The California ISO has posted new Proposed Revision Requests (PRRs) reflecting edits to Business Practice Manuals (BPM). 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 for updates.
The PRRs listed below have an open 10-business day comment or appeal period from March 1, 2022 through March 15, 2022.
New PRRs
PRR 1406 Market Operations BPM, Emergency PRR, Activation of minimum constraint in real time dispatch
PRR 1407 Transmission Planning Process BPM, Emergency PRR, Implementation of the outcome resulting from the maximum import capability
PRR 1408 Reliability Requirements BPM, Emergency PRR, Implementation of the outcome resulting from the maximum import capability
PRR 1409 Settlements and Billing BPM, Update configuration guides to reflect fix to reliability must run adjustments for startup cost
PRR 1410 Settlements and Billing BPM, Update configuration guides to reflect joint-owned units pilot initiative settlement
PRR 1411 Market Operations BPM, Update to penalty prices used to determine when the security constrained unit commitment and security constrained economic dispatch software will relax an enforced transmission constraint
ISO Recommendations
PRR 1402 Market Instruments BPM, Updates to after-market cost recovery and reference level calculator change requests for Extremely Long Start resources
PRR 1403 Market Operations BPM, Treatment of expected energy for non-participating energy imbalance market resources
PRR 1404 Market Operations BPM, Market operations BPM edits related to energy storage and distributed energy resources phase 4 cleanup
PRR 1405 Market Instruments BPM, Market instruments BPM edits related to energy storage and distributed energy resources phase 4 cleanup
ISO Final Decisions
PRR 1400 Credit Management and Market Clearing BPM, Revisions to section 8.4.1 related to market participants leaving the market or incurring substantial activity level changes
PRR 1401 Candidate CRR Holder Registration BPM, Additional information for CRR holders terminating agreements
BPM Library updates
The reference document 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.
