Mankind has been familiar with alternative power for a very long time. Alternative power was considered to be a solution to problems of heat and light during early civilisations. People, during earlier times were familiar with solar power and wind power. Many built their houses in a direction where they could get maximum exposure to sunlight. Wind power was used for sailing boats from one shore to another. Thus alternative power was used to meet energy requirements and for transportation.
Today, alternative power is an economical and convenient source of energy that can be used to meet the ever increasing energy demands. A lot of money is being spent for the development of alternative power so that it can be used in a cost effective manner.
The use of alternative power is increasing and is being promoted because it is generated from alternative sources of energy that will never end. Thus alternative power will always be available. It does not affect the environment adversely and it is a cost effective method of power generation.
The reserves of coal and petroleum are declining all across the world. In such a situation, only alternative power can meet the energy demands that were earlier fulfilled by coal and petroleum. This power does not emit harmful gases like carbon monoxide, sulphur dioxide into the atmosphere. It also does not cause pollution as opposed to coal and petroleum.
Alternative power is a clean and reliable source of energy that can be used for several purposes.