Solar photo-voltaics (PVs) generate electricity, made from layers of photo-electric material (usually silicon). In sunlight this generates a current, turning sunshine in to power. Producing your own electricity at home is an appealing idea but there is a more to consider than simply ‘plugging in’ some panels.
Most systems are connected to the mains electricity grid, so that whatever energy you don’t use in your home is ‘exported’ and we’ve concentrated on this type of system here – though variations including batteries are also possible.
As with other retrofit measures, careful planning is key to make sure you meet your aims and get good value. This factsheet covers ten things to bear in mind when commisioning and purchasing solar panels.