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Brits could save up to £375 on energy bills by building a few simple habits

With rising food prices and inflation in August at 9.9%, just 0.2% lower than the 40-year high of 10.1% in July, thousands of households in the UK are now struggling to make ends meet. Adding fuel to the unfolding cost-of-living crisis, energy bills are soaring and many people fear they would need to choose between food and heating this winter. The new increase in energy prices is expected to come into effect in October, squeezing out an even larger portion of the income of millions of Brits.

According to Business Secretary Kwasi Kwarteng, the UK is less vulnerable to the current gas crisis than most of Europe. Still, the rise in wholesale gas prices increases the electricity price cap set by industry regulator Ofgem. The system introduced by Theresa May’s government in 2019 capped the standard variable tariffs temporarily, promising affordable prices for gas and electricity. But it is now being adjusted quarterly and is forecast to be raised to £4,266 annually early next year – more than twice the current £1,971 set in April 2022. All this prompted the analyst team at BestBrokers to look into typical household appliances and their power consumption, aiming to answer the question how families can reduce their energy bill this season.

How to Save Money on Your Energy Bills

What people can do to reduce their electricity bills is simply look at common household appliances that draw up the most energy. One of the easiest ways to save energy is by unplugging the appliances when they are not in use. You can also turn the lights off when you don’t really need them, make your house heatproof and install electricity usage monitors. Opting for energy-efficient models is also smart in the long term, although appliances with higher energy ratings are more expensive. The energy efficiency classes are from A to G, with those labeled A being the most energy-efficient and F and G-rated products waste the most electricity.

The standby mode, even though quite handy, still uses electricity. According to the UK-based Energy Saving Trust, we can save around £55 (£45 in Northern Ireland) a year if we turn the appliance or device off its standby mode. The savings have been estimated based on an electricity price of 28.3p/kWh (based on the April 2022 price cap) for England, Scotland, and Wales. Other methods for reducing energy bills include washing clothes at lower temperatures, avoiding the tumble dryer altogether, and using the dishwasher only when it is full.


The displayed annual energy savings tips are for a typical three-bedroom home in England, Scotland or Wales that uses gas heating. Savings are calculated based on a gas price of 7.4p/kWh and electricity price of 28.3p/kWh (per April 2022 price cap), while water savings use average occupancy. The numbers for Northern Ireland use an oil price of 9.2p/kWh and an electricity price of 30.9p/kWh (as of July 2022).

Calculate the Potential Savings for Your Home

There are several things to keep in mind when assessing how much you could save from your energy bill every month. What appliances do you have in your home? Which ones are used regularly (once a day, twice a week, etc.)? Of course, while some appliances such as refrigerators are in use 24 hours a day, we use others just for a short period of time.

You need to calculate the hourly, daily, or monthly power consumption for every appliance based on its wattage, a unit of power expressed in watts (W) or kilowatts (kW). Usually, it is displayed on the back or the bottom of the appliance and although it may differ slightly across brands, you can also find the typical wattage of every appliance or device online. For instance, most microwave ovens have a maximum power of 900W. Alternatively, you can calculate the wattage yourself by finding the electrical draw and the voltage, and using the following formula:

Power Consumption (Watts) = Electrical draw (Amps) x Voltage (Volts)

To find the actual daily consumption of the appliance, however, you need to multiply the wattage by the operational hours. The energy consumption is usually expressed as kilowatts hour (kWh); one kW equals 1000W. The kWh measure does not show how much an appliance would consume in 1 hour. Instead, it represents the energy consumption of keeping a 1000W appliance running for 1 hour.

kWh = Wattage (W) x Operational Hours

If we have, for instance, a 10W LED light bulb, we can find out how much energy it consumes by multiplying its wattage by the hours it will be switched on per day. Let’s say we use the bulb for 8 hours a day.

kWh = 0.01 x 8, which means the LED bulb has an average daily consumption of 0.08kWh. Now that you have a way to calculate how much energy your appliances are draining, you can easily see the potential savings from reducing their use.

Household Appliances Wattage

Appliance/DeviceMininmum WattageMaximum WattageStandby ModeHours of Use Per Day at Typical WattageDaily Energy Consumption (kWh)Monthly cost
40W light bulb (incandecent)40W40WN/A8 hours at 40W0.32kWh£2.72
LED light bulb7W10WN/A8 hours at 10W0.08kWh£0.68
Fluorescent tube28W45WN/A8 hours at 30W0.24kWh£2.04
Toaster1200W2500WN/A1/2 hour at 1200W0.6kWh£5.09
Coffee maker (espresso)800W1400W2W-3W1/2 hour at 1000W0.5kWh£4.25
Microwave oven500W1400W1W-3W1 hour at 800W0.8kWh£6.79
Electric kettle1200W3000WN/A1 hour at 2000W2kWh£16.98
Iron1000W3000WN/A1 hour at 2400W2.4kWh£20.38
Refrigerator100W300WN/A24 hours at 150W3.6kWh£30.56
Vacuum cleaner600W2000WN/A1/2 hour at 1600W0.8kWh£6.79
Electric oven (single)2000W3500W1.9W-3.5W1.5 hours at 2200W3.3kWh£28.02
Stove hobs (plate) per hob1000W2000W1W-3W1 hour at 1600W1.6kWh£13.58
Induction hobs (per hob)1000W2000W4W-8W1 hour at 1600W1.6kWh£13.58
Slow cooker150W300W1W4 hours at 200W0.8kWh£6.79
Kitchen vent hood50W200W1W-2W1 hour at 100W0.1kWh£0.85
Pressure cooker700W2000W1W1/2 hour at 1800W0.9kWh£7.64
Washing machine (8kg load)500W2500W2W-6W2 hours at 2000W4kWh£33.96
Dishwasher1000W1600W2W-3W1 hour at 1600W1.6kWh£13.58
Tumble dryer1000W3500W3W1 hour at 3000W3kWh£25.47
Hot water immersion heater3000W4000WN/A4 hours at 4000W16kWh£135.84
Instant water boiling tap2000W2500W15W1 hour at 2000W2kWh£16.98
Games console100W350W5.4W2 hours at 200W0.4kWh£3.40
Broadband router5W15W5W24 hours at 10W0.24kWh£2.04
LCD LED TV, various sizes20W300W2.3W4 hours at 70W0.28kWh£2.38
Smartphone (charging)2W7WN/A1 hour at 7W0.007kWh£0.06
Tablet (charging)10W15WN/A1 hour at 15W0.015kWh£0.13
Phone/tablet charger (no device connected)N/AN/A1W20 hours at 1W0.02kWh£0.17
Laptop computer40W80W1W – 3W4 hours at 50W0.2kWh£1.70
Desktop PC100W350W1W – 3W4 hours at 200W0.8kWh£6.79
Gaming PC300W650W1W – 3W4 hours at 450W1.8kWh£15.28

This list of appliances and their average energy consumption uses an electricity price of 28.3p/kWh. Note that the daily consumption in kWh depends on the amount of time each appliance is in operation. This will vary significantly across consumers since some will play on their gaming consoles for 2 hours every day, while others may not even have such a console in their homes.