In late 2014, the state government enacted legislation stipulating that wind parks need to be built at a minimum distance to the nearest housing of ten times the turbine height (measured from the tower base to the tip of the blade).

As low to moderate winds predominate in the densely populated southern state, that often means a distance of about 2km, which makes most new developments impossible. Bavaria is Germany's biggest state and second-most populous (12 million).

Industry experts expect the court to deliver its judgment in the next two months.