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 May 31, 2023 through June14, 2023.
New PRRs
PRR 1508 Reliability Requirements BPM, Clarifications to new use import commitment submission and processing
PRR 1509 Outage Management BPM, Use limit reached outage cards
PRR 1510 Market Operations BPM, Clarifications regarding use-limited resources
PRR 1511 Market Instruments BPM, Clarifications regarding the use limit plan data template and opportunity costs for use-limited resources
PRR 1512 Generator Management BPM, Updates to battery energy storage system conversions, modification submissions, and phased generating facility clarification
PRR 1513 Managing Full Network Model BPM, Full network model scope change management process update
PRR 1514 Reliability Requirements BPM, 2024 Availability assessment hours
ISO Recommendations
PRR 1491 Settlements and Billing BPM, Updated BPM configuration guide for pre-calculation real time market net amount v5.37 to accommodate ancillary service state of charge constraint initiative
PRR 1492 Settlements and Billing BPM, Created two new charge codes in accordance with the resource sufficiency evaluation enhancement phase 2 initiative
PRR 1493 Settlements and Billing BPM, Updated BPM configuration guide for charge group pre-calculation system resource deemed delivered energy quantity to accommodate logical meter calculator scenarios where the electronic tag is curtailed mid-hour
PRR 1494 Settlements and Billing BPM, Updated charge group pre-calculation metered subsystems deviation penalty quantity to accurately account for resources with spinning/non-spinning capacity dispatches outside contingency intervals
PRR 1495 Settlements and Billing BPM, Updated multiple BPM configuration guides to accommodate market services production allocating one sided charge or payment neutrality adjustments to measured demand in charge code 8989 and charge code 8999 while also achieving revenue neutrality
PRR 1496 Market Instruments BPM, Updating fuel region prices
PRR 1497 Market Operations BPM, Interchange tagging changes related to resource sufficiency evaluation enhancement phase 2 project
PRR 1498 Energy Imbalance Market BPM, Assistance transfer energy
PRR 1499 Settlements and Billing BPM, Updated BPM configuration guide for charge code 701 forecasting service fee 5.6 to accommodate hybrid 2C initiative
PRR 1500 Market Instruments BPM, Open access same time information system and CAISO market results interface report changes for resource sufficiency evaluation enhancements phase 2 project
PRR 1501 Market Operations BPM, Updates details and requirements for hybrid dynamic limits
PRR 1502 Market Instruments BPM, Clarifications to component level dispatchable flag
PRR 1505 Market Operations BPM, Emergency PRR, Refinements to penalty pricing improvements identified from last summer
PRR 1506 Energy Imbalance Market BPM, Emergency PRR, Western energy imbalance market Washington greenhouse gas enhancements
PRR 1507 Market Instruments BPM, Emergency PRR, Western energy imbalance market Washington greenhouse gas enhancements
ISO Final Decisions
PRR 1490 Reliability Requirements BPM, Clarification for pumping load bidding rule
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.
