Close

Environment

The environmental impacts of Wärtsilä's operations largely relate to manufacturing. The main environmental aspects of manufacturing relate to the use of energy and natural resources and thus also to the emissions that are produced by the manufacturing processes. Product development also requires the testing of products and individual components which, alongside manufacturing, loads the environment. However, the positive impacts of product improvements on the environment far outweigh the negative impacts of testing when taking the product's entire lifecycle into account.

The main reasons for significant fluctuations in certain reported environmental performance indicators from year to year are:

  • Changes in production volumes
  • Changes in R&D testing programmes
  • Changes in company structure (divestments, mergers, and acquisitions)
  • Changes in the reporting scope and coverage

Monitoring environmental impacts

Within Wärtsilä, environmental impacts caused by operational activities are monitored as follows:

  • Participation in the monitoring of air quality with other local stakeholders
  • Measurement of air emissions
  • Charting of noise levels
  • Periodical effluent analysis
  • Soil analysis
  • Dispersion analyses and bio-indicator surveys
Materials
Materials used by weight or volume (G4-EN1)
The main materials used in Wärtsilä products are various metals: cast iron, alloy and structural steel, aluminium alloys, and bronze. In 2016, the total material usage was 84 913 tons (100 767). The major material groups were various metals 71%, sand 22%, and various chemicals 2%.
Materials 2016 2015 2014 2013 2012
Total material usage (t) 84 913 100 767 88 736 91 720 99 570
Metals (t) 59 898 73 285 65 363 69 991 70 323
Sand (t) 18 399 20 915 16 445 16 537 21 279
Chemicals (t) 1 831 * 5 025 5 447 3 865 6 730
Others (t) 3 601 1 542 1 481 1 327 1 238
* A substantial error in reporting classifications was corrected in 2016, meaning that the figure is not directly comparable to earlier years.
Percentage of materials used that are recycled input materials (G4-EN2)
The main materials used in Wärtsilä products are various metals: cast iron, alloy and structural steel, aluminium alloys and bronze. Recycled material content of these metals vary depending on the material and supplier in question. Recycled material, such as end-of-life coins and bronze propellers, is used for example in the casting of new propellers.
Energy
Energy consumption within the organisation (G4-EN3)
The total energy consumption (in terajoules, TJ) includes the electricity, heat, and fuels used in Wärtsilä companies in recent years. The fuels are used mainly in engine testing, but also in heating, production, and transportation. In 2016, the fuels were from non-renewable sources.

Wärtsilä uses electricity in its manufacturing operations - for example in machining components - and in service workshops and offices. Both the electrical and the heat energy generated during engine test runs can be utilised. Wärtsilä's aim is to use the electrical energy for its own purposes while also selling part of this electrical energy to local power companies. Due to the nature of engine test runs, the production of electricity and the company's electricity demand are not equivalent; this allows the surplus energy to be sold to local power companies.

Heating for factories and offices accounts for most of Wärtsilä's consumption of heat energy. In several factories, the heat generated in engine test runs is used for heating. Some factories and offices are connected to a local district heating network, some have their own heating plant, and some use electricity for heating.
Energy 2016 2015 2014 2013 2012
Total energy consumption (TJ) 1 471 1 539 1 475 1 613 1 691
Electricity consumption (MWh) 139 363 142 819 140 713 143 833 143 810
Purchased electricity (MWh) 132 771 131 501 131 896 136 098 125 761
Generated electricity (MWh) 6 592 11 318 8 817 7 735 18 007
Sold electricity (MWh) 23 620 21 834 25 548 23 527 22 568
Heat consumption (MWh) 33 542 30 161 25 073 29 077 27 910
Light fuel oil (t) 3 918 4 801 4 461 4 765 5 096
Heavy fuel oils (t) 3 647 3 675 3 579 3 755 5 920
Natural gas (t) 8 614 9 750 8 721 9 806 9 767
Other fuels (t) 3209 2834 3348 4214 4025
Energy intensity (G4-EN5)
Energy 2016 2015 2014 2013 2012
Total energy consumption (TJ)/Net sales 0.313 0.334 0.319 0.354 0.406
Reduction of energy consumption (G4-EN6)
The Wärtsilä Energy Efficiency programme was launched in 2008. The ultimate goal of this programme is to reduce Wärtsilä’s energy consumption by at least 10% in terms of absolute consumption (GWh) by 2016 compared to mean energy consumption in 2005. Since the launch of the programme comprehensive energy audits have been carried out in the nine most energy consuming countries. The energy audits have revealed the savings potential and measures to improve energy efficiency and have been used as a concrete basis for energy saving actions. These energy saving actions have achieved reductions of energy consumption of various energy types, including electricity, heat and fuels. For the smaller energy consuming companies, Wärtsilä has created tools for identifying the energy saving potentials. By the end of 2016 energy savings of 43.3 GWh have been reached.
Energy savings 2016 2015 2014 2013 2012
Annual energy savings 1.3 GWh 4.6 GWh 1.9 GWh 15.7 GWh 7.5 GWh
Cumulative energy savings 43.3 GWh 42.0 GWh 37.5 GWh 35.6 GWh 19.9 GWh
Water
Total water withdrawal by source (G4-EN8)
Wärtsilä's water consumption can be divided into two categories: domestic use and cooling use. Domestic water is used mainly for sanitary purposes and by industrial equipment, such as machine tools and washing machines. Some factories also use domestic water to produce moulds or to fill in their closed-loop cooling system needs. Wärtsilä uses seawater for its engine and process cooling needs.

Total annual water consumption split by the water withdrawal source: Out of cooling water about 99% comes from local surface watercourses where only heat is released along with clean water, and about 1% of cooling water comes from municipal water utilities. Out of Wärtsilä’s total water consumption in 2016, about 92% was seawater for cooling purposes, about 6% was from municipal water supplies, about 1% was directly withdrawn groundwater, and about 0.05% was rain water or waste-water reused from another organisation.
Water 2016 2015 2014 2013 2012
Total water consumption (1 000 m³) 8 444 6 971 7 774 7 534 9 546
Consumption of domestic water (1 000 m³) 613 703 683 744 799
Consumption of cooling water (1 000 m³) 7 831 6 268 7 091 6 790 8 747
Water sources significantly affected by withdrawal of water (G4-EN9)
No water source has been found to be significantly affected by any Wärtsilä subsidiary water withdrawal.
Percentage and total volume of water recycled and reused (G4-EN10)
Wärtsilä Italia S.p.A. recycled 153 070 m3 of water in 2016 by running it through a water treatment plant and reusing the cleaned water in production processes. The amount corresponds to roughly 61% of Wärtsilä Italia’s annual water consumption and 2% of Wärtsilä’s total water consumption in 2016. No other major water recycling processes are in use in Wärtsilä production facilities globally.

Emissions
Greenhouse gas (GHG) emissions (G4-EN15-EN18)
In addition to direct CO2 emissions, Wärtsilä’s operations generate indirect CO2 emissions. In 2016, the calculated secondary CO2 emissions were 59 697 tons (60 317) (from purchased electricity and heat) and the CO2 emissions from flights totalled 37 972 tons (39 033).
GHG emissions 2016 2015 2014 2013 2012
Emissions of carbon dioxide (t) (direct) (SCOPE 1) 57 355 63 441 57 477 59 631 63 762
Emissions of carbon dioxide (t) (indirect) (SCOPE 2) 59 697 60 317 55 989 57 040 54 011
Emissions of carbon dioxide (t) (indirect) (SCOPE 3) 168 571 * 39 033 39 619 40 596 39 033
GHG emissions intensity (all) 60.8 35.30 33.10 34.50 37.70
* Includes indirect emissions from materials, energy, and flights from 2016. Pre-2016 figures only include emissions from flights.
Reduction of greenhouse gas (GHG) emissions (G4-EN19)
Wärtsilä has taken several measures to reduce its indirect CO2 emissions. The energy efficiency commitment aims to reduce energy consumption and emissions. In addition, Wärtsilä’s focus lies on reducing travelling by implementing a strict travel policy and by using three main virtual meeting concepts: Skype instant messaging, which enables live chats between two people or more, Skype meetings allowing multi-person meetings from personal computers, in which presentation material can be shared, and the Telepresence videoconferencing system. In Wärtsilä, Skype and Telepresence are in everyday use. Approximately 1 300 Skype conferences are arranged daily, 82 video conference rooms in 37 countries and 38 Telepresence rooms established in Wärtsilä premises in 19 countries.
NOx, SOx and other significant emissions (G4-EN21)
Air emissions are mainly caused by test runs and the painting of completed engines or other Wärtsilä products. Test run emissions consist of nitrogen oxides (NOx), sulphur dioxide (SOx), carbon dioxides (CO2) and particles, as well as small amounts of other emission components. The painting of engines and other Wärtsilä products generates VOC emissions (volatile organic compounds). Engine emissions are reduced through research and development, as well as product development and testing. These measures also generate emissions, but their results reduce the future emissions of manufactured engines.
Emissions 2016 2015 2014 2013 2012
Emissions of nitrogen oxides (t) 500 553 519 549 697
Emissions of sulphur oxides (t) 59 63 76 91 145
Emissions of total hydrocarbons (t) 116 145 87 130 180
Particulates (t) 9 9 9 10 13
Emissions of VOC (t) 30 40 40 49 51
The primary sources of manufacturing noise are the engine test runs and the ventilation machinery on factory roofs. This noise is mostly low frequency and is therefore not easily detected by the human ear. Wärtsilä has specifically addressed the issue of noise protection using technical means and has succeeded in lowering noise levels considerably. However, noise abatement is a continuous need and requires regular monitoring.
Effluents and waste
Total water discharge by quality and destination (G4-EN22)
Wärtsilä uses seawater for its engine and process cooling needs, in which case the cooling water system is kept separate so that only heat is released into the natural water system. Wastewater is sewered and piped to the local wastewater treatment plant or treated on site before being discharged. If the effluent is not suitable for discharge, it is taken away for appropriate processing, for example to a special treatment plant for hazardous wastes.

Several Wärtsilä subsidiaries have environmental permits allowing clean or properly treated water discharge into natural water bodies. Most of this discharge is clean cooling water released back into local surface watercourse, where only heat is released.

In 2016, the total amount of water discharge was 8 515 221 m3.
2016 water discharge Municipal sewer Sea River Ground
Amount (m3) 259 858 7 820 626 403 535 31 185
% of total water discharge 3 92 5 0
Total weight of waste by type and disposal method (G4-EN23)
Manufacturing activities cause various wastes. These are divided into two main categories: hazardous and non-hazardous wastes. Hazardous wastes include cutting fluids, various types of waste oil, paints and solvents, oily wastes, solid wastes, etc. Non-hazardous wastes include scrap metal, metal swarf, waste plastics, waste wood, domestic waste, cardboard, and paper waste. All Wärtsilä companies sort their waste according to local municipal regulations. Generally speaking, the main sorting categories are waste to be incinerated, waste for landfills, and waste for recycling.

Waste management in Wärtsilä has four aims, listed in their order of priority:

• to reduce the amount of waste generated in processes
• to use waste as a material
• to use waste as energy
• to dispose of waste in an environmentally sound way
Waste 2016 2015 2014 2013 2012
Total waste (t) 50 020 52 037 46 829 44 741 62 517
Non-hazardous waste (t) 42 663 44 864 39 409 33 623 39 512
Hazardous waste (t) 7 357 7 173 7 420 11 118 23 005
Waste for landfills (t) 9 962 8 593 9 621 16 875 21 988
Waste for recycling (t) 30 695 34 074 27 328 14 622 15 423
Waste for incineration (t) 1 889 2 197 2 460 2 125 2 101
Hazardous waste for landfills (t) 964 2 586 2 504 6 360 17 376
Hazardous waste for recycling (t) 5 470 3 502 3 792 2 796 3 200
Hazardous waste for incineration (t) 923 1 084 1 124 1 963 2 429
Products and services
Extent of impact mitigation of environmental impacts of products and services (G4-EN27)
Environmental products and services are the most important means for Wärtsilä to mitigate the environmental impacts. Wärtsilä has a key role in providing environmentally sound solutions and services that enable our customers to develop their business in a sustainable way. The value of sustainable innovation is delivered across a wide range of environmentally sound products and solutions, including technologies related to efficiency improvement, reduction of gaseous and liquid emissions, effluent and ballast water treatment, as well as to products and solutions that are flexible, efficient, reliable, safe, cost-efficient to operate, and that have a minimal environmental footprint throughout their lifecycles.
Expenditures
Total environmental protection expenditures and investments by type (G4-EN31)
Concerning Wärtsilä’s operations, we have defined expenditures as environmental expenditures if they are related to soil, water and air pollution control, waste management, environmental management, or noise control.

A substantial proportion of the company's investments in product development are targeted at securing environmental compliancy providing short- and long-term benefits for the whole value chain and ultimately for the environment.
Expenditures 2016 2015 2014 2013 2012
R&D costs (MEUR) 131 132 139 185 188
Environmental costs
Environmental capital expenditures (MEUR) 0.7 0.5 1.9 0.6 0.8
Environmental operating expenditures (MEUR) 4.0 4.6 4.8 5.1 6.3

Note

Add a note?

Close

For the best experience of our Annual Report, please update your browser to a newer version.