• 9964432222
  • Mail Us
  • Appointment
  • Locate Us
  • Chat Now
  • Courses
  • Login
  • Register
Manifest IAS
JournalsOfIndia
Manifest Learning Academy
  • Home
  • SNIPPETSfor Prelims
  • ARTICLESfor Mains
  • BROWSEBY SOURCE
  • DOWNLOADS
No Result
View All Result
  • Home
  • SNIPPETSfor Prelims
  • ARTICLESfor Mains
  • BROWSEBY SOURCE
  • DOWNLOADS
No Result
View All Result
JournalsOfIndia
No Result
View All Result
Home Environment

Declaration of ocean energy as Renewable Energy

September 23, 2019
in Environment
Reading Time: 3 mins read
0
161
VIEWS
Share on WhatsAppShare on TelegramShare on Facebook
image_pdfMake PDF

Our previous article on same topic

Source: Press Information Bureau

Recently the Union Minister of State for Power and New & Renewable Energy has approved a proposal to declare ocean energy as Renewable Energy.

Accordingly, the Ministry of New and Renewable Energy has clarified to all the stakeholders that energy produced using various forms of ocean energy such as tidal, wave, ocean thermal energy conversion, etc. shall be considered as Renewable Energy and shall be eligible for meeting the non-solar Renewable Purchase Obligations (RPO)

Key highlights about Ocean Energy

Potential of Ocean Energy

  • The total identified potential of Tidal Energy is about 12455 MW, with potential locations identified at Khambat & Kutch regions, and large backwaters, where barrage technology could be used.
  • The total theoretical potential of wave energy in India along the country’s coast is estimated to be about 40,000 MW – these are preliminary estimates. This energy is however less intensive than what is available in more northern and southern latitudes.
  • OTEC has a theoretical potential of 180,000 MW in India subject to suitable technological evolution.

Technology

Although currently under-utilized, Ocean energy is mostly exploited by just a few technologies: Wave, Tidal, Current Energy and Ocean Thermal Energy. 

a)    Tidal Energy

       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.  The Gulf of Cambay and the Gulf of Kutch in Gujarat on the west coast have the locations in the country where the potential exists.

 b)    Wave Energy  

         Wave energy is generated by the movement of a device either floating on the surface of the ocean or moored to the ocean floor. 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.

 c)     Current Energy

         Ocean Current Energy. Ocean current energy can be harnessed using underwater turbines, also known as tidal turbines, to generate power. Similar to wind turbines, the movement of the marine current moves the rotor blades to generate electric power. 

d)      Ocean Thermal Energy Conversion (OTEC)  

         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°C 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.

image_pdfMake PDF
Tags: Prelims

Related Posts

Mahabali Frog

Mahabali Frog

January 25, 2023
Nature Risk Profile

Nature Risk Profile

January 24, 2023
Liquified Natural Gas

Liquified Natural Gas

January 23, 2023
Spot Bellied Eagle Owl

Spot Bellied Eagle Owl

January 20, 2023
A rare species of duck  Sadangman  sighted in Manipur

A rare species of duck Sadangman sighted in Manipur

January 20, 2023
Fossilised dinosaur eggs found in Narmada valley

Fossilised dinosaur eggs found in Narmada valley

January 20, 2023
Global Risk Report-2023

Global Risk Report-2023

January 19, 2023
Asian WaterBird Census 2023

Asian WaterBird Census 2023

January 18, 2023
Remains of four species of dinosaurs found in Chilean valley

Remains of four species of dinosaurs found in Chilean valley

January 17, 2023
Energy Technology Perspectives 2023 report on Green steel

Energy Technology Perspectives 2023 report on Green steel

January 16, 2023
Please login to join discussion

Our Offline Classroom Student

CONGRATULATIONS TO 2021 TOPPERS !!!

Rank 171 Kumar Shivashish
Rank 250 Sahithya
Rank 263 Sumit Kumar Thakur
Rank 311 Deepak Ramachandra Shet
Rank 455 Ravinandan B M

January 2023
MTWTFSS
 1
2345678
9101112131415
16171819202122
23242526272829
3031 
« Dec    

Browse by Category

  • Agriculture
  • Disaster Management
  • Economy
  • Environment
  • Ethics
  • Foreign Affairs
  • Geography
  • Governance
  • History
  • Law & Policy
  • Opinion
  • People in News
  • Places in News
  • Science & Tech
  • Security
  • Society
  • Sports
  • Uncategorized

Browse by Tags

AIR All India Radio BBC Business Line Business Standard dow Down to Earth DownToEarth DTE Economic Times ET FAO Financial Express GS-1 GS-2 GS-3 GS-4 Hindustan Times IE India & the world Indian express Indiatoday India today Kurukshetra Livelihoods portal LiveMint Mains News News Paper Newspaper PIB Prelims PRS India RSTV Science Reporter Survey The Hindu The India Express The Indian Express The Print the wire Times of India TOI TOPPERS Yojana
JournalsOfIndia

Our vision is to orient the readers to grasp the facts objectively and analyse critically. In the rush of reaching first to the readers, the websites miss the balanced opinion, which is the need of the hour. We aim to reach the readers with more crispness, preciseness and relevance. We bring the articles in UPSC way for the civil services aspirants and the Wisest Way for general readers.

Categories

  • Agriculture
  • Disaster Management
  • Economy
  • Environment
  • Ethics
  • Foreign Affairs
  • Geography
  • Governance
  • History
  • Law & Policy
  • Opinion
  • People in News
  • Places in News
  • Science & Tech
  • Security
  • Society
  • Sports
  • Uncategorized

Browse by Tag

AIR All India Radio BBC Business Line Business Standard dow Down to Earth DownToEarth DTE Economic Times ET FAO Financial Express GS-1 GS-2 GS-3 GS-4 Hindustan Times IE India & the world Indian express Indiatoday India today Kurukshetra Livelihoods portal LiveMint Mains News News Paper Newspaper PIB Prelims PRS India RSTV Science Reporter Survey The Hindu The India Express The Indian Express The Print the wire Times of India TOI TOPPERS Yojana

Newsletter

The most important UPSC news and events of the day.

Get Journals daily newsletter on your inbox.

© 2020 JournalsOfIndia - A free initiative by Manifest Team.

  • Login
  • Sign Up
  • Home
  • SNIPPETS
  • ARTICLES
  • BROWSE
  • DOWNLOADS
No Result
View All Result

© 2020 JournalsOfIndia - A free initiative by Manifest Team.

Welcome Back!

Login to your account below

Forgotten Password? Sign Up

Create New Account!

Fill the forms bellow to register

All fields are required. Log In

Retrieve your password

Please enter your username or email address to reset your password.

Log In