Ever opened your electricity bill and thought, “Wait… how did it get this high?” You’re not the only one. With energy prices always changing and more gadgets filling our homes, it's easy to lose track of what's actually using up the most power.
Let’s take a look at the main culprits in UK households—and how you can cut down on costs without giving up your everyday comforts.
1. Heating & Hot Water – The Biggest Energy User
No surprises here—heating and hot water take up the biggest chunk of your energy bill. Whether you use electric or gas heating, it can easily eat up 50% to 60% of your total energy use. If you're using an electric boiler or immersion heater, it can cost even more.
Simple ways to save:
Get a smart thermostat to manage temperatures more efficiently.
Lower your thermostat by just 1°C—this can save up to 10% a year!
Insulate your home better—think loft, walls, and sealing up draughty spots.
2. Washing Machines & Tumble Dryers
We all love fresh, clean clothes—but running the washing machine and especially the tumble dryer adds up. A single dryer cycle can use around 2.5 to 4.5 kWh of electricity.
What helps:
Wash clothes at 30°C—it’s just as effective and uses a lot less energy.
Dry clothes naturally when you can. It’s free and gentler on your fabrics.
3. Fridge Freezers – Always On
Your fridge freezer runs all day, every day—so even if it doesn’t feel like it uses much, it adds up over time. Older models are even less efficient and can cost between £50–£100 a year to run.
Energy-saving tips:
Don’t overstuff your fridge—but don’t leave it too empty either.
Clean the dust off the coils at the back every so often to help it run better.
4. Electric Showers – Quick But Power-Hungry
A warm shower is one of life’s little joys, but electric showers use a lot of electricity—typically between 7.5 and 10 kW. Just 10 minutes a day can really add up on your bill.
Easy switches:
Keep showers short—every extra minute counts.
If you can, switch to a mixer shower that uses hot water from a gas boiler.
5. Ovens & Electric Hobs
Using the oven or electric hob for cooking can take around 2–2.5 kWh per hour. While it’s not something you use all day, it can still be a noticeable cost if you cook often.
Smarter cooking tips:
Batch cook meals to get more from each oven use.
Use energy-saving appliances like air fryers, microwaves, or slow cookers when possible.
6. Dishwashers
Dishwashers aren't the worst offenders, but they’re still worth mentioning. A typical cycle uses about 1.5 to 2 kWh, especially if you run it every day.
To cut down:
Wait until it's full before running a cycle.
Use the eco mode—it takes longer but uses less energy and water.
7. TVs, Laptops & Tech Gadgets
Each device may not use much power on its own, but when you’ve got a TV in every room, laptops, consoles, smart speakers, and phones charging all the time—it adds up. And yes, standby mode still uses energy.
Little changes, big impact:
Switch devices off at the plug when not in use.
Use smart power strips or timers for convenience.
Turn on power-saving mode where available.
Understanding which appliances use the most electricity can really help you take back control of your energy usage. You don’t need to go off-grid or give up modern comforts—just being a little more mindful can make a real difference.
Start small. Maybe turn the heating down a notch, air-dry your laundry, or upgrade that old fridge. Over time, these simple habits can lead to lower bills and a more energy-efficient home.
