PV - Photovoltaic Systems

Solar PV is a renewable energy system which uses cells to convert sunlight into electricity. The PV cells consist of thin layers of a semi-conducting material, usually silicon, which generates an electric charge when exposed to direct sunlight (rather than heat). The greater the intensity of the light, the greater the flow of electricity.
Solar panels are simple to install and there are many different options available to suit your requirements.

Cables attached to the cells are connected to an inverter which converts the DC (Direct Current) electricity produced to usable AC (Alternating Current) electricity which can be used as power.

The electricity produced by Solar PV can be used to drive any appliance that is powered by electricity.

Cost and maintenance

Prices for PV systems vary, depending on the size of the system to be installed, type of PV cell used and the nature of the actual building on which the PV is mounted. The size of the system is dictated by the amount of electricity required along with the available suitable roof area.

For the average domestic system, costs can be around £5,000- £7,500 per kWp installed, with most domestic systems usually between 1.5 and 3 kWp.

A 2.5kWp array can provide enough electricity to meet around half a household’s electricity needs; this means a saving of around £250 a year.

Grid connected systems require very little maintenance, generally limited to ensuring that the panels are kept relatively clean and that shade from trees has not become a problem.

Solar PV installations should always be carried out by a trained and experienced MCS Certified installer.