Risorse energetiche

Energy audits

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italian version

From September 2014, Environment Park started the energy audits on different buildings identified for the 2020Together project.

audit carotaggio

The audits were performed with inspections and collecting data (geometry, materials, facilities), aiming at identifying the thermal conditions of the buildings and create an energy model for each building. The model was subsequently validated with a margin of error of less than 10% for three successive thermal seasons thanks to a comparison with the real data extrapolated from energy bills provided by the municipalities.

Following the validation of the energy models, a technical and economic analysis was carried out, calculating the energy savings generated, the related payback period and the establishment of the list of priorities for acting in each building.

The analysis carried out within a first group of buildings highlighted a percentage of thermal savings variable from 11% to 40%, depending on the municipalities and their historical costs, with an investments hypothesized of 1.000.000-2.000.000 euros. Investments assumed for the energy efficiency of buildings cover actions such as the renovation of thermal power plants and improved performance of the opaque and transparent components of the building envelop (roof insulation, external wall insulationand replacement of doors and windows). The economic analysis as shown that these energy savings compared to the current expenditures,incurred by municipalities for their buildings, will repay them in a period of time not exceeding 12 years.

 

Energy audits

Energy audits are undertaken in order to make available a description of the energy system, defining the possible actions to improve efficiency and quantify the savings.

Briefly, energy audits were conducted planning the following activities:

  1. surveys with data collection (geometric, material, equipment);
  2. identification of internal and external temperature conditions;
  3. how to manage the plant systems through, if available, the analysis of the reports produced by remote control systems of the last three years;
  4. collection of data relating to real consumption;
  5. instrumental investigations;
  6. construction of an energy model;
  7. validation of the energy model by comparing the data obtained with the needs of real consumption;
  8. identification of energy efficiency measures in the building/plant system and of the method of functioning and related costs;
  9. calculation of the energy savings generated and their return periods discounting investments and savings;
  10. drafting of priority list.

At the end of the activities an Energy Audits report has been prepared. It contains, among others, informations related to:

  • description of the Energy Audit;
  • scope and level of detail, execution times and limits of investigation;
  • information on data collection;
  • measuring instruments;
  • indications of what data have been used;
  • list of adjustment factors and reference data used, including costs and tariffs, calibration certificates, if any, as well as list of units of measure conversion factors;
  • analysis of energy consumption;
  • criteria for the sort of recommendations for the reduction of energy consumption;
  • energy saving actions proposed;
  • appropriate economic analysis;
  • potential interactions between the proposed recommendations.
termografia2

Termography

 analisi1

Measurements

 analisi2

Measurements

 

 Below the interventions for which the energy audits have been carried out :

LEGEND
Interventions on buildings
Interventions on public lighting

 

Azeglio  

azeglio 750x500
grafico azeglio Number of cabinets / counters 17
Number of light spots 333
Electric consumption (MWh) 190

Baldissero  

baldissero 750x500
grafico baldissero Number of cabinets / counters 20
Number of light spots 758
Electric consumption (MWh) 512

Bibiana  

bibiana 750x500
grafico bibiana Number of cabinets / counters 24
Number of light spots 413
Electric consumption (MWh) 238

Borgone di Susa  

borgone_750x500
borgone centro anziani Name Retirement Home
Year of construction 1800 (1990 extension)
Heated floor area 760 m2
Gross heated volume 3.746 m3
Energy consumption - baseline (natural gas) -- m3/year
borgone primaria Name Primary School
Year of construction Years '70
Heated floor area 1.002 m2
Gross heated volume 5.496 m3
Energy consumption - baseline (natural gas) -- m3/year
borgone secondaria Name Secondary School
Year of construction Years '30
Heated floor area 504 m2
Gross heated volume 2.699 m3
Energy consumption - baseline (natural gas) -- m3/year

Bruino  

bruino 750x500
bruino marinella Name Marinella Primary School
Year of construction 1973
Heated floor area 674 m2
Gross heated volume 1.934 m3
Energy consumption - baseline (natural gas) 8.230 m3/year
bruino infanzia Name Primary School
Year of construction 1980
Heated floor area 1.037 m2
Gross heated volume 3.736 m3
Energy consumption - baseline (natural gas) 13.222 m3/year
bruino aldo moro Name Aldo Moro Middle School
Year of construction '60
Heated floor area 3.290 m2
Gross heated volume 10.085 m3
Energy consumption - baseline (natural gas) 36.323 m3/year
bruino municipio Name City Hall
Year of construction '800
Heated floor area 1.035 m2
Gross heated volume 4.796 m3
Energy consumption - baseline (natural gas) 19.392 m3/year
bruino palestra Name Gymnasium Aldo Moro Middle School
Year of construction anni '60
Heated floor area 1.007 m2
Gross heated volume 7.825 m3
Energy consumption - baseline (natural gas) 25.938 m3/year

Bussoleno  

bussoleno 750x500
grafico azeglio Number of cabinets / counters 27
Number of light spots 473
Electric consumption (MWh) 324

Germagnano  

germagnano Name Municipal building, offices, primary school
Year of construction 1900-1950, 1996-1999, 1983-1985
Heated floor area 1.569 m2
Gross heated volume 6.681 m3
Energy consumption - baseline (natural gas) -- m3/year

Metropolitan City of Torino  

torino metropoli 750x500
torino avogadro Name Avogadro Industrial Technical Institute
Year of construction Construction 1805 – raising 1957
Heated floor area 17.485 m2
Gross heated volume 107.610 m3
Energy consumption - baseline (natural gas) 270.851 m3/year
moncalieri pininfarina Name Pininfarina Industrial Technical Institute
Year of construction 1967
Heated floor area 18.545 m2
Gross heated volume 99.810 m3
Energy consumption - baseline (natural gas) 213.504 m3/year

None  

none 750x500
none rubiano Name Rubiano kindergarten
Year of construction anni '70-'80
Heated floor area 1.440 m2
Gross heated volume 5.911 m3
Energy consumption - baseline (natural gas) 18.426 m3/year

Orbassano  

orbassano 750x500
orbassano fermi Name Fermi Primary School
Year of construction 1980
Heated floor area 5.604 m2
Gross heated volume 21.452 m3
Energy consumption - baseline (natural gas) 70.481 m3/year
orbassano palestra neghelli Name Gymnasium Neghelli
Year of construction 1970
Heated floor area 524 m2
Gross heated volume 3.004 m3
Energy consumption - baseline (natural gas) 6.393 m3/year
orbassano pavese Name Pavese Primary School + Andersen kindergarden
Year of construction 1980
Heated floor area 5.160 m2
Gross heated volume 20.961 m3
Energy consumption - baseline (natural gas) 75.038 m3/year
orbassano rodari Name Rodari Primary School
Year of construction 1980
Heated floor area 2.291 m2
Gross heated volume 9.076 m3
Energy consumption - baseline (natural gas) 59.233 m3/year

Pecetto  

pecetto 750x500
grafico pecetto Number of cabinets / counters 18
Number of light spots 716
Electric consumption (MWh) 403

Piossasco  

piossasco 750x500
piossasco andersen Name Andersen kindergarten
Year of construction 1981
Heated floor area 549 m2
Gross heated volume 2.263 m3
Energy consumption - baseline (natural gas) 13.538 m3/year
piossasco cruto Name Cruto Middle School
Year of construction school construction 1976 - gymnasium construction 1983
Heated floor area 3.455 m2
Gross heated volume 15.874 m3
Energy consumption - baseline (natural gas) 40.105 m3/year
piossasco montessori Name Montessori kindergarten
Year of construction 2006
Heated floor area 1225 m2
Gross heated volume 5680 m3
Energy consumption - baseline (natural gas) 14.933 m3/year

Rivalta di Torino  

rivalta 750x500
rivalta_263x175 Name Tetti Francesi Secondary School
Year of construction Years '70
Heated floor area 2.565 m2
Gross heated volume 10.831 m3
Energy consumption - baseline (natural gas) -- m3/year
rivalta 750x500
grafico rivalta Number of cabinets / counters 2
Number of light spots 382
Electric consumption (MWh) 232

Sant'Ambrogio di Torino  

santambrogio_750x500
sant'ambrogio municipio Name Municipal building
Year of construction 1871
Heated floor area 874 m2
Gross heated volume 3.940 m3
Energy consumption - baseline (natural gas) -- m3/year
sant'ambrogio elementare Name Primary School
Year of construction Years '30
Heated floor area 820 m2
Gross heated volume 4.216 m3
Energy consumption - baseline (natural gas) -- m3/year

Settimo Torinese  

settimo 750x500
settimo giacosa Name Giacosa Primary School
Year of construction Years '70
Heated floor area 2.626 m2
Gross heated volume 12.477 m3
Energy consumption - baseline (natural gas) -- m3/year
settimo vivaldi Name Vivaldi Primary School
Year of construction Years '90
Heated floor area 3.160 m2
Gross heated volume 15.298 m3
Energy consumption - baseline (natural gas) -- m3/year
settimo gobetti Name Gobetti Secondary School
Year of construction Years '70
Heated floor area 2.875 m2
Gross heated volume 13.532 m3
Energy consumption - baseline (natural gas) -- m3/year
settimo munari Name Munari kindergarten
Year of construction years '90
Heated floor area 692 m2
Gross heated volume 2.925 m3
Energy consumption - baseline (natural gas) -- m3/year

Volvera  

volvera 750x500
volvera don balbiano Name Don Balbiano Primary School
Year of construction 1960-1966
Heated floor area 1.366 m2
Gross heated volume 6.387 m3
Energy consumption - baseline (natural gas) 23.887 m3/year
volvera don milani Name Don Milani kindergarten
Year of construction 1972-1973
Heated floor area 658 m2
Gross heated volume 3.069 m3
Energy consumption - baseline (natural gas) 10.212 m3/year
volvera primo levi Name Primo Levi Primary School
Year of construction 1979
Heated floor area 1.291 m2
Gross heated volume 5.000 m3
Energy consumption - baseline (natural gas) 17.072 m3/year
volvera campana Name Campana Middle School
Year of construction 1977
Heated floor area 3.318 m2
Gross heated volume 14.906 m3
Energy consumption - baseline (natural gas) 47.776 m3/year
volvera rodari Name Rodari kindergarten
Year of construction 1973-1974
Heated floor area 1.496 m2
Gross heated volume 6.376 m3
Energy consumption - baseline (natural gas) 21.779 m3/year