Value of windfarm location and penetration on operation of power system and benefits of responsive demand

Abstract

The value of renewables is significantly affected by their penetration, concentration and location. Value is further affected by the responsiveness of demand which will reduce the need for back up power through non-renewable sources. By increasing the penetration of renewables in power systems, demand side participation become more important. Demand side management (DSM) programs have been studied for a long time and among all DSM programs responsive demand seems to be the most applicable type of DSM for a system with significant intermittent generation. It mitigates issues such as required reserve, network congestions and higher/lower voltage profiles and thus results in less operation cost although little attention has been made to quantify the effect of location on value of wind and the benefits of responsive demand which could increase this value when it is small because of network constraints. In this paper, the value of wind generation without responsive demand is quantified first, by introducing responsiveness in the demand side, the reduction in operation cost is calculated and the additional benefits are quantified. The quantification was evaluated on the IEEE 30 busbar system through security constraint unit commitment (SCUC) and the results indicate the benefits of responsive demand on operational and environmental characteristics in power system.