I bought a Kill A Watt awhile back, though technically not a Kill A Watt but a Seasonic Power Angel, but since I bought it I haven’t done much with. I’ve mainly used it for quick measurements of my computer or monitor, nothing “scientific.” This past week I decided to figure out how much energy was used in my daily coffee-making ritual.
Seasonic Power Angel
I plugged in the Power Angel on a Saturday morning and alternated plugging in my coffee maker (a Technivorm-Moccamaster KBT) and coffee grinder (a Delonghi I can’t seem to find a link to now) to measure how much energy was used by both. I made 7 cups (that sounds like a lot but is our usual morning amount) and did the same everyday for the next 7 days.
All in all, the week’s worth of coffee making consumed 0.56 killowatt hours (kWh) of power. Given current prices of $0.088 per kWh from Marietta Power, this comes out to $0.04928 for the week or roughly $2.56 for the entire year.
Not having conducted an observation like this before, I’m surprised at the results, I was expecting higher numbers. A nickel a week to make coffee is well worth it.
