Solar Panels UK (2026)
Solar panel and home battery prices, sizing and payback — just the numbers.
Solar panel cost UKA typical 4kWp solar panel system costs £5,500–£7,500 installed in the UK. Prices by size, savings and payback using today's rates.Solar payback calculatorWork out how long solar panels take to pay for themselves using your region, roof direction, self-use and the current UK electricity price cap.Solar battery costHome solar batteries cost £3,000–£6,000 installed in the UK for 5–10kWh. See savings, payback and when a battery is worth it.How many solar panels do I need?Most UK homes need 8–12 solar panels (3.5–5kWp). Work out the right number for your electricity use and roof with our free calculator.