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Solar PV utilises free energy from the sun to generate electricity. It relies on daylight (rather than radiation)

The electricity produced by Solar PV can drive any appliance that is powered by electricity. An inverter (usually situated in the loft) converts the DC current into usable AC current that can be used as power.

A 1.80kW Solar PV System (10 x 180W modules) should produce around 1,693kWh of electricity per annum (this figure may vary, depending on location). To put this into perspective, the average household usage is 9-10kWh per day.

Location of modules

The location of PV modules is vitally important. They must receive the maximum amount of daylight possible, so it is not advisable to install them in situations where surrounding buildings or trees may cast shadows. The best location for a PV solar module is on a south-facing roof or side of a building.

Photovoltaic (PV)

PV technology works by using solar cells or photovoltaic arrays to convert sunlight into electricity. Currently, the biggest market for this technology is Germany, where since the introduction of their feed-in tariff system the Erneuerbare Energien Gesetz (EEG) there has been a huge demand for PV technology. Elsewhere, the PV industry has grown by forty-eight per cent each year since 2002, making it by far the fastest growing energy technology. Historically, PV technology has been used to power spacecraft, in particular satellites but today the vast majority of this technology is used for the generation of power. .

Stand Alone System - Solar PV
Solar Photovoltaic Panels, or Solar PV Panels for short, is a technology in which daylight is converted into electrical power.  It uses energy from the sun to create electricity that will operate electrical appliances and lighting

Solar PV Panels - Photovoltaics
Solar PV panels require only daylight, not necessarily sunlight, and are therefore capable of generating electricity on cloudy days. Solar PV panels work equally well in urban or rural locations. They can be installed on the roof of most homes that can support the equipment and can easily be connected to a building’s electricity supply.

Benefits of Solar PV - Photovoltaics
When in use, Solar PV panels do not generate greenhouse gases or cause pollution. Each kilowatt-peak (kWp) of electricity produced can save approximately 455 kilograms of carbon dioxide emissions compared with electricity generated from fossil fuels.

Available Sunlight for Solar PV Panels - Photovoltaics
The amount of available sunlight in the UK varies with the latitude of the site. The south of the country has more available light than the north. The total annual energy available varies from approximately 1,259 kWh per metre squared per year in the South-West of England to 850 kWh per metre squared per year in Scotland. The light energy also varies during different seasons of the year with more daylight available in the summer than in the winter.

Siting of Solar Integrated PV - Solar Photovoltaic Panels
Solar PV panels can be attached to pitched roofs or flat roofs, fixed vertically onto external walls or located on the ground. They can also be integrated into patent glazing or rain screen cladding systems. They should work efficiently in most locations as long as no part of the panel is shaded from the sun.

Electricity requirements vary depending on the size of your house and how energy-efficient the building and appliances are. With a Solar PV system you will be able to reduce electricity bills because the system will supply some or all of your power rather than mains electricity. If Grant Solar PV is connected through a grid system, it will automatically take electricity from the national grid at times of low generation, for example at night. There is no need to manually switch the system this will be done instantly.