Renewable Energy generated from natural sources for human use. Renewable energy is safer,cheaper,healthier and creates many jobs.Also it makes better economic sense.
“Its time to stop burning our universe or planet and start investing in renewable sources all around us”
UN
Secretory General-A.Guterres.
Renewable sources are many as below:
Solar Energy Energy generated from Sun:
Sun
is abundant source of energy to creature on earth.it can be used in various
means for daily life.its an ultimate source of energy for agriculture and
allied activities.
 |
| Fig.Solar Cell |
Solar
thermal energy.
Electricity power stations.
Cooking
food.
Heating
water.
Solar
lightening,specially in public places.
Heating,cooling
and it can be use for better ventilation.
For
transport purpose.
Now
way days portable electricity generator are used in running variety of appliances.
Demerits-
Need lot of space,
No cost effective and
Energy storage is too expensive.
Wind Energy:
Installation
of wind mills for generating electricity. It has highest potential and also biggest source
of natural energy that can be tapped for our daily use.Wind turbines are installed
on shore and off shore based on speed of
moving air or wind.
Hydal
Energy or Hydro Power:
Energy derived from running water from high to lower elevation for running electric generators in mega power stations. Kinetic energy of running water converted into electric form.Its one of cleanest and environmental friendly type of energy.
Geothermal energy:
Energy derived from thermal energy inside earth interior.Means we can genrate energy from hot sprigs,natural water geysers,hot magma,hot dry rocks.this not universal and many hurdles for tapping hidden energy.Now a days its one of reliable source of energy.
Energy from Biomass:
Generating energy from biodegradable waste, crop residue,animal dung and firewood when burnt.is has many limitations.
Ocean thermal energy or Tidal energy:
Generating electricity from running water i e, from high tide waves.means tapping the thermal and kinetic energy of running ocean waves.This also not universal and continuous source of energy.we see may projects worldwide have many limitations.
Fuel cells and hydrogen energy:
Generating power from electro-chemical reactions.Fuel cells can also be used as clean source of energy for generating electricity directly from installed cells for daily consumption.It has may limitations.
 |
| Fig.Fuel Cell |
Co-generation:
Generating two forms of energy from one
source.Its an convenient source of energy.
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