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Average apartment water consumption

If average consumption is low, the potential for savings is lower

WCA1.gif
Fig. 1 Average apartment water consumption.


The figure above is based on the following formula (Gram-Hanssen 2005):

Annual water consumption = 33 cubic meters + (no. of people * 21 cubic meters/person)

Example: no. of people = 2

Annual water consumption (cbm) = 33 + (2 * 21) 
                        = 33 + 42 
                        = 75


At times it may be simpler to use the formula rather than reading the graphs.

Note that the estimates are rough due to the presence of significant uncertainty.


Created by tanja.groth. Last Modification: Tuesday 13 July 2010 16:48:08 CEST by tanja.groth.