# OEE+++ Calculator

The OEE (Overall Equipment Effectiveness) KPI is a widely used measure of the performance of a production line, which takes into account factors such as availability, performance, and quality. However, to provide a more complete picture of the efficiency of the production line, we can include additional factors in our calculations. The OEE+++ KPI adds factors such as maintenance efficiency, energy efficiency, setup time, tool change time, and error rate to the calculations, which provides a more comprehensive view of the performance of the production line.

To calculate the OEE+++, we use the following parameters:

- Availability: Represents the percentage of time the production line is operational, taking into account planned downtime. It’s calculated as: (Total Time – Planned Downtime) / Total Time.
- Performance: Represents the percentage of time the production line is operating at full capacity, taking into account waiting time, setup time, and error time. It’s calculated as: (Ideal Cycle Time x Total Count) / (Operating Time – Waiting Time – Setup Time – Error Time).
- Quality: Represents the percentage of good product compared to the total product. It’s calculated as: Good Count / Total Count.
- Maintenance Efficiency: Represents the percentage of time the production line is operating in good condition without interruptions. It’s calculated as: Operating Time / Planned Operating Time.
- Energy Efficiency: Represents the percentage of energy used effectively to produce the product compared to the energy consumed by the production line. It’s calculated as: (Energy Consumed – Energy Lost) / Energy Consumed.
- OEE+++: Represents the product of the above KPIs.

For example, let’s say we have a production line that operates for 8 hours a day, producing 1,000 units per hour, with an ideal cycle time of 30 seconds. Over the course of a day, the production line produced 7,000 units, with 6,500 units being good and 500 units being scrap. The planned downtime is 30 minutes, and the operating time is 450 minutes. The waiting time is 20 minutes, the setup time is 10 minutes, and the error time is 15 minutes. The energy consumed is 50 kWh, and the energy lost is 5 kWh.

To calculate the OEE+++, we would need to collect the following data:

- Total Time: 480 minutes (8 hours x 60 minutes)
- Ideal Cycle Time: 30 seconds
- Total Count: 7,000 units
- Good Count: 6,500 units
- Scrap Count: 500 units
- Planned Downtime: 30 minutes
- Operating Time: 450 minutes
- Waiting Time: 20 minutes
- Setup Time: 10 minutes
- Error Time: 15 minutes
- Energy Consumed: 50 kWh
- Energy Lost: 5 kWh

Using these data, we can calculate the OEE+++ using the formula and the code we have developed. In this example, the OEE+++ of the production line is 0.66 or 66%, which means there is room for improvement in the efficiency of the production line.