The California ISO has posted an updated External Business Requirements Specification (BRS) for the Generator Contingency and Remedial Action Scheme Modeling (GCARM) project to document the following scope changes:
- Removed Partial Injection Outage functionality from the GCARM type of preventive contingency, however it was kept in the Appendix formulation for aggregate market resource model.
- Replaced “same Balancing Authority Area (BAA)” with “entire market” for virtual bidding lost injection allocation.
- Added Business Requirements related to Generation Flow Factor (GFF) broadcast consumption, storage and reporting.
- Used Maximum Generation (Load) MW Level (Pmax) derates for Generation Distribution Factor (GDF) calculations.
- Added functionality for the treatment of Virtual Schedules.
- Added requirement for topology processor to identify lost injection from switch positions.
- Market Applications and Congestion Revenue Rights (CRR) to consume Frequency Response (FR) Flag on physical resources level.
- Updated CRR GDF calculation to account for entire western region.
- Added requirement clarification notes to multiple Business Requirements.
- Added internal ISO requirements and enhancements.
The External BRS is available on the ISO website at http://www.caiso.com/Documents/BusinessRequirementsSpecification-GeneratorContingencyAndRemedialActionSchemeModeling.pdf.
