Solar Panels

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1. Monocrystalline / Semi-flexible Produced from a single silicon ingot. Use widely in the pass. More efficient and less space taking. Life span of 25 years or more. Price is higher due to more complicate in production process. Not popular in the market due to the higher price.

2. Polycrystalline Manufactured from cast to a block of multi-crystalline silicon. Commonly use now due to the easy manufacturing process and thus cheaper in cost. Slightly less efficient than monocrystalline module. Claim to have the same life span as mono cell.

3. Thin Film / Flexible New technology applying silicon on glass or stainless steel. Can be used to build the building exterior and roof top. Less efficient compare in area but work better in dim light condition thus generate 20% more power. Armosphous is the common material in thin film solar panel. Not commonly use due to the lower efficient with big ara size. CIGS is the higher efficient solar panel comparable to polycrystalline cell. Price is highest of all.

Nevertheless, the solar panel are priced on the basis of the power that it can produce. The solar panel is tested at a optimum light condition and get the output power (rated power). Regardless of the size of the panel, the customer will pay for the value of the output power (W) at $ per W. Thus although the mono-crystalline solar panel is more efficient than poly-crystalline solar panel, the size is generally smaller and the power remains the same.

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