A solar cell is an alternative energy that uses photovoltaic effect to transform the light energy coming from sun light into electrical energy
. They are readily available in several shapes and sizes on which their voltage specifications is dependent on. The size is directly proportional to the voltage specification and therefore the more is the size, it is effective at producing more voltage. Solar cells are available in various versions, that can work with visible light to infrared light and dependant on the complexity of a solar cell the cost differs. Solar cells are usually available for sale at various web sites and at different shops all over the world.
A single solar cell is generally not capable of delivering the required power which is needed to run a normal home appliance and thus we normally install an array of solar cells in order to make a solar panel which can produce the needed potential difference to run household appliances effectively. Hence the Solar panels are made of solar cells which are the base building blocks of any solar panel.
Solar cells that are available for sale online are usually made available to the buyers at sponsored rates. Although the government offers the solar cells at sponsored rates, the prices of these solar cells are usually out of reach for middle class people.
You could usually find solar cells for sale either over the web or at shops and it should cost you about five dollars per watt. Thus an average household might need to spend around 15000 US$ for the installation of solar cells for the needed power of about 3000 watts. Though the initial investment is very high, this considerably reduces the overall cost which you are going to pay on electricity bills considering that these solar cell once set up, do not need any maintenance for the following 20 years. It provides an eco friendly substitute to electricity in your house.