Appliance energy use
Estimate electricity consumed by one appliance over a period. Use realistic average power when the appliance cycles on and off.
Understand the numbers · Make life easier
Appliance electricity cost
Estimate one appliance's energy cost using your own power and tariff assumptions. Enter average operating power rather than assuming rated maximum power is used continuously.
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Estimated electricity cost
360TWD
This estimates one appliance's cost. Confirm your electricity price; it does not reproduce a whole tiered bill.
Estimated electricity use90 kWh
Price per kWh4 TWD/kWh
Electricity use multiplied by the single price per kWh you entered. This is not a whole-household Taipower tiered, summer or time-of-use bill. For inverter appliances, use the actual average power.
Method and scope
Energy in kWh equals watts times hours per day times days, divided by 1,000. Multiply that energy by the price you enter per kWh.
The answer is an appliance estimate for the specified period. One electricity billing unit here means one kWh.
TWD 4 is an editable example, not a published Taipower tariff. Taiwan household tiered, summer and time-of-use billing requires the applicable official tariff calculation.
What this helps you do
Estimate one appliance's energy cost using your own power and tariff assumptions. Enter average operating power rather than assuming rated maximum power is used continuously.
What to enter
Start with average power (watts), then fill the other relevant fields in the units shown. The field hints explain the required format and examples.
How the calculation works
Energy in kWh equals watts times hours per day times days, divided by 1,000. Multiply that energy by the price you enter per kWh.
Worked example
A 500 W appliance used four hours a day for 30 days consumes 60 kWh. At TWD 4 per kWh, its estimated cost is TWD 240.
Understanding the answer
The answer is an appliance estimate for the specified period. One electricity billing unit here means one kWh.
Scope and limitations
TWD 4 is an editable example, not a published Taipower tariff. Taiwan household tiered, summer and time-of-use billing requires the applicable official tariff calculation.