An old manufacturing metric (TEEP) is very relevant when it comes to high speed automated assembly Total Effective Equipment Performance (TEEP) is an uncommon but powerful manufacturing metric that is both broader and more revealing than the widely used Overall Equipment Effectivness (OEE). The difference between TEEP and OEE is simply that OEE measures equipment effectiveness over scheduled operating hours, whereas TEEP measures equipment effectiveness over available calendar hours (24 hours per day and 365 days a year = 100% TEEP utilization).