Human beings are living on this planet from billions of years. They have suffered to make their lives easier. The humankind has invented millions of appliances and machines to make the lifetime easier and comforting. Some of these machines make use of electricity to fulfill our needs where others use fuel to fulfill the task. Heat and electricity are the most common forms of energy. The moving particles in any substance generate heat. The warmth depends on the movement of the particles. The movement of electrons in a conductor like copper electric wire creates electricity. Besides heat and electricity there are also a number of other energies that we are making use of.

It is easy to convert energy from one form to another. We have to use energy in different products and have to change the type of energy in accordance to the equipment that will make use of it. The transmission of energy is also an issue as the energy is not produced in the place where it is required. Energy can be divided in two basic types:

• Renewable energies

• Non-renewable energies

  
  

The non-renewable forms of energy are the one who exhaust on exploitation, for example natural gas, oil, radioactive elements, coal, etc. the renewable energy is replaceable. The supply is never ending. The energy is extracted from the natural sources in natural manner without spoiling the natural flow. The renewable energy comes from the sun rays, water, wind and many other natural resources. By the virtue of collectors, designed for the purpose, we can store energy from these resources and utilize them for our specific purpose. Such supply of energy will continue to serve us unless or until water (oceans) is flowing, sun is blazing, wind is blowing and trees are growing.

Sun is providing us with extensive amount of energy from the very first day of its dawn. Sun provides us with heat, light, X-ray and radio waves. There are collectors and modules to collect the sun energy and to convert it into different usable forms of energies. Solar energy is a brilliant source of most popular forms of energies that is heat and electricity. For remote use of energy, solar power is getting popularity like agriculture applications such as pasture management and irrigation, tropical states that are detached from electricity grid, for heating swimming pools, telecommunication towers and much more.

The sun light casting upon water and earth cause the air to move above at getting warm, that gives wind which has been one of the best sources of energy from ages. Initially wind was used for carrying ships, grinding grains, pumping water and much more. Today wind is one of the cleanest and renewable sources of energy. Biomass is composed of different forms of energy. Biomass refers to straw, wood, biological waste products, etc. in energy industry as they contain abundant energy. The reserved energy can be released by burning the biomass or by presenting it to micro organisms that can be utilized it to make bio-gas.

Water is used by the mankind for more than 3000 years ago. Hydroelectric dams are created to collect the potential of water. The snow falling and rain provides water to the reserves. Moving water is a renewable and ever lasting source of energy.

The renewable sources are useful as they are cost effective. The non-renewable sources of energy or fossil fuels are getting expensive as the reserves are getting exhausted with increasing usage. Besides, fossil fuels are spoiling the atmosphere as well as the aqua life. On the other hand, the renewable sources of energy are environment friendly and do not affect the natural order of the planet. The sources will never exhaust and will cause no trouble in case the demand will be increased by the passage of time.

It is time that we must start to think about things at larger canvas. It is time that we should realize our duty to the mother earth and change the way we are behaving from ages. The change is only possible if we are ready to rely on the latest techniques and to reject the conventions. Let us come and join hands to save our planet that is the last hope of life of human beings. Advertisement