Tvindkraft

Built between 1975–78 by teachers and students of Tvind Schools, Tvindkraft was Denmark’s largest wind turbine until 2000. At 54 m tall with concrete tower and nacelle and glass‑fiber blades, it remains the world’s oldest multi‑megawatt turbine still in operation. Originally rated at 2 MW, it has historically produced up to 1 MW to match grid capacity, generating significant electricity for the local community. Its design prompted research at Risø DTU into turbine aerodynamics and back‑runner operation. Today it stands as a foundational structure in wind-energy engineering, showing the evolution from experimental prototypes to modern turbine design.

Tvindkraft is open to visitors year-round. A free educational exhibition at the turbine’s base explains its history and technology. Guided tours are available on request—teachers, volunteers, or turbine keepers host visits, offering insights into turbine mechanics and climate action. Groups can arrange tailored visits, including an optional tour of the international school. A small shop offers brochures, models, and postcards. Contact ahead to schedule a tour, particularly for group visits; walk-ins are usually welcomed at the exhibit area.