Electricity vs Water
Posted by Max Dunn Fri, 06 Nov 2009 02:12:50 GMT | 2 comments
What is better – to save water or to save electricity? This is a tradeoff that businesses and industry concerned about sustainability often need to make, and it is not an easy one.
However, an article in the November 6th, 2009 edition of The Economist called Current thinking: Cheaper desalination provides this tidbit: “Even the best reverse-osmosis plants require 3.7 kWh of energy to produce 1,000 litres of drinking water.”
Converting to gallons, this means that 70 gallons of water can be produced from salt water with 1 kWh of electricity. So there we have it – a way to compare water savings to electricity savings.