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PowerGuardian Recommends
Independent, advice-led reviews of the products that genuinely cut energy bills and keep the lights on — rated across energy saving, value, installation and reliability.
Product categories
Start with the category that matches a problem you actually have. Each links to practical guidance and a calculator so you can estimate the benefit first.
Smart Plugs
Switch appliances on and off remotely, set schedules and stop standby power draining energy overnight.
Best for anyone with always-on gadgets, TVs or chargers left on standby.
Energy Monitors
See exactly what your home is using in real time so you can spot the appliances quietly pushing up your bill.
Best if you want to understand your usage before changing anything.
Smart Thermostats
Control heating room-by-room and by schedule so you only heat your home when and where you need it.
Best for homes with gas central heating and inconsistent routines.
Draught Proofing
Low-cost strips, brushes and covers that seal gaps around doors, windows and letterboxes to keep heat in.
Best first buy for older or draughty homes — cheap and high impact.
Heating Controls
Thermostatic radiator valves, timers and zoning kit that give you finer control over where your heating goes.
Best for larger homes or rooms you rarely use.
Power Cut Essentials
Battery packs, lights and backup kit to keep essentials running and stay safe during an outage.
Best for rural areas, medical needs or storm-prone regions.
EV Charging Accessories
Cables, tethered adaptors and scheduling gear that make home charging cheaper and more convenient.
Best for EV owners charging at home on an off-peak tariff.
Solar Accessories
Monitoring, diverters and battery add-ons that help you use more of the free energy your panels generate.
Best for homes with solar panels wanting to maximise self-use.
Before you buy
A little planning stops you spending on kit that won't move the needle.
Check your energy usage first
Read your smart meter or a plug-in monitor for a week. You can't cut what you haven't measured.
Calculate likely savings
Use our free calculators to estimate the payback before you spend — some gadgets never pay for themselves.
Avoid gadgets that don't solve a real problem
If a device doesn't change your behaviour or reduce waste, it's a novelty, not a saving.
Prioritise the fundamentals
Insulation, heating control and monitoring almost always beat novelty smart devices for real savings.
Related calculators
Estimate real savings before you spend a penny.
Common questions
Do energy saving products really reduce my bills?
Some do, when they solve a real problem — draught proofing, heating controls and monitors typically pay back fastest. Novelty gadgets rarely make a measurable difference. Always measure your usage and estimate savings before buying.
What's the best first purchase for an average UK home?
Draught proofing and a simple energy monitor. They're inexpensive, help you understand where energy is going, and the savings usually cover the cost within a season.
Are smart thermostats worth it?
They can be if your routine is irregular or you often heat empty rooms. In a small, well-run home the savings are smaller. Use our Home Energy Efficiency Score to gauge the likely benefit first.
Do I need power cut essentials?
It depends on where you live and your needs. Rural, storm-prone areas and homes with medical equipment benefit most. Check your risk with our Power Cut Risk Checker before buying backup kit.
Does PowerGuardian sell these products?
No. PowerGuardian is an independent UK energy information service. Some pages contain Amazon affiliate links and we may earn a commission if you buy through them, at no extra cost to you — but recommendations always stay advice-led.
Keep exploring
Advice and tools that pair well with energy saving products.