Save The Earth

There are different sources of energy found in nature which can be harnessed to generate electricity. There are many other ways other than using fossil fuels to produce electricity. These ways are environmental friendly and renewable. Many different sources such as energy from the Sun (solar power), running water (hydro power), wind (wind power), ground (geothermal power) and many, many more can be used to generate electricity. They will be either replaced naturally or there is a large supply of it thus they are called renewable energy.

Renewable energy can meet your energy requirements and at the same time help to prevent Global Warming by reducing greenhouse emmision, thus it is effective and efficient. Some countries are starting to use renewable energy instead of fossil fuels as it contributes to stop global warming and they do not cause pollution. Do you know that 13% of the world total energy comes from renewable energy? Biomass has produced the most amount of energy and hydropower produced the second most amounts. Although it seems that renewable energy is flawless and useful, there are also certain disadvantage such they do not give a constant supply of energy. For example, solar power cannot be generated from solar energy because of cloudy days.

The following are some brief introduction on the different types of renewable sources:

Biomass ----- It is actually recently deceased organic material or even living ones too. It includes animal and plant waste or material, so as long as it can be burnt to replace oil in power plants.

Wind/Solar/Thermal Energy ----- These renewable energies come from nature itself. Though they are clean and green compared to coal, they are very expensive and produce little energy compared to any other coal power plant. Wind energy and solar energy also cannot be used for long as both can only generate power under the right conditions.

Certain plants such as soybeans and rapeseed, etc ----- These plants allow us to convert certain parts of the plant to be used as fuel to replace oil. Though this is much better than using coal or oil, these plants are not yet mass produced are not yet ready to replace oil,

Other gases such as nitrogen and hydrogen ----- These gases are again, still under going research about the whether it can replace oil totally. The problem is that finding hydrogen itself is hard, which means rather than being an alternative to oil, it still needs to transfer energy in order for it to be fuel.