main content Solar electricity (Photovoltaic's)

Photovoltaic cells are used to convert daylight into electricity. This reduces the need to exploit fossil fuels and the impact you have on the environment.

A photovoltaic system is made up of:

• Panels fitted on your roof to convert energy from the sun to electricity
• A wiring system to connect to your electricity system in your house

The panels consist of a number of photovoltaic cells made from semi-conducting material, which is usually silicon. These cells have a special property that converts the sun’s rays into electricity. This special property, the photovoltaic effect, was discovered in the 19th century and was developed for space travel in the 1950’s.

Is my home suitable?

You will need an un-shaded roof that is preferably southeast or southwest facing.

By installing a photovoltaic system you can:

• reduce your fuel bills
• provide approximately 50% of your electricity needs
• cut your home’s carbon dioxide emissions
• reduce your reliance on fossil fuels

The systems are expected to last 30 years or more, need little maintenance and are very reliable.

Smaller Photovoltaic systems, such as PV powered lights and fountains, can be brought at large DIY stores.

The Government scheme ‘Low Carbon Buildings Programme’ is designed to help with cost of installing photovoltaic cells.

Contacts

Energy Saving Trust Advice Centre for London
Telephone: 0800 512012
E-mail: advice@est-london.org.uk
Website: www.energysavingtrust.org.uk/london