Assessing P2P energy markets contribution for 2050 decarbonization goals

Abstract

Energy communities (ECs) present a viable option to support energy transition at local scale. Peer-to-peer (P2P) energy markets can trigger prosumers to increase local renewable self-consumption, by allowing trading amongst peers. Yet, it is still uncertain how much can ECs contribute for decarbonization goals.In this work, a P2P optimization model was developed to assess P2P role for decarbonizing the 2050 horizon, in Portugal. Each of the 278 municipalities was considered to establish an EC, with four demanding sectors as participants. ECs results were analysed in 6 clusters, in terms of energy, costs and CO2 emissions savings, for three energy trading scenarios, being then upscaled to national level.Collective self-consumption and P2P scenarios resulted, respectively, in costs (31.48% and 31.49%) and CO2 emissions (26.34% and 26.33%) reductions, at national level, which reveals that most of the savings result from collective self-consumption. The services’ sector revealed as an active trader, with the highest amount of traded energy on P2P market, contrarily to industry, while the residential sector demonstrated a clear buyer and seller behaviour, depending on the type of municipality (urban or rural). However, the industry partner was the one getting the lowest P2P prices.