Audit Energi dan Analisis Penghematan Konsumsi Energi Menggunakan Metode MCDM-PROMETHEE Pada Sistem Peralatan Listrik di Kantor PT TASPEN (Persero) Cabang Malang

Electrical energy is important for industry, one of which is offices. Office buildings are industries with a high level of dependence on electrical energy for the operation of their business, therefore it is necessary to conserve energy concernig harmonize use electricity. additionaly this research, energy conservation is carried out in the PT. Taspen (Persero) Malang Branch, by auditing the electrical equipment system in the building. So that it can determine the Energy Consumption Intensity (IKE) according to efficient standards or not. Then it can determine what Energy Saving Opportunities can be applied using the PROMETHEE decisionmaking method. The working method starts from collecting literature study data and data collection and measurement documents, to analyzing the data has been exist. From the data obtained, the use of electricity in the PT. Taspen (Persero) Malang Branch of 68486.16 kWh/year with a building area of 512.82 m2. Then the IKE analysis was found to have a value of 133.55 kWh/m2/year, which according to Indonesian Satandart National (SNI) is efficient. To be more efficient, PHE suggestions are given, namely no-cost, low cost, and high cost (high cost). Assisted by PROMETHEE method as a ranking or decision making which PHE will be prioritized to be applied in the building, namely the selected no-cost savings with the highest net flow value of 0.6