Mahama is the Executive Director of the ECOWAS Centre for Renewable Energy and Energy Efficiency (ECREEE). He was eminent in the establishment of the Centre which aims to ensure increased access to reliable, affordable and clean energy in the West African region. Under his leadership, ECREEE has attained international recognition as a unique regional renewable energy and energy efficiency promotion agency in sub-Saharan Africa, with other regional economic communities such as the EAC and SADC seeking to emulate. Prior to the establishment of ECREEE in 2010, Mahama was Head of the ECOWAS Energy Division. Some of his achievements include the creation of the West African Power Pool (WAPP) and the ECOWAS Regional Electricity Regulation Authority (ERERA). Before joining the ECOWAS Commission, he worked in the Planning and Development Department of the Volta River Authority (VRA) of Ghana, where he served in various capacities. Mahama is a member of the REN21 Board. He holds a Master of Science degree in Electromechanical Engineering from the Kharkov Polytechnic Institute, Karkov, Ukraine. He has over 20 years of experience working on issues related to energy, environment, climate change and sustainable.