Solar electricity systems capture the sun’s energy using photovoltaic (PV) cells. The cells convert the sunlight into electricity, which can be used to run household appliances, lighting and can even be sold back to your electricity supplier.
PV cells are panels you can attach to your roof or walls on a southerly facing aspect. Each cell is made from one or two layers of semiconducting material, usually a silicon-based material. When light shines on the cell it creates an electric field across the layers. The stronger the sunshine, the more electricity is produced. This electricity is then transferred to the house where it is plugged into the houses’ electrical supply, supporting or replacing external electricity.
PV cells come in a variety of shapes, sizes and colours, from grey “solar tiles” that look like roof tiles, to panels and transparent cells that you can use on conservatories and glass.
The strength of a PV cell is measured in kilowatt peak (kWp) – that’s the amount of energy the cell generates in full sunlight. The panels once linked together create the kWp output of the system, which for domestic use typically range between 1kWp suitable for a small house, through to 4kWp suitable for a large family house. Our energy advisors will discuss with you the optimum solution for your home, based upon your energy usage, available roof space, and the benefits you are looking to achieve.
*Planning Permission not required: New planning laws recently introduced mean that planning permission is not normally required to attach to existing building, but we can advise on your precise needs when our energy advisors visit.
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