Statistics collected by the Energy Saving Trust show that showers and baths are responsible for the highest percentage of water usage in an average household. With an average shower length between 6-8 minutes and an average flow rate of 12 litres per minute, reducing shower length by 2-3 minutes daily could save between 5,200 to 9,360 litres of water per person per year. By reducing hot water consumption, this would also reduce energy use and CO2 emissions.
Aguardio Shower Sensors were tested in seven tourism accommodations in Europe and North America. Over 25,488 showers were measured to test the effectiveness of real-time feedback on shower duration. Guests were given persuasive messages reflecting pro-environmental values to encourage shorter showers. The result was that the average duration of showers was reduced by 13.56% on average, with the most effective messaging tested resulting in a 21.27% reduction across all the accommodations. Per room per year, this intervention would save 4.44 M3 of water, 0.19 MWH of energy, and 33kg of CO2.
Facts and Figures
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