Terrace or small roof
3 kWp (about 7 panels)
Panels on your roof, free power by day, and payments for what you send back. For most houses this is the best value.

Worked examples
3 kWp (about 7 panels)
4 kWp (about 10 panels)
Estimates, not quotes. Prices assume 0% VAT (ends 31 March 2027, then 5%). Bar length is payback against a 45 year scale: a longer bar means a longer wait, and a battery lasts about 10 to 12 years. Plug-in solar figures are Energy Saving Trust, October 2026. See the notes under the full table on the costs page.
Semis, terraces and detached homes all suit solar. In Swale, 33.7% of households live in a semi, 29.8% in a terrace and 23.9% in a detached house (Census 2021). East and west roofs still work, and shade from trees matters more than direction.
Most house roofs in England are permitted development. In a conservation area panels must not be fitted to a wall, balcony or roof enclosure that fronts a highway, and listed buildings need consent. Swale Borough Council supplies records for around 50 conservation areas, so we check your address.
South of Faversham, the villages of Sheldwich and Throwley fall inside the Kent Downs National Landscape on national planning data, and Faversham town centre does not (our own point check). Roof panels are not banned in a National Landscape, but we check the boundary and any listing for your address.
Suppliers must pay a rate above zero for the power you export. The rates we read on 7 October 2026 ran from 3p to 18p per kWh, so your supplier choice matters.
A typical house uses 8 to 12 panels, about 3.5 to 5 kWp. Roof space and your use decide.
The Energy Saving Trust says panels should last 25 years or more. Inverters often need replacing after about 12 years.
Yes. Panels make power on cloudy days, only less. The Energy Saving Trust gives solar payback of about 9 to 12 years across the cities it lists, on July 2026 fuel prices.
There are no dedicated UK Government solar panel grants for most homes, says the Energy Saving Trust. Zero and low-interest loans are planned under the Warm Homes Loan Scheme, and we found no page confirming public availability on 7 October 2026.
Last reviewed 7 October 2026. Estimates only, not quotes. 0% VAT applies until 31 March 2027, then 5%.
Tell us your address and your last 12 months of electricity use. We reply with clear options and prices.