Applied and Natural Science Foundation
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Journal of Applied and Natural Science
An International Journal | Print ISSN: 0974-9411 | Online ISSN: 2231-5209
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Journal of Applied and Natural Science 5 (2): 535-540 (2013)
An overview on green house gas emission characteristics and energy evaluation of ocean energy systems from life cycle assessment and energy accounting studies
Subhashish Banerjee*, L. Duckers and R. E Blanchard1
Department of Business, Environment and Society, Coventry University, Priory Street, CV1 5FB, UK
1Department of Electronics and Electrical Engineering, Loughborough University, Leicestershire, LE11, 3TU, UK
*Corresponding author. E-mail:
Abstract : An analysis has been made as regards emission characteristics of ocean energy systems from life cycle assessment and scope of energy availability from energy accounting studies. Assessment tools developed and standardized were the indices like scope of Green house gases (GHG) emission per kWh power generation, percentage of CO2 saved compared to coal fired power station and the energy payback period. Emission characteristics of ocean energy systems were also compared with that from solar power, bio-fuels and wind energy systems. Four case studies were made comprising of wave energy converters, Ocean Thermal Energy Conversion (OTEC) system and tidal energy. It could be observed that CO2 emission percentage saved from ocean energy schemes were more than 95 per cent; and energy payback period varied between one year and a little higher than two years, depending on the type of the device.

Keywords : Barrage, Energy accounting, Global warming, Ocean thermal energy, Pelamis, Wave dragon.
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