Why Your Electric Bill Is So High (And 12 Fixes That Actually Work)

Most people treat the electricity bill as weather — something that happens to them. It isn’t. A household bill is the sum of a fairly small number of decisions, and three or four of them account for most of it.

The useful thing to understand first: the biggest users of electricity in a home are the things that make heat. Heating, hot water, ovens, kettles, tumble dryers, electric showers. Devices that don’t make heat — lights, laptops, phone chargers — barely register by comparison.

That single fact tells you where to look, and it’s why “switch off the lights” advice has always been slightly beside the point.

1. Find out what you’re actually paying per unit

Before changing anything, look at your bill and find the price per kWh and the daily standing charge.

Almost nobody knows these two numbers, and without them you can’t tell whether a change is worth making. Everything below is guesswork until you have them.

2. Heat the room you’re in, not the house

If you have any form of zoned or room-by-room control, use it. Heating rooms nobody is sitting in is the largest avoidable cost in most homes.

This is worth more than every appliance change on this list combined.

3. Turn the thermostat down by one degree

One degree is genuinely hard to notice and compounds across every hour of the heating season.

Do it for a fortnight before deciding it doesn’t work. Your perception of “normal” adjusts faster than you expect.

4. Stop the tumble dryer

A tumble dryer is one of the most expensive appliances in a typical home, because it does nothing but generate heat for an hour at a time.

An airer costs a few euros once. Where the weather allows, drying outside is free. Where it doesn’t, drying indoors in a ventilated room still costs nothing but takes longer.

5. Only heat the water you need

An electric kettle filled to the top and boiled for one cup of tea wastes most of what it heats. Fill to the line you need.

The same logic applies to hot water tanks: heating a full tank on a timer when the house is empty is paying to warm water that cools down again untouched.

6. Shorten showers before you change anything else

If your hot water is electric, the shower is likely one of your largest single draws. Two minutes less per person per day, across a household, is a meaningful change and costs nothing.

7. Wash clothes at 30 degrees

Most of the electricity a washing machine uses goes into heating water, not turning the drum. Dropping from 40 to 30 degrees cuts a large share of that.

Modern detergents are formulated to work at low temperatures. Keep hot washes for things that genuinely need them.

8. Run full loads only

A half-full washing machine or dishwasher uses close to the same energy as a full one. Two half loads cost roughly twice what one full load costs, for the same clothes.

9. Check what’s heating an empty house

Immersion heaters and electric heating on timers frequently run while everyone is out or asleep. If your schedule has changed since the timer was set — new job, different hours, kids at school — it’s probably wrong.

This is a five-minute check that people put off for years.

10. Deal with draughts before buying anything

Cold air coming in under doors, through letterboxes, around old window frames and up unused chimneys forces your heating to run longer to hold the same temperature.

Draught excluders and self-adhesive strip are cheap, take an afternoon, and work immediately. Do this before you consider any larger or more expensive measure.

11. Close curtains at dusk

Windows lose heat faster than walls. Closing curtains as it gets dark keeps a measurable amount of heat in the room, and it costs nothing at all.

Open them again during daylight so sunlight does some of the heating for you.

12. Replace what runs constantly, not what runs occasionally

If you’re going to spend money on efficiency, spend it on the things that are always on — a fridge, a freezer, heating — rather than the things used ten minutes a day.

An old fridge running continuously for years is worth replacing. An old toaster is not.

The mistake almost everyone makes

People focus on standby power — the little red lights on the TV and the phone chargers left plugged in.

It is not that standby costs nothing. It’s that it’s a rounding error next to heating, hot water and drying. Unplugging every charger in the house while running the tumble dryer daily is optimising the wrong end of the problem entirely.

Start with heat. Everything else is detail.

The four worth doing first

1. Find your price per kWh. You can’t judge any change without it.
2. Stop using the tumble dryer. Usually the single biggest quick win.
3. Check your heating and hot water timers. They’re often set for a life you no longer live.
4. Fix the draughts. An afternoon and a few euros, and it keeps paying every winter.

Do those four, then look at the rest.