Solar Power
The basic building blocks of a PV solar system are individual cells containing a semiconductor, such as silicon. When light strikes the cell, electrons are knocked loose from atoms creating an electric current. In physics, this is called the photovoltaic effect. Solar cells are commonly employed in calculators and watches.
Several cells can be connected to form modules or panels. Panels are frequently positioned on rooftops of houses and office buildings.
Panels, in turn, are connected to form arrays that are mounted above the ground on frameworks or pedestals, designed to hold the panels at a 20-30 degree angle that maximizes direct sunlight through the course of a day. Arrays can be connected to the electric grid for purchase by utilities. PV systems are a reliable source of power, durable and easy to maintain. Even on overcast days they produce about 80% of their peak capacity.
