An Introduction to Ocean Renewable Energies by hcj

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									                                  ‫بسم اهلل الرحمن الرحیم‬
                                Physical Oceanography

                            Class Presentation


                                  An Introduction to


    Ocean Renewable Energies

                                   Presented by

                     S. Aboozar Tabatabai
Rutgers, the State University of New Jersey, Institute of Marine and Coastal Sciences
                                    November 2010
Introduction

            Energy…
            Present and Future



                                                                             Federal Agency for Science and Innovation, 2008, Moscow, Russia
U.S. Energy Information Administration , International Energy Outlook 2010




                                                                                                                                  2
 Oil Price: light, sweet
 crude 2008 ($/barrel)




                 U.S. Energy Information Administration , International Energy Outlook 2010




 World primary
     energy
  consumption
(quadrillion Btu)




                                                                                              3
Are we behind?!




   2009 Annual Report, Ocean Energy Systems Implementing Agreement (OES-IA)


           Member countries in Ocean Energy
           Systems Implementing Agreement


   Internationally, the number of developed
ocean energy technologies more than doubled
  from 2003 (35) to 2006 (81). However, the
federal government only acknowledged ocean
renewables in the Energy Policy Act of 2005. 1
                                                                              4
    International Energy Agency, RENEWABLE ENERGY, Market & Policy Trends in IEA Countries, 2004




5
                                             International Energy Agency, Policy Report, 2006

Silver Medal?... Is that the best we got?!                                         6
                Good News !
  Ocean renewable energies have begun to capture
          the attention of US lawmakers…

• More investments

• Some more courses and programs in universities…

• tax credits

• . . . Way to go!

                                                    7
Why Ocean?
• The ocean is the world's largest solar collector and
  can provide huge amount of energy (kinetic and
  thermal) which is absolutely clean (zero CO2
  emission), sustainable, strategic, and predictable.
• Changes in salinity, thermal gradients, tidal sea
  level change and currents, or ocean waves can be
  used to generate electricity.
• The number of ocean energy technology concepts
  has increased to +100 known devices.
• Available global Ocean Energy resource is in the
  same order of magnitude of the present electricity
  production worldwide (even more!).               8
Table compiled from International Energy Agency, Policy Report, 2006
                                                                       9
(Conventional) Tidal Energy




 Technologies for harnessing energy from tides by building barrage across estuary
 are well developed, but this type of conversion process could have significant
 impact on local ecosystem.

                                                                              10
World’s largest tidal power
plant in the Rance estuary
   near St Malo, France




                                Peak rating of 240
                              Megawatts, generated by
                                   24 turbines



                                                11
                                                                      Sihwa, South Korea
                                                                      Under Construction




It will be the world’s largest tidal power plant with a total power
    of 260 MW and an annual power generation of 543 GWh.                            12
Tidal Current Energy




Significant number of technologies for harnessing energy from tidal current are being developed
worldwide. Some of them are at or near full-scale development and undergoing sea trials.




                                                                                   SeaGen


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Rotech Tidal Turbine (RTT)

                             15
     OpenHydro




16
Wave Energy   OWC




                    17
Other wave Devices




                     18
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CETO




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Salinity Gradient Energy




                   The world's first osmotic plant with
                   capacity of 4 kW was opened by Statkraft
                   on 24 November 2009 in Tofte, Norway

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     The world's only Open Cycle OTEC facility at
      Keahole Point on the Kona coast of Hawaii
        (United States Department of Energy)
                                                    (OTEC)
                                                    Ocean Thermal Energy Conversion




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Open-cycle OTEC




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Thank you for your attention.




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