How do photovoltaic solar panels and cells work?
SunPower Solar Panel Technology
Here is NASA's very concise description of how photovoltaic solar panels work:
"When light energy strikes the solar cell, electrons are knocked loose from the atoms in the semiconductor material. If electrical conductors are attached to the positive and negative sides, forming an electrical circuit, the electrons can be captured in the form of an electric current -- that is, electricity."
Solar cells may all work on the same principle; however, they are defintiely not all created equal. Bestway Mechanical chooses to use SunPower solar panels for our solar pv system installs because we believe in their superior design.
Conventional solar cells corrode over time from being exposed to elements under the harsh conditions on the roof. SunPower solar cells, by comparison, have thick connectors and a copper backing that resist temperature changes. Their unique structure also maintains the system's integrity even when bent.
As if durability weren't enough, SunPower has even improved the production power of their cells. The smooth surface absorbs the maximum amount of light as compared to the ridged surface of conventional cells. SunPower has eliminated the most common causes of cell failure with their revolutionary technology.