5 years in figures

2015  2014 2013 2012 2011
Materials
Total material usage (t)  100 767 88 736  91 720 99 570 98 142
Metals (t)  73 285 65 363  69 991 70 323 65 263
Sand (t)  20 915 16 445  16 537 21 279 23 072
Chemicals (t)  5 025 5 447  3 865 6 730 7 963
Others (t)  1 542 1 481 1 327 1 238 1 844
Energy
Total energy consumption (TJ)  1 539 1 475  1 613 1 691 1 735
Electricity consumption (MWh)  142 819 140 713 143 833 143 810 145 078
Purchased electricity (MWh)  131 501 131 896 136 098 125 761 129 885
Generated electricity (MWh)  11 318 8 817 7 735 18 007 15 109
Sold electricity (MWh)  21 834 25 548 23 527 22 568 36 893
Heat consumption (MWh)  30 161 25 073 29 077 27 910 31 805
Light fuel oil (t)  4 801 4 461 4 765 5 096 3 409
Heavy fuel oils (t)  3 675 3 579  3 755 5 920 7 652
Natural gas (t)  9 750 8 721 9 806 9 767 10 486
Other fuels (t)  2 834 3 348 4 214 4 025 4 173
Water
Total water consumption
(1 000 m³)
 6 971 7 774 7 534 9 546 9 775
Consumption of domestic water (1 000 m³)  703 683 744 799 830
Consumption of cooling water (1 000 m³)  6 268 7 091 6 790 8 747 8 945
Emissions
Emissions of nitrogen oxides (t)  553 519  549 697 765
Emissions of carbon dioxide (t) (direct)  63 441 57 477 59 631 63 762

68 897

Emissions of carbon dioxide (t) (indirect)  60 317 55 989 57 040 54 011 56 610
Emissions of carbon dioxide (t) (indirect - flights)  39 033 39 619 40 596 39 033 37 459
Emissions of sulphur oxides (t)  63 76 91 145 265
Emissions of total hydrocarbons (t)  145 87 130 180 166
Particulates (t)  9 9 10 13 20
Emissions of VOC (t)  40 40 49 51 58
Waste
Total waste (t)  52 037 46 829 44 741 62 517 85 153
Non-hazardous waste (t)  44 864 39 409 33 623 39 512 42 865
Hazardous waste (t)  7 173 7 420 11 118 23 005 42 288