The first stage of the plant includes 23,500 solar modules from the French manufacturer "Photowatt" at an estimated efficiency of 14%, with a nominal power output of 4 MW p EPIA - Newsletter  and occupies a total area of 50000 meters square http://www.city-solar-ag.com/fileadmin/templates/images/downloads/ENGLISH%20CS%20Referenzen.pdf The construction of the second stage required another 50,000 PV modules. [