Project Description: The aim of this project is to improve the energy efficiency of WWTPs in Jordan by extending the treatment processes of selected WWTPs to an anaerobic sludge stabilization with biogas production and electricity generation through the CHP plant. The project includes the assessment and investigation of 10 WWTPs in order to rank them according to their biogas potential. The ranking was done according to a multi-criteria matrix, which included technical, operational, Financial and Environmental aspects. The treatment plants are operated by WAJ or by one of its operating companies Water Company of Jordan (MIYAHUNA), Yarmouk Water Company (YWC) and Aqaba Water Company (AWC). The list included the following WWTPs: