Tuesday, April 17, 2012

Solar Photovoltaic Systems




























Virtually unlimited power is available from the Earth's nearest star, the Sun.  In only one hour, Earth receives more energy from the sun than the entire world uses via electricity during an entire year. Electricity-producing solar panels have only been around for the last half century, however they have yet to completely transformed how we harness solar energy.  Though many have bought into the idea of using solar panels to subsidize electricity in their homes and properties, it is not shifting on enough of a global scale to dial back the amount of damage done to Earth since the industrial era.  Hence the necessity of free solar panels


How do Photovoltaic Systems Work?

Photovoltaic solar modules (solar panels) are composed of multiple, interconnected solar cells, which essentially trap photon energy (from the sun) between layers of silicon wafers. Negatively charged electrons are then knocked loose from their atoms, allowing them to flow freely through the semiconductors. Separate diodes and P-N junctions prevent reverse currents and reduce loss of power on partially shaded panels.

Solar Photovoltaic Systems (i.e. free solar panels)

  1. are reliable, pollution-free, and use a renewable source of energy
  2. help preserve the Earth’s finite fossil fuel resources and reduce air pollution.
  3. allow home owners to add an energy-producing improvement to their property and over time to recover the cost of the system through reduced electric bills, and thereby added savings
  4. makes home owners less vulnerable to future increases in the price of electricity.

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