Influence of storm surge on tidal range energy
File(s)
Published version
Author(s)
Lewis, MJ
Angeloudis, A
Robins, PE
Evans, PS
Neill, SP
Type
Journal Article
Abstract
The regular and predictable nature of the tide makes the generation of electricity with a tidal lagoon or barrage an attractive form of renewable energy, yet storm surges affect the total water-level. Here, we present the first assessment of the potential impact of storm surges on tidal-range power. Water-level data (2000–2012) at nine UK tide gauges, where tidal-range energy is suitable for development (e.g. Bristol Channel), was used to predict power. Storm surge affected annual resource estimates −5% to +3%, due to inter-annual variability, which is lower than other sources of uncertainty (e.g. lagoon design); therefore, annual resource estimation from astronomical tides alone appears sufficient. However, instantaneous power output was often significantly affected (Normalised Root Mean Squared Error: 3%–8%, Scatter Index: 15%–41%) and so a storm surge prediction system may be required for any future electricity generation scenario that includes large amounts of tidal-range generation. The storm surge influence to tidal-range power varied with the electricity generation strategy considered (flooding tide only, ebb-only or dual; both flood and ebb), but with some spatial and temporal variability. The flood-only strategy was most affected by storm surge, mostly likely because tide-surge interaction increases the chance of higher water-levels on the flooding tide.
Date Issued
2017-01-13
Date Acceptance
2017-01-12
Citation
ENERGY, 2017, 122, pp.25-36
ISSN
0360-5442
Publisher
Elsevier
Start Page
25
End Page
36
Journal / Book Title
ENERGY
Volume
122
Copyright Statement
© 2017 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND
license (
http://creativecommons.org/licenses/by-nc-nd/4.0/).
license (
http://creativecommons.org/licenses/by-nc-nd/4.0/).
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000399267100003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Technology
Thermodynamics
Energy & Fuels
Tidal energy
Barrages
Lagoons
Storm surge
Resource
Reliability
WAVE CONDITIONS
SEVERN BARRAGE
CURRENT POWER
UK
VARIABILITY
RESOURCE
FLOOD
MODEL
OPTIMIZATION
SCHEMES
Energy
0913 Mechanical Engineering
0915 Interdisciplinary Engineering
Publication Status
Published