What is Overall equipment effectiveness (OEE)?
Overall equipment effectiveness (OEE) is a manufacturing metric that multiplies availability, performance and quality to show what share of planned production time produced good output at full speed.
Who uses OEE
Plant managers, production engineers and lean or TPM teams in packaging, bottling, food and discrete manufacturing use it to rank losses on a line or machine. It is an operations metric rather than an energy one, usually computed from line PLC counters or a manufacturing execution system.
How OEE is calculated
Availability is run time divided by planned production time. Performance is ideal cycle time multiplied by total count, divided by run time. Quality is good count divided by total count. OEE is the product of the three, so a line scoring 0.9 on each factor lands at about 0.73 overall, and small losses in each compound quickly.
Pairing OEE with energy per unit
Aqueduct does not compute OEE. It supplies the utility side: sub-metered electricity, compressed air and water per line, so energy per good unit can sit next to the OEE score. Idle and changeover periods appear as base load that keeps running while availability drops, which is often the cheapest waste on a line to remove.