Updated: BPM change management: Proposed revision requests and updated BPMs posted as of 12/24/24

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. Update to the previous notice posted on Dec. 24, 2024 to correct the PRR links.

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 Dec. 24, 2024 through Jan. 9, 2025.

New PRRs
PRR 1602 Reliability Requirements BPM, Clarification on outage reporting scenarios for non-resource-specific resource adequacy resources

PRR 1603 Scheduling Coordinator Certification and Termination BPM, Updates to training requirements during scheduling coordinator certification process

PRR 1604 Candidate CRR Holder Registration BPM, Updates to training requirements during congestion revenue rights holder registration process

PRR 1605 Generator Management BPM, Interconnection process enhancements 2023 updates and clarifications

PRR 1606 Settlements and Billing BPM, Emergency PRR, Updating start-up costs minimum load costs pre-calc BPM configuration for minimum load costs qualification from advisory shut

PRR 1607 Settlements and Billing BPM, Emergency PRR, Correction for assistance energy transfer calculation of available balance capacity reg up credit

PRR 1608 Settlements and Billing BPM, Emergency PRR, Updating resource adequacy availability incentive mechanism pre-calc configuration to fix limited energy storage resources negative generic availability issue

PRR 1609 Market Instruments BPM, Convergence bidding is not permitted on Intertie nodes

PRR 1610 Market Operations BPM, Stage 2 variable energy resource will be set to self-schedule only until the resource is a Stage 3 variable energy resource

PRR 1611 Market Operations BPM, Convergence bidding is not permitted on Intertie nodes

PRR 1612 Market Operations BPM, Stage 2 variable energy resource and aggregate capability constraints limits

PRR 1613 Market Operations BPM, Market issue that resources providing regulation were going off automatic generation control early to ramp to new dispatch operating target

ISO Recommendations

PRR 1599 Direct Telemetry BPM, Critical telemetry points

PRR 1600 Rules of Conduct Administration BPM, Rules of Conduct penalty enhancements: demand response, investigation, tolling revisions

PRR 1601 Scheduling Coordinator Certification and Termination BPM, Emergency PRR, Updated 24/7 grid test requirements for existing scheduling coordinators

ISO Final Decisions

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

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.