About WAIYS
The WAIYS team benefits from some of the most experienced professionals with backgrounds in energy, data centre industry, finance and security. Our senior management team has an impressive track record of value creation within oil and gas and in pioneering wind and solar power projects.
The WAIYS team

Nicolas Röhrs
Serial entrepreneur and experienced Chief Executive Officer. Working for Cloud & Heat Technologies GmbH, with a demonstrated history in leading and founding startups, developing new business models, cost- and process optimization, investor relations and fundraising. Before Cloud & Heat Technologies he worked for Sanofi Aventis and Lufthansa Technik AG in strategy and business development.
Serial entrepreneur and experienced Chief Executive Officer. Working for Cloud & Heat Technologies GmbH, with a demonstrated history in leading and founding startups, developing new business models, cost- and process optimization, investor relations and fundraising. Before Cloud & Heat Technologies he worked for Sanofi Aventis and Lufthansa Technik AG in strategy and business development.

Øyvind L. Vesterdal
Øyvind L. Vesterdal is a prominent leader in the renewable energy industry. As the former CEO of Norsk Solar, an Independent Solar Power Producer and Developer, which later became Norsk Renewables, he was instrumental in evolving the company from its initial stages in 2017 to a successful IPO in 2021. His strategic leadership was critical in securing project development and project finance for global projects, securing strategic partnerships with renowned international finance institutions, while building a robust international organization.
Øyvind L. Vesterdal is a prominent leader in the renewable energy industry. As the former CEO of Norsk Solar, an Independent Solar Power Producer and Developer, which later became Norsk Renewables, he was instrumental in evolving the company from its initial stages in 2017 to a successful IPO in 2021. His strategic leadership was critical in securing project development and project finance for global projects, securing strategic partnerships with renowned international finance institutions, while building a robust international organization.

Marie Andrea Stenfeldt
Experienced CEO with 15+ years experience as Managing Director in both corporate and private sectors, with a track record of building and operating several hyperscale DCs in Europe and Central Asia. Marie has worked internationally in the Shipping Industry and served amongst others as a CEO and Board member for A.P. Moller Maersk, positioned in the Middle East and South East Asia where she was involved in the planning and execution of multiple heavy construction projects such as Sea Ports, Container Depots and large scale WND facilities.
Experienced CEO with 15+ years experience as Managing Director in both corporate and private sectors, with a track record of building and operating several hyperscale DCs in Europe and Central Asia. Marie has worked internationally in the Shipping Industry and served amongst others as a CEO and Board member for A.P. Moller Maersk, positioned in the Middle East and South East Asia where she was involved in the planning and execution of multiple heavy construction projects such as Sea Ports, Container Depots and large scale WND facilities.

Kristina Rübenkamp
Kristina is a finance executive with CFO experience from V21 GmbH, and deepXscan GmbH, while also being a board member at the Deutsche Bundesbank in Sachsen and Thüringen. With over a decade of experience in corporate finance, she specializes in business strategy, M&A, and start-ups. Kristina is known for her strategic leadership in financial management across various sectors, including innovative tech startups and corporate settings in Dresden, Hamburg, and Leipzig.
Kristina is a finance executive with CFO experience from V21 GmbH, and deepXscan GmbH, while also being a board member at the Deutsche Bundesbank in Sachsen and Thüringen. With over a decade of experience in corporate finance, she specializes in business strategy, M&A, and start-ups. Kristina is known for her strategic leadership in financial management across various sectors, including innovative tech startups and corporate settings in Dresden, Hamburg, and Leipzig.

Holm Puder
Wide range of different skills. Leading a team of 25+ Engineers.10 years experiences of managing CAD team for production processes. 5 years experiences with European customers. Different Programming Languages. 3D metal printing. Team Lead Thermal Design. Leading of Data center container founding development.
Wide range of different skills. Leading a team of 25+ Engineers.10 years experiences of managing CAD team for production processes. 5 years experiences with European customers. Different Programming Languages. 3D metal printing. Team Lead Thermal Design. Leading of Data center container founding development.

Dr. Jens Struckmeiner
CTO Cloud & Heat Technologies. Inventor and Entrepreneur. Focus areas: Green Technology, Heat Recovery, Big Data, Nanotechnology, AI, Edge Computing, Blockchain. Founded Cloud & Heat Technologies GmbH in 2012. Co-Founder of nAmbition GmbH sold to JPK Instruments in 2004, now Brucker Instruments
CTO Cloud & Heat Technologies. Inventor and Entrepreneur. Focus areas: Green Technology, Heat Recovery, Big Data, Nanotechnology, AI, Edge Computing, Blockchain. Founded Cloud & Heat Technologies GmbH in 2012. Co-Founder of nAmbition GmbH sold to JPK Instruments in 2004, now Brucker Instruments

Tobias Hobbach
15+ years of experience as Chief Financial Officer, Manufacturing Excecutive and Renewable Energy Entrepreneur. Founder and Managing Director of Sustain Power and Sustain Solar in South Africa. The journey as energy entrepreneur in Africa has taken him across numerous countries applying various technologies including biogas, waste to energy, solar PV and battery storage
15+ years of experience as Chief Financial Officer, Manufacturing Excecutive and Renewable Energy Entrepreneur. Founder and Managing Director of Sustain Power and Sustain Solar in South Africa. The journey as energy entrepreneur in Africa has taken him across numerous countries applying various technologies including biogas, waste to energy, solar PV and battery storage