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Environmental performance indicators in Switzerland

    Unit   2011   2012   2013
                 
Land/buildings                
Net floor space (NFS)   million of m2   0.91   0.91   0.92
                 
paper consumption                
Total paper consumption   tonnes   9,587   8,764   4,759
                 
Water/sewage                
Water consumption 1   m3   468,577   466,581   475,701
                 
Energy, electricity                
Electrical energy consumption 2, 3   terajoule   1,479   1,471   1,435
    GWh   411   409   399
                 
Energy, heating 4                
Heating oil   terajoule   130.9   149.3   155.2
Natural gas   terajoule   18.9   22.4   25.4
District heating   terajoule   27.2   29.3   27.3
Heating, total   terajoule   177.6   201.0   207.9
                 
Energy, fuel                
Petrol   terajoule   53.7   38.5   27.5
Diesel fuel   terajoule   114.8   127.1   140.0
Natural gas   terajoule   2.2   2.7   1.5
Total fuel   terajoule   170.7   168.3   169.0
Vehicles   number   3,332   3,372   3,628
Kilometers driven   million of km   67.7   69.9   71.3
Average carbon dioxide CO2 emission 5   g per km   140.0   131.0   123.0
                 
Energy, total                
Energy consumption   terajoule   1,827   1,840   1,812
    GWh   507   511   503
                 
Air emissions                
Carbon dioxide CO2-eq from the consumption of fossil energies 6   tonnes   23,242   24,662   25,260
Nitrous gases NOx 7   tonnes   23.2   24.9   26.2
Sulphur dioxide SO2 8   tonnes   4.4   5.0   5.2
                 
Waste                
Total amount of waste   tonnes   2,345   3,127   3,226
1 The water consumption extrapolated on the basis of the average rate of 115 litre per FTE per day.
2 Energy conversion: 1 terajoule (TJ) = 0.278 gigawatt hours (GWh).
3 The power consumption 2012 was adjusted.
4 The energy consumption is based on a forecast of a monthly measure of the consumption of 62 buildings (with a total floor space of over 50%).
5 Average emissions per kilometre refer to manufacturer's indications.
6 CO2-emissions from consumption of fossil energies, without district heating and refrigerant fluid. Swisscom published a complete climate report according to ISO 14064.
7 From Mobitool (www.mobitool.ch), car traffic, national 5-200 km, direct use, load 1.25, fuel consumption 6.7 litres per 100 km (2013).
8 According to publications "Pollutant Emissions from Road Transport, 1990 to 2035, FOEN, update 2010, annex 6, p. 91, 2010" and "Worksheet emissions factors combustion", FOEN, 2005 (in german).