摘要:AbstractThe energy sector is a strategic sector, as a developing country, energy consumption in Indonesia, especially electrical energy, is increasing rapidly. Residents can have a significant impact on the environment. This research focuses on the technological transition on water supply management policy. The research will elaborate some models; they are alternative water energy consumption of water supply. The methodology will use Enduse model which is a recursive dynamic model. It will used to evaluate the water supply mechanism. Moreover, they have a focus on technology The result shows the communal water supply management more effectively than private. Moreover, the government should prepare to design and support the mechanism by policy.