Solar panel dimensions indicate the length, width, and thickness of the panels, giving you a better indication of how much space they will take up on your roof. Currently, some of the most common solar panel sizes are 350W and 450W solar panels.
Solar panel size indicates the amount of energy that is produced by your system, while solar panel dimensions indicate the physical size of the solar panel. The average 350W solar panel has the dimensions of 190cm x 100cm x 4cm. On average, domestic solar panels weigh somewhere between 18 and 21kg.
This handy solar panel savings calculator lets you know exactly how much solar energy your panels produce on sunny and cloudy days. For residential UK homes, the average solar panel size is generally between 1.6 to 1.8 meters tall and around 1 meter wide.
In the UK, the physical dimensions of a domestic solar panel are typically around 189 x 100 x 3.99 cm (6.2 x 3.28 x 0.13 ft). In addition, the surface area of a solar panel is typically between 1.6 m2 and 2 m2 (17.22 to 21.53 ft2). In the UK, the size of domestic solar panels ranges from 250W to 450W.
With these dimensions in mind and based on the solar panel system size you require, your solar panels will take up more or less space on your roof. As an estimate, a 3kW solar panel system in the UK will require about 16m2 of roof space. A 4kW system will take up around 20m2, while a 6kW one will need somewhere around 32m2.
For an average UK home, a system size between 3kW and 5kW is adequate. This equates to six to twelve panels based on energy consumption. Physical dimensions average 1.7 meters by 1 meter, and a weight of 18-20kg, are also critical for ensuring your roof can accommodate the solar array.