NERC Vocabulary | complete solution latest 2023/24

NERC Vocabulary | complete solution latest 2023/24 Adjacent Balancing Authority - A BA whose BA area is interconnected with another BA area either directly or via a multi-party agreement or transmission tariff. Adverse Reliability Impact - The impact of an event that results in frequency-related instability, unplanned tripping of load or generation, or uncontrolled separation or cascading outages that affect a widespread area of the interconnection. A-Index - A measure of the expected geomagnetic activity based on solar observations for Fredericksburg, VA. Alternative Interpersonal Communication - Any interpersonal communication that is able to serve as a substitute for, and does not utilize the same infra-structure (medium) as, interpersonal communication used for day-to-day operations. Area Control Error (ACE) - The instantaneous difference between a Balancing Authority's net actual and scheduled interchange, taking into account the effects of Frequency Bias, correction for meter error, and Automatic Time Error Correction (ATEC), if operating in the ATEC mode. ATEC is only applicable to Balancing Authorities in the Western Interconnection. Arranged Interchange - The state where a request for interchange (initial or revised) has been submitted for approval. Attaining Balancing Authority - A BA bringing generation or load into its effective control boundaries through a Dynamic Transfer from the Native BA. Automatic Generation Control (AGC) - Equipment that automatically adjusts generation in a BA area from a central location to maintain the BA's interchange schedule plus frequency bias. AGC may also accommodate automatic inadvertent payback and time error correction. Available Transfer Capability (ATC) - A measure of the transfer capability remaining in the physical transmission network for further commercial activity over and above already committed uses. It is defined as Total Transfer Capability, less Existing Tran