Influence of using Intermittent Renewable Energy Sources on The Power System Operation

The modern world is moving towards increased use of renewable energy sources (RES), which have many benefits. The Egyptian Electricity Holding Company (EEHC) aims at increasing electricity production from RES in a wider range. The thermal stations are replaced by RES (WP - wind and PV - photovoltaic), so that the proportion of RES is increasing to 20% in 2022. The replacement will reduce system inertia and increase frequency deviation. This paper will examine the effects of this change on the Egyptian network through different operation scenarios. The Dig SILENT program used to create the model.