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Article Directory :: Home & Family Articles
In do-it-yourself solar panels, electricity is generated as a phenomenon known as the photovoltaic effect takes place. Whenever electromagnetic radiation falls on the surface of a special semiconductor, a voltage (potential difference) appears across the electrodes. In the case of photovoltaic panels, the radiation involved happens to be visible sunlight.
As you may have realized by now, the (semiconductor) material used is largely responsible for the efficiency of energy conversion -- from sunlight to electricity. As scientists discover better semiconductors and better production techniques, photovoltaic cells become cheaper to produce. And as the demand for solar panels increase, economies of scale drives the price of solar cells to the value we know today.
Recently, many hobbyists are getting interested in building for themselves homemade solar panels. This further reduces the cost of introducing a solar power generator into their house. In fact, most of them are able to gather materials from used and broken solar panels to construct fully working (restored) panels at a tenth of the original cost.
However, before you commit to a do-it-yourself solar panel project, you need to consider what you'll be using it for. Beginners tend to build smaller panels to power their garage lights or garden sprinklers. More experienced enthusiasts often challenge themselves to generate all their household energy needs with several pieces of homemade solar panels installed on rooftops.
If your aspiration is to build a grid-tied or off-grid system for your home, you'll need to determine the size of your solar energy system needed. Then you'll know the type and quantity of batteries to buy and what inverters to use. You'll also need to cater sufficient space in your home to house these electrical items safely.
As many of the DIY solar panels are built from used solar generators, their efficiency may not be as good as off-the-shelf panels fitted with new photovoltaic cells. Therefore it is important to keep the efficiency as high as possible.
This can be achieved by keeping the solar panels as cool as possible. Because efficiency drops as the temperature of photovoltaic cell rises. If your solar panels are installed on the rooftop, you need to ensure sufficient gap between the roof and panels so cool air can pass through to bring away excess heat from the solar panels.
Another way to ensure maximum electricity production is to locate your solar panels at a place with the most sunshine throughout the year. This means the panels should be tilted toward the south (if you're living in the northern hemisphere) and there should be as little shading as possible.
If your location allows you to generate sufficient energy for your household needs, you're in luck. With your own set of do-it-yourself solar panels, electricity cost will no longer be a concern as long as the sun is shining for you. You'll also enjoy shorter payback periods than similar commercial models because DIY solar panels are cheaper.
John Greenspan is an expert in DIY solar panels and has build several solar power generators in his spare time. Are you interested in building DIY Solar panels? Pick up your FREE "How To Build Solar Panels" eBook at => http://www.diysolarpanelsworld.com
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