Executive Board



Yves Zumwald
CEO, Head of Market a.i.

Born in 1967, Swiss

Yves Zumwald is an electrical engineer who launched his long career in the energy industry in 1993 at Energie Ouest Suisse (EOS). After a spell as National Electrical Design Manager at Orange Communications, he returned to EOS Holding in 2002 when he took on responsibility for grid usage and access. Following this, he headed the Infrastructure department as a member of the Executive Board at EOS Réseau from 2005. Yves Zumwald took over management of the sales department and joined the Executive Board at the Romande Energie group in September 2009. In this capacity he made a significant contribution to the development and optimisation of the department while guaranteeing outstanding quality of supply.

Yves Zumwald joined Swissgrid in January 2014 as a member of the Executive Board and Head of Grid. In March 2016 the Board of Directors has appointed him as CEO of Swissgrid.


Doris Barnert
Head of Corporate Services / CFO

Born in 1969, Swiss

Doris Barnert has a degree in architecture from the Swiss Federal Institute of Technology (ETH) Zurich with a Master‘s degree in Corporate Finance and an Executive MBA from the University of St.Gallen (HSG). After her first positions in the architecture sector, she joined the infrastructure division of SBB (Swiss Federal Railways) in 2001, where she held various management and project leadership positions. In 2006, she was appointed Head of Finances for the western Swiss route in the infrastructure division and was responsible for the financial steering and management of all business units for the route in Romandie. In December 2008, she joined Solothurner Spitäler AG as director of Finances (CFO) and member of the Executive Board. In this position, she built up, expanded and made a significant impact on the finance department, constantly pushing for further development.

Since April 2017 Doris Barnert is a member of the Executive Board and Head of Corporate Services / CFO of Swissgrid.


Maurice Dierick
Head of Grid

Born in 1964, Dutch

Maurice Dierick is a mechanical engineer, who started his professional career in 1991 with E. I. Du Pont de Nemours S.A. in France. He then moved to General Electric Plastics in Germany. Between 1998 and 2004, he supervised various projects in different businesses within the scope of the liberalisation of the energy market. From 2001 on, after the completion of the first phase of unbundling, he focused his attention on the structuring of asset management organisation, first for Cap Gemini Ernst & Young in the Netherlands and as of 2004 as a consultant to various energy supply companies in Belgium, Germany, France, Switzerland and Australia. In Switzerland, he was also involved in the market liberalisation in 2008.

Maurice Dierick joined Swissgrid in February 2015 as Head of Grid Infrastructure. Since June 2016 he is a member of the Executive Board and Head of Grid at Swissgrid.


Rainer Mühlberger
Head of Technology

Born in 1958, Swiss / German

Rainer Mühlberger has a degree in mechanical engineering as well as an Executive MBA from the University of Fribourg. He began his professional career in the telecommunications sector. From 1996 until 2000, he worked as Project Manager Corporate Strategy at Swisscom AG. He then moved to Swisscom Fixnet AG where he served as Head of Strategy and Business Development, and from 2002 until 2007 as member of the Executive Board – first as the Head of Business Development, then as Head of IT. In 2008, he was appointed as CEO of Swisscom Directories AG. He joined Swissgrid in December 2011 as Head of Strategy. In his function he significantly contributed to the successful transfer of ownership of the Swiss transmission grid as at 3 January 2013.

Rainer Mühlberger has been a member of the Executive Board at Swissgrid since October 2013. After being Head of Strategy & Development, he became Head of Technology as of 1st February 2016.