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Renewables

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What’s the Next Energy Revolution? Unconventional Resources or Renewables energy
We live in a futuristic world of cyberspace, genetic engineering and other mind blogging technologies yet when it comes to energy most experts seem to think that our decades old oil and coal based energy systems would barely change. Developments all over the world have already proved them wrong, however the world may soon witness the most dramatic changes in its energy economy in a hundred years.
Energy experts projects that global oil supplies will only meet demand until the global oil production has reached a peak between 2013 and 2020. Declining oil production after peak production would cause a global energy gap to develop, which would have to be bridged by unconventional or renewable energy sources.
Renewable energy refers to energy that occurs naturally and repeatedly in the environment. This can be energy from waves wind, the sun and geothermal heat from the ground. Renewable energy can also be produced from plant sources such as wood or crops grown specifically as fuel.
The existing conventional renewable energy sources are as follows:
Hydropower. Currently, about 3% of the world’s energy is generated by hydropower, or falling water which turns turbines at the bottom of dams to generate electricity. If global energy demand increases, it is unlikely that hydropower’s contribution to the total electricity use will be much more than it is. This is because, most of the great rivers have already been tapped for many uses, and some don’t even reach their mouths. Also, the trend now is to destroy old dams rather than build new dams because of their negative environmental impact. For example, in the U.S. now, many dams are being destroyed to make way for the salmon to once again be able to swim upstream to spawn and thus avoid their own extinction.
Geothermal. Some areas have a…...

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