Appliance Services › Running Costs
Appliance Running Cost Calculator
See exactly how much any appliance costs to run per day, week, month and year at NZ electricity rates. Includes CO₂ emissions estimate based on the NZ grid average.
Appliance Running Cost Calculator
NZ average ~$0.30–0.35/kWh
Select appliance and enter usage hours to calculate running cost.
Wattage from Energy Star / manufacturer label. Actual consumption varies with load, temperature and age. NZ grid emissions factor ~98 g CO₂e/kWh (2024).
Frequently Asked Questions
Where do I find the wattage of my appliance?
Check the Energy Star label, the compliance plate on the back or base of the appliance, or the owner's manual. The wattage is often printed as "Input: XXX W" or "Rated Power: XXX W". Online product databases also list rated power for most models.
Why is actual consumption different from rated wattage?
Rated wattage is the maximum or peak draw. Most appliances cycle on and off (fridges, heat pumps) or vary with load (washing machines, computers). Actual energy use over time is typically 30–70% of peak wattage for cycling appliances.
How do I reduce appliance running costs?
Replace old appliances with 5-star energy-rated models, shift high-use appliances to off-peak tariff hours (overnight), use cold-wash cycles for laundry, and avoid standby power by switching off at the wall. A heat pump water heater can cut hot water costs by 60–70% vs a resistive cylinder.
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