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. Click here to sign up for the Daily Briefing.
The PRRs listed below have an open 10-business day comment or appeal period from February 1, 2022 through February 15, 2022.
| New PRRs |
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| 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 |
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| ISO Recommendations |
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| 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 |
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| ISO Final Decisions |
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| PRR 1394 |
Settlements and Billing BPM, Emergency PRR, Updated BPM Configuration guide for charge code 4575 to clarify business rule 4.1 exclusions and variable name. |
| PRR 1395 |
Market Operations BPM, Interchange transactions and electronic tagging |
| PRR 1396 |
Market Operations BPM, Emergency PRR, Base schedule submission deadline |
| PRR 1397 |
Settlements and Billing BPM, Updates to BPM for tariff amendment adjusting the meaning of business day (FERC Filing ER21-2854-000) |
| PRR 1398 |
Settlements and Billing BPM, Update BPM configuration guides to support the day ahead nodal pricing model phase 2 ancillary services Initiative |
| PRR 1399 |
Settlements and Billing BPM, Updated multiple BPM configuration guides to accommodate settling WAPA/TANC Contract 05-SNR-00869 |
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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.
