1 Bioenergy and Energy Planning Research Group, ENAC, Station 18 EPFL, CH-1015 Lausanne, Switzerland. Electronic address: edgard.gnansounou@epfl.ch.
2 Biological and Ecological Engineering, Oregon State University, Corvallis, OR 97331 3906, USA.
3 Department of Scientific and Industrial Research (DSIR), Ministry of Science and Technology, Government of India, Technology Bhawan, New Mehrauli Road, New Delhi 110016, India.
4 Environmental Biophysics, EcoSys Joint Research Unit, AgroParisTech/INRA/Paris-Saclay University, Thiverval Grignon, France.