Home Energy-Saving Tips for 2026

With energy costs remaining high, reducing wasted electricity and heating can make a noticeable difference to household bills. The most effective approach is to understand where your energy is being used, eliminate unnecessary consumption and then consider targeted improvements.

At the time of writing, Ofgem has confirmed that the energy price cap will increase by 4% from 1 October 2026 for a typical dual-fuel household paying by Direct Debit. The amount you actually pay will still depend on your tariff, location and energy use.

Here are the most practical ways to improve energy efficiency in your home.

1. Replace older lamps with LEDs

LED lighting is one of the simplest and most reliable energy-saving improvements.

Modern LED lamps use substantially less electricity than traditional incandescent or halogen alternatives. They also last longer, reducing replacement and maintenance costs.

The Energy Saving Trust estimates that replacing all the bulbs in a typical home with LEDs could save approximately £45 per year in Great Britain.

For the best results:

• Replace frequently used lamps first.

• Select good-quality dimmable LEDs where dimmer switches are installed.

• Use warm-white lamps, typically 2700K–3000K, in living areas.

• Install occupancy sensors in hallways, utility rooms, garages and communal areas.

• Consider daylight sensors for external lighting.

Existing dimmers may need replacing if they are incompatible with LED lamps.

2. Stop appliances consuming electricity on standby

Televisions, computers, games consoles, audio equipment and chargers may continue consuming electricity when left on standby.

According to the Energy Saving Trust, switching appliances off rather than leaving them on standby could save an average household around £45 per year.

Useful solutions include:

• Individually switched extension leads

• Timer-controlled sockets

• Suitable smart plugs

• Automatic standby-reduction devices

• Clearly labelled isolation switches

Do not switch off equipment that must remain continuously powered, including fridges, freezers, alarm systems, medical equipment or essential internet and security devices.

3. Use your smart meter information properly

A smart meter does not reduce consumption by itself, but its in-home display can help identify expensive appliances and changes in usage.

Check the display while using high-load equipment such as:

• Electric showers

• Tumble dryers

• Ovens

• Immersion heaters

• Portable electric heaters

• Electric underfloor heating

• Hot tubs

If your normal background consumption appears unusually high, switch off non-essential appliances one at a time to help identify the cause. Persistent unexplained usage may justify a professional electrical energy assessment.

4. Check your immersion heater controls

Immersion heaters are a common source of unnecessary energy consumption, particularly when faulty controls leave them operating continuously.

Check that:

• The immersion heater is controlled by a working timer.

• The cylinder thermostat is operating correctly.

• The timer matches the household’s hot-water requirements.

• An Economy 7 or time-of-use supply is being used during the correct periods.

• Boost settings are not being left permanently switched on.

• The hot-water cylinder and accessible pipework are adequately insulated.

Smart immersion controls can provide better scheduling, energy monitoring and, where appropriate, integration with solar generation.

5. Improve electric heating controls

Electric heating can be expensive when heaters are poorly controlled or used at the wrong time.

Potential improvements include:

• Programmable room thermostats

• Zoned heating controls

• Modern storage-heater controls

• Smart thermostats

• Individual room schedules

• Open-window detection

• Suitable time-of-use tariffs

Storage heaters should normally charge during the correct off-peak period. Incorrect timers, failed elements or incorrectly configured tariffs can significantly increase running costs.

Heat pumps operate differently from conventional boilers and should generally maintain a steady temperature. Seek advice from the system installer before making major changes to heat-pump schedules or flow temperatures.

6. Control the temperature room by room

The Energy Saving Trust advises that 18°C to 21°C is suitable for most households, although individual health requirements must always take priority.

Use thermostatic radiator valves to avoid heating unused rooms unnecessarily. Bedrooms and occasionally used rooms can normally be maintained at a lower temperature than main living areas.

Closing curtains at dusk, keeping radiators clear and fitting radiator reflectors behind radiators on external walls can also help retain heat.

7. Wash clothes at lower temperatures

For normally soiled laundry, washing at 20°C or 30°C can use less energy than a hotter wash.

Other useful changes include:

• Run full rather than partial loads.

• Use the appliance’s eco programme.

• Dry clothes outside where practical.

• Use a properly ventilated room when drying indoors.

• Avoid using a tumble dryer for very small loads.

• Clean lint filters regularly.

A heated clothes airer generally uses less electricity than a tumble dryer, although adequate ventilation remains important to prevent condensation and mould.

8. Reduce hot-water consumption

Heating water requires a substantial amount of energy.

Simple reductions include:

• Keeping showers to approximately four minutes

• Repairing dripping hot taps

• Turning taps off while brushing teeth

• Using cold water when hot water is unnecessary

• Fitting suitable water-efficient showerheads

• Avoiding excessive hot-water temperatures

The Energy Saving Trust estimates that reducing shower time to four minutes could save the average household approximately £45 per year.

9. Cook more efficiently

Match the appliance to the quantity and type of food being prepared.

Microwaves, air fryers and slow cookers can often use less energy than heating a full-sized oven for a single meal.

You can also reduce consumption by:

• Only boiling the water needed in the kettle.

• Keeping lids on pans.

• Defrosting frozen food in the fridge before cooking.

• Cooking several items together.

• Avoiding repeatedly opening the oven door.

• Keeping fridge and freezer seals clean and intact.

• Defrosting the freezer when excessive ice builds up.

10. Draught-proof and insulate the property

Reducing heat loss will usually have a greater effect than simply increasing heating output.

Priority areas include:

• Loft insulation

• Cavity or solid-wall insulation

• Draught-proofing around doors and windows

• Suspended timber floors

• Uninsulated hot-water cylinders

• Accessible heating pipework

• Loft hatches

• Unused chimneys

The Energy Saving Trust estimates that professional draught-proofing could save around £55 per year, while cavity-wall insulation could save around £200 per year for a typical Great Britain household. Actual savings depend on the property and heating system.

Ventilation should not be blocked when draught-proofing. Trickle vents, extractor fans and other required ventilation must remain operational.

11. Use time-of-use tariffs carefully

Some suppliers offer lower electricity prices during off-peak periods. These tariffs can be particularly useful for households with:

• Electric vehicles

• Battery storage

• Storage heaters

• Immersion heaters

• Heat pumps

• Programmable appliances

Schedule suitable equipment for lower-cost periods, but avoid operating washing machines, tumble dryers or dishwashers unattended or while occupants are asleep.

Compare the complete tariff, including peak rates and standing charges, before switching.

12. Charge an electric vehicle during off-peak periods

A smart EV charger can schedule charging when electricity is cheaper and can help prevent excessive demand on the incoming supply.

Solar-compatible chargers can also divert available surplus generation into the vehicle.

A correctly designed installation may include:

• Dynamic load management

• Off-peak scheduling

• Solar surplus charging

• PEN fault protection where required

• Dedicated circuit protection

• App-based consumption monitoring

Domestic EV charging installations must be correctly designed and verified, including compliance with BS 7671 Section 722.

13. Consider solar panels and battery storage

Solar photovoltaic panels can reduce the amount of electricity purchased from the grid. Battery storage can retain surplus generation for use later in the day and may also charge during cheaper tariff periods.

Before proceeding, assess:

• Annual electricity consumption

• Daytime and evening usage

• Roof orientation and shading

• Available tariff options

• Export payments

• Battery capacity

• Inverter compatibility

• Condition and capacity of the electrical installation

The best system is not necessarily the largest. It should be sized around the property’s real consumption profile.

14. Choose efficient appliances when replacement is necessary

Replacing a working appliance purely to save energy may not always be economical. However, when an appliance reaches the end of its serviceable life, use the energy label to compare models.

Pay attention to the stated annual energy consumption rather than relying only on the letter rating. A larger appliance with a high efficiency rating may still consume more electricity than a smaller suitable model.

15. Arrange a targeted home energy assessment

Where bills remain unexpectedly high, an electrical assessment can identify avoidable consumption and unsuitable controls.

An assessment may include:

• Review of smart-meter consumption

• Lighting efficiency

• Electric heating controls

• Immersion-heater operation

• High-consumption appliances

• EV charging arrangements

• Solar and battery suitability

• Circuit loading

• Electrical safety concerns

• Opportunities for smart control

NOD Electrical Services provides professional electrical assessments and energy-saving upgrades across Streatham and South London.