title: Recent progress towards all-renewable electricity supplies.
authors.affiliation: Physics Department, Imperial College London, London SW7 2BW, UK.
authors.forename: Keith
authors.initials: K
authors.lastname: Barnham
authors.affiliation: Fraunhofer Institute for Wind Energy and Energy System Technology, 34119 Kassel, Germany.
authors.forename: Kaspar
authors.initials: K
authors.lastname: Knorr
authors.affiliation: CNR-IMEM, Parco Area delle Scienze 37/A, 43124 Parma, Italy.
authors.forename: Massimo
authors.initials: M
authors.lastname: Mazzer