MAIFI is the average number of momentary interruptions that a customer would experience during a given period (typically a year).
MAIFI has tended to be less reported than other reliability indicators, such as SAIDI, SAIFI, and CAIDI.
because of the many variables that affect the measure: high/low lightning, number & type of trees, high/low winds, etc.
Therefore, comparing MAIFI of one power utility to another is not valid and should not be used in this type of benchmarking.
It also is difficult to compare this measure of reliability within a single utility.