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Photo Voltaic panels produce free electricity from the sunshine by changing sunlight to electric power with no relocating parts, zero emissions, and no maintenance. The photo voltaic panel, the 1st component of a Solar Energy System, is a collection of person silicon cells that produce electrical energy from sunlight. The photons (light particles) produce an electrical latest as they strike the surface of the skinny silicon wafers. A simple photo voltaic cell makes only about 1/2 (.5) of a volt. However, a standard 12 volt panel about 25 inches by 54 inches will have 36 cells wired in sequence to produce about 17 volts peak output. If the solar panel can be configured for 24 volt output, there will be 72 cells so the two 12 volt teams of 36 each can be wired in series, normally with a jumper, enabling the photo voltaic panel to output 24 volts. When below 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 boost present potential (more power) and wired in series to boost voltage for 24, 48, or even higher voltage systems. The advantage of making use of a higher voltage output at the solar panels is that more compact wire sizes can be utilised to transfer the electric power from the photo voltaic panel array to the cost controller & batteries.

Monocrystalline solar panels: The most effective and expensive solar panels are made with Monocrystalline cells. These photo voltaic cells use quite pure silicon and include a complicated crystal progress process. Long silicon rods are created which are lower into slices of .2 to .4 mm thick discs or wafers which are then processed into personal cells that are wired jointly in the solar panel.

Polycrystalline solar panels cost: Usually known as Multi-crystalline, solar panels produced with Polycrystalline cells are a tiny significantly less high-priced & marginally significantly less efficient than Monocrystalline cells due to the fact the cells are not grown in one crystals but in a huge block of several crystals. This is what offers them that striking shattered glass appearance. Like Monocrystalline cells, they are also then sliced into wafers to make the personal cells that make up the solar panel.