Impact of increased RES penetration on the operation of the Greek electricity market

This paper analyzes the impact that the increased RES penetration in the energy production mix of Greece has on the operation of the Greek electricity market, in terms of the electricity market prices, the total CO₂ emissions, the total payment of the consumers for the energy withdrawal and the RES uplift charge, imposed by the government for the payment of the feed-in tariff to the RES producers. The market clearing algorithm of the Greek day-ahead electricity market is used for the simulation of the Greek energy market under ten different scenarios regarding the RES installed capacity. The units´ emissions cost is appropriately incorporated in their total production cost function. Test results from the application of the scenarios on four typical weeks of year 2009 are also discussed.