He is a Member of the Royal Irish Academy, Ireland’s highest academic distinction, and a Fellow of the Irish Academy of Engineering. He is an Honorary Fellow of the Chartered Institute of Building Services Engineers. His awards include; the CIBSE Napier Shaw Medal for the development of the degree-hour building energy-use correlation; the Energy Institute’s Roscoe Award which recognized his research comparing the embodied environmental impact of all renewable and non-renewable energy sources and the American Association of Publishers PROSE Award for the book “Comprehensive Renewable Energy”. He has received the Lifetime Achievement Award from the Solaris Conference series and “Solar Energy” Journal Best Paper Award in Photovoltaics.