'The two Cool-phase units installed in the Bryant building consumed 197.6 KWh of electricity between 25th January and 2nd September 2013.
Assuming a standard electricity tariff of 0.11£/KWh, that amounts to total energy costs of £21.74, or 70p a week'.
For more information go to Case Studies - Anglia Ruskin University and download PDF http://www.cool-phase.net