Marianne Laigneau was appointed Senior Executive Vice President Group Human Resources, member of the Executive Committee, in December 2010. EDF’s Human Resources Division defines and oversees the Group’s human resources strategies (skills development, employee commitment, diversity, identification and development of potential, CSR) and manages HR projects at Group level.
She was Corporate Secretary and Senior Executive Vice President from June 2007 to December 2009, having been General Counsel from joining the EDF Group in January 2005.
Before coming to EDF, she was Head of Institutional Affairs at Gaz de France, where she was subsequently appointed Deputy Head, Information and Public Affairs, in September 2004.
Between 1995 and 1997, she held various positions within the French Administration (Legal Adviser for the Ministry for cooperation, member of electoral missions in Mozambique for the UN and in Gaza for the EU).
Between 1997 and 2000, she was posted to the Ministry of Foreign Affairs and appointed First Counsellor at the French Embassy in Tunis, where she oversaw communications, negotiations and political, community and legal affairs.
A graduate of the Ecole Normale Supérieure de Sèvres, the Ecole Nationale d’Administration and the Institut d’Etudes Politiques de Paris, she also holds an aggregation in Classics and a Masters Degree in French Literature. After graduating from the Ecole Nationale d’Administration, Marianne Laigneau joined the Council of State where she became Counsellor in 1995.
She was awarded Chevalier de l’Ordre national du Mérite in 2006 and Chevalier de la Légion d’honneur in 2010.
Henri Lafontaine, a graduate of the Supélec Engineering School with a Master's in Mathematics, joined EDF in 1983 where he had a wide range of responsibilities in the Distribution Division. In 1997, he became Deputy Executive Vice President of the Distribution Division in Corsica, then Director of the Distribution Division in Marseilles in 2000.
In 2002, he was appointed as Chief Executive Officer of Edenor, the largest distributor of electricity in Argentina with 25 % of the market. Edenor was one of the EDF Group's main international subsidiaries.
In 2005, he went on to become Director of the project to create a subsidiary for Distribution, which led to the creation of ERDF, then Director of EDF Island Power Systems in 2007, before being made Director of EDF Entreprises in the Commerce Division in 2010.
In December 2011, Henri Lafontaine was appointed as the Director responsible for coordinating the EDF Group's activities in Commerce, Optimisation/Trading and mainland Europe.
Since September 2012, Henri Lafontaine has held the post of Senior Executive Vice President responsible for Commerce Optimisation/Trading and Island Energy Systems.
He is also on the board of several companies, namely EDFI, EDF Energy, Fenice, EDF Luminus and Electricité de Strasbourg.
A graduate in Physical Sciences and Mathematics, Pierre Lederer joined EDF in 1974 where he occupied various positions in the General Economic Studies Department, the National Energy Control Center and the Thermal Generation Department.
He was appointed Head of the General Economic Studies Department in 1992, Senior Vice President of Corporate Strategy in 1996 and then Senior Vice President of Strategy and Optimisation within the Group's Industry Division in 1999.
In 2000, he joined the Executive Management Board of EnBW, Germany's third largest energy company, in which EDF had a 45% stake, became Chief Operating Officer in 2003 and Vice Chairman of the Executive Management Board in 2007.
In 2009, Pierre Lederer was appointed Senior Executive Vice President of EDF S.A., with responsibility for Customer Sales. Group Senior Executive Vice President , Customers, Optimisation and Trading from 2010, Pierre Lederer is also responsible for the Continental Europe zone.
In September 2012, Pierre Lederer was appointed Special advisor to the Chairman & CEO.
He will remain in charge of the Asia-Pacific zone.
A former student of the Ecole Polytechnique technical school (1968), engineer of the “Ecole des Ponts et Chaussées” (Structural Engineering School) and a graduate of the “Institut d’Etudes Politiques” (Institute of Political Studies) in Paris.
Hervé Machenaud started his career as Director of the Urban Planning Division at the Ivory Coast Ministry of Planning in 1973, then undertook a variety of assignments on the African continent for the World Bank before returning to France in 1978 as Structural Engineer for the Department of Ille-et-Vilaine. Hervé Machenaud joined the EDF Group in 1982 as Assistant Director of Development at the Paluel Nuclear Plant.
From 1984 to 1989, he took charge of the Group’s expansion into China, in particular the construction and commissioning of the Daya Bay Nuclear plant.
Between 1990 and 1995, Hervé Machenaud held the post of Director of the National Nuclear Infrastructure Centre, responsible for the Group’s French and international nuclear programmes. In this context, he steered the design, construction and commissioning of the N4 series (nuclear plants at Chooz and Civeaux), the world’s most advanced reactors, equipped with a computer-assisted control system which remains unique.
From 1995 to 1998, he was EDF’s Assistant Director of Infrastructure, responsible for Resources, Management and International Development.
From 1998 to 2002, he filled the role of Head of Generation and Transmission of EDF, then Deputy Chief Operating Officer of the Industry Branch.
From 2002 to 2009, he was based in Beijing as Executive Vice President, Asia, whose role is to enhance the Group’s industrial expertise, particularly nuclear, and to ensure it has access to technological innovations in China, Japan, India and in the Great Mekong region. In particular, he spearheaded the joint venture projects in the fields of nuclear (Taishan), thermal (Sanmenxia), hydraulic and wind generation in China, Vietnam (the Phu My plant) and Laos (the Nam Theun barrage).
Supervises the United States zone.
A graduate of the "Ecole Supérieure des Sciences Economiques et Commerciales" (ESSEC – College for Economics and Business).
Thomas Piquemal started his career in 1991 with audit firm Arthur Andersen.
In 1995, he joined the Mergers and Acquisitions Department of the bank Lazard Frères. In this context, he was involved in the major financial and strategic transactions of Veolia, in particular the company's capital restructuring and the EDF/Dalkia partnership.
In 2008, he took over responsibility in London for the strategic partnership signed between Lazard and the American investment fund Apollo.
In January 2009, Thomas Piquemal joined Veolia Environnement as Senior Executive Vice President in charge of Finance and joined the Group’s Executive Committee. In this post he devoted his efforts to debt reduction, in particular through an asset disposal programme. In addition, in conjunction with the Caisse des Dépôts (French bank for official deposits) he managed the merger of their respective subsidiary companies, Transdev and Veolia Transport, to create a world leader in collective passenger transport and sustainable mobility.
In 2008, together with three-time world boxing champion Christophe Tiozzo, Thomas Piquemal founded the “Académie Christophe Tiozzo”, whose mission is to promote the social and professional integration of young people from deprived areas.
Supervises the United Kingdom zone.
Vincent de Rivaz is a graduate of the Ecole Nationale Supérieure d’Hydraulique de Grenoble.
In 1977, he joined EDF’s Exterior Engineering Centre within the International Affairs Division. From 1985 to 1992, he participated in EDF’s development in China within the International Division, of which he became Director of the Far East Division in 1989. From 1992 to 1994, he was the Head of the National Center of Hydro Equipment within the Equipment Division. He was appointed Deputy Head of the International Division in 1995 and became Head of Projects in 1996. He joined the Finance Department in 1999 as Deputy Chief Financial Officer and became Head of Financial Strategies and Operations in 2000. He was appointed Chief Executive Officer of the London Electricity Group in early 2002. He led the merger transactions of companies acquired during the first six months of 2002 (Eastern and Seeboard networks) and created in mid-2003 EDF Energy and has since been its Chief Executive Officer.
Mr de Rivaz was awarded The Energy Institute’s 71st Melchett Award in June 2006. He was named National Ambassador by HRH the Prince of Wales, in July 2009, for his significant contribution to the Prince’s Business in the Community projects. In November 2009 Mr de Rivaz became an Honorary Fellow of the Institute of Mechanical Engineers as recognition for the major contribution he has made to engineering. He is Chevalier de la Légion d'Honneur.
PhD in Law and a graduate of the ”Institut d’Administration d’Entreprises” (Business Administration Institute).
Alain Tchernonog started his career in 1972 as a lawyer specialising in International Law at the “Centre National d’Etudes Spatiales” (National Centre for Space Studies) before becoming head of the Legal Department of the ANVAR (State Technology Transfer Agency). From 1979 to 1990, he was Director of the Contracts Department at Roussel-UCLAF.
From 1990, he held the post of General Counsel within the Pierre Fabre Group (1990-1995), then at the Compagnie Générale d’Entreprises Automobiles (1995-2000).
In 2001, he joined the Veolia Environnement Group as General Counsel then as Corporate Secretary in March 2007.
In December 2009, Alain Tchernonog was appointed Corporate Secretary of the EDF Group.
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