Welcome to our profile page. With many years of experience in real estate, renewable energy, and IT solutions, we focus on creating practical and sustainable solutions that add value to every project. Our work is rooted in collaboration, innovation, and a commitment to long-term impact.
Led by Knud-Erik Sørensen and Daniel Duvald, our team combines expertise in development and technology with a shared dedication to advancing renewable energy and efficient design. We invite you to learn more about our journey, our projects, and the principles that guide our work.
Founder and owner of Renewable Ltd., Denmark, and co-founder and 50% owner of Højbyhave Ltd., Denmark.
With over 50 years of experience in project development, Knud- Erik has built a career in real estate, beginning as an entrepreneur in housing projects and later working as a real estate agent.
Over the last decade, he has focused on the renewable energy sector, specializing in solar power, wind energy, and biogas, with projects spanning multiple countries.
From 1993 to 1996, he collaborated with Vestas Wind Energy, the world’s largest wind turbine producer, on project development in southern Italy.
In Denmark, he designed and developed a large biogas plant in Grindsted, Jutland.
He also pioneered the development of the FEW (Food- Energy-Water) system, an advanced hydroponic Ultra Climate Greenhouse technology powered by solar and wind energy, integrated with a biogas facility.
This system ensures a continuous supply of green energy, recycles rainwater, and produces organic food, creating synergies between wastewater treatment, energy production, and sustainable agriculture.
As an inventor, Knud-Erik developed the "Spinner," a vertical, low-cost, and silent wind turbine that is virtually invisible in operation.
In addition to his business ventures, Knud-Erik co-founded Denmark’s largest rehabilitation center for alcohol and drug addiction and served as chairman of a nonprofit foundation supporting addiction recovery. They also worked within the Danish prison system.
He also assisted The Red Cross in his hometown on the board, and as an accountant.
In 2008/2009, Knud-Erik led a successful business with 26 employees, holding significant assets in real estate, bank bonds, and pension funds valued at millions of euros.
However, the global financial crisis led to the de facto bankruptcy of their bank, forcing a sale of all assets in a frozen market by spring 2009.
Nine months later, the company faced a €1.2 million deficit and no remaining assets. Today, both the business and personal finances are debt-free.
Daniel Duvald is an IT expert with more than 20 years of experience with development, design and IT solutions.
He is proficient in 3D design and visualization using Autodesk AutoCAD, Revit, Google SketchUp, and Twinmotion. Additionally, he is highly skilled in graphic design software, including Adobe Photoshop, Illustrator, and InDesign, and is an accomplished web developer.
Daniel has been actively involved in numerous development projects and has collaborated with Knud-Erik Sørensen since 2009. His work reflects a strong passion for renewable energy and a commitment to innovative solutions.
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