Anchor Block Removal

Concepts

• hayle
• offshore services
• celtic sea power
• steel anchor blocks
• complete removal of the mooring clumps
• removal rov survey
• blocks
• anchor blocks
• mooring spread components
• clump weights

Location

Description

Celtic Sea Power is the trading name for Wave Hub Development Services Ltd, a Cornwall Council company. Celtic Sea Power ("The Vendor") is seeking to remove 6 concrete and steel anchor blocks from the Twin Hub Ltd operated Floating Offshore Wind development site at Hayle in Cornwall, together with all other mooring spread components, as part of the preparation for the future development, construction and operation of a floating offshore wind (FLOW) array. The Vendor is seeking solutions which; • Ensure the blocks are removed before 30th June 2022 • Maximise opportunities to remove the blocks before the end of 2021 • Use the expertise and experience of the successful contractor to maximise value through vessel and operational window choice. The anchor blocks were installed in 2014 as foundations for the SeaTricity wave energy device and consist of 6 clump weights, 4 Outer Mooring square clumps at 23 tonnes (dry) / 15 tonnes (wet) and 2 Centre Mooring circular clumps of combined to make a main clump of 126 tonnes (dry) / 80 tonnes (wet). The vendor is seeking a suitable contractor to: • Develop a methodology for the complete removal of the mooring clumps and residual mooring equipment from the Celtic Sea Power Site by end of June 2022; • Undertake all HSEQ and Project planning in line with industry standards, • Supply suitable vessels, plant, craneage, marine spread, ROV's inclusive of fuel, crew, lubes, stores, dues and other disbursements as required to execute the project plan, • Transport blocks from site, land ashore and dispose of in line with all environmental and waste management legislation, • Conduct post-removal ROV survey demonstrating that site is clear, • Provide project plans, HSEQ documentation, daily progress reports, and final report. The mooring spread is some 300m or so from the installed electrical infrastructure at the site - which comprises an export cable, hub and 4 x cable tails. A mission critical requirement for the successful contractor will be the minimisation of any potential damage to this infrastructure. To apply, please download the attached tender documentation and follow instructions therein.

CPV Codes

• 76520000 - Offshore services

Indicators

• Contract is suitable for SMEs.

Other Information

Invitation to Tender CSP_2021_TEN_02-Anchor Block Removal.pdf Supporting information Appendix 1 - Seatricity Decommissioning Plan.pdf Supporting Information Appendix 2 - Visual Survey Report.pdf