"Energy saving initiatives in the home must include measures to reduce hot water use if we are to meet our carbon dioxide emission reduction targets Quantifying the energy and carbon effects of saving water is a research project, run jointly with the Environment Agency, to help us understand the carbon emissions from water use at home and the potential for savings. We have produced a summary version of the report in addition to the full technical report.
Domestic water use in the UK is around 150 litres per person per day. Taking water from the environment, treating it, distributing it to households, using it in the home, collecting it when it has become sewage and then treating it before discharging it back into the environment are all processes requiring energy, and therefore result in CO2 emissions. In order to best focus policy on how to minimise CO2 emissions from this train of events, we need to understand which parts of this process are the most energy intensive" "The report confirms earlier work by the Environment Agency that established 6 per cent of the UK's annual greenhouse gas emissions relate to water use, including abstraction and wastewater treatment, and nearly 90 per cent of those emissions result from water use in the home"
You quote 150 liters/person/day, that about 55 cubic meters of water a year. What does a person do to have to use so much water. This is a scandel.
jamesingram
4 Sep 2009, 9:35 PM
I believe a bath is around 100 litres , each flush of and old style toilet is 9 litres one bath and five trips to " drop the kids off at the pool" should do it. though I must admit five trips a day seems a bit regular, what are these 'average people' eating ?
fridihem
5 Sep 2009, 10:02 AM
Then my advice is to throw out the bath, and install a shower, and of course a dual toilet, 2 or 4 liters
ingleside
29 Sep 2009, 9:41 PM
We used to use approx 100 cu metres per year between two of us. Our estimates are that 1/3 of this is used to flush the toilet. Now that we share a bath in the morning, and put the bath water into quart milk bottles to flush the toilet (typically 36 quarts per bath) that is reduced. Since we have also installed rainwater harvesting at about the same time, we're down to about 30 cu metres purchased. Septic tank installed, so our amount of sewerage is greatly reduced.
mark99
16 Oct 2009, 4:10 PM
well i don't feel the stats are correct but if these are true then some major actions should be taken. So much of enegy is wasted for heating water, and this can be easily controlled by little knowledge.
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