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Market Notice
March 5, 2019


Request for Comment


Business Practice Manuals

BPM Change Management: Proposed Revision Requests and Updated BPMs Posted as of 3/5/19


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


The PRRs listed below have an open 10-business day comment or appeal period from March 5, 2019 through March 19.


New PRRs

PRR 1148 Settlements and Billing BPM, Updated BPM configuration guide for pre-calculation system resource deemed delivered energy quantity 5.3 to ensure ISO dynamic system resources LMC quantity is not derived at twice the value it should be

PRR 1147 Market Operations BPM, Emergency PRR, Conditionally available resource


ISO Recommendations

PRR 1138 Congestion Revenue Rights BPM, Congestion revenue rights 24 hour outage clarification

PRR 1137 Outage Management BPM, Update to language for outages under the 24 hour rule

PRR 1136 Market Operations BPM, Commitment cost enhancement phase 3 BPM changes

PRR 1135 Market Instruments BPM, Commitment cost enhancement phase 3 BPM changes

PRR 1134 Congestion Revenue Rights BPM, Emergency PRR, Generator Contingency and Remedial Action Scheme Modeling Implementation Plan

PRR 1133 Reliability Requirements BPM, Local capacity requirements due to load migration

PRR 1132 Settlements and Billing BPM, Updates to BPM Configuration guides for the settlement and allocation of capacity procurement mechanism to address the automation of annual CPM and a neutrality issue detected in the allocation side of CPM

PRR 1131 Settlements and Billing BPM, Documentation only change for BPM charge code 6706 to show variable name associated in actual configuration

PRR 1130 Settlements and Billing BPM, Update the pre-calculation spin non-spin no pay quantity configuration to properly address fast start units

PRR 1129 Market Instruments BPM, Attachment B sec B.2.2 clarification

PRR 1128 Market Operations BPM, Emergency PRR, FERC Order 844 reports

PRR 1127 Energy Imbalance Market BPM, Emergency PRR, Resource Sufficiency Enhancement 1% tolerance band

PRR 1122 Outage Management BPM, Inappropriate Reporting of Forced Outages

PRR 1121 Reliability Requirements BPM, Removal of inappropriate reporting of forced outages note


ISO Final Decisions

PRR 1119 Market Operations BPM, Treatment of resource outage on startup

PRR 1118 Market Instruments BPM, Emergency PRR, FERC order 844 reports

PRR 1117 Energy Imbalance Market BPM, Imbalance conformance enhancements

PRR 1116 Market Operations BPM, Imbalance conformance enhancement

PRR 1115 Market Instruments BPM, Updating greenhouse gas allowance price inputs and fallback logic


BPM updates

The ISO has posted a document reflecting updated BPMs post to the BPM Library. Click here to view the document, which is located on the ISO website at


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.


Julia Payton at 916-608-1133 or

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California Independent System Operator | P.O. Box 639014 | Folsom, CA 95630 | United States