Determining Key Factors for Continuous Improvement of Environmental Management System (EMS) at Geothermal Power Plant (Case Study of PT. Pertamina Geothermal Energy Karaha Area)

Environmental Management Systems (EMS) play a pivotal role in addressing environmental issues. While organizations strive for EMS certification, achieving excellence in continuous improvement remains a challenge due to the lack of defined procedures and guidelines. This paper aims to address this challenge through a case study conducted at PT Pertamina Geothermal Energy (PGE) Karaha Area, an energy supply company. By analyzing audit findings, we identified technical aspects as obstacles to continuous improvement. Consequently, we seek to identify key factors that significantly influence the continuous improvement process. To achieve this, we employ the Matrix of Cross Impact Multiplication Applied to a Classification (MICMAC) structural analysis method developed by Godet. Our study aims to (i) identify EMS determinants, (ii) analyze the relationships between determinants, and (iii) categorize key factors that drive continuous improvement. Key continuous improvement factors include communication, production process, training, emergency preparedness and response, and document control. Recommendations for improvement include the implementation of coaching and feedback, motivation, and consistency to improve the communication process; the implementation of LCA analysis to improve the production process; the implementation of e-learning to improve training and emergency preparedness; and the implementation of electronic document management system in the document control process.