OPEN LETTER Developing the next generation of renewable energy technologies: an overview of low-TRL EU-funded research projects [version 1; peer review: awaiting peer review] Laura María Pérez Caballero 1 , Fernanda Neira D'Angelo 2 , Roman Tschentscher 3 , Axel Gottschalk 4 , Ahmed M. Salem 5,6 , Daniel Carbonell 5 , Mihaela Dudita-Kauffeld 5 , Arnaud Bruch 7 , Eleonora Alamaro 8 , Luca Pasquini 9 , Paola Ceroni 10 , Anastasia Grozdanova 8 , Stefania Privitera 11 , Bart Vermang 12-14 , Philip Schulz 15 , Davide Mencarelli 16 , Luca Pierantoni 16 , Michele Midrio 17 , William Leithead 18 , Ignacio Gurruchaga 5 , Robert Haberl 5 , Jasper Vermaut 19 , Michael Kauffeld 20 1 Innovation Area, R2M Solution Spain S.L., Madrid, 28032, Spain 2 Chemical Engineering and Chemistry, Eindhoven University of Technology, Eindhoven, 5612 AZ, The Netherlands 3 Process Chemistry and Functional Materials, Sintef Industry, Oslo, 0314, Norway 4 Institute of Process Engineering, Bremerhaven University of Applied Sciences, Bremerhaven, 27568, Germany 5 SPF Institute for Solar Technology, OST Eastern Switzerland University of Applied Sciences, Rapperswil, 8640, Switzerland 6 Department of Energy, Systems, Territory and Constructions Engineering (D.E.S.T.E.C.), University of Pisa, Pisa, 56122, Italy 7 Atomic Energy and Alternative Energies Commission, France, Grenoble, 38054, France 8 AMIRES, Prague, 162 00, Czech Republic 9 Department of Physics and Astronomy, University of Bologna, Bologna, 40126, Italy 10 Department of Chemistry "Giacomo Ciamician", University of Bologna, Bologna, 40126, Italy 11 Institute for Microelectronic and Microsystems (IMM), National Research Council, Italy, Catania, 95121, Italy 12 imo-imomec, Hasselt University, Hasselt, 3500, Belgium 13 imo-imomec, Imec, Genk, 3600, Belgium 14 imo-imec, EnergyVille, Genk, 3600, Belgium 15 Institut Photovoltaïque d’Île de France (IPVF), CNRS, Palaiseau, 91120, France 16 Marche Polytechnic University, Ancona, 60121, Italy 17 University of Udine, Udine, 33100, Italy 18 Wind Energy and Control Centre (WECC), University of Strathclyde, Glasgow, G11XQ, UK 19 Federation of European Heating, Ventilation and Air Conditioning Associations, Brussels, 1050, Belgium 20 Institute of Refrigeration, Air Conditioning and Environmental Engineering, University of Applied Sciences Karlsruhe, Karlsruhe, 298R+86, Germany First published: 11 Jan 2023, 3:8 https://doi.org/10.12688/openreseurope.15276.1 Latest published: 11 Jan 2023, 3:8 https://doi.org/10.12688/openreseurope.15276.1 v1 Abstract A cluster of eleven research and innovation projects, funded under the same call of the EU’s H2020 programme, are developing breakthrough and game-changing renewable energy technologies that will form the backbone of the energy system by 2030 and 2050 Open Peer Review Approval Status AWAITING PEER REVIEW Any reports and responses or comments on the article can be found at the end of the article. Open Research Europe Page 1 of 12 Open Research Europe 2023, 3:8 Last updated: 11 JAN 2023