Training Questions and Comments Training Question/Comment ISO Response Entity Ensure the resource sufficiency test The RST is applied equally to all BAAs that BPA (RST) is equitably tested and enforced are participating in the EIM. Chelan upon all EIM BAAs. Portland Powerex WPTF The capacity test should be applied to The capacity test is applied to all entities for Powerex all hours. Failing the capacity test results in all EIM entities in all hours. the automatic failure of the flexible ramping test. The balancing test allows an EIM entity that elects to use the CAISO forecast to be exempt from the over/under scheduling penalty. If the ISO forecast is used and BAA’s imbalance (determined by comparing the BAA base schedules and the ISO’s demand forecast is within +/- 1%, the over/under scheduling penalty does not apply. If the EIM entity uses its own forecast, the over/under scheduling penalty applies. This is necessary because an entity could elect to submit base schedules as or “long” “short”. The over/under scheduling penalty does not apply to the ISO and will not apply to EDAM entities in the future because there is not an opportunity to determine the amount of imbalance to be met in the real-time market because base schedules are not submitted. The reference for imbalance settlement is the day-ahead schedule. Improve accuracy of resource The intent of the RST is to ensure each EIM Chelan sufficiency requirement to ensure BAA carries adequate capacity to maintain there is no leaning on other EIM the balance between generation and load. entities. This prevents one EIM entity from leaning on another. The ISO is planning to improve the calculation of the flexible ramping requirement. A proposed methodology has been discussed in the Day Ahead Market Enhancements (DAME) initiative.
Training Questions and Comments Training Question/Comment ISO Response Entity Ensure the resource sufficiency test (RST) is equitably tested and enforced upon all EIM BAAs. The RST is applied equally to all BAAs that are participating in the EIM. BPA Chelan Portland Powerex WPTF The capacity test should be applied to all EIM entities in all hours. The capacity test is applied to all entities for all hours. Failing the capacity test results in the automatic failure of the flexible ramping test. The balancing test allows an EIM entity that elects to use the CAISO forecast to be exempt from the over/under scheduling penalty. If the ISO forecast is used and BAA’s imbalance (determined by comparing the BAA base schedules and the ISO’s demand forecast is within +/- 1%, the over/under scheduling penalty does not apply. If the EIM entity uses its own forecast, the over/under scheduling penalty applies. This is necessary because an entity could elect to submit base schedules as “long” or “short”. The over/under scheduling penalty does not apply to the ISO and will not apply to EDAM entities in the future because there is not an opportunity to determine the amount of imbalance to be met in the real-time market because base schedules are not submitted. The reference for imbalance settlement is the day-ahead schedule. Powerex Improve accuracy of resource sufficiency requirement to ensure there is no leaning on other EIM entities. The intent of the RST is to ensure each EIM BAA carries adequate capacity to maintain the balance between generation and load. This prevents one EIM entity from leaning on another. The ISO is planning to improve the calculation of the flexible ramping requirement. A proposed methodology has been discussed in the Day Ahead Market Enhancements (DAME) initiative. Chelan
RevisedWhitePaper-RealTimeResourceSufficiencyTest.docx