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Solar panels produce free power from the solar by changing daylight to electrical power with no shifting parts, zero emissions, and no maintenance. The solar panel, the first component of a Solar Power System, is a collection of specific silicon cells that produce electrical energy from sunlight. The photons (light particles) generate an electrical current as they strike the surface of the skinny silicon wafers. A simple photo voltaic cell generates only about 1/2 (.5) of a volt. However, a normal 12 volt panel about 25 inches by 54 inches will have 36 cells wired in sequence to make about 17 volts peak output. If the photo voltaic panel can be configured for 24 volt output, there will be 72 cells so the two 12 volt teams of 36 every can be wired in series, generally with a jumper, enabling the solar panel to output 24 volts. When underneath load (charging batteries for example), this voltage drops to 12 to 14 volts (for a 12 volt configuration) ensuing in 75 to 100 watts for a panel of this size.

Multiple solar panels cost can be wired in parallel to increase present capacity (more power) and wired in collection to enhance voltage for 24, 48, or even higher voltage systems. The advantage of employing a increased voltage output at the solar panels is that more compact wire sizes can be utilised to transfer the electrical energy from the photo voltaic panel array to the cost controller & batteries.

Monocrystalline solar panels: The most successful and pricey photo voltaic panels are manufactured with Monocrystalline cells. These solar cells use quite pure silicon and include a complex crystal expansion process. Prolonged silicon rods are created which are slice into slices of .2 to .4 mm thick discs or wafers which are then processed into individual cells that are wired jointly in the solar panel.

Polycrystalline solar panels cost: Frequently referred to as Multi-crystalline, solar panels manufactured with Polycrystalline cells are a tiny significantly less costly & marginally significantly less productive than Monocrystalline cells simply because the cells are not developed in one crystals but in a big block of many crystals. This is what gives them that striking shattered glass appearance. Like Monocrystalline cells, they are also then sliced into wafers to generate the specific cells that make up the solar panel.