Solar panels use sunlight as a source of energy to generate direct current electricity. A collection of PV modules is called a PV panel. Solar energy can be used to produce electricity in areas without access to the energy grid, to distil water in regions with limited clean water supplies and to power satellites in space.
There are 3 types of solar panels primarily used in the solar industry:
Monocrystalline solar panels.
Polycrystalline solar panels.
Thin film (amorphous) solar panels.
We estimate that a typical home needs between 20 and 24 solar panels to cover 100 percent of its electricity usage. The actual formula to find out how many solar panels you need can be found by the system size divided by the production ratio, divided by panel wattage.