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Appliance replacement calculator

Check whether energy savings can recover the cost of replacing an appliance within your expected use period. Enter annual consumption for the current and new device, electricity price and net replacement cost. Annual maintenance costs can also differ. The result separates annual savings, simple payback time and net savings at the end.

Illustrative inputs, not current market prices. Prices are manual. Language does not select a tariff or tax regime.

Calculation saved only in this tab. Shared links contain the entered figures.

Result breakdown

Understand before deciding

How this calculation works

Annual savings equal the consumption difference times the kWh price, plus the difference in other annual costs. Simple payback is replacement cost divided by positive annual savings. Moving from 500 to 250 kWh/year at 0.25 saves 62.50 a year in energy. A replacement cost of 500 gives an eight-year simple payback if other costs are equal.

What is included and excluded

Financing, inflation, future failures, resale value and changes in usage are excluded. Label consumption comes from test conditions and may differ from actual use. Include installation and disposal in net cost when applicable. Payback beyond expected useful life does not establish that replacement is worthwhile. Without positive annual savings, no finite savings-based payback is shown.

Practical checks before deciding

Distinguish replacing a working appliance from choosing between two models when buying is necessary. In the first case, use the full replacement cost. In the second, use only the efficient model’s extra price and compare both new models’ consumption. Do not pair that price premium with the old appliance’s consumption: those are different decisions. Save the scenarios with their inputs before choosing.

Read about formulas, conventions and limitations