{"id":5222,"date":"2019-08-23T07:58:36","date_gmt":"2019-08-23T07:58:36","guid":{"rendered":"https:\/\/www.gkseries.com\/blog\/?p=5222"},"modified":"2019-08-23T07:58:37","modified_gmt":"2019-08-23T07:58:37","slug":"rk-singh-approves-proposal-to-declare-ocean-energy-as-renewable-energy","status":"publish","type":"post","link":"https:\/\/www.gkseries.com\/blog\/rk-singh-approves-proposal-to-declare-ocean-energy-as-renewable-energy\/","title":{"rendered":"RK Singh approves proposal to declare ocean energy as Renewable Energy"},"content":{"rendered":"\n

In a decision that would give boost to the ocean energy in India, Union Minister of State for Power and New & Renewable Energy (IC) and Skill Development & Entrepreneurship, Shri RK Singh\u00a0approved a proposal to declare ocean energy as Renewable Energy.<\/p>\n\n\n\n

Daily Current Affairs Quiz 2019<\/a><\/strong><\/p>\n\n\n\n

Accordingly, the Ministry of New\nand Renewable Energy has clarified to all the stakeholders that energy produced\nusing various forms of ocean energy such as tidal, wave, ocean thermal energy\nconversion etc. shall be considered as Renewable Energy and shall be eligible\nfor meeting the non-solar Renewable Purchase Obligations (RPO).<\/p>\n\n\n\n

Background: Ocean\nEnergy<\/strong><\/h3>\n\n\n\n

1.    Introduction\nto Ocean Energy <\/strong> <\/h4>\n\n\n\n

                \nOceans cover 70 percent of the earth\u2019s surface and represent an enormous amount\nof energy in the form of wave, tidal, marine current and thermal gradient. A\nvariety of different technologies are currently under development throughout\nthe world to harness this energy in all its forms. Deployment is currently\nlimited but the sector has the potential to grow, fuelling economic growth,\nreduction of carbon footprint and creating jobs not only along the coasts but\nalso inland along its supply chains. <\/p>\n\n\n\n

           \nAs Government of India steps up its effort to reach the objectives to\ncontemplate its Renewable Energy and climate change objectives post 2022, it is\nopportune to explore all possible avenues to stimulate innovation, create\neconomic growth and new jobs as well as to reduce our carbon footprint. India\nhas a long coastline with the estuaries and gulfs. MNRE looks over the horizon\nat development of new technology and considers the various options available to\nsupport its deployment. Most types of technologies are currently at pre-R&D\n\/ demonstration stage or the initial stage of commercialization. Basic R&D\nis being looked after by the Ministry of Earth Sciences (example: National\nInstitute of Ocean Technology, Chennai). MNRE intends to support demonstration\nprojects of proven technologies and as approved by expert committee constituted\nby MNRE.<\/p>\n\n\n\n

2.    Potential<\/strong> <\/h4>\n\n\n\n
  • Total\n identified potential of Tidal Energy is about 12455 MW, with potential\n locations identified at Khambat & Kutch regions, and large backwaters,\n where barrage technology could be used.<\/li>
  • The\n total theoretical potential of wave energy in India along the country\u2019s\n coast is estimated to be about 40,000 MW \u2013 these are preliminary\n estimates. This energy is however less intensive than what is available in\n more northern and southern latitudes.<\/li>
  • OTEC\n has a theoretical potential of 180,000 MW in India subject to\n suitable technological evolution.<\/li><\/ul>\n\n\n\n

    3.\u00a0\u00a0\u00a0\u00a0Technology\u00a0<\/strong><\/h4>\n\n\n\n

    Although currently under-utilised, Ocean energy is mostly exploited by just a few technologies: Wave, Tidal, Current Energy and Ocean Thermal Energy.\u00a0<\/p>\n\n\n\n

    a)\u00a0 Tidal Energy\u00a0<\/strong>\u00a0<\/p>\n\n\n\n

    The tidal cycle occurs every 12 hours due to the gravitational force of the moon. The difference in water height from low tide and high tide is potential energy. Similar to traditional hydropower generated from dams, tidal water can be captured in a barrage across an estuary during high tide and forced through a hydro-turbine during low tide. The capital cost for tidal energy power plants is very high due to high civil construction and high power purchase tariff. \u00a0To capture sufficient power from the tidal energy potential, the height of high tide must be at least five meters (16 feet) greater than low tide. The Gulf of Cambay and the Gulf of Kutch in Gujarat on the west coast have the locations in the country where potential exists.<\/p>\n\n\n\n

    b) Wave Energy\u00a0<\/strong>\u00a0<\/p>\n\n\n\n

    Wave energy is generated by the movement of a device either floating on the surface of the ocean or moored to the ocean floor. Many different techniques for converting wave energy to electric power have been studied. Wave conversion devices that float on the surface have joints hinged together that bend with the waves. This kinetic energy pumps fluid through turbines and creates electric power. Stationary wave energy conversion devices use pressure fluctuations produced in long tubes from the waves swelling up and down. This bobbing motion drives a turbine when critical pressure is reached. Other stationary platforms capture water from waves on their platforms. This water is allowed to runoff through narrow pipes that flow through a typical hydraulic turbine.<\/p>\n\n\n\n

    c) Current Energy\u00a0<\/strong>\u00a0<\/p>\n\n\n\n

    \u00a0Marine current is ocean water moving in one direction. This ocean current is known as the Gulf Stream. Tides also create currents that flow in two directions. Kinetic energy can be captured from the Gulf Stream and other tidal currents with submerged turbines that are very similar in appearance to miniature wind turbines. Similar to wind turbines, the movement of the marine current moves the rotor blades to generate electric power.\u00a0<\/p>\n\n\n\n

    d)\u00a0 Ocean Thermal Energy Conversion (OTEC)\u00a0<\/strong>\u00a0<\/p>\n\n\n\n

    Ocean thermal energy conversion, or OTEC, uses ocean temperature differences from the surface to depths lower than 1,000 meters, to extract energy. A temperature difference of only 20\u00b0C can yield usable energy. Research focuses on two types of OTEC technologies to extract thermal energy and convert it to electric power: closed cycle and open cycle. In the closed cycle method, a working fluid, such as ammonia, is pumped through a heat exchanger and vaporized. This vaporized steam runs a turbine. The cold water found at the depths of the ocean condenses the vapor back to a fluid where it returns to the heat exchanger. In the open cycle system, the warm surface water is pressurized in a vacuum chamber and converted to steam to run the turbine. The steam is then condensed using cold ocean water from lower depths.<\/p>\n\n\n\n

    4.\u00a0 Technology Objectives<\/strong>\u00a0<\/h4>\n\n\n\n

    \u00a0The objective of the technology programme is to accelerate and enhance support for the resource assessment and deployment of ocean energy in the country and to harness it for power generation and to overcome the barriers. The technology programme is open to public and private sectors to carry out projects in India. Industry lead R&D proposals are invited from stakeholders, for solving problems in Indian conditions. Basic R&D is being looked after by the Ministry of Earth Sciences (example: National Institute of Ocean Technology, Chennai). <\/p>\n\n\n\n

    All the stakeholders desirous of utilizing Ocean Energy are invited by MNRE for demonstration projects of proven technologies under Research, Design, Development and Demonstration (RDD&D) programme\/policy of the Ministry, in force at the time. <\/p>\n","protected":false},"excerpt":{"rendered":"

    In a decision that would give boost to the ocean energy in India, Union Minister of State for Power and New & Renewable Energy (IC) and Skill Development & Entrepreneurship, Shri RK Singh\u00a0approved a proposal to declare ocean energy as Renewable Energy. Daily Current Affairs Quiz 2019 Accordingly, the Ministry of New and Renewable Energy […]<\/p>\n","protected":false},"author":13,"featured_media":5223,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[45],"tags":[570],"class_list":["post-5222","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-current-affairs-articles","tag-ocean-energy"],"_links":{"self":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/5222","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/comments?post=5222"}],"version-history":[{"count":1,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/5222\/revisions"}],"predecessor-version":[{"id":5224,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/posts\/5222\/revisions\/5224"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/media\/5223"}],"wp:attachment":[{"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/media?parent=5222"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/categories?post=5222"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gkseries.com\/blog\/wp-json\/wp\/v2\/tags?post=5222"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}