This paper presents the effects of Demand Side Management (DSM) on the planning and operation of distribution grids. For this purpose the impact of DSM on the simultaneity function (also known as coincidence function) of electrical loads is taken into consideration. If there is a high DSM participation a distinct increase of the simultaneity factor can occur temporarily. The effects of an increased simultaneity factor on the loading of equipments and local voltage is analyzed taking a typical distribution grid configuration into account. The requirements of network reinforcement measures are presented and quantified with reference to DSM saturation.
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