Gedser wind turbine

It was constructed by the engineer Johannes Juul in 1957 for the SEAS (Sydsjællands Elektricitets Aktieselskab) electricity company with support from the Marshall Plan.

[1][2][3] As a 17-year-old, Johannes Juul (1887–1969) had studied wind electricity applications under Poul la Cour at Askov Højskole, a folk high school, in 1904.

In the early 1950s, he built two smaller alternating current turbines which operated at Vester Egesborg near Næstved and on the island of Bogø.

Its electromechanical yawing, asynchronous generator, and the three stall-regulated blades with emergency aerodynamic tip brakes (these were invented by Juul) is a design that is still widely used in Denmark.

In connection with NASA testing for the U.S. wind energy programme, it was refurbished in 1975 and brought back into operation.