This study deals with an innovative design of integrated crude palm oil (CPO) and palm kernel oil processes based on process integration technology. Two types of cogeneration systems were introduced in this integrated process to further improve energy efficiency: a conventional boiler based cogeneration system and an internal combustion engine based cogeneration system. The solid wastes, including empty fruit bunches, fibers and nut shells, are used as fuel for boiler based cogeneration. Moreover, in the internal combustion engine based cogeneration, biogas is produced from the palm oil mill effluent exhausted from the CPO milling process. Energy analysis of the proposed integrated system was performed in terms of energy demand and patterns in both milling processes. The results show clearly the significant energy surplus in both milling processes. Furthermore, the huge potential of CPO and palm kernel oil mills in terms of both oil and energy production has the ability to increase national energy security in Indonesia.