NOTICE TO MARINERS. Western Link Project. Shallow and Deep water cable installation

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1 NOTICE TO MARINERS Issue Date: 20 th December, 2016 Western Link Project Shallow and Deep water cable installation Mariners are advised that commencing at the beginning of January 2017, the Giulio Verne (IMO ; Call Sign IBPU) is planned to lay Pole 1 of Campaign 4 (C4, Firth of Clyde Table 1) from Ardneil shore end at KP (Kilometer Post) 0 to KP 58 together with the first section of Pole 2 up to KP 5. During such times the vessel will have restricted ability to manoeuvre and other vessels are requested to pass at a safe speed and distance. The vessel will monitor VHF Channel 16 at all times. Further details on the planned works are set out in the rest of this notice. Fig 1 - Cable Laying vessel - Giulio Verne

2 Project Description The Western Link Project consists of installing two 600 kv DC submarine cables in the Irish Sea from Ardneil (Scotland) to Wirral (England) for a total route length of about 387 km (Figure 2). The cables will usually be laid as two separate cables approximately 30 metres apart. Cable installation for Campaign 1 & Campaign 2 (in Liverpool Bay) and for Campaign 3 & Campaign 6 (in the North Channel) have been completed. The cable lay vessel Giulio Verne is planned to install the next campaign C4 (Firth of Clyde Figure 2) commencing at the beginning of January 2017; Pole 1 from Ardneil shore end at KP 0 to KP 58 together with the first section of Pole 2 from Ardneil shore end at KP 0 up to KP 5. Pole 1 and 2 will be laid in close proximity up to KP 3.8. Landing Operations Laying operations will start by landing the cables at Ardneil bay with Giulio Verne positioned at circa 600m from the exit of the pre-installed ducts (HDD conduits) under the beach and golf course, which is located approximately 400m seaward of the beach. Landing operations will be performed with the assistance of a support barge LM Constructor (MMSI , Call Sign MHUJ2) and tugs together with the use of divers deployed from the barge. LM Constructor, tugs and divers will also make preparatory works a few days in advance of Giulio Verne arrival on site. WGS84 Geodetic Position Name Latitude Latitude KP(km) HDD Exit 'N 'W 0,579 Giulio Verne Position 'N 'W 1,179 Table 1 HDD conduits exit and Giulio Verne position coordinates

3 Cable Laying For the next Campaign (C4), the Western Link HVDC cable will be installed by using the Cable Laying vessel Giulio Verne that will surface lay the cable on the seabed. The cable will be post protected by Post Lay Installation Burial (PLIB) works using jetting tools, these burial works will be covered under a separate Notice to Mariners. Vessels will be requested to pass at a safe speed and distance and fishing vessels are advised to remain a safe distance (approximately 1.5 nautical miles) from the free laid sections and the crossing sections. Deployed Guard Vessels will monitor the exposed areas and advise of safe distances locally.

4 Campaign 4 KP0-KP58 Campaign 3 (KP58-KP175) Campaign 6 (KP60.5-KP177) Campaign 1 & 2 (KP35.6-KP153) Figure 2 Western Link cable route - Installation sections & campaigns

5 APPENDIX 1 Table 2 Campaign 4 installation section route WGS84 - UTM 30 N WGS84 Geodetic ID (Position Name / Event) Easting Northing Latitude Longitude Water Depth referred to LAT (m) Partial Distance (km) KP (km) from Ardneil RKP (km) from Wirral Bearing (deg) Turning Angle (deg) JB_ARDNEIL 'N 'W HDD_SEA_END 'N 'W AC_ 'N 'W m 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W

6 AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W Sirius_North_(2)_Cabl 'N 'W Sirius_North_(1)_Cabl 'N 'W AC_ 'N 'W Lanis_3_Cable_IS 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W AC_ 'N 'W

7 Contact Details: Further enquiries should be addressed to the following contacts: AWJ Marine Prysmian Project Manager Master of Giulio Verne Jim Andrews (who will also coordinate the Fisheries liaison for this operation) Office: +44 (0) , Mobile: +44 (0) , Alberto Pirovano Office: Mobile: VSAT: Mobile: SAT:

8 Distribution List:

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