What are the changes in storage, measured in cubic meters (m3)?
CSRD
To calculate the changes in water storage measured in cubic meters (m³), you should compare the water storage levels at two different points in time. Here's how you can do it:
Identify the Time Period for Comparison:
Determine the two points in time for which you will compare the changes in water storage. For example, you might compare the water storage levels at the beginning and end of the year or at the start and end of a quarter.
Collect Data on Water Storage at Both Time Points:
Obtain the water storage data at the two time points. This could include the volume of water in storage tanks, reservoirs, or cisterns.
Make sure the data is in cubic meters (m³).
Calculate the Difference:
Subtract the initial storage amount from the final storage amount to calculate the change in water storage.
Formula:
Change in Water Storage (m³)=Water Storage at End Period (m³)−Water Storage at Start Period (m³)
Consider Factors that Could Affect Storage:
Changes could be due to:
Increased storage (e.g., additional water stored through rainwater harvesting or increased collection).
Decreased storage (e.g., water usage or loss from evaporation).
Ensure any relevant events (e.g., construction of new storage facilities, maintenance, or water usage) are accounted for when calculating the changes.
https://xbrl.efrag.org/e-esrs/esrs-set1-2023.html#6149
Also in
E3-4 - Water consumption
- What is the total water consumption in cubic meters (m3) for the company’s own operations?
- What is the total water consumption in cubic meters (m3) in areas at water risk, including areas of high-water stress?
- What is the total amount of water recycled and reused in cubic meters (m3) by the company?
- What is the total amount of water stored, measured in cubic meters (m3)?
- What contextual information is necessary to understand the total water consumption, recycling, reuse, and storage, including information on the water basins’ quality and quantity, the standards, methodologies, and assumptions used and whether the data is calculated, estimated, modelled, or sourced from direct measurements ?
- What is the share of the water data obtained from direct measurement, sampling and extrapolation, or best estimates?
- What is the company’s water intensity, defined as total water consumption in cubic meters (m3) per million EUR of net revenue?