Abstract
The structure of the electrical power system in Turkey has undergone rapid change and transitioned into a free market. With this development, the tendency to employ renewable energy sources (RES) has increased. In this study, both the Turkish electricity market and the renewable energy incentive structure, and the effects of RES on the electrical market have been investigated. A 10 buses power system with both traditional and renewable generator units has been considered. In this system, five different scenarios have been constructed and simulated using the PowerWorld program. Marginal prices, voltage amplitudes, voltage angles of buses and the total costs have been examined using optimal power flow (OPF). In particular, for scenarios where there was a load increase and a transmission line was disconnected, significant changes were observed in electricity prices, the voltage amplitude and the voltage angle. With the increase of RES in the electricity market, a price increase was observed in the initial stage. However, as the volume of RES gets larger, the rate of increase was observed to slow down and almost reach its previous state. Generator electricity costs have decreased and profits have increased even though retail prices have increased. The generators with increased profits have been observed to use RES. Keywords: Turkish Electricity Market, Renewable Energy Sources, Bus Marginal Price, Voltage Amplitude, Voltage Angle. JEL Classifications: Q40, Q41, L94, C61 DOI: https://doi.org/10.32479/ijeep.8896
Highlights
The structure of the Turkish electrical power system has been transformed into a competitive electricity market in the same way as other examples around the globe
Since September 01, 2015, the day-ahead, the intraday markets (IDMs) and the negotiation operations are managed by EPIAS, whereas the balancing power market (BPM) is governed by the Turkish Electricity Transmission Incorporated Company (TEIAS)
The most crucial of the results obtained was that while at the first stage an increase in retail prices was observed after renewable energy sources (RES) were increased, later the increase in retail prices slowed down and almost reached its previous level as the RES volume increased
Summary
The structure of the Turkish electrical power system has been transformed into a competitive electricity market in the same way as other examples around the globe. Since September 01, 2015, the day-ahead, the IDMs and the negotiation operations are managed by EPIAS, whereas the balancing power market (BPM) is governed by the Turkish Electricity Transmission Incorporated Company (TEIAS). Karatekin and Celik: The Effects of Renewable Energy Sources on the Structure of the Turkish Electricity Market energy sources (RES) has increased as a result of recent climate changes, the increasing harm caused by traditional resources to nature and the scarcity of fossil resources. Renewable power plants enter the merit order curve at the lowest possible point since their marginal costs are low and their management costs are almost zero This effect represents the greatest problem for the market. Researchers investigated six European energy markets and established a positive relationship between large changes in prices and the amount of RES (Lindström and Regland, 2012). This study is intended to provide an idea about the characteristics of electricity for researchers from different disciplines (economists, lawyers etc.)
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