Ocean Energy Received Renewable Energy Status (Download PDF)

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The Ocean Energy has now been assigned Renewable Energy status by the Union Ministry of New and Renewable Energy (MNRE). Hereafter energy produced using various forms of ocean energy such as tidal, wave and ocean thermal energy conversion (OTEC) will be considered as Renewable Energy.

Image shows of Ocean Energy Received Renewable Energy Status

Image Shows of Ocean Energy Received Renewable Energy Status

Image shows of Ocean Energy Received Renewable Energy Status

Overview

  • India does not have any installed ocean energy capacity and therefore the Ocean energy at present is under-utilized.

  • Few technologies such as wave, tidal, current energy and ocean thermal energy have exploited Ocean energy to a great extent.

  • The potential locations are identified to be at Khambat and Kutch regions of Gujarat.

  • The total potential of wave energy in India along the country’s coast has been estimated to be about 40,000 MW.

  • The theoretical potential of OTEC is 180,000 MW, being mostly subjected to suitable technological evolution.

  • Moreover Kutch and Gulf of Cambay in Gujarat on west coast of the country also show potential for tidal energy production.

Significance

  • Two types of energy can be produced by the ocean namely thermal energy from the sun’s heat, and mechanical energy from the tides and waves.

  • The thermal energy is created by the heat from the Sun which tends to warm the surface of ocean more than the deep ocean water.

  • Among the various applications of Ocean thermal energy, electricity generation is the most important one.

  • The closed-cycle, open-cycle, and hybrid are the three types of electricity conversion systems. To vaporize a working fluid with low boiling point such as ammonia, Closed-cycle systems use the ocean’s warm surface water.

  • The Open-cycle systems at low temperatures boil the seawater.

  • The hybrid systems are a combination of both closed-cycle and open-cycle systems.

  • The sun affects all ocean activity, tides are driven primarily by the gravitational pull of the moon. The waves are driven primarily by the winds.

  • The electricity conversion of both tidal and wave energy usually involves mechanical devices dissimilar to that of the thermal energy.

- Published/Last Modified on: September 17, 2019

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