Professor Gopal Nath Tiwari had received postgraduate and doctoral degrees in 1972 and 1976, respectively, from Banaras Hindu University (B.H.U.). Over several years since 1977, he has been actively involved in the teaching programme at Centre for Energy Studies, IIT Delhi. His research interest in the field of Solar Energy Applications are solar distillation, water/air heating system, greenhouse technology for agriculture as well as for aquaculture, Earth to air heat exchanger, passive building design and hybrid photovoltaic thermal (HPVT) systems, climate change, energy security, etc. He has guided about 80 Ph.D. students and published over 600 research papers in journals of repute. He has authored twenty books associated with reputed publishers namely Pergaman Press UK, CRC Press USA, Narosa Publishing House, Ahsan (UK), Alpha-science (UK), Royal Society of Chemistry (UK) etc. He is a co-recipient of ‘Hariom Ashram Prerit S.S. Bhatnagar’ Award in 1982. Professor Tiwari has been recognized both at national and international levels. Dr. Tiwari had visited many countries namely Italy, Canada, USA, UK, Australia, Sweden, Germany, Greece, France, Thailand, Singapore, PNG, Hong Kong, Bangladesh, China and Taiwan etc. for invited talks, chairing international conferences, expert in renewable energy, presenting research papers etc.

Dr. Tiwari was Editor of International Journal of Agricultural Engineering for the duration of three years (2006-2008). He is Associate Editor for Solar Energy Journal (SEJ) in the area of Solar Distillation and editor of International Journal of Energy Research since 2007. He is also Chief-Editor of Fundamental of Renewable Energy Applications and reviewers of many international journals.

Prof. G. N. Tiwari has been conferred “Vigyan Ratna” by Govt. of U.P., India on March 26, 2008 and Valued Associated Editor award by J. of Solar Energy. He has organized two international conference SOLARIS 2007 and SOLARIS 2012 at IIT Delhi, New Delhi and Banaras Hindu University (BHU), Varanasi. He is also founder president of Bag Energy Research Society (BERS: www.bers.in) which is responsible for energy education in rural India.