Willie van Graan has experience in Energy Management, Renewable Energies, Energy Efficiency, Evaluation and Testing of Energy efficient Products, Compiling test methods for measuring efficiency and data capturing, Training and Consultation, Quality aspects and performance of solar thermal and solar P.V. systems. His experience has been gained during 35 years of work, starting in the chemical industry, further education and training as well as product development in solar thermal field. A B.Sc. degree in Chemistry in 1976 and B.Sc.(Honns) Industrial Chemistry in 1978 provided a strong technical base to his career. Willie became a Certified Energy Manager in 2010 and Certified Measurement and Verification Professional.