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October 30, 2020


Request for Comment


Legal & Regulatory

BPM Change Management: Proposed Revision Requests and Updated BPMs Posted as of 10/30/20


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 at


New Feature: BPM PRR updates will now be part of the ISO Daily Briefing in addition to being listed in the “Announcement” sections of the BPM change management tool. These updates will 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. To sign up for the Daily Briefing, please go to:


The PRRs listed below have an open 10-business day comment or appeal period from Oct. 30, 2020 through Nov. 13, 2020.


New PRRs


PRR 1288 Market Operations BPM, Hybrid resources co-located resources phase 1

PRR 1289 Energy Imbalance Market BPM, Hybrid resources co-located resources phase 1

PRR 1290 Generator Interconnection and Deliverability Allocation Procedures BPM, Clarifications in modifications between phase I and phase II, reliability network upgrades reimbursement, and date in interconnection request for requests in deliverability

PRR 1291 Reliability Requirements BPM, Clarification of maximum deliverability due to the hybrid policy resources phase 1

PRR 1292 CG CC 6455 BPM, To support the Intertie Deviation Settlement imitative, configuration changes to incentivize delivery of awarded energy on interties for more accurate estimates of the net scheduled interchange

PRR 1293 CG PC Real Time Energy Quantity, CG PC Real Time Congestion CG, CC 6985 Real Time Marginal Losses Offset BPM, To support energy imbalance market enhancements 2020, specifically symmetrical wheeling. Configuration changes to real time marginal losses offset, real time energy pre-calc and real time congestion pre-calc

PRR 1294 CG CC 6011 Day Ahead Energy, Congestion, Loss Settlement v5.5CG CC 6790 CRR Balancing Account v5.5CG CC 6947 IFM Marginal Losses Surplus Credit Allocation v5.2CG CC 6630 IFM Bid Cost Recovery Settlement v5.2CG CC 6636 IFM Bid Cost Recovery Tier1 Allocation v5.4aCG CC 6637 IFM Bid Cost Recovery Tier2 Allocation v5.2CG CC 4515 GMC Bid Transaction Fee v5.6CG CC 4560 GMC Market Services Charge v5.5CG CC 4575 GMC Scheduling Coordinator ID Charge v5.0dCG PC NPM Pre-calculation v5.0 BPM, Update settlements configuration guides to implement day ahead nodal pricing model initiative

PRR 1295 CG CC 6470 Real Time Instructed Imbalance Energy Settlement BPM, To support the slow demand response enhancement, documentation changes to include business rule for comparing resource locational marginal price to day ahead bid price for slow demand response resources in cases where exceptional dispatch type of non t-model used to dispatch resource

PRR 1296 CG PC RTM Net Amount v5.34.1CG PC RTM Net Amount v5.35.1 BPM, Configuration adjustment to reliability must run capacity payments to ensure that residual unit commitment costs are considered in the calculation for the combined residual unit commitment and real-time market excess revenues

PRR 1297 CG CC 6046 Over and Under Scheduling EIM Allocation BPM - CG CC 6474 Real-Time Unaccounted for Energy Settlement BPM - CG CC 6788 Real Time Market Congestion Credit Settlement BPM - CG PC Ancillary Services BPM - CG PC Measured Demand Over Control Area Excl MSS Energy BPM - CG PC Measured Demand Over Control Area BPM - CG PC MSS Deviation Penalty Quantity BPM - CG PC MSS Netting BPM - CG PC Real Time Energy Quantity BPM - CG PC ETC TOR CVR Quantity BPM, To support the excess behind the meter production initiative, configuration enhancements to account for new energy measurement type excess behind the meter production and to settle charges to non-participating load.

PRR 1298 Settlements and Billing BPM, Updated settlement and billing business practice manual for market settlements timeline transformation initiative

PRR 1299 CG PC Spin Non-Spin No Pay Quantity 5.20.1 CG PC Spin Non-Spin No Pay Quantity 5.21.1CG PC Spin Non-Spin No Pay Quantity 5.22.1 BPM, Updated business practice manual configuration guide for pc spin non-spin no pay quantity to accommodate a specific fast start scenario not accounted for existing active configuration

PRR 1300 CG CC 6045 Over and Under Scheduling EIM Settlement 5.0aCG CC 6045 Over and Under Scheduling EIM Settlement 5.1bCG CC 6045 Over and Under Scheduling EIM Settlement 5.2b BPM, Updated charge code 6045 over and under scheduling energy imbalance market settlement in the business rules to align with incremental price is applied for under scheduling with current configuration

PRR 1301 Candidate CRR Holder Registration BPM, Candidate congestion revenue rights holder registration fee increase and minor formatting

PRR 1302 Scheduling Coordinator Certification and Termination BPM, Scheduling coordinator registration fee increase and minor formatting


ISO Recommendations


PRR 1282 Market Operations BPM, Emergency PRR, Scheduling of export resources in real time market

PRR 1283 Demand Response BPM, Emergency PRR, Update to section 5.7, and correction to Appendix B and F for energy storage and distributed energy resources 3B

PRR 1284 Generator Interconnection and Deliverability Allocation Procedures BPM, Determining refundable amount of interconnection financial security for withdrawn energy only projects in section 8.10.

PRR 1285 Reliability Requirements BPM, Emergency PRR, Reliability must run credits for legacy reliability must run contracts

PRR 1286 Reliability Coordinator Services BPM, Updates to settlements timeline and overall cleanup and formatting


ISO Final Decisions


PRR 1278 Market Operations BPM, Emergency PRR, Non-generator resource update

PRR 1279 Energy Imbalance Market BPM, Clarification for greenhouse gas allocation for the energy imbalance market

PRR 1280 Reliability Requirements BPM, Local regulatory authority resource adequacy adjustments

PRR 1281 Market Instruments BPM, Energy imbalance market enhancements 2020



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 at


Nicole Hines at 916-608-5862 or

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