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Tidal energy: a promising future resource for Tasmania


Green, S and Cossu, R and Penesis, I and Nader, J-R, Tidal energy: a promising future resource for Tasmania, Proceedings of the 3rd Asian Wave & Tidal Energy Conference, 24-28 October 2016, Singapore, pp. 891-898. ISBN 978-981-11-0782-5 (2016) [Refereed Conference Paper]

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Batman Bridge (Tamar Estuary) and Swan Island (Banks Strait) in Northern Tasmania, Australia have previously been identified as potential tidal energy extraction locations [1]. Measurements with a bottom-mounted acoustic Doppler current profiler (ADCP) over two tidal cycles at each location were analysed to estimate the energy potential. The Batman Bridge data showed good symmetry between flood and ebb tides, both achieving maximum velocities over 2.4 m/s at approximately 180° out of phase. These characteristics allow the Batman Bridge site to meet average energy demand for 180 Tasmanian homes. This site also exhibits characteristics equivalent to those at existing tidal sites such as Paimpol-Bréhat, and from this, offers an exciting resource for Tasmania to harness.

The Swan Island site characterisation revealed a mean velocity of 0.81 m/s occurring during flood tide which is approximately 25% stronger than the ebb tide with 0.64 m/s. A maximum velocity of 1.79 m/s was recorded, yet, the mean power density only reached 0.2 kW/m2. This region does not exhibit energetic enough characteristics, however comparisons to works completed show great potential for the greater Banks Strait region to be further investigated.

Item Details

Item Type:Refereed Conference Paper
Keywords:ADCP, site characterisation, tidal currents, renewable energy, Tamar River, Swan Island, Banks Strait, Tasmania
Research Division:Engineering
Research Group:Maritime engineering
Research Field:Ocean engineering
Objective Division:Energy
Objective Group:Renewable energy
Objective Field:Tidal energy
UTAS Author:Green, S (Mr Sam Green)
UTAS Author:Penesis, I (Professor Irene Penesis)
UTAS Author:Nader, J-R (Dr Jean-Roch Nader)
ID Code:112725
Year Published:2016
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2016-11-24
Last Modified:2018-05-22

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