Tidal current power for Indonesia? An initial resource estimation for the Alas Strait

Blunden, L.S., Bahaj, A.S. and Aziz, N.S. (2012) Tidal current power for Indonesia? An initial resource estimation for the Alas Strait Renewable Energy (doi:10.1016/j.renene.2012.01.046).


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Indonesia – with its many narrow straits and significant tidal range – might be expected to have considerable potential for tidal current power generation. A particularly promising site is the Alas Strait, with shallow depth, high tidal current velocity and location far from major shipping lanes. In this study, a hydrodynamic numerical model of the Alas Strait was run and validated against some tidal current velocity measurements. The results of the model were then used to estimate the practically exploitable energy resources in the strait, using a development of a method used in previous resource estimations. In this method, the incident velocity on each row of an array was extracted from the model and then attenuated based on the direction of the flow and the number of rows deep into the array. In this way, the effects of practical array shape can be simulated without the need to include computationally expensive parameterization of turbines in the model. Two scenarios were considered, with and without a maximum depth limitation of 40 m. The first scenario gave an estimate of the practically exploitable annual energy yield from the Alas Strait of 330 GW h with the second scenario nearly double at 640 GW h.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1016/j.renene.2012.01.046
ISSNs: 0960-1481 (print)

Organisations: Energy & Climate Change Group
ePrint ID: 341106
Date :
Date Event
28 February 2012e-pub ahead of print
Date Deposited: 16 Jul 2012 08:50
Last Modified: 17 Apr 2017 16:49
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/341106

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