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 to stay up to date.
The PRRs listed below have an open 10-business day comment or appeal period from May 3, 2022 through May 17, 2022.
New PRRs
PRR 1431 Settlements and Billing BPM, Emergency PRR, Updated CC 6046 over and under scheduling western energy imbalance market allocation to accommodate resource sufficiency evaluation enhancements phase 1
PRR 1432 Market Operations BPM, Addition of 15 interval threshold to regulation service minimum performance testing
PRR 1433 Market Operations BPM, Enforcement of aggregate capability constraints
PRR 1434 Market Instruments BPM, Proxy demand response resource bidding above $1000 energy bid cap
PRR 1435 Settlements and Billing BPM, Update configuration guide to match settlements BPM formula on virtual bid adjustment for western energy imbalance market balancing authority areas as configured
PRR 1436 Settlements and Billing BPM, Updated BPM configuration guide for charge code 4575 to clarify business rule 4.1 exclusions covering flexible ramping
PRR 1437 Settlements and Billing BPM, Updates to BPM for new settlement timeline
PRR 1438 Demand Response BPM, Resource sufficiency evaluation enhancements
PRR 1439 Market Instruments BPM, Emergency PRR, New CAISO market results interface, and open access same time information system reports for resource sufficiency evaluation and transmission service and market scheduling priorities project
PRR 1440 Energy Imbalance Market BPM, Emergency PRR, Enhancements to the resource sufficiency evaluation tests per the resource sufficiency evaluation enhancement phase 1 project
ISO Recommendations
PRR 1412 Scheduling Coordinator Certification and Termination BPM, Emergency PRR, Updating energy imbalance market acronym and adding sub entity to application
PRR 1413 Market Operations BPM, Small updates to align with CAISO move from alert, warning or emergency notice staged alerts to NERC EEA emergency language
PRR 1414 Market Instruments BPM, Change to short and long start definitions
PRR 1415 Market Operations BPM, Change to short and long start definitions
PRR 1417 Generator Interconnection and Deliverability Allocation Procedures BPM, Updating section 6.1.5.1 title to "Notifying the CAISO and affected Participating TO(s) for a study“ and adding process details and links to associated documents
PRR 1419 Settlements and Billing BPM, Updated charge code 6456 to implement changes related to the Tariff clarification filing
PRR 1420 Generator Interconnection and Deliverability Allocation Procedures BPM, Eliminate the use of the least squares methodology for allocating deliverability
PRR 1421 Settlements and Billing BPM, Updated multiple BPM configuration guides to accommodate invoicing issues discovered during functional testing of shortfall charge codes that have never been run in settlements production since their inception
PRR 1422 Settlements and Billing BPM, Updated multiple BPM configuration guides for charge code 6045 over and under scheduling western energy imbalance market settlement and 6046 over and under scheduling western energy imbalance market allocation to accommodate MIAF 2021-100
PRR 1423 Reliability Requirements BPM, Contract management 2021 updates
PRR 1424 Reliability Requirements BPM, Short-long start definitions update
PRR 1425 Settlements and Billing BPM, Updated charge code pre calc metered subsystem deviation quantity to capture spin/non-spin instructed imbalance energy under scenarios where the resource was exceptionally dispatched in a non-contingency interval
PRR 1426 Settlements and Billing BPM, Update configuration guides to support short-long start unit definitions update initiative
PRR 1427 Settlements and Billing BPM, Updated BPM for settlements and billing to accommodate aligning with annual FERC settlement process defined in charge codes 550 and 551 FERC fee settlement
PRR 1428 Generator Interconnection Procedures BPM, Contract management enhancement updates for modifications and re-studies for serial projects
PRR 1429 Market Operations BPM, Guidance for scheduling coordinators to register high priority wheels
PRR 1430 Generator Management BPM, 2021 Contract management enhancements initiative updates
ISO Final Decisions
PRR 1402 Market Instruments BPM, Updates to after-market cost recovery and reference level calculator change requests for Extremely Long Start resources
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
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.
