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Why Is My Energy Bill So High?

Uncover the reasons behind your soaring energy costs. Adopting some simple habits can help you manage and reduce them.

Take Control of High Bills

Are you startled by a skyrocketing energy bill? The frustration of unexpectedly high energy costs can be overwhelming. Understanding why your bill has surged is the first step towards gaining control over your expenses. Numerous factors contribute to elevated energy bills, from appliance usage and seasonal variations to inefficiencies in your home.

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Impact of Old Appliances​

The age of your appliances can heavily influence your electricity bills. Consider upgrading to more energy-efficient models; they consume less energy, often have a longer lifespan, and should require less maintenance. Upgrading now can unlock long-term savings.

When you’re in the market for a new appliance, check its energy label. It shows you how much energy the appliance uses compared to similar models. Look for the highest rating on the A-G scale, or A+++ to G scale for older models. 

Also, consider the size of the appliance, as different sizes with the same rating could use varying amounts of electricity. Always opt for the product with the best energy rating for the size you need.

Empty purple tumble dryer on a pink circular background

Tumble Dryers

This is your biggest opportunity to save. Notorious for their energy use, older models could cost over FOUR TIMES as much to run as a new low-energy heat pump dryer. If you use your dryer four times per week, payback could be as quick as TWO YEARS, so don’t delay! 

Open fridge with food and drink inside on pink circular background


You’re probably spending around £83 a year here but choosing an A-rated unit over an F-rated one can halve your spend. Remember, keeping them full helps keep costs down as it’s hard to cool empty space – if you don’t have enough food in there, just add containers of water.

Purple washing machine with water inside on a pink circular background

Washing Machines

If you switch from a D to an A-rating, you’ll save £11 over the year, but whichever machine you have, you can save 40% by washing at 30 degrees rather than a hotter cycle.

Open purple dishwasher with plates inside on a pink circular background


These account for about 8% of an average electricity bill, or about £81 a year. A-rated dishwashers save around £39 and use less water – another win. The eco setting always uses less power and is better than washing by hand.

Purple oven with pink tea towel hanging from the door on a pink circular background

Ovens and Hobs

For maximum efficiency, choose A+++ rated gas and electric ovens. Air fryers are popular for a reason – they are genuinely a quicker and cheaper alternative, costing just 15p to run a 1,000W air fryer for 30 minutes compared to 21p for an A rated electric oven.

LED lightbulb on a pink circular background


No, it’s not all about appliances. Switch your incandescent and halogen bulbs to super efficient LEDs. They cost more, but it’s a price worth paying – lighting makes up about 11% of your bill but you could save £13 per year for each bulb you swap.

Uncovering Phantom Load

Many of us have appliances and gadgets continuously plugged in and switched on, needlessly draining energy without us necessarily realising. This wasted energy makes up around 30% of the average energy bill.

Some appliances, like a fridge or freezer, need to be left on all the time. But many appliances are left on that don’t need to be. This background electricity use is known as your ‘Phantom Load’. It can be categorised in three ways.

Large number one on the left side of the page with the back of a plug on the right side

Modern electronics or appliances left plugged in or on standby.

Turning devices off rather than leaving them on standby is a good idea as they still continue to use energy. But with modern electronics, the savings are relatively small.

Large number two on a black background on the left side of the page and a towel on a handrail on the right side

The things you know are on but don’t know what they’re costing.

Do you know how much your electric towel rail costs you each day (a 1kW unit without a thermostat would be £6.96 PER DAY!)? Or those halogen spotlights? Once you know this information, you can then make smart decisions about using your things more efficiently.

Blue number three on a black background on the left side of the image and a purple fridge with a white note stuck on it on the right

Forgotten-about appliances, particularly old electronics and old appliances left plugged in or on standby.

Easy-to-forget things, like extra fridges, set-top boxes and old computers can fly under the radar and continue to use energy without you realising. Switching off these appliances can result in the biggest savings.

Some of the biggest energy-wasting culprits to look out for include old or faulty set-top boxes, which could cost £153 on standby for a year, and extra fridges which could be adding an extra £102 to your yearly energy bill. Read more about Phantom Load, including the costs of some common culprits here.

Doctor with blue spiky hair and shiny glasses with writing saying The Energy Doctor Says:

“Many people I speak to are really worried about their energy bills. The reality is that the only way we can lower them is to reduce the amount of energy we use and the key to that is measuring our usage. Understanding whether your Phantom Load is low, medium or high is the first step towards reducing your electricity consumption and can lead to big savings.”

Roof of a purple house with pink squiggly arrows extending out of the roof and into a black cloudy sky

Addressing Inefficient Homes

If your home isn’t very energy efficient – perhaps because it’s old and poorly insulated – it can be hard to keep your energy bills down for both electricity and gas. However, there are plenty of changes you can make at relatively low cost. 

A quick and easy win is to replace any halogen or incandescent lightbulbs with LEDs. For every bulb you swap, you could save £13. It no longer makes sense to wait until old bulbs break. 

To keep hold of the heat you’re paying for in colder weather, insulate hot water pipes, use draught-proofing tape around windows and doors, regularly bleed your radiators and lower your thermostat. Turning your heating down by just 1 degree can cut your gas bill by 10%. Reducing your boiler flow temperature could save you 12%,

For bigger, long-term savings, check you have the recommended 27cm of loft insulation. An uninsulated home loses around a quarter of heat through the roof, so make sure to top it up yourself or pay a professional to do it for you. 

Many homes will qualify for 90% subsidies on insulation upgrades through the Great British Insulation Scheme. We’ve teamed up with insulation experts InstaGroup to make your insulation upgrades as easy as possible. Find out more in this blog article, which includes a handy checker to see if you qualify and a form to request a free consultation from InstaGroup.

Purple meter reading 01326 kWh with wires coming out of the bottom on a pink circular background

Billing Error Checks

If your energy bill is suddenly much more expensive, then perhaps there’s another problem – you might have a billing error. 

If your bill is based on estimated readings, compare these figures against your actual meter. If the estimate is much higher than what you’ve used, then contact your energy company with your meter readings and have a more accurate bill reissued.

Another time when you might be hit by a seemingly high bill is if you’ve just moved from estimated billing to accurate billing – like if you’ve had a smart meter fitted. If you were paying less than you should while you were on estimated billing, then your new accurate bill may seem expensive.

Purple smart meter cartoon in front of Loop mobile app screen of daily electricity use

Keep Track of Energy Costs

If you don’t know how much energy you’re using and what it’s costing you, then it’s hard to control it. This can result in higher bills. Research has shown that simply seeing the cost of what you’re using can easily cut your energy bill by 5%. It’s called the “Feedback Effect”. 

Using an energy-saving tool like Loop that’s linked to your smart meter makes it easy to keep track of what you’re using and what you’re spending on energy. When you can track how your home uses energy, you can spot where to make the biggest savings. Not only will this focus your energy-saving effort, you’ll no longer get the dreaded energy bill shock.