GPSS was founded as a Société Anonyme by Patrick Witte, Michel Witte and Philipp Fisch in April 2021. Our goal is to make renewable energies accessible and usable for various users through innovative approaches in the field of production and storage.

Since our founding, we have selectively expanded our team through specialised competences:

Patrick Witte

General Manager
Engineer, M. Sc. RWTH Aachen

In my role as Founder and General Manager of the company, I manage the activities of GPSS. My focus is on filling a gap in Luxembourg’s energy ecosystem through the development of renewable energies and the local production of green hydrogen. For this purpose, I am approaching potential partners and customers for the realisation of further projects.

More info

Philipp Fisch

Director & Chief Technology Officer (CTO)
Engineer, M. Sc. RWTH Aachen

As part of the founding team and CTO at GPSS, I contribute my expertise to the consulting, realisation and technical development of our energy ecosystems. I am of the opinion that hydrogen is the energy carrier of the future. That is why I decided to specialise in the application of hydrogen during my studies through my thesis and my scientific work.

More info

Isis Khalil

Project Manager Agri-PV
Biologist, M. Sc. Environmental Sciences

As a Project Manager, I consult clients and develop flexible solutions for the realisation of Agri-PV systems that are adapted to their needs. Thanks to my studies in the field of environmental sciences, I acquired the necessary knowledge about the agricultural prerequisites for an optimal adaption of power production to those demands.

More info

Sebastian Theissen

Project Manager Green Power to Hydrogen
Engineer, M. Sc. RWTH Aachen

At GPSS, my position focuses on the development of our design and control software as well as project planning. In doing so, I can draw on my in-depth knowledge of modelling and simulation. By using digital twins and methods of AI and machine learning, renewable energies and hydrogen production can be adapted to the respective customer needs in the best possible way.

More info

Michel Witte

Director & Investor

In my previous position as CEO and Co-Founder of IEE, I obtained many years of experience in the management of an internationally operating company. As a Director and Founder, I bring this knowledge and the network of contacts I have developed into the activities of GPSS.

More info