available in MAP stage for market simulation.


Thursday, March 9, 2017

·      The market simulation date(s) for the three new CMRI reports supporting the decommissioning of Participating Intermittent Resource Program (PIRP) application will be announced no later than the March 9, 2017 Market Simulation call.




Michael Lucas at 916-351-2470 or

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California Independent System Operator | P.O. Box 639014 | Folsom, CA 95630 | United States