Fridge / Freezer

Fridges AND freezers are some of the biggest power consumers in households (especially when used inefficiently), accounting for about 17% of all domestic energy used in the UK. EcoFrenzy show you a few simple methods to save money, energy and the environment when using your fridge freezer.

The optimum temperature in a fridge is approximately 4C and -18C in a freezer; power consumption increases dramatically when lower temperatures are maintained.

If you set your freezer at -25C the amount of refrigeration energy wasted can be as much as 10% which can cost (per year) an extra

£9 (= 30kg of CO₂)

If you bought a fridge-freezer today, it would use, on average, 50% less energy than a model available in 1990. By 2020 it is expected to be one of the most energy-efficient appliances in your home. This could mean savings of up to £44 per year.

Try not to over specify your fridge freezer. Differently sized A+ rated fridge freezers will use different amounts of electricity. For instance, a 157 litre fridge with an 87 litre freezer would cost about £42 a year to run, whereas a larger 230 litre fridge with a 97 litre freezer would cost £48 a year to run, costing an extra £6 = 20kg CO₂.

When purchasing a new fridge freezer, search for these money saving and environmentally friendly features.


​Choose the smallest possible model that suits your needs. One larger refrigerator is cheaper and more efficient to run than two smaller ones.


​Buy an appliance with the best energy rating you can. The most efficient models carry the A+++ rating.


Chest freezers tend to be more energy efficient because less cold air escapes when the lid is opened as compared to when the door is opened of an upright freezer.


​When buying a new fridge or freezer find out which refrigerant is used – Greenfreeze hydrocarbon technology is the most environmentally friendly according to Greenpeace.