How much can I save per year by choosing an ENERGY STAR certified refrigerator?

Savings vary by model and your local electricity rate, but on average an ENERGY STAR certified refrigerator uses about 10 to 15 percent less energy than a non-certified model. For a typical 20-cubic-foot unit, that is roughly $30 to $50 per year in electricity savings compared to a standard model. Over a 15-year lifespan, the savings can offset the higher purchase price.

Is a top-freezer refrigerator always more energy-efficient than a bottom-freezer?

Generally, yes. Top-freezer models have a smaller freezer compartment and a more compact compressor layout, which reduces cold air loss when opening the door. However, the difference is not huge – bottom-freezers are still efficient, just slightly less so. If you prefer a bottom-freezer, look for one with a drawer-style freezer rather than a swing door, as that reduces the amount of cold air that spills out.

Does an ice maker really increase electricity use significantly?

Yes, an automatic ice maker can increase energy consumption by 5 to 10 percent because it adds a heating element to release the ice cubes and a motor to cycle the ice tray. A through-the-door water dispenser also adds to the energy draw. If you rarely use ice, choose a model with a simple ice tray or one that allows you to turn the ice maker off.

How important is the temperature setting for energy efficiency?

Temperature setting is one of the easiest things to get right. The FDA recommends 40°F for the fridge and 0°F for the freezer. For every degree below 40°F, you add about 5 percent to the refrigerator's energy use. Use a refrigerator thermometer to verify the actual temperature, because built-in dials can be inaccurate. Setting it correctly can save you 10 to 15 percent on your refrigeration costs annually.

Energy Efficient Refrigerator Buying Guide: A Checklist for Lower Bills

Start with the EnergyGuide and ENERGY STAR Labels

The yellow EnergyGuide label is your first point of comparison. It shows the estimated annual electricity use in kilowatt-hours (kWh) and the average yearly operating cost at national energy prices. Because refrigerators run 24/7, even a 100 kWh difference per year can add up to roughly $15 to $20 on your bill, depending on local rates. Compare this number across models of the same style and size, not just the sticker price.

The blue ENERGY STAR certification goes beyond the federal minimum standard. ENERGY STAR certified refrigerators are typically about 10 to 15 percent more efficient than non-certified models. For a typical household, that can translate to savings of $30 to $100 over the lifetime of the appliance. When you see the mark, it means the unit uses less energy than the baseline set by the U.S. Environmental Protection Agency, so it is a reliable shortlist filter before you look at other features.

Match the Refrigerator Style to Your Usage Habits

Top-freezer refrigerators are usually the most energy-efficient style you can buy. They use a single compressor and have a smaller surface area for the freezer door, which reduces cold air loss. If your priority is lowering the electric bill, a top-freezer model with a manual defrost option (if still available) will use less energy than a similar-sized side-by-side or French-door unit.

Bottom-freezer models are slightly less efficient than top-freezers but more efficient than side-by-side models. Side-by-side units lose more cold air when you open the doors because the entire height of the unit is split, and they often include an ice maker and water dispenser that add to energy draw. If you prefer a French-door style, choose one without an in-door ice maker, or select a model with a switch to turn the ice maker off when you do not need it.

Consider whether you really need a through-the-door ice and water dispenser. The dispenser increases energy use by roughly 5 to 10 percent because it requires a larger freezer compartment and additional components. A water filter in the fridge is a more efficient alternative if you want chilled water without the extra energy cost.

Check the Compressor Type and Cooling Technology

Look for a variable-speed or inverter compressor. Unlike a standard compressor that runs at full speed and then shuts off, an inverter compressor adjusts its speed to match the cooling demand. This reduces the number of on-off cycles, which saves energy and reduces wear on the motor. Many modern refrigerators from major brands use this technology, but it is not universal, so check the specifications or ask the retailer directly.

Some high-end models use a dual-evaporator or dual-cooling system. This keeps the fridge and freezer at separate humidity levels, preventing odor transfer and reducing the need for the freezer fan to run constantly. While this adds to the upfront cost, it can lower energy use because the freezer does not have to work as hard to keep the fridge cold. However, for many households, a single-evaporator system with good door seals is efficient enough.

Ask about the type of refrigerant. Newer refrigerators use R-600a (isobutane) or R-290 (propane) in some regions, which have lower global warming potential than older R-134a. While you rarely choose a fridge solely for the refrigerant, it matters for the eco-friendliness of the unit. Check the product manual or the manufacturer's website for the refrigerant type if it is not listed on the EnergyGuide label.

Measure the Door Seals, Insulation, and Ventilation Clearance

Before you buy, inspect the door gaskets on the showroom model. A tight seal is the single most important factor in preventing cold air from escaping. Run your hand along the gasket to feel for any gaps, and close the door on a piece of paper – you should feel resistance when you pull it out. If the gasket is loose or has a visible gap, the compressor will cycle more often, increasing your electricity use.

Check the insulation thickness in the spec sheet. Modern refrigerators use high-density polyurethane foam, and a thicker layer (usually 2.5 to 3 inches in the walls) reduces heat transfer. Some budget models use less insulation, which makes the compressor work harder. You can compare the total volume versus the claimed storage capacity – a unit with more interior space for the same external footprint often has better insulation.

Remember that clearance matters after installation. A refrigerator needs about 1 inch of space on the sides and back for air circulation around the condenser coils. If you push the unit flush against the wall, it will overheat and draw more power. Measure your kitchen space and confirm the recommended clearances in the installation guide before you finalize the purchase.

Compare Features That Affect Daily Energy Use

An internal temperature control with a digital display is more accurate than a dial, so you can set the fridge at 37°F and the freezer at 0°F without guessing. Every degree colder than necessary adds about 5 percent to the refrigerator's energy use. If the model has a 'vacation mode' or 'eco mode,' that is a useful feature for when you are away for extended periods – it raises the temperature slightly while keeping food safe.

Consider the lighting. LED lighting uses up to 80 percent less energy than an incandescent bulb and produces less heat, so the compressor does not have to work as hard to remove that heat. Check if the interior lights turn off automatically when the door is left ajar – some models have a sensor that beeps or switches off the light, which is a small but helpful efficiency feature.

Be cautious with 'smart' features like Wi-Fi connectivity and touchscreen displays. These features draw a small amount of standby power, typically 3 to 5 watts, which adds about 26 to 43 kWh per year. If you do not need to control the fridge from your phone or watch recipes on the door, skip these options and put the money you save toward a more efficient compressor or a larger capacity model.