Energy efficiency complex project: low-CO2 district heating supply of the future - transformation of the district heating network in Pirna

Lot 3.1 Solar thermal system.

Erection of solar thermal system on the refurbished reinforced concrete ceiling of a drinking water tank: solar thermal collector array (total output approx. 171 kW)

Made of raised CPC vacuum tube collectors, installation angle 30o, collector gross area approx. 342 m²; collector stand with weighting for stability protection (installation on the gravel of the elevated tank without fixed connection to concrete ceiling); 1 complete solar station with all hydraulic, electrical and Control system components as well as ancillary systems such as pressure holding systems etc. (indoor) in on-site technical building (useful area 5.75 m x 4 m); production of electrical house connection and installation of electrical equipment of the technical building (power supply, lighting); lightning protection and equipotential bonding collector array; Solar main line KMR-Flex DN50 as well as collector array cabling approx. 25 m buried outside (on-site civil engineering work) for connection to the collector array to the solar station; FM conduit approx. 40 m underground pipe laid down (civil engineering services on site) for subsequent connection of the solar thermal system to PLT of the Pirna municipal utility.