Revised RC West operating procedures will be posted 6/26/2025

RC West will post revised operating procedures on June 26, 2025.

RC0100 Reliability Coordinator Authority, version 2.1, effective June 27, 2025. 

Periodic Review: Added References section and included North American Electric Reliability Corporation (NERC) IRO-002-7 and minor punctuation edits for Real-Time.

RC0120 Guidelines for RC West IRO-010 Data Specification and Collection, version 5.6, effective July 1, 2025. 

Annual Review: Updated Section 3.5 on performance criteria based on discussions with Data Exchange Working Group (DEWG) on 2/5/2025 and RC-RC IRO-010 subgroup. Updated from RC real-time “desk” to “dispatcher” in Sections 3.7.1 and 3.7.2. Removed undefined asterisk (*) from Section 3.7.6.10. Added information to scope Section 2.2 that data provided to CAISO is shared with CAISO RC, same language as is in CAISO Balancing Authority (BA)/Transmission Operator (TOP) Operating Procedure 3140. Updated version numbers for NERC Standards IRO-010 and PRC-002. Minor formatting and grammar/punctuation edits and removed history prior to five years. 

RC0120A RC West IRO-010 Data Specification, version 6.6, effective July 1, 2025. 

Annual Review: Updated data request 6.8.2 to extreme weather template to remove NERC Alert 3 language and add reference to EOP-012-1 effective 10/1/2024. Updated data request 6.10.2 as Federal Energy Regulatory Commission (FERC) 881 mapping can now be submitted via a Common Information Model (CIM) file. Updated data request 6.23 to remove CIM file as a method of submitting information as the RC Data Gathering Template has Resource Description Framework Identifier (RDFID)s to map to the equipment. Added Reference Section in Version History tab to include NERC Requirements IRO-010-4 and PRC-002-4. Added columns for Data Validation Method, Performance Criteria, and Last Revision Date. Removed Note for Req. 2.15 since NERC Standard is inactive and this no longer applies. Updated NERC Standard version numbers, where applicable. Updated Exclusion information for Req. 1.13 & 1.15 and included LS Power Grid California (LSPGC) in Exceptions tab. Extended FERC 881 data requests and included series devices. Minor formatting and punctuation edits for consistency and removed history prior to five years. 

RC0120B RC West IRO-010 Data Specification for Adjacent RCs, version 4.6, effective July 1, 2025. 

Annual Review: Added columns for Data Validation Method and Last Revision Date in main Data Specifications tab. Added References section in Version History tab to include NERC Requirements. Extended effective dates for FERC 881 data requests to 1/1/2026. Minor formatting and punctuation edits for consistency. Removed history prior to five years.

RC0120C ICCP (Inter-Control Center Communications Protocol) or PMU (Phasor Measurement Unit) Data Request Procedure, version 3.4, effective July 1, 2025. 

Annual Review: Updated Sections 3.1, Item 1 and 32, Item 1 for PMU Registry data availability. Updated Operationally Affected Parties language.

RC0430A EOP-010 Plan Review Checklist, version 1.4, effective June 27, 2025.

Periodic Review: Defined Geomagnetic Disturbance (GMD) in Purpose section. Updated Operationally Affected Parties to align with other Plan Review Checklist procedures.

RC0610 System Operating Limits Methodology for the Operations Horizon, version 3.2, effective June 27, 2025.

Added a clarification for less stringent Credible Multiple Contingencies (CMC) performance requirement. Updated NERC Standard versions for EOP-011 and IRO-010 reference version numbers. Minor formatting and grammar edits.

The ISO and RC West operating procedures are available on the Operating Procedures webpage.