Mr. Sosthene MUBERA holds Master’s degree in Environmental Engineering from China-Shanghai Tongji University , Sosthene Mubera founded Kolmena Group ltd to provide green solutions in building industry which he has extensive knowledge in as a civil engineer. He developed solar water heating technology in residential and commercial buildings. In 2021 he joined EPD and lead his company in Rwanda National Electrification program. In July 2023 he was elected chairman of Solar sub sector in Rwanda
