Water calculation tool

If you are a hotel or other type of accommodation, you can calculate your carbon footprint using the Hotel Water Measurement Initiative (HWMI) tool developed by the World Sustainable Hospitality Alliance.

 

Access the HCMI digital version, free of charge

BeCause, streamlining data platform, has digitized the HCMI methodology. Register for free on BeCause, and calculate your carbon footprint with this user-friendly version.

 

Gather information

In order for your accommodation to calculate the water footprint, you will need to have the following information ready: 

  • Total area of the accommodation (m2)

  • Total area of guest rooms and corridors (m2)

  • Total area of meeting facility space (m2)

  • Total area of private or outsourced space inside the accommodation (m2) or their sub-metered consumption (litres)

  • Total number of guest rooms

  • Total number of occupied rooms for the reporting year

  • Total water consumption from different water meters for the reporting year (litres)

  • If laundry is outsourced, the laundry tonnage for the reporting year (metric tonnes)

  • If irrigation is used, the weeks (w) and area of irrigation (m2) or amount of unmetered water used (litres)

  • Total number toilets in your accommodation using unmetered water


Track your impact

The calculation will give you the following data: 

  • The total water usage for the reporting period (litres)

  • The water usage per occupied room on a daily basis (litres)

  • The water usage per area of meeting space on an hourly basis (litres).

 

Acknowledgements: 

The HWMI tool is developed by the Sustainable Hospitality Alliance.
https://sustainablehospitalityalliance.org/  

The digital version of the HWMI tool is developed by BeCause.
because.eco.