Meeting sustainability challenges requires not only innovations but also transitions towards sustainability paths. Studies which use technological innovation systems and multi-level-perspective approaches show that the development of innovation systems is a complex process, with many direct and...

This article examines the efficiency of wind energy production. We quantify production losses in four wind parks across Germany for 19 wind turbines with non-convex efficiency analysis. In a second stage regression, we adapt the linear regression results of Kneip, Simar, Wilson (2014) to explain...