You can find the Energy Cost Calculator at www.JustLocal.com.au/clients/energy-cost/.
The Energy Cost Calculator is a great too to help you save money on electricity. You can enter the wattage of an appliance, the number of hours a day you use the appliance, and using your current electricity supplier's rate, you can determine how much an appliance is costing you. This calculator has helped me reduce my energy usage to around half, which is quite a saving each year.
The second part of the calculator enables you to determine the payback period of replacing an older less energy efficient device with a new more efficient device. It isn't always obvious whether or not you'll save money by simply throwing out an older appliance and replacing it with a new appliance. Remember you have to buy the new appliance and sometimes that will cost much more than the energy used. In those cases it's best to wait until the appliance reaches its end-of-life and then replace it. A good example of how you can save money is an old TV and set-top box I was using. I worked out by buying a new LCD TV the TV would pay for itself over six years. It makes sense to then dispose of the old TV/set-top box and purchase the more efficient, and I have to say better spec'd TV.
An example of when it isn't worthwhile to replace an old appliance with a new one is when it is rarely used. For example we have a couple of lights which are rarely used, and then only for a few minutes at a time. For example in an storage area. The old light doesn't use much energy since it is rarely used. The new low energy light would never pay for itself in that situation.
The Energy Cost Calculator has enabled me to put a cost against each appliance and in doing so has enabled me to be better informed. Being better informed allows me to make better financial decisions with the use and purchase of appliances. I hope others find the calculator as useful as I have.
Call 0415 910 703 for IT support.