Will Replacing Your Old Refrigerator Actually Save Money?

Find yearly electricity use on the EnergyGuide label

The yellow EnergyGuide label helps you compare energy use among similar appliances. For a refrigerator, look for estimated yearly electricity use in kWh. The printed yearly dollar estimate uses a reference electricity price; your household may pay a different rate. Multiply the kWh figure by your own price for a personalized energy-cost estimate.

Keep the comparison useful: look at refrigerators with suitable capacity and features for your household. Standardized label figures support comparisons, but actual use can differ with operating conditions. They are not a promise about next year’s utility bill.

Reference: FTC: How to use the EnergyGuide label

Why rated watts times 24 hours can be misleading

A refrigerator stays plugged in continuously, but its compressor does not necessarily run at a fixed maximum power all day. Fans, defrost operation, and controls also affect the energy total. A momentary or maximum wattage is therefore a weak basis for a yearly estimate.

For an existing refrigerator, use a suitable appliance energy meter within its ratings and manufacturer instructions to measure kWh over a representative period. As a worked example, 14 kWh recorded over seven complete days averages 2 kWh per day. Multiplying by 365 gives 730 kWh per year. That annualization assumes the week represents the year; a hot week, a recent installation, or unusual use can distort it.

The same refrigerator difference is worth more at a higher rate

These hypothetical refrigerators use 800 and 450 kWh per year. Neither value is presented as a market average or a claim about a specific model. Apply the same rate to both, then subtract.

Separate replacing a working fridge from choosing between new ones

If the old refrigerator still works and replacing it costs a hypothetical $900 net of any confirmed rebate or resale value, a $70 annual energy saving produces a simple payback of about 12.9 years. That calculation ignores financing, future rate changes, repairs, service life, and the time value of money. It is a screening tool, not a guarantee that replacement is a good purchase.

If you need a refrigerator anyway, the relevant calculation changes. Suppose one suitable new model costs $150 more and uses 100 fewer kWh per year. At 20¢/kWh it saves $20 annually, so the extra purchase cost has a simple energy payback of 7.5 years. Compare the price difference, not the full purchase price, in that situation.

Reliability, food-storage needs, warranty coverage, and repair costs can matter as much as energy. Use actual quotes and model labels before making the decision. Our numerical examples are not appliance recommendations.

Keeping the old fridge changes the result

If you move the old unit into the garage and continue using it, you have not eliminated its consumption. Under the example assumptions, the old and new refrigerators together use 1,250 kWh annually, costing $250 at 20¢/kWh. That is $90 more than running only the old unit. Actual garage temperatures may make the old unit’s use different from its previous indoor use.

Before buying, write down three numbers: the old unit’s measured or reasonably estimated annual kWh, the new model’s label kWh, and your applicable rate. Then decide whether the old unit will actually be retired. This turns a vague efficiency claim into a household-specific comparison.