Energy-saving appliances Energy-efficient fridge freezers

Fridge freezer

All new fridge freezers must have an energy rating of A+ or above

Storing fresh food is an energy-intensive task, with fridge freezers using electricity 24 hours a day to keep your groceries cool. See our table of the energy-efficient Best Buy fridge freezers that won't rack up your energy bills.

When our experts test fridge freezers, we work out exactly how much power every model uses, as well as the likely annual cost it will add to your bills.

Although fridge freezer energy labels give an indication of which ones are the cheapest to run, our in-depth testing has found that even models that have the same energy label can make a difference to your annual energy bill.

Find out the models that most impressed our lab experts by seeing all our Best Buy fridge freezers.

Top energy-saving fridge freezers

We award our Energy Saver Logo to the fridge freezers which are also the most energy efficient. These models are quick to chill and freeze fresh food, maintain a constant temperature inside and have low running costs based on the amount of usable storage space you’re paying to power.

We reveal our pick of the best energy-saving fridge freezers we've tested in the table below. Which? members can log in to see our recommendations. If you're new to Which?, you can sign up for a £1 Which? trial to unlock the table and gain instant access to all our product reviews.

Energy-efficient fridge freezers
What it
looks like
Fridge freezer make and modelTypeAnnual running costsScoreBest Buy?


Subscriber only contentFreestanding£3685%

One of the best fridge freezers we've ever tested, this freestanding model has some top-spec cooling features. The freezer can freeze an impressive 23kg of fresh food in 24 hours.

Find out which fridge freezer we're talking about - log in or take a £1 Which? trial.


Subscriber only contentFreestanding£5584%

Whether you have a hot or cold kitchen, this fridge freezer doesn't allow the outside temperature to affect it - our testers were impressed by the consistency of its refrigeration and freezing.

Find out which fridge freezer we're talking about - log in or take a £1 Which? trial.


Subscriber only contentFreestanding£5883%

Its distinctive blue glow and ice-making compartment make this fridge freezer stylish and fun - but the speed and quality of its chilling is what makes this model a Best Buy.

Find out which fridge freezer we're talking about - log in or take a £1 Which? trial.

Fridge freezer running costs

Which? tests have found differences in the running costs of similar-sized fridge freezers with the same energy label.

You can use our fridge freezer energy costs calculator to compare a model’s annual running costs with how much it costs to buy to help you find the best-value fridge freezers overall.

Fridge freezer efficiency tips

  • Don’t leave the door open for longer than necessary or it will be filled with warm air and have to work to cool down again.
  • Avoid putting warm food in your freezer - let it cool down first.
  • Keep your fridge freezer at least three quarters full - don’t overfill though, or you’ll stop air from circulating round the compartments and the appliance will use more energy to keep cold.

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