Wind turbine Concept design and study in pencil by Frits Ahlefeldt – See all the hiking Concept sketches here
See all wind turbine concept sketches here
Floating atoll wind turbine design for biodiversity
Text and concept sketch by Frits Ahlefeldt. Hiking.org
Variant of the off shore wind turbine idea
Keywords: wind power, sustainability, climate change, global warming, design, hiking, innovation, sketch, pencil, drawing, concept
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