First lay-down heliostat with monolithic mirror-panel, closed loop control, and cleaning system

Abstract

The first lay-down heliostat with monolithic concentrator was erected at the Solar Tower Jülich. The main components and their main features are described: azimuth and elevation drive, concentrator, control, and the cleaning system concept. The dimensions of the elevation drive and the carriage already match the requirements of a 50m2 heliostat that shall be developed in a follow-up project.