![]() System Average Interruption Frequency Index (SAIFI): the number of times the average PG&E customer experiences a sustained outage in a given year.System Average Interruption Duration Index (SAIDI): the amount of time in minutes that the average PG&E customer experiences sustained outages (being without power for more than five minutes) in a given year.The following definitions were pulled from Pacific Gas And Electric Company's 2017 Annual Electric Reliability Report with some slight edits by the author. There are four widely recognized metrics for power reliability. This paper will focus on metrics, system and software solutions. ![]() The first part of this series (linked below) focused on the history of outage management, and hardware solutions that reduce the number and duration of outages.
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