How do you make a solar pannel?
Question:
Answer:
A Solar panel is a flat collection of solar cells or solar thermal collectors used for converting solar energy into electricity or heat. The term solar panel can be applied to either solar hot water panels (usually used for providing domestic hot water) or solar photovoltaic panels (providing electricity).
History
A solar heater
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A solar heater
In 1839, during the Industrial Revolution, Henri Becquerel discovered the photovoltaic effect, which explains how electricity can be generated from sunlight. He claimed that "shining light on an electrode submerged in a conductive solution would create an electric current."[1]. However, despite extensive research and developments after this discovery, photovoltaic power continued to be very inefficient. As such, photovoltaic cells were used mainly for the purposes of measuring light. Over 100 years later, in 1941, Russell Ohl invented the solar cell, following the invention of the transistor.
Solar photovoltaic panels are frequently applied in satellite power. However, costs of production have been reduced in recent years for more widespread use through production and technological advances. For example, single crystal Si solar cells have largely been replaced by less expensive multicrystalline silicon solar cells, and thin film silicon solar cells have also been developed recently at lower costs of production yet (see Solar Cell). Although they are reduced in energy conversion efficiency from single crystalline Si wafers, they are also much easier to produce at comparably lower costs.
more than you want to know: http://en.wikipedia.org/wiki/solar_cell...
that was easy, wasn't it? 10 seconds.
It's simple!
Each one of the cells give you app. 0.5 Volts D.C. (with full sun) and this voltage becomes low until drops to less than 0.1 V when the light on the face of the cell it's less than 0.25 sun.
Now, assuming that you have full illumination over the cells the only thing to think about it's determine the right amount of tension that you need (12 Volts for example) and put 24 cells in series so you get the right voltage (or more if you use a preregulator in the circuit and you account for the losses if there are no full sun) and secondly how many amperes do you need?
All the cells come for a supply of a specific amount of current so all that you need is divide the current needed times the current supplied by the series and put the number of series of the answer. Plus one for the decimals.
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