Matthieu Caille is an expert in the energy efficiency field with 12 years of professional experience. A master’s degree graduate from Mechanical Engineering in Institut Catholique d’Arts et Métiers (ICAM), France, he has demonstrated an extensive portfolio of energy audits in Indonesian companies, ranging from urban infrastructure, aviation, textile, chemical, to FnB sector. He also currently occupies the position of COO in the French company BioTanah. With his various specialisations in energy management, he has contributed to projects from the French government representative, development sector NGOs, multinational companies, and sustainability agencies which includes Tri Hita Consulting. He is currently collaborating with Tri Hita Consulting on a PPP Project with ADB & City of Denpasar, leading the technical team to ensure the efficiency in a crucial street lighting is achieved.