To estimate the yearly operating costs of an electric oven, multiply the kWh value on the label by the number of times you are likely to use it in a single week. Then divide by 52 weeks. Finally, multiply by your municipality’s power cost. Examine your power statement to determine the kWh cost of electricity in your municipality.
For example, if the label shows that the electric oven would consume 2 kW per hour and a kWh of energy costs R2 (with VAT) where you reside, the cost of using the electric oven for 4 hours per week will be R832 per year. Appliance Energy Calculation Tools were developed to help consumers make better judgments by assessing the long-term cost of running an appliance.
Per Hour Energy Consumption x Number of hours worked per week x Year’s number of weeks x Electricity Cost in Your Municipality
= The appliance’s annual operating cost
2 kWh multiplied by 4 hours per week multiplied by 52 weeks per year multiplied by R2 per kWh equals R832.
How much energy and money can a microwave save you?
A microwave consumes far less energy than a gas or electric oven. Using your microwave for one hour per day would cost around half the amount of energy as a natural gas oven and 60% less than an electric oven.
