PV cells are made from layers of semi-conducting material, usually silicon. When light shines on the cell it creates an electric field across the layers. The stronger the sunshine, the more electricity is produced. Groups of cells are mounted together in panels or modules that can either be mounted on your roof or on the ground.
The power of a PV cell is measured in kilowatts peak (kWp). That's the rate at which it generates energy at peak performance in full direct sunlight during the summer. PV cells come in a variety of shapes and sizes. Most PV systems are made up of panels that fit on top of an existing roof, but you can also fit solar tiles.
Where Will It
Solar tiles are designed to be used in place of ordinary roof tiles, so the system will be installed on top of your houses roof.
An installation for Solar PV can normally take anywhere from 1-3 days but it is normally discussed how long one will take.
What are the
A 4kWp system can generate around 3,800 kilowatt hours of electricity a year in the south of England – roughly equivalent to a typical household's electricity needs. It will save nearly two tonnes of carbon dioxide every year.
If your system is eligible for the Feed-in Tariff scheme it could generate savings and income between £630 and £770 a year.
You will get paid for both the electricity you generate and use, and what you don't use and export to the grid.
An example of solar PV on a domestic property
Cut your electricity bills. Sunlight is free, so once you've paid for the initial installation, your electricity costs will be reduced.
Get paid for the electricity you generate. The UK government’s Feed-in Tariffs pay you for the electricity you generate, even if you use it.
Sell electricity back to the grid. If your system is producing more electricity than you need, you can sell the surplus back to the grid.
Cut your carbon footprint. Solar electricity is green renewable energy and doesn't release any harmful carbon dioxide or other pollutants. A typical home solar PV system could save over a tonne of carbon dioxide per year – that's more than 30 tonnes over its lifetime.