| Renewable Sources
|
Non-renewable Sources
|
| These energy sources are virtually inexhaustible and can be replenished after their use by natural process
|
These energy sources are exhaustible and cannot be replenished once used
|
| They are mainly biomass based sources
|
They are developed over a long period due to physical , chemical and biological actions below the earth surface
|
| They are available in unlimited amount in nature
|
They are available in limited amount in nature
|
| They included solar, wind, water, geothermal ,ocean and biomass energy
|
They include fossil fuels like coal, oil, natural gas and nuclear power
|