Metrics
Water and water intensity
WACKER includes all fully consolidated companies when recording its various water volumes. Reporting takes all relevant sites into account. Data is collected at the sites on the basis of local legal requirements, enabling data to be used both for the Group’s environmental reporting and for site-specific official reporting obligations. Local regulatory requirements determine whether the data is measured, calculated or estimated, though this data is preferably measured or calculated using established methods. If this is not technically feasible or possible due to local circumstances, we estimate the data on the basis of established extrapolation methods and empirical values. If, contrary to expectations, we become aware of significant deviations the following year, the value concerned is adjusted retroactively. However, this was not necessary for the previous year.
Data is collected on a site-specific basis using our groupwide reporting tool and is verified both at site level and by the Group Coordinator for the Environment. The data is reviewed externally by the relevant authorities.
The following table shows all the water metrics relevant to WACKER.
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|
2024 |
|
2023 |
|
Change |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
|
|
|
|
|
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Water withdrawal1 (million m3) |
|
229 |
|
236 |
|
-2.6 |
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Cooling water volume2 (million m3) |
|
212 |
|
217 |
|
-2.3 |
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Wastewater volume (million m3) |
|
12.6 |
|
12.2 |
|
3.3 |
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Water consumption (million m3)3 |
|
5.3 |
|
– |
|
|
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Of which water consumption in water risk zones including zones with high water stress (million m3) |
|
0.3 |
|
– |
|
|
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Total amount of water recycled and reused (million m3) |
|
559 |
|
– |
|
|
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Water intensity4 (total water consumption per net revenue) (thousand m3/€ million) |
|
0.9 |
|
– |
|
|
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|
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Over 90 percent of the water withdrawn is used as cooling water and then returned to the water circuit again. Only a small percentage is actually consumed, e.g. as part of our products. Production-related wastewater is either returned to legally admissible wastewater disposal or returned to the water circuit through our own wastewater-purification systems. These systems and the purified wastewater are monitored according to legal regulations applicable locally and are also monitored regularly by the authorities.
