Profile
About me
Independent lecturer and management consultant since July 2025 — after more than two decades in energy-industry sales and leadership.
Experience from both sides of the table
I have sold energy, bought energy, and taught energy: as a sales engineer, as an authorized signatory at municipal utilities, as head of sales at energy suppliers, and as a university lecturer. All of these perspectives flow into every consulting engagement and every seminar.
Dipl.-Ing. (FH) Matthias Sommer
Energy-sector consultant & trainer
Career
Milestones since 1992
seit 07/2025
ECS EnergieConsulting Sommer
Independent lecturer & management consultant
2019 – 2025
ENGIE Deutschland GmbH
Sales leadership — energy-supply contracting & heat networks
2014 – 2019
goldgas GmbH
Head of business-customer sales
2013
Nexus Energie GmbH
Director, sales & business development
2007 – 2013
University of Applied Sciences (HTW)
Freelance lecturer
2008 – 2012
Stadtwerke Trier Versorgungs-GmbH
Sales & marketing executive, authorized signatory
2007 – 2008
Electrabel Deutschland AG
Head of SME sales
2002 – 2007
Stadtwerke Homburg/Saar GmbH
Authorized signatory; head of sales & trading
1992 – 2002
Asea Brown Boveri AG (ABB)
Specialist sales & leadership — switchgear
Way of working
How I work
Structured
Clearly defined steps from the initial assessment to the award recommendation.
Transparent
Comprehensible comparisons and open communication — with no hidden interests.
Practical
Results that work in the day-to-day of purchasing and management.
Scope
Formats & languages
Formats
Consulting, workshops, in-house seminars, and talks
Languages
German & English
Service area
Throughout Germany; Austria & Switzerland by arrangement
Let's get to know each other.
A no-obligation initial consultation quickly shows whether and how I can support you.
Get in touch