How to Compare Energy-Efficient Appliances Before You Buy
When replacing an old appliance, many people focus on the purchase price.
While the upfront cost is important, it only tells part of the story.
An appliance that costs a little more to buy could save you hundreds of pounds in electricity costs over its lifetime.
Understanding how to compare energy-efficient appliances can help you make smarter purchasing decisions and reduce your household energy bills.
Why appliance running costs matter
Imagine you're choosing between two fridge freezers.
One costs £350 and another costs £450.
At first glance, the cheaper model looks like the better deal.
However, if the more expensive model uses significantly less electricity each year, it could end up costing less overall.
This is why looking at running costs is just as important as looking at the purchase price.
Understanding Energy Labels
Most household appliances display an energy label.
These labels help you compare efficiency between similar products.
You'll usually see ratings ranging from:
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A (most efficient)
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B
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C
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D
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E
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F
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G (least efficient)
An appliance with a higher efficiency rating generally uses less electricity to perform the same job.
Look Beyond the Rating
The energy rating is useful, but it shouldn't be your only consideration.
Pay attention to:
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Annual electricity consumption
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Appliance size
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Features
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Household needs
For example, a large A-rated fridge may still use more electricity than a smaller C-rated fridge simply because it has greater capacity.
Calculate the Annual Cost
Most energy labels include estimated annual electricity usage in kWh.
You can estimate yearly running costs using:
Annual kWh Usage × Your Electricity Unit Rate
Example:
150 kWh per year × £0.30
= £45 per year
Comparing these figures between products can reveal substantial savings over time.
Appliances Worth Comparing Carefully
Energy efficiency matters most for appliances that run frequently or consume large amounts of electricity.
These include:
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Fridge freezers
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Washing machines
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Tumble dryers
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Dishwashers
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Electric heaters
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Air conditioning units
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Hot tubs
Even small improvements in efficiency can add up over several years.
Consider Product Lifespan
A quality appliance may remain in your home for 10 years or more.
Saving £30 per year on running costs could mean £300 or more in total savings.
When viewed over the full lifespan of the appliance, efficiency often becomes much more important than the initial purchase price.
Making Smarter Energy Decisions
Before replacing any appliance, compare both the purchase price and the expected running costs.
A few minutes of research can help you reduce your household energy costs for years to come.
Want to understand how appliance costs affect your overall energy usage?
Try our Energy Usage IQ App to explore where your energy is going and identify opportunities to save.