Show simple item record

dc.contributor.authorColes, Danny
dc.contributor.authorAngeloudis, A
dc.contributor.authorGreaves, Deborah
dc.contributor.authorHastie, G
dc.contributor.authorLewis, M
dc.contributor.authorMackie, L
dc.contributor.authorMcNaughton, J
dc.contributor.authorMiles, Jonathon
dc.contributor.authorNeill, S
dc.contributor.authorPiggott, M
dc.contributor.authorRisch, D
dc.contributor.authorScott, B
dc.contributor.authorSparling, C
dc.contributor.authorStallard, T
dc.contributor.authorThies, P
dc.contributor.authorWalker, S
dc.contributor.authorWhite, D
dc.contributor.authorWillden, R
dc.contributor.authorWilliamson, B
dc.identifier.otherARTN 20210469

<jats:p> This review provides a critical, multi-faceted assessment of the practical contribution tidal stream energy can make to the UK and British Channel Islands future energy mix. Evidence is presented that broadly supports the latest national-scale practical resource estimate, of 34 TWh/year, equivalent to 11% of the UK’s current annual electricity demand. The size of the practical resource depends in part on the economic competitiveness of projects. In the UK, 124 MW of prospective tidal stream capacity is currently eligible to bid for subsidy support (MeyGen 1C, 80 MW; PTEC, 30 MW; and Morlais, 14 MW). It is estimated that the installation of this 124 MW would serve to drive down the levelized cost of energy (LCoE), through learning, from its current level of around <jats:inline-formula> <mml:math xmlns:mml=""> <mml:mrow> <mml:mn>240</mml:mn> <mml:mo> </mml:mo> <mml:mrow> <mml:mtext>£</mml:mtext> </mml:mrow> <mml:mrow> <mml:mo>/</mml:mo> </mml:mrow> <mml:mrow> <mml:mtext>MWh</mml:mtext> </mml:mrow> </mml:mrow> </mml:math> </jats:inline-formula> to below <jats:inline-formula> <mml:math xmlns:mml=""> <mml:mrow> <mml:mn>150</mml:mn> <mml:mo> </mml:mo> <mml:mrow> <mml:mtext>£</mml:mtext> </mml:mrow> <mml:mrow> <mml:mo>/</mml:mo> </mml:mrow> <mml:mrow> <mml:mtext>MWh</mml:mtext> </mml:mrow> </mml:mrow> </mml:math> </jats:inline-formula> , based on a mid-range technology learning rate of 17%. Doing so would make tidal stream cost competitive with technologies such as combined cycle gas turbines, biomass and anaerobic digestion. Installing this 124 MW by 2031 would put tidal stream on a trajectory to install the estimated 11.5 GW needed to generate 34 TWh/year by 2050. The cyclic, predictable nature of tidal stream power shows potential to provide additional, whole-system cost benefits. These include reductions in balancing expenditure that are not considered in conventional LCoE estimates. The practical resource is also dependent on environmental constraints. To date, no collisions between animals and turbines have been detected, and only small changes in habitat have been measured. The impacts of large arrays on stratification and predator–prey interaction are projected to be an order of magnitude less than those from climate change, highlighting opportunities for risk retirement. Ongoing field measurements will be important as arrays scale up, given the uncertainty in some environmental and ecological impact models. Based on the findings presented in this review, we recommend that an updated national-scale practical resource study is undertaken that implements high-fidelity, site-specific modelling, with improved model validation from the wide range of field measurements that are now available from the major sites. Quantifying the sensitivity of the practical resource to constraints will be important to establish opportunities for constraint retirement. Quantification of whole-system benefits is necessary to fully understand the value of tidal stream in the energy system. </jats:p>

dc.publisherThe Royal Society
dc.subjecttidal stream power
dc.subjecttidal stream energy
dc.subjectpractical resource
dc.subjectcost of energy
dc.subjectsystem integration
dc.subjectenvironmental impact
dc.titleA review of the UK and British Channel Islands practical tidal stream energy resource
dc.typeJournal Article
plymouth.journalProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Engineering, Computing and Mathematics
plymouth.organisational-group/Plymouth/PRIMaRE Publications
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA12 Engineering
plymouth.organisational-group/Plymouth/Research Groups
plymouth.organisational-group/Plymouth/Research Groups/Marine Institute
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
plymouth.organisational-group/Plymouth/Users by role/Researchers in ResearchFish submission
dc.rights.embargoperiodNot known
rioxxterms.typeJournal Article/Review

Files in this item


This item appears in the following Collection(s)

Show simple item record

All items in PEARL are protected by copyright law.
Author manuscripts deposited to comply with open access mandates are made available in accordance with publisher policies. Please cite only the published version using the details provided on the item record or document. In the absence of an open licence (e.g. Creative Commons), permissions for further reuse of content should be sought from the publisher or author.
Theme by 
Atmire NV