The Kill A Watt Electricity Usage Monitor Model #P4400 is one of my favorite tools for saving money. If you have ever been curious how much you are paying to run your refrigerator, your washer, alarm clock, cell phone, computer or just anything that runs on 110 volts, this is the perfect tool to use.
It is very simple to use, just plug Kill A Watt into the wall, and then plug your appliance into the Kill A Watt. That’s all you have to do. Now wait for an hour or two, or maybe wait an entire day. There are several screens which give you information but the most important one is going to be the pink one at the right hand side which will tell you how many kilowatt hours you are using.
Your electricity company calculates your usage in kilowatt hours so you will need to find out how much your company is charging you for each kilowatt hour. In addition, you might be on a savings plan where you pay different amounts for your electricity depending on the time of the day.
We pay for our electricity in two different amounts. One during the on-peak hours which is 9am to 9pm. During the on-peak hours we pay $0.1387, so almost $0.14 cents per kilowatt hour.
Then we have off-peak hours from 9pm to 9am, and weekends. It costs significantly less during the off-peak hours. During off-peak hours we pay $0.0449 per kilowatt hour, so about four and a half cents per kilowatt hour.
Let’s say you want to figure out how much electricity your refrigerator is using.
Here is a tip – plug the Kill A Watt into a plug where you can easily see it. For example, if you plug it into the wall near the floor under that shelf on your desk it is going to be difficult to read the screens on the Kill A Watt! If you are on a savings rate plan as we are, you will want to read the Kill A Watt when the rate changes.
Okay, so let’s say you are on the same savings plan as we are on and your electricity costs $0.10 per kilowatt hour from 9am to 9pm. You will need to read the Kill A Watt at 9pm when the rate goes to the higher amount. Let’s say your refrigerator used 5 kilowatt hours and was plugged in from noon until 9pm. For 9 hours use, it cost you $0.50. Leave the Kill A Watt plugged in and read again at 9am. Let’s say for those twelve hours you used 7 kilowatt hours, but during the night you only pay $0.04 per kilowatt hour. So your cost of operation during the night for twelve hours is $0.28.
It is kind of fun to test various equipment and see how much it costs to run. I did an experiment on our refrigerators and discovered that our old refrigerator manufactured in 1979 was costing as much as $25 each month to run, while a newer model from 2004 was costing only $5.40! That is a significant cost over a year – about $240 each year.
Check out the Kill A Watt Electricity Usage Monitor Model #P4400 from Amazon and start figuring out those big energy hogs in your home today.