Conceptual Model of Integrated Spare Parts Inventory Management and Maintenance Scheduling at PT PLN Indonesia Power
Keywords:
Inventory Management, Corrective Maintenance, Preventive Maintenance, Stock Review Interval, Lost kWh, Model Development, Model ConceptualAbstract
PT PLN Indonesia Power is facing issues of delays and stockouts of bearing spare parts, which negatively affect the power plant maintenance schedule. This study aims to develop a conceptual model that integrates spare parts inventory management and preventive maintenance scheduling to address these problems. The research is conducted by enhancing the existing model, which applies an inventory policy with fixed (static) stock review intervals and preventive maintenance schedules. This study proposes to make the preventive maintenance schedule a decision variable. Additionally, the developed model specifically integrates the cost of lost electricity production (lost kWh) due to spare parts stockouts as part of the operational costs to be optimized.
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