Saturday, November 07, 2009
Energy costs calculator
Appliance Energy Consumption Calculator
See our Typical Appliance Energy Use and Costs fact sheet.
To the Home Appliance Calculator
Quick instructions:
Click on the link above to go to the calculator. Select the number of appliances. Enter the best wattages and hours of operation for the appliances. Go to the bottom of the list and hit "calculate."
If you've ever wondered how much that new refrigerator, freezer or other appliance is affecting your electricity bill; you'll like our Home Appliance Calculator. With our Appliance Calculator, you can figure the monthly energy use of the appliances in your home.
After you are familiar with the basic instructions below, click the link here to go to the appliance calculator.
Appliances are grouped. When you go to the calculator, you'll notice the appliances listed in the following groups - heating, water heating, lighting, appliances, kitchen, and tools. This makes it easier to find appliances and calculate the cost of appliances by groupings.
Select appliances. To select appliances for a calculation, simply click on the pick list in the quantity column - for example, 1 electric furnace.
Watts. Default wattages for given appliances are listed in the next column. Of course, appliance wattages vary, and the results are only as good as the inputs you select. That would be the GIGO aphorism - garbage in, garbage out. (Pardon the tech talk.) So, if you have a better wattage, input that number in the watts box. Many appliances do have a wattage listing on the appliance.
Hours of operation per month. In the last column, again, defaults are entered, but the final calculation is only as accurate as your input here. For example, the number of hours per month your furnace operates, is typically not known. You can simply estimate, or you may wish to track the operation more closely on an average day during the heating season to figure a more accurate estimate. Remember, this entry is for the number of hours this appliance is used each month.
Calculate. Finally, click on the calculate button at the bottom of the list to see the monthly total, in dollars, for the appliances you have selected.
The calculation is fast. Experiment. Try a number of different calculations to see how varying use can affect your utility bill. Write down and compare results for the appliance groupings.
Note which appliances have large impacts on your bill and use them wisely to save money.
Cross check your calculations with Tacoma Power's UtiliGraph. See charts and graphs of your actual utilities use (City of Tacoma customers only). How do your calculations with the appliance calculator compare to your actual bill presented by UtiliGraph?
Whenever you replace or buy new appliances, make sure you buy appliances that are energy-efficient.
See our Residential Services section for more ideas on home energy efficiency and strategies for lower energy bills.
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Tuesday, March 24, 2009
PCRA
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