Why is there a need for harnessing non-conventional sources of energy? How can energy be harnessed from the sea in different ways?
There’s a growing need to harness non-conventional energy sources like solar, wind, and ocean energy because conventional sources like fossil fuels are finite, contribute to pollution, and are associated with climate change. The sea offers a rich source of energy through various methods like harnessing tidal energy, utilizing ocean thermal energy, and exploiting wave energy.
Why Non-Conventional Sources are Necessary:
Finite Fossil Fuel Reserves:
Conventional sources like coal, oil, and natural gas are non-renewable and are being depleted rapidly.
Environmental Concerns:
Burning fossil fuels releases harmful greenhouse gases, contributing to climate change and air pollution.
Energy Demand:
The world’s energy demand is increasing due to population growth, urbanization, and industrialization.
Sustainable Development:
Non-conventional energy sources offer a cleaner and more sustainable way to meet energy needs.
Harnessing Energy from the Sea:
Tidal Energy:
Tides, generated by the gravitational pull of the moon and sun, can be harnessed by constructing barrages or turbines to capture the energy of rising and falling tides.
Ocean Thermal Energy:
The difference in temperature between the surface and deeper ocean water can be used to generate electricity. Hot surface water can boil a volatile liquid, which then drives a turbine.
Wave Energy:
The motion of waves can be converted into electricity using various technologies, such as devices that capture wave energy or utilize wave energy to compress air.