Energy Efficiency & your kitchen Appliances



Have you ever wondered how much it costs to boil a kettle or which appliances use the most electricity? We’re here to share the best energy-saving tips so you can make your home more energy-efficient. You’ll be surprised at the difference a few simple changes to your everyday routine can make.


Our guide will help you save money on energy bills and discover more sustainable ways to use your kitchen appliances, including ovens, kettles, dishwashers and washing machines.


What appliances use the most energy? 

Kitchen appliances can often be costlier to run than electrical goods in other parts of your home. This table shows the average cost of running some of the most popular kitchen appliances as a share of your total energy bills.


Average total cost of energy bills

Wet appliances (dishwasher, washing machine)


Cold appliances (fridge, freezer)


Cooking (microwave, kettle, oven, hob)


  • Wet appliances

    It may be no surprise that wet appliances like washing machines and dishwashers are the most expensive to run. If you have a tumble dryer, your energy costs for this category are likely to be higher still.

  • Cold appliances

    Fridges and freezers are also expensive kitchen appliances to run, costing an average of 12% of your total household bills. That’s unsurprising, given they need to be switched on constantly to keep your food fresh.

Cooking appliances

Whilst a kettle accounts for around a small share of your energy costs on average, it still contributes a significant cost given the size and capacity of this appliance.

Microwaves are faster and more efficient at cooking than an oven or hob as they only heat the food, not the air inside. However, not all food is suitable for microwave cooking.


Energy saving tips

Now you’re aware of how much these popular kitchen appliances can cost to run, find out how to save energy at home and reduce your bills. Firstly, always check the energy rating of your appliances, especially if you’re buying new ones. This is displayed on the device’s energy efficiency label.

Secondly, don’t choose appliances too large for your needs, as they require more energy to run. For example, a two-person household won’t need the same size fridge as a family of five.

How to save energy when cooking

One of the simplest ways to save energy (and money) is by turning your appliances off standby. For ovens, hobs, kettles, toasters and microwaves, this might mean switching them off at the wall or unplugging them completely.

Some other energy-saving tips for cooking are:

  • Only fill your kettle with as much water as you need to use each time.
  • Use a slow cooker to make stews, sauces and curries. Slow cookers use very little energy compared to the oven or hob and allow the flavours of your dish to develop over time. It’s a win-win.
  • Keep the oven door closed as much as possible when cooking to avoid heat escaping. If you need to check on your food, look through the glass panel in the door.
  • Cover pans with lids to keep the heat in and help food cook faster.
  • If possible, grill dishes rather than baking them. The grill setting requires less energy than heating the oven.
  • Invest in a three-tier steamer. You can boil rice or pasta in the water and steam your vegetables above, so you only need to use one hob ring.
  • Re-heat food in the microwave as it is quicker and more efficient than the oven.

Getting the most out of your fridge or freezer

It can be tricky to reduce the cost of running fridges and freezers, since they must be switched on constantly to keep food cold and fresh. However, there are still ways to maximise the energy efficiency of your fridge or freezer:

  • Consider the position of your fridge within the kitchen. Try to keep it away from heat sources such as radiators, ovens and direct sunlight. Allow at least 5cm around the refrigerator for ventilation so that excess heat can escape from the compressor.
  • Keep your fridge between 1-5˚C for safe but efficient running.
  • Keep your fridge full (but don’t overload it). The more products it contains, the less air there is to keep cool. An empty fridge works harder to maintain the set temperature, using more energy in the process.
  • The same rule is true for a freezer when it comes to temperature control. Just make sure there’s enough room for air to circulate, and always close the door firmly!
  • Store cooked food in an air-tight container, then place in the fridge once cooled. This helps maintain a constant temperature inside the refrigerator, saving energy.
  • Clean your fridge regularly, including the condenser coils and door seal. If these components aren’t working correctly, your fridge will be less efficient.

When to wash clothes and dishes

How often you need to do laundry or run the dishwasher will depend on the size of your household. Naturally, this will impact your energy usage. When it’s time to wash clothes or dishes, these are some of the best energy-saving tips for wet appliances:

  • Avoid washing half-loads where possible. However, some washing machines have a quick wash setting, using less energy for lighter loads.
  • Wash most items on a 30˚C cycle or lower. This is more energy-efficient, and lower temperatures also help prolong the life of your clothes. Underwear, bedding, towels or badly stained clothes should be washed at higher temperatures.
  • Alternatively, use a specialist stain remover treatment, then wash using a cooler setting.
  • Hang your clothes outside or on a clothes airer indoors, as tumble dryers require a lot of energy. If you use the tumble dryer, use a high spin setting on the washing machine beforehand to remove excess water and reduce drying time.
  • If you have a dishwasher, only run it once it’s full. Like the washing machine, use a cool or eco setting where possible.

Invest in high-quality kitchen appliances

At AEG, we offer high-performance kitchen appliances designed with energy efficiency in mind. If you’re looking to upgrade, explore our buying guides to determine which products are best for your home.