Isabelle Kocher,
Chairperson of Terrawatt Initiative
Born on December 9, 1966
Isabelle Kocher is currently Chief Executive Officer of Engie (previously GDF Suez).
She joined the Suez Company in 2002 (then GDF-Suez now Engie) within which she has held functional and operational positions for 12 years. 
She served as Deputy CEO and chief operating officer of GDF-Suez between October 2014 and April 2016. She was appointed in 2011 as Chief Financial officer of GDF-Suez. Before being promoted to Managing Director of Lyonnaise des Eaux (subsidiary of Suez Environnement) in 2009, she was nominated as Chief Operating Officer in 2007. She became Senior Vice President in charge of Performance and Organization programs in 2005. Between 2002 and 2005, she was Vice President in charge of strategic overview of the Suez Group.
Between 1999-2002, she worked as Industrial Affairs Advisor at the French Prime minister office.
From 1997-1999, Isabelle Kocher was Director of the postal and telecommunication budgets, followed by the defense budget at the French Budget Department.
She has been made a “chevalier de la legion d’honneur” and a “chevalier de l’ordre du mérite”.
She is member of the Board of Suez and Axa Group.
She is Chairman of Terrawatt Initiative, a global non profit-organization designed to implement a new global energy mix that corresponds to a new energy paradigm.
She is married and has five children aged 9 to 23. She is a great sportswoman and she appreciates specially swimming. She also likes playing piano. She has a personal for sculpture.
Isabelle Kocher is graduated from Ecole Normale Supérieure (Ulm) and Mines Paristech engineering school, as a civil servant “Ingénieur du corps des Mines”. She holds as well a Master Degree in Quantum Optics as well as a Postgraduate Certificate in Physics.

Vice-Chairperson of Terrawatt Initiative

Executive Vice-President
Research, Technology & Innovation

Thierry Lepercq (54) has been Executive Vice-President of Engie, in charge of Research, Technology and Innovation since 2016. He is in charge of Engie’s research labs as well as the Group’s venture capital and incubation activities. He oversees the launch of EngieTech, the Group’s entity dedicated to the development of mass-scale businesses in the field of EnTechs (disruptive business models leveraging on decentralized energy and digital technologies).

He was previously President and co-founder of Solairedirect, a global leader of solar power acquired by Engie in 2015. Solairedirect has developed a distinctive business model focused on making solar power the most competitive energy source, by industrializing the development, construction, financing and operation value chains. The company has operations spanning four continents and over 1 GW built.

Prior to founding Solairedirect Mr Lepercq had a 20-year carrier in technology finance, first with Bankers Trust in New York, and later with Banque Arjil (Lagardère Group) and Oddo & Cie. In 1999 he founded NetsCapital, a boutique investment bank focused on information technology which structured 40 transactions for a total of 400 M€. In 2004 Thierry Lepercq set up Réseau Innovation Energie, a think tank with such participants as Caisse des Dépôts, Suez, EDF and Gaz de France. He is a graduate of HEC (Paris).

Jean-Pascal Pham-Ba
Secretary General of Terrawatt Initiative

Jean-Pascal Pham-Ba, 46, is one of the cofounders and a senior officer of Solairedirect (Engie Group), in charge of strategic and corporate projects, business innovation, climate affairs, corporate social responsibility and ethics. He is also secretary of the board. Jean-Pascal particularly focuses on the regulatory and risks impacts on the LCOE, analyzing risks related to solar generation and on creating innovative risk management and mitigation tools for solar in a cross border context.

As Secretary General of Terrawatt Initiative he advocates internationally for a global common market of competitive solar power, allowing to achieve the huge political goals implied by the Sustainable Development Goals and the Paris Agreement. Such scale, the terawatt’s / trillion USD’s, requires a paradigm shift, a new market framework at global level.

He was previously a lawyer with the global firm Gide, where he provided utilities, oil and gas majors, energy specialists and international financial institutions with consulting services on joint ventures, restructuring and financial disputes. An attorney at the French bar, he holds two Master degrees in Business Law and in Banking and Finance from the University of Pantheon-Sorbonne.