Offshore Wind Farm (OWF) He Dreiht - Lot Inner Array Grid (IAG) EPCI

Description

The EnBW He Dreiht GmbH seeks to contract the scope of the inter array cables work package. This scope includes the engineering, procurement, installation and commissioning of the array cables. Lot 1: The scope of this Tender refers to the Inter array grid ("IAG)" package of the OWF, which is an EPCI contract, covering engineering, manufacturing, supply, installation, commissioning and testing regarding the array cable, accessories and others. The currently assumed IAG scope/package contains of 90 km to 120 km of array cable divid-ed in up to assumingly 64 to 70 individual cable connections. Currently, the He Dreiht project is at a stage of development, which still considers several potential aspects influencing the layout of the wind farm. The final cable layout still depends on various other work packages such as WTG with its supplier, type, quantity and other fac-tors. Therefore, changes in terms of IAG/cable layout, design, cable length, quantity and also cable type shall be expected. APPENDIX E and APPENDIX F show an exemplary scenario of about 107 km and 70 individual cable connections. This example shall serve as a basis for the start of this Tender, and is subject to adjustments and changes during the Tender Process. The anticipated final scope is expected to be in the above mentioned range of km and num-ber of connections. Assumingly the IAG layout can be clarified by end of Q2 2021 and Tender-ers will be updated by the tendering company accordingly. Any changes in the IAG scope may translate to changes of the tender value accordingly. The scope mainly includes, but is not limited to, the following works (including all associated (required) engineering works, studies, method statements, documentations, interface engi-neering etc.): 1. Pre-Lay Geophysical Route Survey, 2. Pre-Lay Geotechnical Route Survey, 3. Procurement of array cables, 4. Procurement of cable protection system (CPS), 5. Procurement of Accessories, 6. Pre-Lay Grapnel Run (PLGR), 7. Salvage of out of service cable ODIN1 incl. detection survey, 8. Onshore fitting-test trials, 9. Cable Loadout and Transport to site, 10. CPS loading and Transport to site, 11. Installation of Cable Crossings at AC-1 cable (incl. Procurement of required materi-al), 12. Cable Laying (incl. cable route design), 13. Cable Trenching (incl. Burial Assessment Study (BAS) and In-/ Out-survey), 14. Procurement and Installation of Messenger Wires, 15. Installation of CPS, 16. Cable Pull-In, Routing, Stripping and Termination at foundations and converter, 17. Cable Testing, 18. Fiber-Optic Routing, Termination and Testing, 19. As-Built Survey, 20. Spare Cable delivery to a Northern European seaport.