Energy and environment figures 1)

  Unit 2020 2018 2016 % change
(2018 – 2020)
           
Produced products t 53,991 64,840 81,154 –16.73%
           
Fossil energy (total) kWh 125,095,638 145,525,724 151,487,778 –14.04%
thereof, natural gas kWh 125,094,079 145,315,802 151,234,328 –13.92%
thereof, heating oil kWh 1,559 209,922 253,450 –99.26%
           
Electricity (total) kWh 27,896,714 31,942,746 29,530,515 –12.67%
           
Fresh-water volume m3 746,075 879,260 812,777 –15.15%
           
Wastewater volume m3 888,542 1,019,488 1,089,813 –12.84%
           
Energy/output (fossil) kWh/t 2,317.0 2,244.4 1,866.7 3.23%
           
Energy/output (electricity) kWh/t 516.7 492.6 363.9 4.88%
           
Fresh water m3/t 2 13.8 13.6 10.0 1.90%
           
Wastewater m3/t 2 16.5 15.7 13.4 4.67%
           
COemissions t 29,566 34,340 35,178 –13.90%
           
COemissions/prod. product kg/t 547.6 529.6 433.5 3.4%

1) All figures refer exclusively to the Swiss plants Hochdorf and Sulgen.
2) (Waste) water per tonne of produced products