Executive Board

Clemens

Dr. Gabriël Clemens
Chief Executive and Commercial Director

born in Ulestraten, Netherlands, in 1971 

Career

since 01.04.2025Chairman of the Executive Board (CEO) of MVV Energie AG, Mannheim 
2021-2025CEO Green Gas E.ON SE and Managing Director of E.ON Hydrogen GmbH, Essen
2014 - 2022Member of the Executive Board, VSE AG (a company of the RWE Group; from 2019 of the E.ON Group), Saarbrücken 
2013 - 2014Managing Director of Westnetz GmbH (a company of the RWE Group), Dortmund
2009 - 2012After takeover of Essent by RWE, senior functions in the RWE Group 
2002 - 2009Several senior functions at Essent, Netherlands and Germany
1999 - 2002Management consultant, McKinsey & Co., Düsseldorf

 

Education

1998Doctorate (Dr.-Ing.), RWTH Aachen University
1994Masters (Dipl.-Ing.) in electrical engineering, majoring in electrical power engineering, RWTH Aachen University


Positions held on other statutory supervisory boards of German companies 

  • Energieversorgung Offenbach AG, Offenbach (Chair) 
  • Stadtwerke Kiel AG, Kiel (Chair) 
  • Grosskraftwerk Mannheim AG, Mannheim 
  • Juwi GmbH, Wörrstadt (Deputy Chairman)


Membership in comparable domestic and foreign supervisory bodies of commercial enterprises 

  • MVV Enamic GmbH, Mannheim (Deputy Chairman)
  • MVV Trading GmbH, Mannheim (Deputy Chairman)
  • MVV Umwelt GmbH, Mannheim 

 

Status: 5th May 2025

Verena Amann
HR Director

Born in Ravensburg in 1981

Professional career

since 01.08.2019Member of Executive Board of MVV Energie AG
2006 - 2019United Internet Gruppe, Deutschland
Head of Coporate HR United Internet Corporate Services GmbH, Karlsruhe
Head of Business HR 1&1 Internet AG, Karlsruhe
2005 – 2006Reutax AG (today: Questax Experts GmbH, Heidelberg)
Head of Sales Operations Germany
Head of Marketing/PR

 

Training

2000 - 2005Studied business administration at the Pforzheim University of Applied Sciences


Positions held on other statutory supervisory boards of German companies

  • Energieversorgung Offenbach AG, Offenbach
  • MVV Netze GmbH, Mannheim (Deputy Chairwoman)
  • Soluvia IT-Services GmbH, Kiel
  • Stadtwerke Kiel AG, Kiel
  • Juwi GmbH, Wörrstadt

Membership in comparable domestic and foreign supervisory bodies of commercial enterprises

  • MVV Enamic GmbH, Mannheim
     

Status: 14th March 2025

Ralf Klöpfer
Sales

Born in Backnang in 1966

Career

since 01.10.2013Member of Executive Board of MVV Energie AG
2012 - 2013Managing Partner, enevio GmbH, Karlsruhe
2010 - 2012Spokesman of Management, EnBW Vertrieb GmbH, Karlsruhe
2004 - 2010Director of Risk Management, EnBW Trading GmbH, Karlsruhe
2001 - 2004Development and management of "Energy Industry/Optimisation" department, EnBW AG, Karlsruhe
1997 - 2001Foundation and development, EnBW Gesellschaft für Stromhandel mbH, Karlsruhe, most recently as Director of Finance/Controlling and Processes/IT departments
1993 - 1997Assistant in Energy Management department, Badenwerk AG, Karlsruhe

 

Training

1987 - 1993Study of electrical engineering, majoring in energy technology, at University of Stuttgart


Positions held on other statutory supervisory boards of German companies

  • Energieversorgung Offenbach AG, Offenbach
  • Stadtwerke Kiel AG, Kiel

  • Juwi GmbH, Wörrstadt


Membership of comparable German and foreign company supervisory boards

  • Qivalo GmbH, Mannheim (Deputy Chairman)
  • Stadtmarketing Mannheim GmbH, Mannheim
  • MVV Enamic GmbH, Mannheim (Chairman)
  • MVV Trading GmbH, Mannheim (Chairman)
     

Status: 14th March 2025

Dr. Hansjörg Roll
Technology

Born in Offenburg in 1965

Career

since 01.01.2015Member of Executive Board of MVV Energie AG
2008 - 2014Managing Director of MVV Umwelt GmbH
2003 - 2008Management roles at MVV
Energiedienstleistungen GmbH,
including Managing Director of Gengenbach Industrial Power Plant and Ludwigshafen Industrial Power Plant
1999 - 2003Head of Division, Power Plant Planning, EnBW Ingenieure GmbH, Stuttgart
1995 - 1999Project Engineer and Project Director for Power Plant Planning, Badenwerk AG, Karlsruhe, and EnBW Ingenieure GmbH, Stuttgart

 

Training

1990 - 1994Doctorate in Engineering Sciences
1984 - 1990Study of Chemical Engineering at Karlsruhe Technical University


Positions held on other statutory supervisory boards of German companies

  • Energieversorgung Offenbach AG, Offenbach
  • Grosskraftwerk Mannheim AG, Mannheim 
  • MVV Netze GmbH, Mannheim (Chairman)
  • Stadtwerke Kiel AG, Kiel

  • Juwi GmbH, Wörrstadt (Chairman)


Membership of comparable German and foreign company supervisory boards

  • MVV Umwelt GmbH, Mannheim (Chairman)
     

Status: 9th April 2025