Scuola Cepina

Valdisotto (SO), Italy

School | 23 sqm installation



The municipality of Valdisotto, located in northern Italy, decided to finance a study on the municipal building stock to identify the most suitable buildings for solar thermal installations. One of the local schools, which gym is opened the whole year, is a proper target for a solar thermal plant.
The assessment shows that a 16 kWth system would cover 60 % of the fuel demand, thus reducing CO2 emissions by over five tons every year.
A national subsidy program for local authorities may co-finance the investment by 30 %, thus leading to a lower energy price than purchasing conventional fuel.



Type of building


Number of dwellings, floors

30 users

Year of construction

not available

Total effective area (heated)

not available 

Hot tap water consumption

520 m3/a

Whole energy consumption for heating purpose (present situation)

not available

Proposed CSTS (main variant)

Type of collectors

Flat plate collectors

Thermal power

16 kWtherm.

Aperture area of collectors*)

23 m2

Buffer storage

1.5 m3

Hot tap water storage

0.45 m3

Total capacity of boilers

480 kW

Type of hot tap water heating


Type of heating system


Estimated Costs

Total cost solar system

18,500 Euro

Cost of the CSTS/gross area of collectors

800 Euro/m2

Available Subsidies

30 %

Predicted System Output

Output of solar heat

14,200 kWh/a

Reduction of final energy

19,000 kWh/a

CO2-emissions avoided

5.1 t CO2/a

*) Aperture area = light transmitting area of the front glass


Proposed System Scheme



Comune di Valdisotto

Assessment by

Ambiente Italia srl
Via Carlo Poerio 39
20129 Milano, Italy
Tel.: +39 02 27744-0



This assessment summary (English)

379 K


Detailed assessment report, 14 pages (Italian)

367 K