EMEC FORESEA tidal energy tripod decommissioning study

The project involves the decommissioning of a tripod from the European Marine Energy Centre (EMEC) Fall of Warness tidal energy test site The project involves the decommissioning of a tripod from the European Marine Energy Centre (EMEC) Fall of Warness tidal energy test site

A new collaborative decommissioning project aims to conduct forensic analysis of tidal energy tripods and feedback lessons learnt for the benefit of the whole ocean energy sector.

The project involves the decommissioning of a tripod from the European Marine Energy Centre (EMEC) Fall of Warness tidal energy test site, in order to give the industry a clearer insight into the latter stages of the technology’s lifecycle.

“We are delighted to have been appointed through tender by EMEC as the marine contractor for this important decommissioning project,” said Douglas Leask, managing director, of Orkney-based Leask Marine, which has been contracted by EMEC to undertake the work.

“Providing a low-cost option for decommissioning has come about through using the same methodology as other successful subsea structure decommissioning projects that Leask Marine has performed around the UK for developers.”

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The project will focus on conducting forensic analysis to obtain a comprehensive understanding of the end-of-life condition of the tripod, which was first installed in 2009, and ascertain the long-term effect of deploying components and systems in the sea.

Forensic examination techniques will focus on biofouling and metallurgic analysis as well as collation of a detailed photographic record of the decommissioning activity for future reference.

A lessons-learned report offering best-practices for device and infrastructure design, deployment, operation, maintenance, and decommissioning will be published for the benefit of the sector, enabling developers to minimise decommissioning costs and de-risk future projects.

The project will feed into a collaborative FORESEA-funded project called Forensic Decommissioning for Tidal Energy Converters (FoDTEC), which is being undertaken by Blackfish Engineering Design Ltd, the International Centre for Island Technology (ICIT), Rovco Ltd and Brunel Experimental Techniques Centre, Brunel Centre for Advanced Solidification Technology and Brunel Design.

By Anne-Marie Causer

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