Profile
Matthias Sommer – experience for your energy decisions
Independent lecturer and management consultant since July 2025 — after more than three decades in sales and leadership in the energy industry and energy technology.
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 workshop.
For your energy procurement, I combine a commercial understanding of suppliers, purchasing decisions and energy contracts. This helps make offers comparable and costs and risks transparent. Explore procurement consulting
For municipal utilities and energy suppliers, I bring together sales leadership, business development, contracting and teaching experience. These perspectives shape workshops where we assess options and document next steps. Explore strategy and business-model workshops
Dipl.-Ing. (FH) Matthias Sommer
Consultant for energy markets, strategy & business models
Career
Milestones since 1992
Since July 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
Analyse contracts and consumption, make supplier offers comparable and document a reasoned award recommendation.
Transparent
Record costs, risks and open questions in transparent comparisons and decision matrices.
Practical
Assess options in the workshop and document the next decisions and actions in a roadmap.
Scope
Formats & languages
Formats
Consulting, workshops, strategy development, 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.
Request an initial consultation