1. International Energy Research Centre, Tyndall National Institute, University College Cork, Cork, Ireland; Dublin Energy Lab, Technological University Dublin, Dublin, Ireland; MaREI: the SFI Centre for Energy Climate and Marine, University College Cork, Cork, Ireland (corresponding author: )
2. Director of Energy Programme, European Academies Science Advisory Council, Halle, Germany
3. Trainee, European Academies Science Advisory Council, Halle, Germany