Photovoltaic systems

Photovoltaics gives the consumers to be able to generate electricity in way that is clean , reliable and quiet . The system comprises of photovoltaic cells , which has a capacity to convert light energy into electricity directly . Due to the fact that it gets its source of light from the sun , they are known as solar cells . Photovoltaic cells enable the conversion of sunlight directly to become electricity without leading to pollution . It does not lead to air or water pollution . The cells are composed of two layers of materials that are semiconductors As

the light enters the cell , light p-photons get absorbed by the atoms which are semiconductors . This leads to freeing of electrons from the negative layer of the cell , which then flows through the external circuit and then flows back to the layer , which is positive . The flow of the electrons leads to the production of electricity . A photovoltaic system , which is connected to a grid , requires a utility interactive DC to AC inverter (Roger Jerry , 2004

The device has the capability of converting direct current , which is produced by the photovoltaic array into alternative current . This is the electricity , which is needed for loads for example refrigerators , radios and television . There are also Utility interactive inverters , which have built in safety features , which are required by electric utility worldwide

One of the unique characteristic of Photovoltaic systems is that it relies solely on the sun in order to operate . This is advantageous because it does not depend on...