There are many forms of energy we are using but the price of petroleum and its derivatives are constantly rising and we need to find cleaner sources of energy. solar energy has been overlooked in the past mainly because the technology was not developped properly. There hss been some important researches in this field and what seamed far fetched not long ago now makes sense.

Some houses have been built with solar energy as the main source of energy. this technology is not cheap not and need further development but in a near future all our eletric meeds might be fulfilled with solar energy.