Unplugging appliances at the wall saves the average UK household £30–£55 per year on electricity bills
Many homeowners wonder whether the small act of unplugging devices can make a real difference to their energy bills. The answer depends on which appliances you leave on standby and how many you have.
Yes, unplugging appliances at the wall saves the average UK household between £30 and £55 per year on electricity bills, according to the Energy Saving Trust (Energy Saving Trust, 2026). The Trust estimates that standby power accounts for 9–16% of a typical home’s electricity use, costing roughly £30–£55 annually depending on the number of devices and their standby consumption.
This figure assumes a typical three-bedroom household with 15–20 devices left on standby. Your actual savings depend on the specific appliances you own and how often you unplug them. The Energy Saving Trust’s “Powering the Nation” report provides the baseline data: the average standby draw per device is 1–5 watts, with larger items like TVs and set-top boxes drawing 10–20 watts (Energy Saving Trust, 2026).
Which appliances waste the most electricity when left on standby
Not all devices are equal for standby waste. Set-top boxes (Sky, Virgin Media, Freeview) are the highest standby consumers, drawing 15–25 watts each. Ofgem’s “Typical Domestic Consumption Values” (2025) lists set-top boxes as the largest single standby load in UK homes (Ofgem, 2025).
Modern LED televisions draw 1–3 watts on standby, but older plasma or LCD models can draw 8–15 watts (Energy Saving Trust, 2026). Games consoles such as the PS5 and Xbox Series X draw 10–15 watts in standard standby mode, but “instant-on” or “connected standby” modes can draw 20–40 watts (Energy Saving Trust, 2026).
Smart speakers and voice assistants (Amazon Echo, Google Nest) draw 2–5 watts each, but they are often left on continuously. Laptop and phone chargers draw less than 1 watt when not charging, so the savings from unplugging these alone are negligible (Energy Saving Trust, 2026).
Quick numbers standby consumption and savings by appliance type
The table below shows typical standby draw for common appliances and the annual cost at the 2026 average electricity price cap of 28p per kWh (Ofgem, January 2026). The annual cost is calculated as: (watts ÷ 1000) × 8,760 hours × £0.28/kWh.
| Appliance type | Standby draw (watts) | Annual cost at 28p/kWh |
|---|---|---|
| Set-top box | 20W | £49.06 |
| TV (modern LED) | 3W | £7.36 |
| Games console (standby mode) | 15W | £36.79 |
| Smart speaker | 3W | £7.36 |
| Laptop charger (not charging) | 0.5W | £1.23 |
| Microwave with clock | 2W | £4.91 |
Standby draw figures are from the Energy Saving Trust (Energy Saving Trust, 2026). The electricity rate of 28p/kWh is the Ofgem price cap for January 2026 (Ofgem, 2026).
How to measure your own standby electricity use to confirm savings
You can measure the exact standby draw of each appliance using a plug-in energy monitor, available from DIY stores or online retailers. No certification body governs these monitors, but they give a reliable reading in watts.
Alternatively, check the appliance manual or manufacturer website for “standby power” or “power consumption (standby)”, this is typically listed in watts. For a rough estimate, multiply the total standby draw (watts) by 8,760 hours, then multiply by your electricity rate (pence per kWh). You can use your latest bill or the 2026 price cap of 28p/kWh.
The Energy Saving Trust’s “Home Energy Check” online tool can give a personalised estimate based on your household size and appliance list (Energy Saving Trust, 2026).
The direct answer unplugging saves money, but only if you target the right devices
Yes, unplugging appliances at the wall saves money. The average household saves £30–£55 per year, but this requires unplugging high-draw items such as set-top boxes, games consoles, and televisions for at least 8 hours a day.
Simply unplugging phone chargers or small adapters saves less than £1–£2 per year, which is not worth the effort for most households. The biggest single saving comes from unplugging a set-top box when not in use: up to £15–£25 per year depending on the model and how often you use it (Energy Saving Trust, 2026).
To maximise savings, unplug devices that you do not use daily, or use a smart plug with a timer to cut power automatically. At the 2026 price cap of 28p/kWh (Ofgem, 2026), every 10 watts of standby draw costs roughly £24.53 per year if left on continuously.
Eligibility for grants or schemes that cover standby reduction, who qualifies and how to check
No UK government grant specifically covers standby reduction measures such as smart plugs or energy monitors. The Boiler Upgrade Scheme (BUS) and Great British Insulation Scheme (GBIS) focus on heating and insulation, not standby devices.
However, the Energy Company Obligation (ECO4) scheme (2022–2026) may fund smart plugs or energy monitors as part of a broader “whole-house” retrofit, but only for low-income households receiving specific benefits (GOV.UK, 2025). For non-grant households, the simplest way to reduce standby is to buy smart plugs or a standby-saving power strip, costing £10–£30 with no grant needed.
To verify eligibility for any scheme, use the gov.uk “Find energy grants” tool or contact your energy supplier. Under ECO4, your supplier must provide a free home energy audit if you qualify (Ofgem, 2026).
How to verify an installer or product for standby reduction (MCS, TrustMark, and other certifications)
For standby reduction, no specific installer certification is required. You can buy and plug in a smart plug yourself without any accreditation. If you are having a smart home system installed, such as a whole-home energy management system, check the installer is registered with TrustMark, the government-endorsed quality scheme for electrical work on smart controls (TrustMark, 2026).
For any electrical work, such as installing a dedicated standby-switch socket, the electrician must be registered with NICEIC or NAPIT. Verify this via the Electrical Safety Register at electricalcompetentperson.co.uk (Electrical Safety Register, 2026). For smart plugs themselves, look for products with CE or UKCA marking, which indicates they meet UK safety standards. No MCS or Gas Safe certification applies to standby devices.
