Solar Panels for Your Home — Costs, Savings & Installation (2026 Guide)
Everything you need to know about residential solar panels in 2026 — how they work, current costs, real-world savings, and whether they're right for your home.
How do solar panels work?
Solar panels convert sunlight into electricity using photovoltaic (PV) cells. Modern panels use monocrystalline silicon cells with efficiencies of 20–22%, meaning they generate usable power even on overcast days. The electricity powers your home directly, reducing what you buy from the grid. Any surplus is exported and you're paid through the Smart Export Guarantee (SEG), currently offering rates from 4p to 17.5p per kWh depending on your supplier and tariff.
Are solar panels worth it in 2026?
Yes — and more than ever. Panel prices have dropped 17% since 2023, and all residential installations are VAT-free until at least 2027. Savings depend on your home, energy use and tariff - your free survey gives you a personalised estimate.
Using your own solar power is generally worth more than exporting it, depending on your tariff. Add a battery and SEG income, and total annual savings can reach £1,000–£1,500.
What size system do I need?
The average UK household uses around 3,400 kWh of electricity per year. Panels generate from daylight, so they work in the North West climate; your survey estimates output for your roof. Most homes suit a 3–5 kW system — the 2024 average domestic installation was 4.6 kWp according to MCS data. Today's panels are typically 400–450W each, so a 4 kW system needs just 9–10 panels.
Adding battery storage
A battery lets you store daytime solar power and use more of the electricity you generate. A battery lets you store daytime solar power and use more of the electricity you generate. Battery costs have also fallen — a 9.5 kWh GivEnergy system costs around £4,500–£5,500 installed. Smart tariffs like Octopus Agile can add further value by letting you charge cheaply overnight.
Design your solar system
Choose your options below and see an instant estimate — prices include installation, scaffolding, and MCS certification.
What are you looking for today?
The minimum is 2, average is 10, more than 20 is unusual. You'll need around 20 m² of roof space. A typical 3 bed home has 25m².
Not sure? Pick 'Smart battery' and our team can help — or explore the options.
Prices are indicative estimates for typical UK installations in 2026 and include all labour, materials, scaffolding, and MCS certification. Final pricing depends on your roof, location, and specification. 0% VAT applies to residential installations until at least March 2027.
Ready to get started?
Get a free, no-obligation quote from our team. We'll help you find the best solution for your home.