Energy Management Through Ditching Coke

First and foremost I would like to say that best thing to do is get rid of pop machines in general and replace them with water fountains.  That being said, the pop supplier on the campus and research park (http://www.innovationplace.com) where Integrated Design Inc.’s (IDI) Saskatoon office is located was recently changed from Coke to Pepsi.  The new machines supposedly use less energy; luckily, I like to log and measure random things and was able to make the comparison. Using a Kill-A-Watt meter the following data was gathered. 

Coke Machine (600 mL bottles) - over a 73 hour period consumed 33.15 kWh
New Pepsi Machine (600 mL bottles) - over a 168 hour period consumed 49.37 kWh

From these measurements it can determined the following:

By simply changing the supplier of the pop, to a company that uses a little more energy efficient pop machines it is likely that each machine will save 1 tonne of CO2 from being released into the environment.  Taking this to the next step, around 2 tonnes of CO2 could be saved by ditching your new Pepsi Machine all together, and 3 tonnes by getting rid of your Coke machine.  

* $0.11 / kWh was used to reflect the costs of a typical Saskatchewan consumer.    
** According to Saskpower's reported Greenhouse Gas Emissions of 0.77 kg CO2e per kWh

Notes on the measurements:  This is not a perfect study: there are more than likely a number of unknown variables that could affect the data, such as when the machine was last filled with warm pop.