Best Energy-Efficient Appliances That Can Lower Your Utility Bills

Buying a new appliance is usually presented as a simple choice: find the features you want, compare prices, and pick the model that fits your budget.

But the purchase price is only part of the cost.

An appliance can stay in your home for 10 years or more, and every year it can add to your electricity, gas, or water bills. A cheaper appliance that costs more to operate may end up being more expensive over its lifetime than a more efficient model.

That is why energy efficiency matters.

The best energy-efficient appliance is not necessarily the one with the highest price or the most features. It is the one that uses less energy or water to perform the job you actually need, without paying so much extra upfront that the savings take too long to recover.

For most households, the biggest opportunities are heat pump water heaters, refrigerators, clothes washers, heat pump dryers, dishwashers, and heating and cooling equipment.

Here is how to compare them—and where the biggest savings may be.

1. Heat Pump Water Heater: One of the Biggest Opportunities

If your goal is to make a noticeable difference in household energy use, a heat pump water heater deserves serious consideration.

Unlike a conventional electric resistance water heater, a heat pump water heater does not rely primarily on an electric heating element to create heat. Instead, it moves heat from the surrounding air into the water.

ENERGY STAR says a certified heat pump water heater can use about 70% less energy than a standard electric water heater. For a household of four, ENERGY STAR estimates savings of about $550 per year under its stated assumptions.

That does not mean every household will save exactly $550 per year.

Actual savings depend on household size, hot-water consumption, electricity rates, the existing water heater, installation conditions, and how the new system is operated.

Why it can save so much

Water heating is a major household energy expense. ENERGY STAR estimates that water heating accounts for roughly 12% of home energy use.

Because heat pump water heaters move heat instead of generating all of it directly, they can deliver the same basic service with substantially less electricity.

What to check before buying

Look beyond the purchase price.

Consider:

• Tank size and household demand
• Energy factor or other efficiency information
• Installation requirements
• Available space
• Noise
• Operating modes
• Local electricity rates
• Available utility rebates

ENERGY STAR also points out that heat pump water heaters can have a higher upfront cost, but the energy savings can offset that difference over time.

Best for: Homes with an aging electric water heater and relatively high hot-water use.

Bottom line: If you are replacing an electric water heater anyway, efficiency should be one of the most important factors in the decision.

2. Refrigerator: Small Savings That Continue Every Day

A refrigerator is different from many household appliances because it runs around the clock.

You may only use your dishwasher for an hour or your washing machine for part of a day, but your refrigerator is constantly maintaining a safe temperature.

That makes efficiency particularly important.

ENERGY STAR says certified refrigerators are about 9% more energy efficient than models meeting the federal minimum efficiency standard.

The savings from replacing a relatively new refrigerator may not justify buying a new one solely for efficiency. However, replacing an old refrigerator—especially one that is more than 15 years old—can make more financial sense.

ENERGY STAR estimates that older refrigerators can cost considerably more to operate, and notes that an old refrigerator uses about 20% more energy on average than a model that has earned the ENERGY STAR label.

Bigger is not always better

One common mistake is buying a refrigerator that is much larger than the household actually needs.

In general, larger refrigerators consume more energy.

ENERGY STAR’s buying guidance suggests that highly efficient refrigerators are often in the 16-to-20-cubic-foot range, although the right size depends on the household. Top-freezer models also tend to use less energy than bottom-freezer and side-by-side designs.

What to compare

When shopping, look at:

• Annual electricity use
• Estimated annual energy cost
• Refrigerator size
• Freezer configuration
• Door design
• Energy efficiency certification

A refrigerator with more screens, larger doors, or additional features is not automatically a better financial choice.

Best for: Replacing an older refrigerator or eliminating an inefficient second refrigerator.

Bottom line: Buy the size you need, compare annual energy use, and be especially cautious about keeping an old second refrigerator running year-round.

3. ENERGY-EFFICIENT Clothes Washer: Reduce Both Water and Energy Use

Laundry is another area where efficiency can add up because households run many loads throughout the year.

ENERGY STAR estimates that the average American family washes about 300 loads annually. Certified clothes washers use about 20% less energy and about 30% less water than conventional models, according to ENERGY STAR.

That means the potential savings are not just on the electricity bill.

A more efficient washer can also reduce water consumption and, depending on the home, the energy required to heat that water.

The hidden cost of hot water

Washing machines do not necessarily use large amounts of electricity simply because the motor is running.

A significant portion of the energy can go into heating water.

ENERGY STAR notes that water heating accounts for about 90% of the energy used by a clothes washer. Washing with cold water can therefore substantially reduce energy consumption.

The most useful features

Look for:

• ENERGY STAR certification
• Efficient water use
• Appropriate capacity
• High-speed spin options
• Cold-water cycles
• Automatic load sensing

A larger washer is not necessarily more economical if you regularly run small loads.

The best match is a machine that fits the amount of laundry your household actually produces.

Best for: Households that do frequent laundry or are replacing an older washer.

Bottom line: A highly efficient washer can reduce both water and energy costs, especially when combined with cold-water washing and full loads.

4. Heat Pump Dryer: A Better Option for Frequent Laundry

Dryers can consume a significant amount of electricity because conventional models use substantial heat to remove moisture from clothing.

Heat pump dryers work differently.

Instead of continuously creating and exhausting hot air, they use heat-pump technology to recover and reuse heat during the drying process.

ENERGY STAR says certified heat pump dryers use around 70% less energy than conventional clothes dryers and can save more than $500 in electricity costs over the life of the product under its assumptions.

The exact savings will depend on how often you use the dryer and your local electricity rate.

Why usage matters

If you dry one or two loads per week, the financial benefit may be relatively modest.

If your household runs the dryer almost every day, efficiency becomes much more important.

Also look for automatic moisture sensors. ENERGY STAR notes that sensor-based drying can automatically stop the cycle when clothes are dry, reducing unnecessary drying time.

One simple alternative

The cheapest energy-efficient dryer is sometimes no dryer at all.

Air-drying clothes can eliminate the electricity used by the dryer. It is not practical for every household or every type of clothing, but even partially air-drying laundry can reduce dryer use.

Best for: Households that use a dryer frequently and are replacing an existing unit.

Bottom line: If your dryer runs often, a heat pump model can be worth considering because the potential energy savings are much larger than simply choosing a dryer with extra features.

5. Dishwasher: Efficiency Without Giving Up Convenience

Dishwashers have improved considerably over the years.

Modern ENERGY STAR certified dishwashers use improved water filtration, soil sensors, water jets, and rack designs to reduce water and energy consumption while maintaining cleaning performance.

ENERGY STAR estimates that a standard-size certified dishwasher costs about $50 per year to operate under its assumptions. Current ENERGY STAR criteria limit standard-size models to no more than 240 kWh per year and 3.2 gallons of water per cycle.

The biggest mistake: pre-rinsing

You might assume that rinsing every dish before loading the dishwasher makes the machine work less.

Often, it simply uses more water.

ENERGY STAR recommends scraping food from dishes rather than thoroughly rinsing them before putting them in the dishwasher. Modern dishwashers and detergents are designed to handle normal food residue.

Running full loads also makes sense because a dishwasher generally uses similar amounts of water and energy regardless of whether it is completely full.

What to look for

Compare:

• Annual energy use
• Water consumption per cycle
• Soil-sensing capability
• Cycle options
• Heated-dry options
• Capacity

Best for: Households that frequently run a dishwasher.

Bottom line: A more efficient dishwasher can reduce both water and energy consumption, but how you use it matters almost as much as the appliance itself.

6. Heating and Cooling Equipment: Potentially the Biggest Category

If the goal is to reduce a home’s total energy bill, it would be a mistake to focus only on kitchen and laundry appliances.

Heating and cooling can represent a much larger opportunity.

Heat pumps are particularly interesting because they move heat rather than simply creating heat. A properly selected and installed heat pump can provide both heating and cooling from the same system.

However, heating and cooling systems are much more complicated purchases than refrigerators or washers.

Your climate, home size, insulation, ductwork, existing system, electricity rates, and installation quality all matter.

That means simply choosing a product with a high efficiency rating does not guarantee the lowest total cost.

For many homeowners, improving insulation, sealing air leaks, maintaining equipment, or correcting duct problems can also be important.

Best for: Homeowners replacing an aging heating or cooling system.

Bottom line: This category can offer large savings, but professional sizing and installation matter as much as the efficiency rating.

How to Know If an Energy-Efficient Appliance Is Actually Worth It

The most efficient appliance is not automatically the best financial decision.

The better question is:

A simple calculation can help.

Example

Suppose:

• Standard model: $900
• Efficient model: $1,100
• Additional cost: $200
• Estimated annual savings: $50

The simple payback period would be:

$200 ÷ $50 = 4 years

If you expect to use the appliance for another eight years after that, the additional efficiency may make financial sense.

But if the estimated annual savings are only $15, the payback period becomes more than 13 years.

That is why buying the most expensive “efficient” model is not always the smartest money-saving strategy.

Don’t Shop by the ENERGY STAR Logo Alone

ENERGY STAR is a useful starting point, but it should not be the only number you examine.

The federal EnergyGuide label can help you compare the estimated annual energy use and operating cost of similar appliances.

For example, two refrigerators may both qualify as energy efficient, but one may consume less electricity than the other.

The same principle applies to washers, dishwashers, and other appliances.

When comparing models, look at:

1. Purchase price
2. Annual energy use
3. Estimated annual operating cost
4. Water consumption
5. Expected useful life
6. Maintenance requirements
7. Available rebates
8. How frequently you will use the appliance

The EnergyGuide estimate is not a guarantee of your actual bill. Your household usage and local utility rates can be different.

That distinction is important when evaluating whether a purchase will really save money.

The Best Energy-Efficient Appliance Depends on Your Home

There is no single appliance that will save every household the most money.

Instead, start with the appliances that are:

• Old
• Used frequently
• Expensive to operate
• Due for replacement anyway

For example, replacing a 15-year-old refrigerator may make more sense than replacing a relatively new washer simply because the new washer has a slightly better efficiency rating.

Likewise, a household with heavy laundry use may benefit more from a highly efficient washer and heat pump dryer than a household that does laundry only once or twice a week.

And if an electric water heater is approaching the end of its useful life, a heat pump water heater may deserve much more attention than upgrading a small kitchen appliance.

A Simple Money-Saving Priority List

If you are trying to reduce utility costs without replacing everything at once, consider this order:

1. Replace an inefficient water heater

Especially if you have an older electric resistance water heater and your household uses a lot of hot water.

2. Replace very old refrigerators

Pay particular attention to old second refrigerators that run continuously.

3. Upgrade frequently used laundry appliances

The savings become more meaningful when your household runs many loads every week.

4. Choose an efficient dishwasher when replacement is due

Do not replace a perfectly functional dishwasher solely for a small potential energy saving unless the numbers make sense.

5. Consider heating and cooling efficiency

For homeowners replacing an aging HVAC system, efficiency should be part of the total cost calculation.

Final Takeaway: Buy for Lifetime Cost, Not Just Sticker Price

Energy-efficient appliances can lower utility bills, but the smartest purchase is not necessarily the appliance with the highest efficiency rating.

The better approach is to look at the total cost of ownership.

A $1,000 appliance that uses less energy may be a better deal than an $800 appliance if the additional $200 is recovered through lower operating costs.

At the same time, paying $500 more for an ultra-efficient model that saves only a small amount each year may not make financial sense.

For most households, the biggest opportunities are likely to come from heat pump water heaters, refrigerators, clothes washers, heat pump dryers, dishwashers, and efficient heating and cooling systems.

Before buying, check the ENERGY STAR certification, read the EnergyGuide label where applicable, compare annual energy use, look for utility rebates, and calculate the approximate payback period.

The goal isn’t simply to buy the appliance that uses the least energy.

The goal is to spend less money over the life of the appliance.

That is the number that matters.