How many solar panels your home needs depends partly on its size. A one- or two-bedroom property will generally require fewer panels than a large detached house, while the typical three-bedroom UK home may need around eight to 12, depending on the wattage of the panels and how much electricity the household uses.
House type alone cannot give you an exact answer, however. Two similarly sized homes can have very different energy demands, particularly if one has an electric vehicle, heat pump or several people working from home. Your roof’s direction, pitch, shading and usable space will also affect how much electricity a system can generate.
