Green Power Grids: How Energy from Renewable Sources Affects Networks and Markets.
The increasing attention to environmental issues is forcing the implementation of novel energy models based on renewable sources. This is fundamentally changing the configuration of energy management and is introducing new problems that are only partly understood. In particular, renewable energies introduce fluctuations which cause an increased request for conventional energy sources to balance energy requests at short notice. In order to develop an effective usage of low-carbon sources, such fluctuations must be understood and tamed. In this paper we present a microscopic model for the description and for the forecast of short time fluctuations related to renewable sources in order to estimate their effects on the electricity market. To account for the inter-dependencies in the energy market and the physical power dispatch network, we use a statistical mechanics approach to sample stochastic perturbations in the power system and an agent based approach for the prediction of the market players' behavior. Our model is data-driven; it builds on one-day-ahead real market transactions in order to train agents' behaviour and allows us to deduce the market share of different energy sources. We benchmarked our approach on the Italian market, finding a good accordance with real data.
Dipartimento di Fisica, Università di Cagliari, Cagliari, Italy; IMT Institute for Advanced Studies, Lucca, Italy; Department of Physics and Earth Sciences, Jacobs University, Bremen, Germany.
Mario
M
Mureddu
IMT Institute for Advanced Studies, Lucca, Italy; Istituto dei Sistemi Complessi (ISC), Roma, Italy; London Institute for Mathematical Sciences, London, United Kingdom; Linkalab, Cagliari, Italy.
Guido
G
Caldarelli
IMT Institute for Advanced Studies, Lucca, Italy; Linkalab, Cagliari, Italy.
Alessandro
A
Chessa
Istituto dei Sistemi Complessi (ISC), Roma, Italy; IMT Institute for Advanced Studies, Lucca, Italy; London Institute for Mathematical Sciences, London, United Kingdom.
Antonio
A
Scala
IMT Institute for Advanced Studies, Lucca, Italy; Dipartimento di Ingegneria Elettrica ed Elettronica, Università di Cagliari, Italy.
Alfonso
A
Damiano
D003132:Commerce; D003246:Conservation of Energy Resources; D004736:Energy-Generating Resources