ABSTRACT
The main objective of traditional distribution system planning is to ensure that the demand is met with an appropriate level of reliability. This is achieved through redundancy in the network so that there is more than one path to supply the demand. The planning of distribution systems traditionally involves forecasting electricity demand, locating and sizing substations, designing the power distribution network and assessing of the potential of the grid to supply power. Methods for total load forecasting include the growth curve model, regression analysis forecasting and time series forecasting. The uncontrollable load cannot be dispatched or respond to the electricity price. The controllable load is divided into interruptible and shiftable. Interruptible load is the load which can be interrupted for a specific period of time. Shiftable load is the load that can be delayed for a period of time. Uncontrollable load: This is traditional load that is connected to the grid when required and cannot be delayed.
