How Are Solar Panels Designed

Solar photovoltaic system or solar power system is one of renewable energy system which uses pv modules to convert sunlight into electricity.

How are solar panels designed.

Solar panel output is expressed in units of watts w and represents the panel s theoretical power production under ideal sunlight and temperature conditions. Solar panels consist of silicon cells connected in an array mounted on a rigid metal frame. Simply put a solar panel works by allowing photons or particles of light to knock electrons free from atoms generating a flow of electricity. The electricity generated can be either stored or used directly fed back into grid line or combined with one or more other electricity generators or more renewable energy source.

The large black solar panels you see on homes and businesses are made of a bunch of solar cells or photovoltaic cells made of silicon semiconductors that absorb sunlight and create an electric current. A solar or photovoltaic pv module generally consists of 36 interconnected cells laminated to glass within an aluminum frame. Each rectangular matrix is laminated onto glass and quickly becomes a larger panel. Solar panels actually comprise many smaller units.

Solar cells are made out of silicon wafers. Typically solar panel systems are designed to cover 100 or less of annual usage to maximize the financial benefits but if you are planning to increase your energy use in the near future for example if you are planning to buy an electric car or converting from oil to electric heat pumps you might consult with your solar consultant to estimate your expected energy demand in order to design a system that better matches that use profile. When light passes through these solar cells they set the electron present in them to move this effect is known as a photovoltaic effect. The frames mostly made from aluminum provide the rigidness required to keep with the harsh environment.

All solar panels are rated by the amount of dc direct current power they produce under standard test conditions. These individual cells are connected together to make one solar panel. First there s the panel itself.