Ten practical ways to cut your electricity bill at home
A field guide to the household changes that reliably lower an electricity bill, from standby loads to the kettle, the tumble dryer and the shower.
Most of the advice written about cutting an electricity bill is either too vague to act on or too optimistic about the savings. What follows is the opposite: ten changes, in rough order of effort, that reliably lower a household electricity bill in a typical UK home. We have skipped anything where the saving is swamped by the cost of the kit needed to do it.
One note first. Every “saving” figure depends on the unit price you pay and the hours you leave something running. Rather than quote pounds that go out of date within months, we talk in watt-hours and in share of the bill. To turn those into pounds, multiply by the current unit rate on your own bill.
1. Read the meter, then read it again in a week
Before you change anything, you need a baseline. Submit a meter read today, write the number down with the date and time, then do it again in exactly seven days. The difference, in kWh, is one week of your real usage. Half of it is roughly the amount you would save by cutting your electricity use in half — which nobody can do, but it is a useful ceiling. If you have a smart meter, the in-home display does this for you.
2. Find the standby load
Unplug or switch off at the wall anything that sits on standby when not in use: set-top boxes, printers, games consoles, chargers, the second television nobody watches, the microwave clock. The Ofgem household advice pages list standby loads among the first places to look. In many homes the standby load alone accounts for a small but steady share of the bill. A plug-in energy monitor will tell you which devices are the culprits; most libraries lend them for free.
3. Rethink the kettle
A kettle is one of the highest-draw appliances in a British kitchen, around 2 to 3 kilowatts, so even a short boil uses more energy than a long run of a low-power device. Two habits help. First, only boil what you will use; a kettle filled to the top for one cup of tea wastes most of the energy on water you do not drink. Second, descale the element: a kettle with limescale takes longer to reach the boil. Neither change is dramatic on its own, but across a day of hot drinks it adds up.
4. The tumble dryer is the biggest single win
A conventional condenser tumble dryer is the largest single-appliance electricity load most households have. Air-drying on a rack in a warm room with a window open is free. A heat-pump tumble dryer uses roughly half the electricity of a conventional one for the same load, which is why they cost more to buy. If you cannot change the dryer, two habits help: spin clothes at a high speed on the washer first (a 1,400 rpm spin removes a lot of water), and dry a full load rather than a half load. Half-loading a dryer wastes heat on empty drum.
5. The oven, and what to use instead
A conventional oven draws around 2 to 2.4 kilowatts and takes 10 to 15 minutes to preheat. For small jobs, an air fryer or a microwave uses a fraction of the energy because the volume being heated is far smaller. This does not mean replacing an oven; it means using the right tool for the job. A jacket potato in the microwave then crisped briefly in the air fryer is a tenth of the electricity of a full oven bake.
6. Wash cooler, wash less often
Most of the electricity a washing machine uses goes on heating the water. Dropping from 40°C to 30°C typically cuts cycle energy by about a third, with no change in detergent for everyday loads. Running a full load, not two half-loads, cuts total energy more than any temperature change. Modern detergents are formulated for cool washes; the label will say so.
7. The fridge-freezer: three small changes
A fridge-freezer is on every hour of every day, so small changes compound. Vacuum the coils at the back once a year. Keep the freezer at least two-thirds full; a full freezer holds its temperature better than an empty one (fill the gaps with bottles of water). Check the door seals by shutting a piece of paper in them: if you can pull the paper out easily, the seal is tired and worth replacing.
8. Lighting: finish the job
If every bulb in the house is already LED, skip this. If any halogen or incandescent is still in use, change it when it next fails — or sooner for the one you leave on longest. LEDs use roughly a tenth of the electricity of the halogen bulbs they replace and last for years. Smart bulbs save no more energy than plain LEDs; the saving comes from the LED, not the Wi-Fi.
9. Electric showers and immersion heaters
An electric shower is one of the highest-wattage appliances in the house, often 8 to 10 kilowatts. A four-minute shower uses about half the electricity of an eight-minute one. If your water is heated by an immersion rather than a boiler, time the immersion to run only when you need hot water, not all day on a timer set three decades ago.
10. Draughts cost electricity too
If you have electric heating, every draught is heat you have paid for leaving the house. Half an hour with a tube of frame sealant around skirting boards and under doors pays for itself within a winter in an older house. The Ofgem advice hub and your local council’s housing pages list the current efficiency grants; some are for low-income households, some for solid-wall homes, some for both. Energy Saving Trust guidance is behind a soft paywall at the moment; Ofgem’s version covers the same ground.
Taken together, numbers 2 through 10 will make a measurable dent. Do number 1 again after a month and compare your weekly kWh: that is the honest measure, not the pounds figure on the bill, which also depends on the unit rate.
If the bill is unmanageable regardless, speak to your supplier about a payment plan, and have a look at the GOV.UK summary of help with energy bills. Many households are eligible for the Warm Home Discount and do not realise it.