The only one of its kind anywhere in the world, a unique solar power station with a planned output of 1.5 megawatts went on-grid in Jülich (near Aachen, Germany) at the end of 2008. To be sure of staying on schedule with the 60 m tall in-situ concrete core even in poor weather conditions, contractors Ed. Züblin AG used Doka guided climbing formwork Xclimb 60.