How to Reduce Your Electricity Bill in the UK: Price Cap, Standing Charge and Appliance-Level Fixes

To reduce your electricity bill in the UK, first understand what you are paying for: a unit rate for each kWh you use and a fixed daily standing charge. You can lower the first by using less and by being on the right tariff; the second only changes with your tariff. Then cut use where it matters most: anything that heats water or air, appliances that run all day, and devices wasting power in standby. Measuring appliance by appliance shows you which changes are worth making.

Step 1: understand your bill

Your electricity bill has two parts.

The unit rate is what you pay per kilowatt-hour (kWh). Under Ofgem's price cap for 1 October to 31 December 2026, the average is 26.32p per kWh for Direct Debit customers in England, Scotland and Wales.

The standing charge is a fixed daily fee for being connected, whether you use any electricity or not. The cap average for the same period is 54.83p per day.

Both vary by region and by payment method; Ofgem publishes regional unit rates and standing charges. The cap limits these rates on default (standard variable) tariffs. It does not limit your total bill, which depends on how much you use.

There is also a temporary change to know about: the government has removed VAT from domestic electricity bills from 1 October 2026 to 31 March 2027, which it says saves households an average of £45 a year (GOV.UK). Gas still carries 5% VAT.

What a typical bill looks like

Ofgem's current typical consumption figure for a medium-use home is 2,500 kWh of electricity a year. Using the cap averages above as an illustration:

• Usage: 2,500 kWh × £0.2632 = £658.00
• Standing charge: 365 days × £0.5483 = £200.13
• Total: about £858 a year for electricity

That split matters. In this example, roughly three-quarters of the bill depends on how much you use, and around a quarter is fixed. Cutting use reduces the larger part, but no amount of switching things off will touch the standing charge.

Step 2: know your own numbers

Before changing anything, find:

1. Your unit rate and standing charge, from your latest bill or your supplier's app.
2. Your annual electricity use in kWh, usually on your annual statement. Compare it with Ofgem's 2,500 kWh medium figure; if you are well above it with a similar-sized home, there is probably something to find.
3. Your baseload, if you have a smart meter: the live figure on your in-home display late at night when nothing obvious is on. Multiply the watts by 8.76 for kWh a year. A high baseload points to always-on waste.
4. Your tariff type: standard variable (capped), fixed, Economy 7 or another time-of-use tariff.

If you do not have a smart meter, our guide to smart plug vs smart meter explains what each can tell you.

Step 3: check your tariff

Using less is only half the picture. The price you pay per unit matters just as much.

• Compare fixed deals with the cap. A fixed tariff can be cheaper or more expensive than the capped rate; compare unit rate and standing charge, not just the headline annual estimate.
• Look at your payment method. Ofgem publishes different cap levels for Direct Debit, standard credit and prepayment.
• Consider time-of-use tariffs carefully. Economy 7 and newer time-of-use tariffs charge a lower rate at certain hours and a higher one at others. They suit homes that can shift a lot of use (storage heaters, hot water, an electric car, laundry) into cheap hours, and can cost more if most of your use is at peak times.
• Check whether the standing charge is high for your use. For a low-use home, the standing charge is a large share of the bill, so a tariff with a lower standing charge and a slightly higher unit rate can work out cheaper. Do the sums with your own figures.

Step 4: cut use where it matters

The Energy Saving Trust estimates that washing machines, dishwashers and tumble dryers together make up around 14% of a typical household's energy bill, and fridges and freezers around 13% (Energy Saving Trust). If you have an electric shower, electric heating or an immersion heater, those may be bigger still. Our guide to what uses the most electricity at home ranks the usual suspects.

An appliance-level checklist

1. Wash cooler and fuller. Most of a washing machine's energy goes on heating water; lower temperatures and full loads cut it.
2. Dry outdoors or on a rack when you can. A tumble dryer heats air for an hour or more per load.
3. Shorten electric showers. Every minute counts on a high-power shower.
4. Boil only the water you need. Kettles draw high power; less water means less time.
5. Put portable heaters on a timer. Heat the room you are in, for the hours you are in it. Only use a timer or smart plug rated for the heater's power, plugged directly into the wall.
6. Check fridge and freezer settings and seals. Keep them away from ovens and radiators, and defrost freezers that ice up.
7. Question the second fridge or freezer. An older one in a garage can cost more than you expect. Measure it.
8. Switch off standby on groups of devices. The Energy Saving Trust estimates around £45 a year for an average household in Great Britain. Our standby power guide shows how to find the worst offenders.
9. Shut computers down rather than leaving them idle. Idle can draw far more than standby.
10. Swap remaining old bulbs for LEDs in the lights you use most.

What changes are worth: hypothetical examples

All costs at 26.32p per kWh. Your figures will differ; the method is what matters.

For the full method with more examples, see how to calculate appliance running cost.

Step 5: measure, change, measure again

The most common reason saving efforts fail is guessing. A focused approach works better:

1. Pick the three appliances most likely to matter in your home.
2. Measure each for a normal week (smart plug or plug-in meter for plug-in appliances; meter readings for hard-wired ones).
3. Work out the yearly cost of each.
4. Make one change per appliance.
5. Measure another week and compare.
6. Keep the changes that worked and move on to the next appliance.

If you are struggling to pay

If your bills are unaffordable, contact your supplier first and ask about payment plans and any support schemes they run. Citizens Advice can also help, and if you or someone in your home is elderly, disabled or has a medical condition, ask your supplier about the Priority Services Register.

Common mistakes

• Focusing only on usage. Check your tariff and payment method too.
• Chasing tiny savings. Unplugging phone chargers matters far less than shortening heater, dryer or shower time.
• Assuming the price stays the same. The cap is reviewed every three months, and the VAT change is temporary. Recalculate with your current rate.
• Switching off things that must stay on. Fridges, freezers, heating controls, alarms and medical equipment.

Where Wattly fits (and where it doesn't)

The Wattly smart plug comes in a UK Type G (BS 1363) version rated 13 A. It shows live watts, cost per hour, day, week and month, and usage history in the Tuya Smart app, so you can measure a fridge-freezer, dryer or entertainment setup for a week and see what it really costs. Schedules, countdown timers and remote on/off let you act on what you find, and schedules keep running on the plug even if your internet drops.

It won't reduce your standing charge, measure hard-wired appliances such as electric showers, ovens and immersion heaters, or save anything unless you act on what it shows. For high-power appliances, never exceed its 13 A rating. Details are on the product page.

Related reading

• What uses the most electricity at home
• Do smart plugs save money?
• Space heater running cost
• Smart plug vs smart meter