Guilherme Berejuk is a lawyer with a master’s degree in Energy from the Institute of Energy and Environment at USP. He has worked in the electric power sector since 2005. A founding partner of Guilherme Berejuk Advocacia, he has extensive experience in regulating the electric power sector. He is currently Executive Director of the Energy Commission of the OAB/PR and Coordinator of the Energy Committee of the Chamber of Business Mediation and Arbitration (CAMARB). He is also a member of the C5 Committee – Electricity Markets and Rules of CIGRE-Brasil (Brazilian National Committee for Electric Power Production and Transmission). He has written several articles in the area and is recognized nationwide for his work in the different segments of the electric power sector.