Previous to this, COLEXON built a 1.5MWp project in Gescher, Germany, in 2006 and another 2.5MWp power plant on a logistic depot in Ramstein, Germany in 2007. At the time of their installation, both plants ranked as the largest of their kind using thin-film modules. The new system will also be constructed using First Solar modules - currently, the most cost effective thin-film technology.
'First Solar modules are more cost effective per kWh than conventional crystalline silicon modules due to their thin-film technology and manufacturing processes. In addition to a lower temperature coefficient, they also generate higher energy output under diffuse solar irradiance.
Thanks to their cost effectiveness and performance advantages, First Solar's thin-film modules are particularly well suited for large scale solar power plants', explains Thorsten Preugschas, CEO of COLEXON Energy AG. First Solar modules are also covered by a collection and recycling agreement that enables the owner to return the modules to First Solar at no cost at the end of the module lifetime for recycling.
For the construction of the system approximately 64,000 modules are installed on a roof-top area of 95,000 sqm. After completion, which is scheduled by the end of 2008, the plant will generate an estimated electrical power of 4.35 million kilowatt hours per year, which corresponds to a reduction in carbon dioxide emissions of approximately 3,800 tons per year.