Solar photovoltaic panels

Solar photovoltaic panels are made up of solar or photovoltaic cells that convert light energy into electrical energy. Photovoltaic cells have been used in many different areas, for example in rural areas where connections to the main grid are unavailable, satellites that orbit the earth and space probes as well as in household items such as calculators and watches. Photovoltaic panels use renewable energy, to cut carbon emissions, to hopefully reduce global warming.

Photovoltaic panels convert light energy into electrical energy by taking in the energy from the sun or any light that is around it, sending it through an inverter that changes the light energy into electrical energy which is then pumped around the house to power lights and other appliances. In some cases, there is excess energy left over which is then pumped back into the main grid. To get to this point you would need to be using a very small amount of electricity to be able to sell excess electricity.

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There are a lot of problems with powering a home just with solar panels. The biggest problem is cost of installation. An average house in the UK uses between 3300 kilowatts and 4900 kilowatts per annum, the photovoltaic systems that are on the market today produce between 1.5 Kwp and 2 Kwp and they work out at between £4000 and £9000, so even if you had the most expensive system put in you would still need to cut you electricity usage by a possible 50% depending on how much you use. The main way that you could cut the amount of electricity used would be to decrease the amount of waste energy your house produces. The main way to cut your waste energy would be to insulate roofs and wall cavities, installing double glazing, use energy saving light bulbs and switch to high efficiency boilers.
To power a house with photovoltaic panels you can take a variety of paths, the first would be to only have electricity during the day, but there is only a small amount of the population that could live with that. The next possible solution would be to install batteries that could be charged during the day and used over night; the drawback with this method is the cost factor again. The most effective of the possibilities would be to link up to the main grid, sell any excess power that you do not use during the day, and purchase electricity when you really need it.

Solarcentury is the UK’s leading solar energy company, specialising in building integrated photovoltaics. Not only do they have some of the best energy saving photovoltaic panels but they also have solar electric roof tiles, they are integrated in exactly the same way as conventional interlocking tiles but produce 52 watt peak per tile. Not only do they look like a more attractive tile but they can also produce up to 50% of the energy needed to run a household.

This particular project is important to me because, firstly the increase in the amount of carbon emissions, secondly I feel that the best way of living would be, to be able to be totally self sufficient having my house produce enough electricity to live on. The increase of carbon emissions is important to me because of the effect that It has on the environment, such as global warming. Another reason why this is important to me is because the fact that fossil fuels are running out, if we do not change over to renewable energy sources soon, we will find it hard to cope when fossil fuels are exhausted. We need more large projects taking place such as solarcentury’s vast reduction of carbon emissions at Manchester university, totally 18 tonnes reduced per year, with a annual output of 31,000 Kwh.

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http://www.solarcentury.co.uk/products/solar_photovoltaics/c21e_solar_electric_roof_tile_black