Gedser turbine

a 200 kW wind turbine built in 1957 on the Gedser coast of southern Denmark, considered to be the first wind turbine connected with an (asynchronous) AC generator to an electrical grid. It had huge 24 meter sails and was for many years the largest wind turbine in the world. It operated for 11 years with little maintenance and is now displayed at the Danish Museum of Electricity.