Is solar, a battery or a heat pump worth it for your home?
PowerGuide compares the solar panels, home batteries, heat pumps, plug-in balcony kits and portable power stations you can actually buy in the UK: what they cost, what they save, and which ones are worth the money. Independent, and free to use.
Prices and tariff rates last checked October 2026.
What are you thinking of buying?
Solar
Panels, inverters and what a rooftop system costs and saves
18 products comparedBalcony Solar
Plug-in kits you fit yourself, for flats, renters and anyone without a roof to fill
30 products comparedHome Batteries
Charge on cheap overnight electricity and run the house at peak, with or without solar
8 products comparedPower Stations
Portable batteries with plug sockets, for camping, vans and power cuts
24 products comparedHeat Pumps
Air and ground source models, running costs, and the £7,500 grant
8 products comparedAir Conditioning
Portable units and fixed splits, sized for your room
23 products comparedEnergy Tariffs
Agile, Go, Cosy and Flux rates for your region, and when each one is not worth it
0 products comparedWork out what it would cost you
Free calculators that use current UK prices and Ofgem's price cap. Change the figures to match your home and nothing gets saved or sent anywhere.
- Solar payback calculator What panels on your roof would save each year, and how long until they have paid for themselves
- Battery sizing calculator What size battery your home would actually use, and what it would save on a cheap overnight tariff
- Balcony solar savings calculator What a plug-in kit on your balcony or patio would knock off your bill
- Heat pump running cost calculator Whether a heat pump would cost more or less to run than your gas boiler
- Air con sizing calculator What size unit your room needs, so you do not overpay or under-cool