Observations from structural testing of full-scale tidal turbine blades

In recent years, tidal energy has emerged as a potential key player in future energy security, as it provides a reliable, predictable and dependable source of renewable energy, where, in 2022, the cumulative installed capacity of tidal stream energy in Europe, since 2010, reached 30.2 MW. As tidal...

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Main Authors: William Finnegan, Yadong Jiang, Michael Flanagan, Jamie Goggins
Format: Article
Language:English
Published: European Wave and Tidal Energy Conference 2025-06-01
Series:International Marine Energy Journal
Subjects:
Online Access:https://marineenergyjournal.org/imej/article/view/237
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author William Finnegan
Yadong Jiang
Michael Flanagan
Jamie Goggins
author_facet William Finnegan
Yadong Jiang
Michael Flanagan
Jamie Goggins
author_sort William Finnegan
collection DOAJ
description In recent years, tidal energy has emerged as a potential key player in future energy security, as it provides a reliable, predictable and dependable source of renewable energy, where, in 2022, the cumulative installed capacity of tidal stream energy in Europe, since 2010, reached 30.2 MW. As tidal energy strives towards commercial viability, optimisation of structural components, along with their de-risking through structural testing, has become more prevalent. Full-scale structural testing of tidal turbine blades provides a mechanism to ensure the blades can withstand the high operational loads when deployed, in a controlled laboratory environment. In recent years, this type of testing has been used to de-risk prototype blades in advance of operational trials. However, a limited number of these tests have been performed globally. Therefore, in this paper, observations during the structural (static, dynamic and fatigue) testing of 5 full-scale tidal turbine blades are presented and discussed. The length of these blades range from 2-8 metres, for devices of 70kW to 2MW. A case study of a large blade from a 2MW floating tidal turbine has been used to illustrate some of the results obtained from the structural testing. The experience gained from these structural testing programmes highlighted a number of best practices that could be introduced to the next revision of both the IEC 62600-3:2020 test specification and the DNV-ST-0164 standard. 
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issn 2631-5548
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publishDate 2025-06-01
publisher European Wave and Tidal Energy Conference
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series International Marine Energy Journal
spelling doaj-art-e02d31745013447291b0ec2f877ee59b2025-08-20T03:31:06ZengEuropean Wave and Tidal Energy ConferenceInternational Marine Energy Journal2631-55482025-06-018210.36688/imej.8.247-251Observations from structural testing of full-scale tidal turbine bladesWilliam Finnegan0Yadong JiangMichael FlanaganJamie GogginsUniversity of Galway In recent years, tidal energy has emerged as a potential key player in future energy security, as it provides a reliable, predictable and dependable source of renewable energy, where, in 2022, the cumulative installed capacity of tidal stream energy in Europe, since 2010, reached 30.2 MW. As tidal energy strives towards commercial viability, optimisation of structural components, along with their de-risking through structural testing, has become more prevalent. Full-scale structural testing of tidal turbine blades provides a mechanism to ensure the blades can withstand the high operational loads when deployed, in a controlled laboratory environment. In recent years, this type of testing has been used to de-risk prototype blades in advance of operational trials. However, a limited number of these tests have been performed globally. Therefore, in this paper, observations during the structural (static, dynamic and fatigue) testing of 5 full-scale tidal turbine blades are presented and discussed. The length of these blades range from 2-8 metres, for devices of 70kW to 2MW. A case study of a large blade from a 2MW floating tidal turbine has been used to illustrate some of the results obtained from the structural testing. The experience gained from these structural testing programmes highlighted a number of best practices that could be introduced to the next revision of both the IEC 62600-3:2020 test specification and the DNV-ST-0164 standard.  https://marineenergyjournal.org/imej/article/view/237FatigueComposite blade, Durability, Fullscale testsStructural analysisstaticblade loads, experiments, fatigue, test site, tidal turbineTidal energy
spellingShingle William Finnegan
Yadong Jiang
Michael Flanagan
Jamie Goggins
Observations from structural testing of full-scale tidal turbine blades
International Marine Energy Journal
Fatigue
Composite blade, Durability, Fullscale tests
Structural analysis
static
blade loads, experiments, fatigue, test site, tidal turbine
Tidal energy
title Observations from structural testing of full-scale tidal turbine blades
title_full Observations from structural testing of full-scale tidal turbine blades
title_fullStr Observations from structural testing of full-scale tidal turbine blades
title_full_unstemmed Observations from structural testing of full-scale tidal turbine blades
title_short Observations from structural testing of full-scale tidal turbine blades
title_sort observations from structural testing of full scale tidal turbine blades
topic Fatigue
Composite blade, Durability, Fullscale tests
Structural analysis
static
blade loads, experiments, fatigue, test site, tidal turbine
Tidal energy
url https://marineenergyjournal.org/imej/article/view/237
work_keys_str_mv AT williamfinnegan observationsfromstructuraltestingoffullscaletidalturbineblades
AT yadongjiang observationsfromstructuraltestingoffullscaletidalturbineblades
AT michaelflanagan observationsfromstructuraltestingoffullscaletidalturbineblades
AT jamiegoggins observationsfromstructuraltestingoffullscaletidalturbineblades