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Solar 101
Photovoltaic (PV) panels offer a simple, yet an elegant way to convert sunlight into electricity which can be used for any kind of power needs for commercial or residential use; just like electricity from the grid. Millions of PV panels are being used worldwide to produce electricity via this route. PV systems are elegant because they do not have any moving parts and can produce power for over 30 years.

Majority of PV panels in the market with 80% share are made from cells of crystalline silicon, a semiconductor material, which absorb the sunlight, causing electrons to flow through the panels to an inverter (DC to AC) and then through the main electrical panel of the building for usage. The PV panels can be mounted on the roof or ground at any location with direct exposure to sun; preferably pointing to the South direction. PV systems can be used with a battery backup system or simple grid-tied. A grid tie system can utilize sun power in the building as well as send power to the grid to sell to the utility. A battery system provides a back up power source during the nighttime or cloudy days.

PV systems are designed and optimized as per specific energy usage requirements. Installations are done as per local electrical code compliance requirements which are tied to the National Electrical Code (NEC). It is highly recommended that certified PV solar installers be used for safe, energy efficient and reliable installation.
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