Greenlink Project, a HVDC interconnector between the Republic of Ireland and the United Kingdom, has invited bidders for route investigation survey services.
Earlier this year, Element Power submitted an application to the Department of Housing, Planning and Local Government for a foreshore licence to carry out the first marine surveys for the Greenlink interconnector.
The call for bids concerns the award of a contract for the marine geophysical, geotechnical and environmental route investigation surveys along interconnector route between Wales and Republic of Ireland.
The survey will be carried out in a designated corridor centred on the cable route. The corridor is expected to be around 500 metres wide and the distance of the cable route is expected to be approximately 170 kilometres.
The route survey must provide a detailed mapping of the bathymetry, of the seabed surface including morphological and geological features and man-made-objects and of the sub-surface geology.
The scope of the assignment will include : Nearshore and offshore geophysical and hydrographic survey; UXO survey; Nearshore and offshore geotechnical investigations; Nearshore and offshore benthic investigations; Geotechnical boreholes.
Duration of the contract is expected to be 18 months.
Greenlink will prequalify up to 5 applicants who are evaluated as most qualified for the specific tender. Only these applicants will be invited to submit a tender.
Deadline for receipt of tenders or requests to participate is March 30, 2018.
The Greenlink interconnector is planned for commissioning in 2023.