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Generating electricity from the oceans

Generating electricity from the oceans
Generating electricity from the oceans
Ocean energy has many forms, encompassing tides, surface waves, ocean circulation, salinity and thermal gradients. This paper will considers two of these, namely those found in the kinetic energy resource in tidal streams or marine currents, driven by gravitational effects, and the resources in wind-driven waves, derived ultimately from solar energy. There is growing interest around the world in the utilisation of wave energy and marine currents (tidal stream) for the generation of electrical power. Marine currents are predictable and could be utilised without the need for barrages and the impounding of water, whilst wave energy is inherently less predictable, being a consequence of wind energy. The conversion of these resources into sustainable electrical power offers immense opportunities to nations endowed with such resources and this work is partially aimed at addressing such prospects. The research presented conveys the current status of wave and marine current energy conversion technologies addressing issues related to their infancy (only a handful being at the commercial prototype stage) as compared to others such offshore wind. The work establishes a step-by-step approach that could be used in technology and project development, depicting results based on experimental and field observations on device fundamentals, modelling approaches, project development issues. It includes analysis of the various pathways and approaches needed for technology and device or converter deployment issues. As most technology developments are currently UK based, the paper also discusses the UK's financial mechanisms available to support this area of renewable energy, highlighting the needed economic approaches in technology development phases. Examination of future prospects for wave and marine current ocean energy technologies are also discussed
ocean energy, wave energy, marine currents, tidal stream, tidal energy, hydrokinetic power generation, marine current turbines, wave energy converters
1364-0321
3399-3416
Bahaj, A.S.
a64074cc-2b6e-43df-adac-a8437e7f1b37
Bahaj, A.S.
a64074cc-2b6e-43df-adac-a8437e7f1b37

Bahaj, A.S. (2011) Generating electricity from the oceans. Renewable and Sustainable Energy Reviews, 15 (7), 3399-3416. (doi:10.1016/j.rser.2011.04.032).

Record type: Article

Abstract

Ocean energy has many forms, encompassing tides, surface waves, ocean circulation, salinity and thermal gradients. This paper will considers two of these, namely those found in the kinetic energy resource in tidal streams or marine currents, driven by gravitational effects, and the resources in wind-driven waves, derived ultimately from solar energy. There is growing interest around the world in the utilisation of wave energy and marine currents (tidal stream) for the generation of electrical power. Marine currents are predictable and could be utilised without the need for barrages and the impounding of water, whilst wave energy is inherently less predictable, being a consequence of wind energy. The conversion of these resources into sustainable electrical power offers immense opportunities to nations endowed with such resources and this work is partially aimed at addressing such prospects. The research presented conveys the current status of wave and marine current energy conversion technologies addressing issues related to their infancy (only a handful being at the commercial prototype stage) as compared to others such offshore wind. The work establishes a step-by-step approach that could be used in technology and project development, depicting results based on experimental and field observations on device fundamentals, modelling approaches, project development issues. It includes analysis of the various pathways and approaches needed for technology and device or converter deployment issues. As most technology developments are currently UK based, the paper also discusses the UK's financial mechanisms available to support this area of renewable energy, highlighting the needed economic approaches in technology development phases. Examination of future prospects for wave and marine current ocean energy technologies are also discussed

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More information

e-pub ahead of print date: 12 June 2011
Published date: September 2011
Keywords: ocean energy, wave energy, marine currents, tidal stream, tidal energy, hydrokinetic power generation, marine current turbines, wave energy converters
Organisations: Faculty of Engineering and the Environment

Identifiers

Local EPrints ID: 337031
URI: http://eprints.soton.ac.uk/id/eprint/337031
ISSN: 1364-0321
PURE UUID: 7d0c6480-a460-4c25-ab40-f6bd3607f0bc
ORCID for A.S. Bahaj: ORCID iD orcid.org/0000-0002-0043-6045

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Date deposited: 16 Apr 2012 14:01
Last modified: 15 Mar 2024 02:32

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