Published on 17/01/2020

We're often told how to save energy, but finding out how much each appliance in our homes costs is a bit harder to find out. We've all heard old wives’ tales, such as leaving your phone charger plugged in wastes a lot of energy, but are they true?

We've created an infographic and an article to give you all the answers and to debunk some energy myths.

It's not easy to estimate how much energy a household uses because it depends on many different factors:

  • how many people are in the house,
  • how well insulated your home is,
  • how many appliances you use and how much time you spend at home.

Low consumption is estimated being 1,900kWh-2,500kWh; medium consumption estimated being 3,100kWh-4,200kWh; high consumption 4,600kWh-7,100kWh.

In this article, we want to explain how all these numbers add up and what are the most significant energy users in your home.


Your fridge is the most expensive item in your house to run. It consumes around one-third of the total energy in your household. If you leave your fridge door open or if the room temperature is high, the refrigerator has to work harder to maintain the optimal temperature.

You can reduce your energy consumption by investing money into a more energy-efficient fridge. For example, a refrigerator with A+++ ranting could use up to 80% less energy than the one with an efficiency rating of D.


The cost of running an electric oven will depend on many factors, such as how energy-efficient it is. However, you also need to take into account things like how well insulated the oven is, the size of the oven and what is the age of your oven too.


The TV uses a relatively big chunk of household energy. The best way to save energy is obviously by not watching it or watch it less. However, another way to save energy is to turn off your TV when not in use and don’t leave it on standby, especially if there is a digital clock on it. Any household item that has a digital clock will be an energy user.

You could also consider having an extension cable with all your TV-related appliances plugged into one extender: TV, DVD, games console or TV box and when you are not using it unplugged it all in one go.

Tumble Dryer

The tumble dryer can be relatively expensive to use. It is estimated that an average household uses it around 150 times a year. You can quickly minimise the energy consumption by utilising sunny days and drying your clothes outside. The British rainy weather might make that difficult, so make the most of it when the opportunity arises.

Another option is only to use the dryer when it is full; your dryer won’t use less energy when it is half full. Also, consider using a spin cycle on your washing machine before drying your clothes in the tumble dryer because it will reduce the time you need to dry your clothes.

Phone Charger

It is a myth that chargers consumer a lot of energy if left plugged and not in use. If you leave your charger plugged in when not in use it will only cost you a few pence a year. That’s not to say you should leave it plugged in – saving energy, however little, is still really important!

If you charge your phone 4 hours a day 365 days a year your bill would be just over £1 for the whole year.


The amount of energy you use will depend on the individual household. However, we are all used to having light in our homes, so sometimes we leave the lights on without noticing they are on. So, to save energy, turn your lights off. Also, swap your traditional lightbulbs with the energy-efficient ones. LED lights can use as much as 90% less energy than traditional ones and last as much as 9 times longer.


Switching energy supplier could be the best way to save money on your energy bills. To find out if you could save by switching to HUB energy, get a quote today by visiting our home and business energy pages.