Wageningen, Netherlands

Multi family house | 46 sqm installation

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Project summary Technical description Financing Development Downloads

Project Summary

Social housing association De Woningstichting Wageningen a 46 m collective solar thermal system on the roof of one of their apartment buildings. The building hosts 60 apartments for approximately 90 senior people. The system was placed as part of an overall renovation of the collective space and hot water heating system. The realisation of this system fits in its policies and in the energy covenant agreements closed between the social housing association and the municipality.



Type of building

Multi family house

Number of users / dwellings, floors

60 dwellings

Year of construction

not available

Total effective area (heated)

not available

Hot tap water consumption (measured/estimated)

890 m3/a (calculated)

Whole energy consumption for heating purpose after CSTS implementation

49,700 kWh/a

System engineering

Year of construction of CSTS


Type of collectors

Flat plate collectors

Thermal power

32 kWtherm.

Aperture area of collectors*)

46 m2

Buffer storage

1.5 m3

Hot tap water storage

0.75 m3

Total capacity of boilers with energy source

43 kW, gas

Type of hot tap water heating


Type of heating system



Total cost solar system

23,100 Euro

Cost of the CSTS / gross area of collectors

481 Euro/m2


36.8 %


Output of solar heat**)

19,940 kWh/a

Reduction of final energy***)

28,480 kWh/a

CO2-emissions avoided

6 t CO2/a

Solar performance guarantee


*) Aperture area = light transmitting area of the front glass
**) measured, between storage and piping to taps (solar system output)
***) related to the measured output mentioned before



N. N.:

"As a result over the overall renovation of the hot water and space heating system including the solar energy system, the net costs for our tenants did not increase. The system has been functioning well."




De Woningstichting
Olympiaplein 26
Wageningen, The Netherlands


See owner

System manufacturer 

P.O. Box 21
3100 AA Schiedam, The Netherlands


GTI Utiliteit
P.O. Box 2064
2990 DB Sliedrecht, The Netherlands

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