How to Reduce Your Electricity Bill: 10 Practical Tips

The average UK household spends around £800 a year on electricity alone. Most of that goes on a handful of appliances and habits, which means small, targeted changes can make a real difference. Here are ten practical tips, roughly ordered by impact.

1. Switch to a cheaper tariff

This is the single biggest lever most households have. The difference between the default standard variable tariff and the cheapest fixed deal can be £100–£200 per year. Check comparison sites quarterly. Switching takes minutes and suppliers handle the changeover.

2. Find and kill phantom loads

Many devices draw power even when "off." TVs, games consoles, phone chargers, and set-top boxes can collectively add £50–£80 a year in standby consumption. The only way to know which devices are the worst offenders is to measure them.

A smart plug with energy monitoring, like the ones included in a Reveal kit, lets you see exactly how much each device draws on standby. You might be surprised: some older set-top boxes draw 15–20W continuously, costing £40+ a year while doing nothing.

3. Switch to LED bulbs

If you still have halogen spotlights, replacing them with LEDs is one of the fastest payback upgrades available. A 50W halogen replaced by a 5W LED saves about £12 per year per bulb at current rates. Most households have 10–20 downlights, so the savings add up quickly.

4. Use heating timers and smart thermostats

Even if your heating is gas-fired, the controls use electricity, and running heating when nobody's home is pure waste. A properly configured timer or smart thermostat can cut heating bills by 10–15%. If you have electric heating, this becomes even more important.

5. Wash at 30°C

Modern detergents work effectively at 30°C. Dropping from 40°C to 30°C reduces the energy used per wash cycle by roughly 40%, because most of the electricity goes to heating the water. Over a year of regular washing, that's £20–£30 saved.

6. Air dry clothes when possible

As we covered in our tumble dryer cost breakdown, a condenser dryer can cost £1.20–£1.50 per cycle. Skipping even one or two cycles a week by using a clothes airer or outdoor line saves £60–£150 a year. In summer, this is an easy win.

7. Use a time-of-use tariff

Tariffs like Economy 7, Octopus Agile, or Octopus Go offer cheaper electricity during off-peak hours (typically overnight). If you can shift energy-intensive tasks (dishwasher, washing machine, tumble dryer, EV charging) to those hours, you could cut costs on those appliances by 30–50%.

Reveal shows your energy usage over time, making it easy to see whether you're actually using power during cheap-rate periods or not.

8. Insulate and draught-proof

This primarily reduces heating costs, but if you use electric heaters, a fan, or air conditioning, better insulation means less electricity spent maintaining comfortable temperatures. Draught-proofing doors and windows is cheap (often under £50 for a whole house) and can save £25–£50 per year.

9. Turn off standby properly

Standby and phantom loads (tip #2) overlap, but this tip is about habit: switch things off at the wall rather than by remote. A switchable power strip for your TV, soundbar, and console makes this easy: one switch cuts all three devices to zero watts.

10. Monitor with a live dashboard

This is less a specific tip and more a force multiplier for all the others. Research consistently shows that households who can see their energy consumption in real time reduce usage by 5–15%, simply because the feedback loop is immediate.

Reveal puts a live energy dashboard on a dedicated tablet in your home. You see per-device costs, daily totals, and trends over time. It turns abstract kilowatt-hours into pounds and pence, which makes it much easier to stay motivated.

The bottom line

You don't need to do all ten at once. Start with the highest-impact changes (switching tariff, killing phantom loads, and swapping halogens for LEDs) and work down the list. The key insight is that you can't reduce what you can't measure. Understanding where your electricity goes is the first step to spending less on it.