R # Time VRF Violation Severity Levels Horizon Lower VSL Moderate VSL High VSL Severe VSL R3 Real-Time Medium The Balancing The Balancing The Balancing The Balancing Operations Authority operated Authority operated Authority operated Authority operated during a calendar during a calendar during a calendar during a calendar quarter without ATEC quarter without ATEC quarter without ATEC quarter without ATEC in service for more in service for more in service for more in service for more than an accumulated than an accumulated than an accumulated than an accumulated 24 hours, but less than 72 hours, but less than 120 hours, but less 168 hours. or equal to 72 hours. or equal to 120 hours. than or equal to 168 hours R4 Operations Medium The Balancing The Balancing The Balancing The Balancing Authority did not Authority did not Authority did not Authority did not Assessment compute PIIhourly, compute PIIhourly, compute PIIhourly, compute PIIhourly, PIIaccum, and IATEC PIIaccum, and IATEC PIIaccum, and IATEC PIIaccum, and IATEC within 50 minutes, but within two hours, but within four hours, but within six hours. made the required made the required made the required calculations in less calculations in less calculations in less than or equal to two than or equal to four than or equal to six hours. hours. hours. R5 Real-Time Medium N/A N/A N/A The Balancing Operations Authority is not able to change its AGC operating mode between Flat Frequency (for blackout restoration; Flat Tie Line (for loss of frequency
R # Time Horizon VRF Violation Severity Levels Lower VSL Moderate VSL High VSL Severe VSL R3 Real-Time Operations Medium The Balancing Authority operated during a calendar quarter without ATEC in service for more than an accumulated 24 hours, but less than or equal to 72 hours. The Balancing Authority operated during a calendar quarter without ATEC in service for more than an accumulated 72 hours, but less than or equal to 120 hours. The Balancing Authority operated during a calendar quarter without ATEC in service for more than an accumulated 120 hours, but less than or equal to 168 hours The Balancing Authority operated during a calendar quarter without ATEC in service for more than an accumulated 168 hours. R4 Operations Assessment Medium The Balancing Authority did not compute PIIhourly, PIIaccum, and IATEC within 50 minutes, but made the required calculations in less than or equal to two hours. The Balancing Authority did not compute PIIhourly, PIIaccum, and IATEC within two hours, but made the required calculations in less than or equal to four hours. The Balancing Authority did not compute PIIhourly, PIIaccum, and IATEC within four hours, but made the required calculations in less than or equal to six hours. The Balancing Authority did not compute PIIhourly, PIIaccum, and IATEC within six hours. R5 Real-Time Operations Medium N/A N/A N/A The Balancing Authority is not able to change its AGC operating mode between Flat Frequency (for blackout restoration; Flat Tie Line (for loss of frequency