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AA First claims that its SIP Ozone Self-Sanitisation system for water coolers can reduce sanitizing visits by half, saving some £100 in electricity costs and reducing carbon output by 490kg.
SIP automatically sanitises a cooler at a given time 365 times per year, day or night. Both the EPDWA and the BWCA have accepted that SIP installed coolers only require one deep sanitisation a year for pou systems and two for bottled water coolers. AA First says that this represents a reduction of 50 per cent compared with guidlines for non-SIP coolers.
SIP permits a cooler to be put into ‘sleep mode', without affecting the overnight sanitising cycle. Tests have indicated that ‘sleep mode' between 18.00 and 06.00 can save the customer 912 kwh per year for an hot and cold cooler, and 139 kwh for ambient and cool units. At 12p per kwh, this amounts to a saving of £109 and £16.65 respectively.
Using a Defra calculation that each kwh of electricity is responsible for 530 gms of carbon emission, the annual reduction as a result of being able to use ‘sleep mode' amounts to 490kg for a hot and cold water cooler and 74.5kg for an ambient and cold machine.
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