IEEE 762-2023

This document standardizes terminology and indexes for reporting electric generating unit reliability, availability, and productivity performance measures that recognize the power industry’s needs, including marketplace competition. This standard also includes consideration of VER units and Resource unavailability, and new indexes appropriate for that purpose. This document does not address common mode or dependent outages.

This standard is intended to aid the electric power industry in reporting and evaluating electric generating unit reliability, availability, and productivity. It was originally developed to overcome difficulties in the interpretation of electric generating unit performance data from various systems and to facilitate comparisons among different systems. The standard also makes possible the exchange of meaningful data among systems in North America and throughout the world. It includes both indexes for unit performance analysis, which exclude outages or deratings owing to resource unavailability, and indexes for system reliability analysis, which include outages and deratings owing to Resource unavailability as well as equipment unavailability. The distinction recognizes that Resource unavailability affects the contribution of a Unit to system reliability, but is not something for which plant management should be held responsible.

Revision Standard - Active. Outlined in this document are standardized terminology and indexes for reporting electric generating unit reliability, availability, and productivity performance measures that recognize the power industry’s needs, including marketplace competition. This standard also includes equations for equivalent demand forced outage rate (EFORd), newly identified outage states, energy weighted equations for group performance indexes, definitions of outside management control (OMC), pooling methodologies, and time-based calculations for group performance indexes. It includes consideration of variable energy resource units and resource unavailability and new indexes appropriate for that purpose.