Sometimes—but an ENERGY STAR label alone does not guarantee that a refrigerator will pay for itself. The answer depends on how much electricity your current unit uses, the new model’s annual kWh, your electricity rate, and the new refrigerator’s extra upfront cost. Replacing a very old or unnecessary second refrigerator is more likely to cut bills than swapping a reasonably efficient main unit.
What the published savings figures do—and don’t—show
ENERGY STAR says certified refrigerators are about 9% more energy efficient than models that meet the federal minimum standard. That is a comparison between product groups, not a promise that your household’s bill will fall by a particular amount. A certified model’s actual savings depend on what it replaces and how it is used.
ENERGY STAR estimates about $150 in energy-cost savings over the product lifetime when an old refrigerator is properly recycled and replaced with a new ENERGY STAR certified model. The program cautions that “Actual savings may vary based on use, upkeep, and other factors.” Treat the estimate as a general program figure, not a guaranteed return for your home. See ENERGY STAR’s refrigerator guidance and its Flip Your Fridge Calculator.
A separate federal example illustrates why the price premium matters. In guidance updated in December 2023, the U.S. Department of Energy’s Federal Energy Management Program (FEMP) estimated $45 in lifetime energy-cost savings for an ENERGY STAR model compared with a less efficient model. Its calculation assumes an 18.1-cubic-foot automatic-defrost top-freezer refrigerator, electricity at $0.099 per kWh—the stated average at federal facilities—a 16.2-year product life, and a 3% discount rate. Under those assumptions, a purchase premium of $45 or less in 2022 dollars is cost-effective. This is a specific federal purchasing example, not a homeowner payback estimate for every model or electricity rate. The assumptions and method are in DOE FEMP’s refrigerator purchasing guidance.
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How to estimate whether your purchase will pay back
Compare models with similar capacity and refrigerator/freezer configuration. Then use each model’s annual energy use in kWh and the prices you would actually pay. The basic estimate is:
Estimated annual savings = (old refrigerator’s annual kWh − new refrigerator’s annual kWh) × your electricity price per kWh
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Simple payback time = extra purchase cost ÷ estimated annual savings
For example, if a replacement is estimated to use 200 fewer kWh per year and your rate is $0.20 per kWh, the estimated bill reduction is $40 per year. If the efficient model costs $120 more than the alternative, simple payback is about three years. This is an illustration, not a prediction: actual consumption and rates can vary, and simple payback does not account for the time value of money, maintenance, or changes in how long you keep the appliance.
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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11- Find the annual kWh for both options. Use the EnergyGuide information or manufacturer/product specifications, and compare similar sizes and layouts. For an old unit without a reliable label, a plug-in electricity meter can help measure consumption over time if it is suitable for the appliance and outlet.
- Use your actual electricity rate. Check a recent bill for the per-kWh charge. If your bill has time-of-use pricing or several per-kWh components, use a rate that reasonably reflects what you pay for added consumption.
- Compare the price premium. Subtract the price of the less efficient comparable option from the efficient model’s price. Add delivery or other costs only when they differ between options.
- Account for verified incentives separately. Subtract a rebate only if you have confirmed that it applies to the model, location, buyer, and purchase date. No particular rebate is established here.
- Compare payback with your expected use period. If the estimated payback is longer than you expect to keep the refrigerator, the energy savings alone may not recover the extra cost during your ownership.
ENERGY STAR’s calculator can help structure a comparison and asks whether you are replacing a main refrigerator or removing an extra one. Use its result as an estimate, not a guarantee.
Replacing the main refrigerator is different from removing a spare
If you are replacing your main refrigerator
The relevant saving is the difference between the old refrigerator’s operating cost and the new one’s, set against the new purchase cost. Replacing a very old, high-consumption unit can offer a larger reduction than replacing a newer model, but the payback still depends on the actual kWh difference and price premium. If the current refrigerator works and the efficient replacement costs substantially more, calculate the savings before deciding.
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If you are deciding whether to keep an extra refrigerator
Removing an unneeded second refrigerator avoids its ongoing electricity use without requiring a replacement purchase. If you still need the extra capacity, compare the cost of keeping the old unit with replacing it; that is a different calculation from replacing your main appliance. ENERGY STAR’s calculator distinguishes these situations because the costs and potential savings differ.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Which refrigerator features matter for energy use?
Capacity and configuration matter when comparing annual kWh. ENERGY STAR’s certified-product guidance says freezer-on-top models tend to use the least energy among common refrigerator layouts. That does not mean every top-freezer model beats every other refrigerator; compare the annual kWh figures for models that meet your size and layout needs rather than choosing by label or configuration alone. ENERGY STAR’s product guidance is at energystar.gov/products/refrigerators. A certified-product record also carries a general statement that an old refrigerator uses about 35% more energy on average than an ENERGY STAR model, but that average is not a measurement of your specific appliance: ENERGY STAR certified-product record.
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Ways to improve the value of an efficient refrigerator
- Choose the capacity you need. Compare similarly sized models so the kWh and price differences reflect efficiency rather than a larger appliance.
- Check upkeep and use. ENERGY STAR notes that savings vary with use and upkeep; operating conditions can affect real-world costs.
- Recycle the old refrigerator properly. ENERGY STAR’s lifetime estimate is based on properly recycling the old unit and replacing it with a certified model. Avoid keeping the old refrigerator running as a spare if it is no longer needed.
- Verify local incentives before buying. Rebate programs may be location- and date-specific, so confirm eligibility with the utility or program administrator rather than assuming a discount applies.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
