| 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 |