Gregory J. Leng is the creator and Director of the RETScreen Clean Energy Management Software at Natural Resources Canada’s CanmetENERGY research centre in Varennes, Quebec. He specializes in the clean energy market, technology and finance interface and has been working in the renewable energy and energy efficiency fields since 1987. Prior to joining NRCan, Greg was based in Hyderabad, India as the India Country Manager for the International Fund for Renewable Energy and Energy Efficiency. Greg obtained a Master of Science degree from the University of Massachusetts Lowell in Energy Engineering (Solar Energy Engineering) and a Bachelor of Commerce degree (Marketing and International Business) from McGill University.