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Sensitivity of tidal lagoon and barrage hydrodynamic impacts and energy outputs to operational characteristics

Angeloudis, Athanasios and Falconer, Roger A. 2017. Sensitivity of tidal lagoon and barrage hydrodynamic impacts and energy outputs to operational characteristics. Renewable Energy 114 (A) , pp. 337-351. 10.1016/j.renene.2016.08.033

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Abstract

The feasibility and sustainable operation of tidal lagoons and barrages has been under scrutiny over uncertainties with regards to their environmental impacts, potential interactions and energy output. A numerical modelling methodology that evaluates their effects on the hydro-environment has been refined to consider technical constraints and specifications associated with variable turbine designs and operational sequences. The method has been employed to assess a number of proposals and their combinations within the Bristol Channel and Severn Estuary in the UK. Operational challenges associated with tidal range power plants are highlighted, while also presenting the capabilities of modelling tools tailored to their assessment. Results indicate that as the project scale increases so does its relative hydrodynamic impact, which may compromise annual energy output expectations if not accounted for. However, the manner in which such projects are operated can also have a significant impact on changing the local hydro-environment, including the ecology and morphology. Therefore, it is imperative that tidal range power plants are designed in such a way that efficiently taps into renewable energy sources, with minimal interference to the regional hydro-environment through their operation.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Advanced Research Computing @ Cardiff (ARCCA)
Engineering
Subjects: T Technology > TC Hydraulic engineering. Ocean engineering
Uncontrolled Keywords: Hydrodynamic modelling; Renewable energy; Tidal energy; Tidal lagoons; Tidal barrages; Resource assessment
Additional Information: This is an open access article under the terms of the CC-BY Attribution 4.0 International license.
ISSN: 1442-133X
Date of First Compliant Deposit: 6 October 2016
Date of Acceptance: 11 August 2016
Last Modified: 19 Oct 2021 01:08
URI: https://orca.cardiff.ac.uk/id/eprint/95035

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