Renewable and Nonrenewable Energy

      Energy can have many forms such as kinetic, potential, light, sound, gravitational, elastic,

electromagnetic or nuclear. According to the law of conservation of energy, any form of

energy can be converted into another form and the total energy will remain the same. For

example, a labourer when pushes the pile of bags, his potential energy stored inside him is

converted into the kinetic energy from the movement of matter or when you burn the wood

it's chemical energy is converted into the heat energy or when you change your mobile phone

the electrical energy is converted into the chemical energy which gets stored inside the

battery's molecules.

      Energy is broadly classifies into two main groups, renewable and Non-renewable.

Renewable energy is energy which is generated from natural sources like sun, wind, rain,

tides and can be generated again and again as and when required. They are available in plenty

and by far most the cleanest sources of energy available on this planet. For instance, energy

that we receive from the sun can be used to generate electricity. Similarly, energy from wind,

geothermal, biomass from plants, tides can be used this form of energy to another form.

The sun, wind, geothermal, ocean energy are available in the abundant quantity and free to

use but the non-renewable sources of energy that we are using are limited and are bound to

expire one day.

Solar energy can be used during the day time and not during night or rainy season.

Geothermal energy which can be used to generate electricity has side effects too. It also can

bring toxic chemicals beneath the earth surface onto the top and can create environmental

changes.

      Hydroelectric provide pure form of energy but building dams across the river can affect

natural flow and affect wildlife. Next when you use wind energy, you have to rely on strong

winds therefore you have to choose suitable site to operate them. Also, they can affect bird

population as they are quite high.

Non-renewable sources are not environmental friendly and can have serious effect on our

health. They are called non-renewable because they can be re-generated within a short span

of time. Non-renewable sources exist in the form of fossil fuels, natural gas, oil and coal.

    In other word, energy needs to be conserved to protect our environment from drastic

changes, to save the depleting resources for our future generations. The rate at which the

energy is being produced and consumed can damage our world in many ways. In other

words, it helps us to save the environment. We can reduce those impacts by consuming less

energy. The cost of energy is rising every year. It is important for us to realize how energy is

useful to us and how can we avoid it getting wasted.

As a conclusion, we can start saving the energy from our home itself, just by turning off the

lights during day hours, washing clothes in cold water or using public transport instead of

using our own vehicle and later can implement these things on much wider scale at society

level, then at city level then district level and finally at country level.