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Closed United Kingdom Services

Reducing Noise from Offshore Wind Piling: A Pilot

Buyer: DEPARTMENT OF ENVIRONMENT, FOOD AND RURAL AFFAIRS (Defra Network eTendering Portal)

Published
13 December 2024
Submission deadline
13 January 2025
Estimated value
£1
Place of performance
UK
Procedure
Open procedure
Lots
1
Notice number
040342-2024
Reference
ocds-h6vhtk-04c823
Official source
Official source

CPV codes

Description

Underwater noise is increasing in the marine environment. A key area of concern is impulsive noise which can be generated from a range of activities including piling during the installation of offshore wind turbine foundations. Without mitigation, mid-frequency sound, such as from impact piling, has been shown to cause permanent hearing loss, tissue damage and lethal injury to marine mammals. The sound can also result in disturbance effects, such as disruption of foraging and potential impacts to breeding, communication and navigation. This can be potentially more harmful at the population level as it can impact a larger number of marine mammals. Fish have also been shown to have lethal and sub-lethal effects from impulsive sounds. It is thought that piling can also cause physiological impacts to eggs and larvae as these life stages contain air sacs. Other impacts such as poor body condition post hatching could occur, in addition to behavioural impacts that can affect the population level. For example, if piling activity is to take place close to a known spawning bed or ground for herring during the key spawning period, the behaviour of the spawning herring could potentially be dis…

Official publications

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Frequently asked questions

What is the deadline to bid for this tender?
The submission deadline is 13 January 2025. Check the official source, as dates can be modified.
What is the estimated value of this tender?
The estimated value published by the buyer is £1.
Who is the buyer of this tender?
The contracting authority is DEPARTMENT OF ENVIRONMENT, FOOD AND RURAL AFFAIRS (Defra Network eTendering Portal) (United Kingdom).
How can I bid for public tenders in the United Kingdom?
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Data collected from official public procurement sources. Amounts as published by the buyer.