Peer-to-Peer Electricity Trading in Distribution Grid: Effects of Prosumer’s Elasticities on Voltage Levels

Peer-to-peer electricity trading between consumers, producers and/or prosumers located in a low voltage distribution grid is a concept that goes well with the trends of democratization, decarbonization and decentralization in the power sector. However, the impacts of peer-to-peer electricity trading on voltage levels in distribution grids are still in the early stage of research. The aim of this work is to investigate effects of a near real-time peer-to-peer electricity trading in a distribution grid on voltage levels. It is analyzed if a contribution to the sustention of the voltages under limits can be achieved without security-constrained dispatch calculations for the observed time horizon and each trading period. The peer-to-peer electricity trading is simulated as an auction-based local market and implemented in the modified IEEE European Low Voltage Test Feeder where the impacts on voltage levels are analyzed for different elasticities of demand bidding curves.