BPM change management: Proposed revision requests and updated BPMs posted as of 10/29/24

The California ISO has posted new Proposed Revision Requests (PRRs) reflecting edits to Business Practice Manuals (BPMs). Revised BPMs that have completed the BPM change management process are posted in the BPM Library. All PRRs and related activity are publicly available through the BPM change management site.

BPM PRR updates are part of the ISO Daily Briefing in addition to being listed in the “Announcement” sections of the BPM change management tool. These updates include PRRs that have become available for review, upcoming BPM meetings, and comment due dates. All registered BPM users should continue to reference the BPM Change Management tool to see current PRR status. Subscribe to the Daily Briefing to stay up to date.

The PRRs listed below have an open 10-business day comment or appeal period from Oct. 29, 2024 through Nov. 12, 2024.

New PRRs

PRR 1595 Reliability Requirements BPM, 2025 Availability Assessment Hours

PRR 1597 Market Operations BPM, Clarifications to the high sustainable limit

PRR 1598 Market Instruments BPM, Clarification on OASIS posting of CAISO system demand

ISO Recommendations

PRR 1590 Market Operations BPM, Scheduling coordinator responsibilities for FERC 2222 distributed curtailed resources and distributed energy resource aggregation resources

PRR 1591 Market Instruments BPM, Emergency PRR, Updates to the hourly energy shaping factor from the price formation enhancements phase 2 initiative

PRR 1592 Market Instruments BPM, Addition of new price correction summary report on OASIS

PRR 1593 Market Operations BPM, Change to price correction reporting

PRR 1594 Energy Imbalance Market BPM, Change the load base schedule calculation used in the settlement of WEIM resource sufficiency evaluations

ISO Final Decisions

PRR 1582 Reliability Requirements BPM, Clarifications and clean-up for resource adequacy and supply plan uploads

PRR 1583 Settlements and Billing BPM, Update configuration guide for CC 6976 to implement amended LOA for COTP losses pricing for WAPA and parties

PRR 1584 Settlements and Billing BPM, Update configuration guide for resource adequacy availability incentive mechanism pre-calc to fix limited energy storage resource adequacy generic availability and flexible obligation calculations issue

PRR 1585 Settlements and Billing BPM, Updated BPM configuration guide for pre-calc wheel export quantity to accommodate summing over attribute which is conflicting with existing business drivers

PRR 1586 Market Instruments BPM, Addition of two new fields to GRDT to support FERC Order 2222

PRR 1587 Market Operations BPM, Process for off grid charging indicator election

PRR 1588 Demand Response BPM, Updates related to FERC Order 2222

PRR 1589 Scheduling Coordinator Certification and Termination BPM, Updating information to add the extended day ahead market to the application

BPM Library Updates

The PRR tracking log on the ISO website lists the updated BPMs in the library.

The ISO may unilaterally make and implement revisions to the BPMs in emergency circumstances, as set forth in Sections 22.4.3 and 22.11 of the ISO Tariff and in Section 2.6 of the Business Practice Manual for BPM Change Management. An emergency PRR will continue through the BPM change management stakeholder process to obtain stakeholder input on the revisions and make other recommendations, as necessary.

Please note that affected parties must register in order to submit a PRR or written comments.

More information on the BPM change management process is available on the BPM webpage of the ISO website.

Contact information

Please contact Nicole Hines at 916-597-8108 or BPM_CM@caiso.com with any questions.