As used in this chapter, "major event day", or "MED", means a day with respect to which an electricity supplier's daily system SAIDI exceeds a statistical threshold value that is:

1. (1) calculated using the 2.5 Beta methodology developed by the Institute of Electrical and Electronics Engineers; and

2. (2) based on the most recent five (5) years of relevant data for the electricity supplier;

   as defined in IEEE 1366.

As added by P.L.36-2026, SEC.10.