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 Jan. 4, 2023 through Jan. 19, 2023.
New PRRs
PRR 1543 Generator Interconnection and Deliverability Allocation Procedures BPM, Site exclusivity demonstration clarifications
PRR 1544 Generator Interconnection and Deliverability Allocation Procedures BPM, Non-load serving entity power purchase agreement clarifications
PRR 1545 Generator Interconnection and Deliverability Allocation Procedures BPM, Interim Deliverability allocation to projects in operation clarification
ISO recommendations
PRR 1542 Market Operations BPM, Emergency PRR, Addition of regulation attenuation factors associated with the state of charge equation with ancillary impact
ISO final decisions
PRR 1540 Settlements and Billing BPM, Updated multiple configuration guides to accommodate fixing typos in variable names which are otherwise correct in the bill determinate matrix and the settlements system
PRR 1541 Market Operations BPM, Update to allow pseudo-tie resources to be part of co-located aggregate capability constraints
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.
