About us
Energie21 GmbH is a Consultancy and planning company in the areas of renewable energies and Decarbonisation. We have extensive experience with technologies and systems in the Solar energy and industry.
Our aim is to support the energy transition towards a sustainable economy and way of life with help and advice. We always look for the best possible solutions for our customers and support them in the successful planning and realisation of their projects.

Roman Bader
Dr sc., MSc ETH Mechanical engineer
Founder and Managing Director
Project manager
Roman Bader has been working in the energy sector for over 15 years. He has in-depth expertise and experience in the fields of renewable energies and industrial process technologies.
As a technical planner and consultant, he has developed and implemented photovoltaic solutions for various properties. In the industrial sector, he has developed energy concepts and solutions for various large and small industrial companies.

Benedikt Gerber
MSc ETH Process Engineering
Project manager
Benedikt Gerber has sound technical knowledge and expertise thanks to his Master's degree in Food Processing and Technology at ETH and several years of professional experience in the industry.
Thanks to his strong analytical skills and practical orientation, he is able to clearly understand technical issues and find suitable solutions.