“…Thus, in a year period of time, there are 16 different energy tariff prices, which associated with the quarterly and the time-of-use period. [4], they have concluded that an extensive study and theoretical framework is needed by taking consideration on load demand under different seasons, load profile and new proposed time of use tariff. In their case, they took the public water works as a case, analysed and found out that if the load can be altered such that the maximum demand is reduce, than the cost occurred can be reduced.…”