Mill process from fresh fruit bunches (FFB) to crude palm oil (CPO) discharges some wastes. Oil extraction, washing, and cleaning processes generate liquid waste which called palm oil mill effluent (POME). POME converted to energy by anaerobic digestion process which generates biogas (methane). Anaerobic digestion process consist of four steps which are hydrolysis, acidogenesis, acetogenesis, and methanogenesis. This paper explains contribution of POME in Nangroe Aceh Darusallam to be converted become methane which generates electricity.