The 165-year-old Copenhagen park is in negotiations with Vestas, a local specialist in wind turbine technology.

"We are working with both Vestas and DONG Energy on steadily converting to greener energy," Tivoli MD Lars Liebst said recently. "In the longer term it will be fantastic if we can get connected to a giant wind turbine."

It is hoped that all the park’s amusements will run off wind-generated electricity by the end of the year.