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 Dec. 6, 2022 through Dec. 20, 2022.
New PRRs
PRR 1471 Market Operations BPM, Updates for hybrid resources phase 2b policy initiative**
PRR 1473 Market Operations BPM, Flexible ramping product deliverability**
PRR 1474 Market Instruments BPM, Flexible ramping product deliverability**
PRR 1476 Settlements and Billing BPM, Emergency PRR, Updated configuration guides to accommodate configuration issue related to participating transmission owner leaving CAISO Market mid-month
PRR 1477 Transmission Planning Process BPM, Transmission Planning Process Enhancements
PRR 1478 Market Operations BPM, Removal of 50% spinning ancillary service procurement requirement
PRR 1479 Market Instruments BPM, Added description of the residual unit commitment under supply infeasibility and enforced constraints report
PRR 1480 Market Instruments BPM, Updated section on hydro default energy bid submissions to provide more guidance WEIM entities
PRR 1481 Settlements and Billing BPM, Emergency PRR, Settlement configuration changes from market sim review to support hybrid resources phase 2B initiative and ensure non-hybrid resources selecting CAISO forecast receive forecast fee.
** These PRRs were put back in the initial phase from previous phase.
ISO Recommendations
PRR 1475 Reliability Requirements BPM, Central procurement entity project
ISO Final Decisions
PRR 1466 Market Operations BPM, Reliability demand response resource enhancements Phase 2
PRR 1467 Market Instruments BPM, Reliability demand response resource enhancements phase 2 supporting resource data template Changes
PRR 1468 Energy Imbalance Market BPM, Small changes to unaccounted for energy and resource sufficiency evaluation demand response attestation forms
PRR 1469 Rules of Conduct Administration BPM, Renaming of tariff section 37.5.2
PRR 1470 Generator Management BPM, Updates to accommodate how the CAISO publishes queue management-related study results
PRR 1472 Demand Response BPM, Updates to section 15 of the demand response BPM
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.
