A big part of reducing your home's energy footprint, is simply understanding where exactly the energy gets used. It could be argued that I'm somewhat obsessed with measuring things, and I'm OK with that, so long as there is some meaningful purpose to it. As previously posted here, I take a critical look at common things many folks have in their homes, and find out what it costing them. Today's post is about the good old fashioned bottled water cooler. The model I tested was a Oasis Model BPO1SHS Bottle Cooler. This model has an Energy Star Rating, has both hot and cold spigots, and a more contemporary appearance. It is what most water delivery companies offer as an 'upgrade' model, over the typical single spigot, non-cooled models.
I measured the energy usage over a twenty-five day period in order to get a good average usage reading. To measure, I used a Kill A Watt Model P4400 cumulative energy recording meter. My blended cost of utility power where I live is $0.10187 per kWh (before taxes). The test took place in a home with a family of four. Here are my results:
- When running, the cooler drew about 81 watts of energy, which is roughly 25% more energy than the most commonly used incandescent 60 watt light bulb
- Over the 25 day period, the cooler used about 39.56 kWh, or about 1.54 kWh per day
- Annualized, my cooler will cost about $57.21, which is about $4.77 per month
Of course, there are dozens of coolers available, varied usage of energy depending upon a families consumption of the bottled water, and a variance in electricity cost based on where you live. However, if my results are any indication of what it costs for you to have the chilled/heated water option to the other costs you incur to have bottled water delivered to your home, add about five bucks to that.