Related Files
Status
Board Adopted: February 15, 2024
Filed with FERC: March 8, 2024
Background
The SAR states that the current definition of Reporting Area Control Error (ACE) presents a conflict with the Western Interconnection's Automatic Time Error Correction (ATEC) process and does not allow other Interconnections to pursue ATEC. Additionally, there is confusion in that the terms ACE and Reporting ACE are both used throughout the standards. A revised definition should provide improve long-term average frequency performance as well as give other Interconnections the ability to pursue automatic correction approaches.
Standard(s) Affected: Multiple standards reference the Reporting ACE definition, including BAL.
Modified - Interchange Meter Error -(IME) This ballot was set up in the system as additional vs. final. The results were verified in accordance with the SPM for final ballots.
Retirement - Net Actual Interchange This term should not have been balloted for final approval. It will not proceed to Board adoption/regulatory approval.
All other ballot results are correct and can be accessed here:
New - ACE Diversity Interchange (ADI)
New - Inadvertent Interchange Management (IIM)
Modified - Actual Net Interchange (NIA)
Modified - Area Control Error (ACE)
Modified - Automatic Time Error Correction (ATEC)
Modified - Balancing Authority Area (BAA)
Modified - Balancing Contingency Event (BCE)
Modified - Control Performance Standard (CPS)
Modified - Disturbance
Modified - Dynamic Interchange Schedule or Dynamic Schedule
Modified - Frequency Bias Setting (FBS)
Modified - Frequency Error
Modified - Implemented Interchange
Modified - Inadvertent Interchange
Modified - Operating Reserve – Spinning
Modified - Operating Reserve – Supplemental
Modified - Overlap Regulation Service
Modified - Pseudo-Tie
Modified - Ramp Rate or Ramp
Modified - Regulation Service
Modified - Reportable Balancing Contingency Event (RBCE)
Modified - Reporting Area Control Error (Reporting ACE)
Modified - Reserve Sharing Group (RSG)
Modified - Reserve Sharing Group Reporting ACE
Modified - Scheduled Frequency
Modified - Scheduled Net Interchange (NIS)
Modified - Supplemental Regulation Service
Modified - Tie Line Bias (TLB)
Modified - Time Error (TE)
Modified - Time Error Correction (TEC)
Retirement - Disturbance Control Standard
Retirement - Net Interchange Schedule
Retirement - Net Scheduled Interchange
Retirement - Reportable Disturbance
Implementation Plan
New - Inadvertent Interchange Management (IIM)
Modified - Actual Net Interchange (NIA)
Modified - Area Control Error (ACE)
Modified - Control Performance Standard (CPS)
Modified - Frequency Error
Modified - Interchange Meter Error (IME)
Modified - Regulation Service
Modified - Reporting Area Control Error (Reporting ACE)
Retirement - Net Actual Interchange
Drafting Team Nominations
Supporting Materials
Unofficial Nomination Form (Word)
Standard Authorization Request
Unofficial Comment Form (Word)
