Opinion · Energy & Home
Stop sweating the kettle: the Appliance Running-Cost Index 2026, and where your money actually goes
Britain aims most of its energy anxiety at the kettle and the little red standby light. The real money sits in four appliances, and the air fryer was never magic.
There is a national ritual in this country of feeling guilty about the kettle. We boil only what we need, we switch the telly off at the wall, we read scare pieces about the microwave clock, and we feel virtuous. Almost none of it matters. When you line up what a British home’s appliances actually cost to run in 2026, the things people fret over are the small change, and the things nobody mentions quietly drain the account.
So here is the ranking, priced at the current 26.11p per kilowatt-hour cap. Below is the Look Into Appliance Running-Cost Index 2026: the everyday appliances, ordered by what they cost you over a year, with the pence-per-use figure that should decide where you bother trying.
| # | Appliance | Power | Cost per use | Cost per year | Verdict |
|---|---|---|---|---|---|
| 1 | Plug-in electric heater | 2,000 W | £2.09 / hour | £760* | Big spender |
| 2 | Tumble dryer | 2,500 W | 97.9p / cycle | £153 | Big spender |
| 3 | Electric oven | 2,100 W | 54.8p / use | £143 | Big spender |
| 4 | Electric shower | 8,500 W | 37.0p / use | £135 | Big spender |
| 5 | Dishwasher | 1,200 W | 47.0p / cycle | £98 | Middling |
| 6 | Standby, whole home† | n/a | n/a | £65–£100 | Collective |
| 7 | Washing machine | 1,000 W | 26.1p / cycle | £54 | Middling |
| 8 | Air fryer | 1,500 W | 19.6p / use | £51 | Small change |
| 9 | Kettle | 3,000 W | 3.9p / boil | £43 | Small change |
| 10 | TV (50-inch LED) | 90 W | 11.7p / evening | £43 | Small change |
| 11 | Fridge-freezer | 17 W avg | runs 24/7 | £39 | Small change |
*The heater’s yearly figure assumes heavy seasonal use; the hourly rate is the number that matters. †Whole-home standby is the combined draw of every device left plugged in, worth 6–10% of a typical electricity bill; no single device accounts for much of it. Figures are typical values at the 26.11p/kWh price cap (July–September 2026) and vary with model, usage and tariff. See methodology and sources below.
The one-line takeaway
You could air-fry dinner every night for a month and still spend less than three hours running a plug-in electric heater. Your habits around the small stuff barely register. The heat, the drying, the hot water and the oven are the whole game.
The big four that actually matter
Anything that makes heat is where your money goes, because heat is the most energy-hungry thing electricity does. A plug-in electric heater runs at about £2.09 an hour, which makes it the single most expensive plug in most homes by a distance. The tumble dryer is next, at just shy of a pound every time you dry a load. Then the oven at around 55p a use, and the electric shower at 37p a go, several times a day in a busy household.
These four are the entire argument. Dry a couple of loads fewer each week and you save more than switching off every standby light in the house. Take a shorter shower and the number moves. This is dull advice, which is exactly why it works and why nobody sells it to you.
Everything that makes heat costs real money. Everything that makes light or sound costs pennies. Sort your appliances by that one rule and you already know where to look.
The air fryer is cheap, but it was never magic
The air fryer earned its reputation honestly. At about 19.6p a use against roughly 55p for the oven, it is close to two-thirds cheaper for a quick meal, and over a year that is a genuine saving for a household that used to fire up the oven for two fish fingers. We are glad people bought them.
But the saving has nothing to do with the technology and everything to do with size. An air fryer heats a 5-litre box with no preheat. An oven heats a 60-litre cavity and warms up for ten minutes first. Once you are cooking for a family and running three or four air-fryer batches back to back, the oven quietly wins again. The lesson is about volume, not gadgetry: use the smallest box that will do the job, whether that is the air fryer, the microwave or a single hob ring.
Standby and the kettle: the myths that eat your attention
Now the sacred cows. Switching one modern LED telly off at the wall saves somewhere between £4 and £8 a year, which is about the price of a teabag a week. Boiling only the water you need saves pennies, because a kettle costs under 4p a boil to begin with. Neither habit is wrong. Both are rounding errors, and the guilt attached to them is wildly out of proportion to the money involved.
There is a grain of truth worth keeping. Add up every device left on standby across a whole house and it comes to £65 to £100 a year, roughly a tenth of the electricity bill. That is worth a couple of smart plugs on the worst offenders, especially older kit, which can draw ten times what a modern device does. Just keep the scale straight in your head. The collective is worth a look; any single glowing standby light is not.
The one that never sleeps
Spare a thought for the fridge-freezer, the only appliance on the list that never switches off. At around £39 a year it looks cheap, and per hour it is, but it runs every hour of every day for a decade or more. That is the one place where buying efficiency up front pays back, because a poorly rated model quietly adds to the bill for years. When it finally dies, the energy label is worth more than the sticker price.
The lever that beats every habit
Here is the part that undoes half the advice on the internet. The biggest single influence on every number in that table is not how you use the appliance. It is the price of the electricity going into it. The same tumble dryer costs wildly different amounts on a 26p standard rate versus a cheap off-peak window, and moving to a better fixed or time-of-use tariff can save more in an afternoon of admin than a year of switching things off at the wall.
So by all means air-dry the washing and shorten the showers. Those help. But if you only do one thing, check whether you are on the right tariff, because that is the number multiplying everything else.
The one rule this index gives you
Chase heat, ignore glow. Anything that warms air, water or food is where the pounds are, so that is where your effort belongs: fewer dryer cycles, smaller cooking boxes, shorter showers, a smart tariff. The kettle, the telly and the standby lights can keep their dignity. They were never the problem.
How we built the index (methodology)
Costs use the Ofgem electricity price cap of 26.11p per kWh for direct debit customers (1 July to 30 September 2026). Cost per use reflects a typical cycle or session for each appliance at its stated wattage; annual costs assume ordinary household frequency (for example, a few dryer or dishwasher cycles a week) and will vary with model, habits and tariff. The electric heater’s annual figure assumes heavy seasonal use and is shown mainly to frame the hourly rate. Whole-home standby is an estimated range for all always-on devices combined, not a single appliance. These are guidance figures for deciding where to focus, not a personalised bill. Look Into is reader-supported and never paid to recommend a product.
Frequently asked questions
Which household appliance costs the most to run in the UK in 2026?
A plug-in electric heater, at about £2.09 an hour on the 26.11p/kWh cap. Among everyday appliances the tumble dryer tops the list at roughly 98p a cycle and around £153 a year, ahead of the electric oven (about £143 a year) and the electric shower (about £135 a year).
Is an air fryer really cheaper to run than an oven?
Yes for small, quick meals. An air fryer costs about 19.6p a use against roughly 54.8p for an oven, close to two-thirds cheaper. The reason is size, not magic: it heats a 5-litre space with no preheat versus a 60-litre cavity. For big meals needing several batches, the oven can win.
Does turning appliances off standby actually save money?
A little. One modern LED TV switched off at the wall saves about £4 to £8 a year, roughly a teabag a week. Whole-home standby adds up to about £65 to £100 a year, or 6 to 10% of the bill, so a couple of smart plugs on older kit are worth it. No single standby device rivals the dryer or oven.
How much does it cost to boil a kettle in 2026?
About 3.9p per boil on the 26.11p/kWh cap, or roughly £43 a year for a typical household. Boiling only what you need saves pennies, not pounds.
What is the cheapest way to cut my electricity bill?
Target the biggest users: fewer tumble-dryer cycles, the air fryer or microwave instead of the oven for small meals, shorter electric showers. But the largest single lever is your unit rate. A cheaper fixed or off-peak tariff usually beats months of switching things off at the wall.
Sources & further reading
- Selectra, Appliance Running Costs UK 2026 (unit rate, per-use and annual costs)
- Selectra, Air Fryer Running Cost UK 2026 (air fryer vs oven comparison)
- FreePriceCompare, The Real Cost of Standby Power (whole-home and per-device standby figures)
- Ofgem energy price cap (26.11p/kWh electricity, July–September 2026). See ofgem.gov.uk for the current cap.
Look Into is reader-supported. We may earn a commission from qualifying purchases, but we are never paid to recommend a product, and our rankings are decided independently. Figures are guidance, not financial advice. Check the current price cap and your own tariff before budgeting.