A second refrigerator or freezer adds a recurring electricity expense, even when the appliance itself was free. Estimate that expense by multiplying annual electricity use in kWh by your applicable electricity rate—not by assuming the dollar amount on an EnergyGuide label matches your bill. Garage conditions, door seals, and everyday use also affect the result, so an older appliance needs a model-specific estimate or measurement rather than an age-based guess.
Second Refrigerator and Freezer Electricity Cost Comparison
The table uses an assumed U.S. residential electricity rate of USD 0.20/kWh. This is an illustrative input, not a national average or a quoted local tariff. Annual costs are calculated from the listed energy inputs; monthly costs equal annual costs divided by 12.
| Appliance or option | Annual electricity use | Annual cost at USD 0.20/kWh | Average monthly cost | Basis and decision condition |
|---|---|---|---|---|
| Keep an older second refrigerator | 900 kWh/year | USD 180.00 | USD 15.00 | Hypothetical example only; substitute your appliance’s measured or estimated consumption |
| Use an ENERGY STAR certified top-freezer refrigerator | About 360 kWh/year | USD 72.00 | USD 6.00 | Reference figure from ENERGY STAR’s 2024 toolkit; not a specific 2026 model rating |
| Use an ENERGY STAR certified chest freezer | About 215 kWh/year | USD 43.00 | USD 3.58 | General reference from ENERGY STAR’s undated U.S. consumer guide; verify the selected model’s label |
| Use an ENERGY STAR certified upright freezer | About 395 kWh/year | USD 79.00 | USD 6.58 | General reference from ENERGY STAR’s undated U.S. consumer guide; verify size and defrost features |
| Remove an unnecessary second appliance | 0 kWh/year for the removed appliance | USD 0.00 | USD 0.00 | Assumes remaining appliances can handle the storage without additional equipment |
These references were checked on October 11, 2026. They are starting points for U.S. comparisons, not measured 2026 fleet averages or guarantees of garage performance. The chest and upright freezer figures also do not establish an equal-capacity comparison; compare actual models that meet the same storage requirement. A freezer is an alternative to a refrigerator only when you need frozen storage rather than chilled food or drinks. If you operate both a second refrigerator and a separate freezer, add their consumption instead of choosing one row.
Why Garage Conditions Can Increase Electricity Use
Heat, airflow, and door openings
A refrigerator or freezer must remove heat from its storage compartment and release it into the surrounding room. A hot location makes that heat rejection more difficult, while frequent door openings and leaking seals increase the heat entering the appliance. ENERGY STAR therefore recommends keeping refrigerators away from heat sources, maintaining airflow, checking seals, and minimizing door-open time. Its freezer guidance also warns that extreme surrounding temperatures can stress the compressor and reduce appliance life. This is why an old refrigerator moved from a kitchen to a garage may cost more than its previous operating history suggests. However, there is no universal “garage penalty” percentage to apply to every model. Use the manufacturer’s location requirements and check consumption under the conditions in which the appliance will actually operate. For older refrigerators with accessible condenser coils, follow the manufacturer’s instructions for safe cleaning. ENERGY STAR identifies coil cleanliness and ventilation as relevant efficiency measures; neither justifies opening electrical compartments or servicing a sealed refrigeration system yourself.
Cold garages can also cause problems
Garage suitability is not simply a question of surviving summer heat. GE states that its garage-ready top-freezer refrigerators are designed and tested for surrounding temperatures from 38°F to 110°F. That range applies to the specified GE product category—not to every refrigerator or standalone freezer. Check the exact model’s installation instructions before moving or buying an appliance. A garage-ready designation describes an operating capability; it does not establish the appliance’s annual kWh in your garage. Keep surrounding-air limits separate from internal storage temperatures. ENERGY STAR recommends refrigerator compartment temperatures of 35°F to 38°F and freezer temperatures of 0°F. Those are storage settings, not permissible garage temperatures.
Establish the Energy Input Before Calculating Cost
The EnergyGuide label gives a model-specific annual electricity estimate and helps compare similar appliances. Its printed annual dollar cost is based on typical use and a national average electricity price, so the FTC cautions that your actual cost depends on local prices and how you use the appliance. Recalculate from kWh rather than copying the printed dollar figure. For an older appliance without a usable label, the Department of Energy’s refrigerator and freezer energy-rating search tool allows searches by appliance type, brand, model, manufacturing year, and seal condition. ENERGY STAR’s Flip Your Fridge calculator provides another estimate based on appliance configuration, approximate age, and capacity. These are estimates, not measurements of your particular garage installation. Use the following workflow:
- Identify the appliance. Record the model number, refrigerator/freezer configuration, capacity, location, and available EnergyGuide information.
- Establish annual kWh. Use the model’s label or an official model-search estimate. For an operating appliance, Measure accumulated kWh with a suitable appliance-rated energy monitor, following both the monitor and appliance instructions.
- Record the observation conditions. Note the measurement duration, surrounding temperature, normal door openings, and whether use was representative. A short cool-weather observation cannot establish summer consumption.
- Find the applicable electricity rate. Use your utility bill and current tariff rather than a calculator’s default state or national rate.
- Calculate annual and monthly costs. Keep refrigerator and freezer inputs separate, then add them if both will remain in service. A refrigerator cycles rather than continuously drawing its maximum operating power. A watts-times-hours estimate therefore needs an appropriate operating-time or average-power assumption; multiplying maximum watts by all 8,760 hours in a year can misrepresent actual consumption.
Calculate Annual Electricity Cost by Hand
For a flat electricity rate:
[ C_{\text{annual}}=E_{\text{annual}}\times r ]
Where:
- (C_{\text{annual}}) = annual electricity cost in USD/year.
- (E_{\text{annual}}) = annual electricity use in kWh/year.
- (r) = applicable electricity rate in USD/kWh. For a representative measured period:
[ E_{\text{annual}} =
\frac{E_{\text{period}}}{d_{\text{period}}}\times365
]
Here, (E_{\text{period}}) is accumulated kWh and (d_{\text{period}}) is the number of measurement days. This projects the observed daily average across a 365-day year; it does not automatically account for seasonal garage temperatures.
Worked example: keeping an older second refrigerator
Assume a U.S. household is evaluating an older garage refrigerator with these hypothetical inputs:
| Input | Value | Assumption |
|---|---|---|
| Annual electricity use | 900 kWh/year | Illustrative consumption, not an official old-refrigerator benchmark |
| Electricity rate | USD 0.20/kWh | Assumed flat variable rate |
| Operating period | 365 days/year | Appliance remains in service year-round |
| Additional fixed account charges | USD 0 attributed to this decision | Existing charges do not change when the appliance is removed |
Substitute the values:
[C_{\text{annual}} =
900\ \text{kWh/year}\times0.20\ \text{USD/kWh}
180.00\ \text{USD/year}
]
[C_{\text{monthly average}} =
180.00\div12
15.00\ \text{USD/month}
]
The result is USD 180 per year, or USD 15 per month on average. It is an electricity-only estimate—not the total utility bill, a prediction of identical monthly consumption, or a guarantee of appliance performance. If the household also operates a freezer using the 215 kWh/year reference input:
[ E_{\text{combined}}=900+215=1{,}115\ \text{kWh/year} ]
[C_{\text{combined}} =
1{,}115\times0.20
223.00\ \text{USD/year}
]
This distinction matters: a second refrigerator and a separate freezer create two operating loads.
Recheck the result with the appliance-cost calculator
Use the appliance-cost calculator to cross-check the same energy-cost relationship. When using watts and hours, calculate energy as:
[ E=\frac{P_{\text{watts}}\times t_{\text{hours}}}{1{,}000} ]
If you need to express an annual-kWh estimate as an equivalent year-round average power:
[ P_{\text{average}} =
\frac{E_{\text{annual}}\times1{,}000}{8{,}760}
]
For the 900 kWh/year example:
[ P_{\text{average}} =
\frac{900\times1{,}000}{8{,}760}
\approx102.74\ \text{W}
]
Using approximately 102.74 W for 24 hours per day represents the annual energy average. It is not the compressor’s running wattage, startup demand, or an input for branch-circuit sizing. Keep the calculator’s assumed period consistent with the hand calculation.
Use the Rate That Changes When the Appliance Runs
For a simple flat-rate comparison, use the applicable per-kWh charges affected by additional consumption. Do not allocate an unchanged monthly customer charge to the appliance and then count it as savings from removal. Different tariffs require different treatment:
| Rate structure | Calculation approach | Important condition |
|---|---|---|
| Flat per-kWh rate | Annual kWh × applicable variable rate | Include applicable per-kWh delivery charges and adjustments |
| Time-of-use rate | Add kWh × rate for each billing period | A refrigerator cycles throughout the day; do not assign all consumption to off-peak hours |
| Tiered rate | Apply the rate for the consumption affected by keeping or removing the appliance | A whole-bill average may differ from the cost of the additional kWh |
| Commercial tariff with demand charges | Evaluate energy charges and any change in billed peak demand separately | Annual kWh alone cannot establish demand-charge savings |
EIA’s electricity tables provide U.S. and state-level context, but they are average revenue-per-kWh statistics, not your utility’s tariff. National and state averages should remain reference starting points rather than substitutes for local billing terms.
A common cost-estimation mistake is accepting a default rate without checking its date or basis. ENERGY STAR’s Flip Your Fridge tool offers state and national defaults, while the FTC explains that EnergyGuide dollar estimates use a national average. Enter your current applicable utility rate before treating either result as a household cost estimate.
Compare Keeping, Replacing, and Removing the Appliance
Keeping an existing appliance avoids a new purchase, but it retains its electricity expense. Replacing it may lower consumption while adding an upfront cost. Removing it avoids that appliance’s consumption only if the remaining storage arrangement meets your needs. For a replacement comparison:
[ S_{\text{annual}} =
(E_{\text{old}}-E_{\text{replacement}})\times r
]
Using the hypothetical older refrigerator and the 2024 top-freezer reference:
[S_{\text{annual}} =
(900-360)\times0.20
108.00\ \text{USD/year}
]
This is an illustrative USD 108 annual electricity saving, conditional on those energy inputs. The replacement’s actual EnergyGuide rating—and its suitability for the garage—should replace the generic reference before making a purchase decision. If the net installed replacement cost were an assumed USD 600:
[ \text{Simple payback} =
\frac{600}{108}
\approx5.6\ \text{years}
]
The USD 600 figure is hypothetical, not a market-price estimate. For your own calculation, include the quoted purchase price, taxes, delivery, installation, and removal or recycling charges, minus confirmed applicable incentives. Simple payback excludes financing, future rate changes, repair differences, and the time value of money. If frozen storage is the actual requirement, compare appropriately sized chest and upright models. ENERGY STAR notes that chest freezers usually retain cold air better during opening, while upright freezers offer shelves and easier organization. Defrost type also affects energy use and maintenance requirements.
Second-Appliance Decision Checklist
Complete these checks before relying on a cost estimate or ordering a replacement:
- Confirm whether you need chilled storage, frozen storage, or both.
- Record each appliance’s model number and annual-kWh input.
- Distinguish label estimates, official historical estimates, and measured consumption.
- Check the model’s permitted surrounding-temperature range against the garage’s conditions.
- Inspect door seals and verify manufacturer-required ventilation clearances.
- Replace generic electricity rates with your current utility billing terms.
- Account for time-of-use, tiered, or commercial demand charges when applicable.
- Include actual acquisition and removal costs in a replacement comparison.
- Arrange proper recycling if the old appliance will leave service; ENERGY STAR recommends recycling replaced refrigerators and freezers. The cost calculation answers an operating-expense question. It does not establish garage suitability, authorize electrical modifications, or replace manufacturer instructions, NEC requirements, local AHJ requirements, or on-site professional judgment.