We are Doro

Team & Advisory Board

doro introduces itself

Energy of the future

doro Turbinen GmbH was founded in 2017 with the aim of developing an environmentally friendly small hydropower turbine to gently tap previously untapped hydropower potential. The name doro stands for double rotation and describes the operating principle of the core technology. The idea to develop a turbine with a double rotation for the utilisation of small heads came to Josef Strein after he had worked for many years at a leading company in the field of hydropower. Since the foundation, there have been successes and also setbacks, as is so common in a start-up. Even the pandemic was not easy for the company. Despite the difficulties, Team doro has grown steadily and, with a financially strong investor, the first doro-C power plant was put into operation in early 2022. The prototype serves on the one hand as a research power plant to document the characteristics of the turbine and on the other hand as a show power plant for interested customers. In addition to Josef Strein, Gert Prügger, Manfred Egger, Thomas Suppan and Christian Tschabuschnig are part of the doro team. 

All employees of doro Turbinen GmbH are also shareholders. Together with the investors, they are working to make energy affordable for everyone. And they are doing so with a focus on simple and sustainable technology for generating electricity from hydropower.

Christian Tschabuschnig

Christian Tschabuschnig


As CEO, Christian Tschabuschnig is responsible for the development of control and electrical engineering and, since the beginning of the year, also for administration and accounting. Before that, he was responsible for commissioning and repairs at Knapp Logictics.

Manfred Egger

Manfred Egger


After successfully completing his studies in mechanical engineering at the Technical University of Graz, Manfred Egger began working for doro Turbinen GmbH in the field of CFD simulation and FE analysis. Today he is the company’s CTO and has also taken over design and development.

Thomas Suppan

Thomas Suppan


With his diploma thesis in cooperation with the company doro Turbinen GmbH, Thomas Suppan completed his studies in mechanical engineering at the Technical University of Graz and then began working in design and development at the company. Since the completion of the prototype, his main focus has been on project development.

Advisory Board

Dr. stefanie Werinos

Environmental Lawyer

Stefanie Werinos is an expert in public commercial law with a focus on public procurement, environmental and planning law as well as mobility law and public life science and health care. She has more than 15 years of experience and advises and represents her clients in complex planning and approval procedures for plant and infrastructure and mobility projects.


DI Günter Parthl

Self-employed ecologist

Günter Parthl studied at the University of Natural Resources and Applied Life Sciences and runs an engineering office for applied water ecology in Stainz. He specialises in fish ecology issues, watercourse structuring as well as flow measurements and calibrations in the field of hydropower.


Dr. techn. Michael Bader

Management Consultant Assoc. Prof. and Deputy Head of the IME at TU Graz

Michael Bader’s areas of activity include design theory and product development, test bench technology and testing, drive technology with a specialisation in rolling bearing systems and shaft-hub connections.


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The doro team supports you with its qualified expertise for innovative niche solutions in hydropower, in optimal energy planning and the development of untapped potentials for power generation.

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