Ioannis Stefanou is Partner & Head of Energy & Resources Sector of Grant Thornton Greece and brings multiple years of international experience in business, strategy and engineering. He works at the intersection of energy markets, infrastructure, and policy, helping shape strategies that move systems - not only projects. From advising governments and European institutions to supporting investors and operators, his focus has been on translating complexity into actionable pathways: designing markets, enabling large-scale infrastructure, and accelerating the integration of cleantech.
During his professional career he has gained a profound understanding of the design and operations of wholesale and retail electricity and gas markets, regulation of transmission and distribution networks, as well as policies on energy transition. Ioannis has implemented numerous projects related to the development of policy and regulatory frameworks, energy market reforms, development of niche business strategies and models for large corporate clients. He focuses on the deployment and commercial uptake for energy transition projects, concepts and models such as international interconnectors, battery storage (BESS), Power Purchase Agreements (PPAs), electromobility, Demand Side Response (DSR), renewable hydrogen and offshore wind.
He has been one of the leading experts on the preparation of the Greek Recovery and Resilience Plan, responsible for the Green Transition Pillar, including investments of ~12 billion EUR and heavily involved in its implementation.
Ioannis has received the Emerging Leader award among the global Grant Thornton network with more than 80.000 employees.
He holds an integrated Diploma in Electrical and Computer Engineering (BSc plus MSc in Power Systems), a 2-year MSc in Sustainable Energy Technologies from Delft University of Technology and has completed the Senior Leadership Program from Harvard Business School.
Among the most defining episodes in this history is the 1973 oil crisis, that reshaped energy policy, economic planning, and international relations.
