Wednesday, November 12, 2008

Sun's Energy - Sustainable Fuel for PV Solar Panels

By Tal Potishman

Solar Photovoltaic cells (Solar PV) are effectively panels that absorb the sun's light (which is actually made of many tiny units of energy) and convert it via a sophisticated system of silicon wafers into an electrical current that can then be used to power up your home, office or electrical appliances directly. Although not yet highly visible in the UK domestic market, solar PV panels are already very common in calculators and watches (albeit in a much smaller size). The larger solar panels are getting increasingly more efficient and are now used to generate power for private homes, large office buildings and other commercial installations.

Solar Photovoltaic and Planning Issues

Solar photovoltaic panels can be installed on the roof, along a wall of the property or as standalone systems. Before buying and installing the panels, however, it is essential to make sure the user understands the installation regulations in the local area. Most domestic installations in England have been cleared for solar PV panel systems and English homeowners can also install the panels as standalone systems, so long as they meet certain criteria (namely avoiding conservation areas or listed buildings). In Scotland, Wales or Northern Ireland, the local governments are still working out the relevant laws. In most cases it is wise to check with your local authority before commissioning the installation of the solar cells.

Should You Use Solar Photovoltaic?

There are several good reasons to use solar PV cells. One important benefit is the money saved on electrical bills. Another important benefit is the reduction in carbon emissions thanks to using clean energy. Solar photovoltaic cells cut around 1.2 tonnes of carbon dioxide emissions every year. Since the user generates the electricity directly from the sun, they are not dependent on the national grid, making them less prone to power cuts. Although solar power is effective in its own right, solar panels are highly appropriate for remote locations where the grid has no coverage (such as remote farms or research facilities).

How is Solar Photovoltaic Cell Installed?

The best way to install solar photovoltaic panels is to hire a professional installation crew. Professional solar PV cell installers should be certified by the Low Carbon Buildings Programme. It is important to note that there are good reasons one should not attempt to do the installation as a DIY project. Solar PV cells tend to be very heavy and, for roof installations, involve a support system that must be constructed and attached before any solar photovoltaic cell can be mounted. The installer will know the local electrical codes and safety regulations and will make sure that the solar photovoltaic grid or standalone units are code compliant.

Finding energy generating technologies that do not depend on fossil fuels is no doubt high on everybody's mind these days. Of the alternative energy options that are available (nuclear, wind, hydrogen, wave, solar), solar is thought to be one of the most practical and reliable solutions, with a proven track record and many installations around the world. - 15790

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