The vessel Nova K, will be undertaking survey and PLGR work on the array cable routes.

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London Array Ltd. Construction Management Port of Ramsgate Military Road Ramsgate CT11 9LG www.londonarray.

1 London Array Ltd. Construction Management Port of Ramsgate Military Road Ramsgate CT11 9LG Notice of operations at London Array Offshore Wind Farm Date of Notice: 29 th April 2012 Notice no: 72 The offshore construction work for London Array is now well underway. We are issuing weekly notices on the progress and resources involved in the offshore project. The intention is to give an overview of activities and vessels involved. Should anyone have questions to the operations, we kindly ask you to put them forward well in advance. London Array Offshore Wind Farm For general information on the London Array project, see: If you have any questions on the offshore activities, or request further information, please direct them to: 1. Work planned for week 18 (30/04/12 to 06/05/12) Foundation installation vessel MPI Adventure will install J11 K12 and J12. Whilst construction is taking place at this position a 500m safety zone is established, and vessels are to keep clear. The Wind Turbine installation jack up Sea Worker and assist tugs Sea Alfa, Sea Echo, will install H19, F18 and I19. Whilst construction is taking place at these positions a 500m safety zone is established, and vessels are to keep clear. The Wind Turbine installation vessel MPI Discovery will install F07 E07 D08 C06 C07 B08 and then return to Esbjerg to load further units. Whilst construction is taking place, a 500m safety zone is established, and vessels are to keep clear. The Array cable installation vessel Stemat 82 and assist tugs Lydia D and Yvonne W will return to site from Sheerness to install array cable SS1 to E15 and D20 to C19. Whilst construction is taking place, a 500m safety zone is established, and vessels are to keep clear. The Array cable installation vessel Stemat Olso and assist tugs Sea Charlie and Maggie M will return to site from Sheerness to install array cable M19 to M20 and then L19 to M19. Whilst construction is taking place, a 500m safety zone is established and vessels are to keep clear. The Array cable installation vessel Pontra Maris and assist tugs Amstel Stroom and Odin, will complete mobilization in Sheerness and will deploy to site. Whilst construction is taking place, a 500m safety zone is established and vessels are to keep clear. The multipurpose vessels Ocean Dragon and Magellan Echo will carry out rectification works infield during the week involving diving operation during which a 500m safety zone is established and vessels are to keep clear. The Array cable installation Ship Normand Flower will complete mobilization at Sheerness and will deploy to site. Whilst construction is taking place, a 500m safety zone is established and vessels are to keep clear. The two Cable crossings between the London Array export cable and the Kentish Flats export cable and the Britned cable, are guarded by the guard vessel "Sorrento". The vessel Coastal Worker assisted by the Sara Maatje 6 will be carrying on with export cable burial in the Swale and at the Kentish Flats cable crossing. During these operations a 500m safety zone is established, and vessels are to keep clear. The vessel Nova K, will be undertaking survey and PLGR work on the array cable routes. Name & Registered Office: London Array limited, Westwood Way, Westwood Business Park, Coventry CV4 8LG. Company no

2 The vessel 'Sea Weasel' will be undertaking Marine Mammal Observation duties, prior to and during piling operations. Construction site guard vessel duties will be covered by the Mary Ann 1. Crew boats Marian Array, Smeaton Array, Conwy Bay, Towyn Bay, Cemaes Bay, Svend T, MPI Rucio, Cwind Alliance, Cwind Athenia, MCS Maestro, Transporter, Distributor, Voyager, Bayard 1, Bayard 2, Bayard 3, Bayard 4, Cathrin, Windcat 4, Windcat 6, Windcat 7, Gardian 1, Gardian 3, Gardian 7, Gardian 8 Gardian 9, Windspeed 4, Dalby Humber, Dalby Tees, Dalby Esk and Cardinal P will take offshore technicians to the installed foundations and construction vessels, and perform personnel transfer duties. The Hotel ships Wind Ambition and Sea Discoverer are situated to the NE and SW of the construction site respectively and act as accommodation for offshore technicians working on foundations and WTG s. The vessel Waterfall, 'Valkyrie' and Coral Wind to undertake site survey work. 2. Vessel on site For details of vessels on site, see attached vessel data matrix. 3. Installations Structures installed: Sub-Station 1 & 2 foundation and topsides Name Position (WGS 84) Name Position (WGS 84) SS N E SS N E Sub-Station; SS1 and SS2, are illuminated and equipped with lights: Mo(U). Foundation Monopoles and transition pieces installed at the locations as listed below (128 installed). Those shaded in RED have had Wind Turbines installed. (Total - 46) No Name Position (WGS 84) No. Name Position (WGS 84) 1 C N E 2 B N E 3 F N E 4 C N E 5 H N E 6 I N E 7 L N E 8 L N E 9 F N E 10 M N E 11 D N E 12 I N E 13 K N E 14 H N E 15 M N E 16 H N E 17 I N E 18 G N E 19 I N E 20 G N E 21 G N E 22 H N E 23 F N E 24 C N E 25 G N E 26 F N E 27 E N E 28 G N E 29 E N E 30 F N E 31 B N E 32 H N E 33 K N E 34 L N E 35 G N E 36 H N E 37 E N E 38 D N E 39 C N E 40 A N E 41 D N E 42 M N E 43 D N E 44 B N E 45 E N E 46 E N E 47 L N E 48 D N E 49 F N E 50 B N E

3 51 H N E 52 K N E 53 F N E 54 D N E 55 G N E 56 C N E 57 I N E 58 A N E 59 G N E 60 I N E 61 H N E 62 D N E 63 G N E 64 J N E 65 F N E 66 J N E 67 J N E 68 E N E 69 E N E 70 E N E 71 J N E 72 I N E 73 E N E 74 J N E 75 K N E 76 J N E 77 F N E 78 M N E 79 H N E 80 J N E 81 B N E 82 I N E 83 F N E 84 G N E 85 A N E 86 A N E 87 A N E 88 A N E 89 D N E 90 B N E 91 D N E 92 C N E 93 B N E 94 C N E 95 C N E 96 D N E 97 C N E 98 M N E 99 M N E 100 D N E 101 C N E 102 K N E 103 D N E 104 L N E 105 K N E 106 D N E 107 E N E 108 F N E 109 L N E 110 D N E 111 D N E 112 B N E 113 C N E 114 C N E 115 E N E 116 C N E 117 D N E 118 I N E 119 J N E 120 B N E 121 I N E 122 K N E 123 L N E 124 J N E 125 J N E 126 L N E 127 M N E 128 H N E 129 I N E 130 I N E All Foundations are installed with Lights : Fl(Y) 2.5sec 2Nm Description of the foundations: Yellow cylindrical steel towers with a concrete platform on top. The unique ID number is displayed on signs spaced 120º. Each foundation is equipped with a solar powered amber light Fl(Y) 2.5 s 2nm. Array cables Installed 1 B17-C17 (1) 2 SS1-D19 (25) 3 K17-L17 (44) 4 SS1-E16 (47) 5 SS1-F18 (36) 6 SS1-D17 (30) 7 D17-C17 (31) 8 M18-L18 (48) 9 SS1-E19 (58) 10 D09-D10 (93) 11 B10-B11(100) 12 J17-K17 (43) 13 L17-M17 (45) 14 SS1-E18 (68) 15 F20-G20 (20) 16 F19-G19 (15) 17 D20-D19 (5) 18 B13-B15 (60) 19 J20-K20 (27) 20 C18-B17 (2) 21 E17-F17 (23) 22 D11-D12 (95) 23 H15-G15 (22) 24 G16-H16 (21) 25 F18-G18 (14) 26 E19-F20 (59) 27 G19-H19 (16) 28 E15-f15 (32) 29 F15-G15 (33) 30 H17-I17 (11) 31 SS1-E17(24) 32 H18-G18 (13) 33 H19-I19 (17) 34 H16-I16 (63) 35 G20-H20 (19) 36 K19-L19 (6) 37 E18-F19 (69) 38 M19-M20 (8) Some submarine cables are still unburied and exposed on the surface of the seabed.

4 Wave rider Buoys Identity Lat (WGS 84) Long (WGS 84) Light Knock Deep (North) 51º N 001º E Fl (5) Y 20s 2nm Knock Deep (South) ' N ' E Fl (5) Y 20s 2nm The wave rider buoys are protected by 2 guard buoys (Lt. Fl (5) Y 20sec 2nm) approximately 50 metres to the North and South of each wave rider buoy Description of wave rider buoys: Yellow spherical buoys, top transparent dome with solar panels and flashing light Description of guard buoys: Yellow spar buoys with flashing light and radar reflector. Knock Deep South Buoy off station and position marked with unlit orange buoy. Relevant plans to current activity A B C D E Name Contractors method statements and risk assessments Marine Coordination Procedure Notices to Mariners issued Marine Licence London Array Emergency Response Cooperation Plan (ERCOP) 4. Other notes Reduced clearances at the Kentish Flats and BritNed cable crossings. Kentish Flats cable crossings (51 25'.217N, '.033E). At these three crossings the typical sea bed level was -4m LAT. Due to the newly installed rock berm the depth in some areas is now -1.0m LAT. BritNed cable crossing (51 28'.583N, '.417E). At this crossing the seabed level varies from -6.5m LAT to -9m LAT. Due to the newly installed rock berm the depth in some areas is now -4m LAT. The start and end coordinates of the rock berm are given in the following table:- Crossing Latitude Longitude Easting Northing Kentish Flats From 51 25'.203N '.895E To 51 25'.252N '.169E BritNed From 51 28'.549N '.372E To 51 28'.599N '.457E See Overview at end of this document WGS84 - UTM Zone: 31N Safe distance Whilst installation is ongoing at the individual positions a 500m radius safety zone is established around the installation upon which the construction vessel is installing or maintaining. The only vessels permitted to enter and remain in the safety zone are vessels involved in activities related to construction and major maintenance works. Mariners should be aware that anchor lines can extend from the construction vessels for distances greater than 500m. During the construction period of the wind farm, a 50m radius safety zone is established around each wind turbine, offshore sub-station platform and associated foundation structures, installed, complete or incomplete (until commissioned as part of the London Array Offshore Wind Farm). All vessels are reminded that the J-tube/Bell Mouth configuration extend several meters out from the TP perimeter. All vessels should proceed with caution when approaching the foundations. A number of wet store locations are established at the constructions site. The areas are used for storing anchors and connected pennant buoys when not in use. Positions of wet stores or other obstacles can be obtained from Marine Coordinators office or the onsite guard vessel

5 The Guard vessels (Mary Ann 1 and Sorrento) are in place at the offshore construction site and the export cable crossings, - the vessels can be contacted at all times on VHF Ch16 & 69. The address of the Construction Management office is: London Array Ltd. Construction Management, Port of Ramsgate, Military Road, Ramsgate, CT11 9LG, UK The Marine Coordinators office is manned on a 24hr basis and can be contacted on or londonarraytraffic@dongenergy.dk A Kingfisher flyer has been issued, showing the details of the planned offshore installations. The flyer can be downloaded from and will be handed out through the Fishery Liaison Officers and others. A flyer for the yachting community on the reduced water depth at the cable crossing has been issued. The flyer can be downloaded from the LAL website Latest Notice to Mariners published UKHO Notice to Mariners No 0849/2011 Precautionary note on the construction of London Array Wind Farm and 2448/ Temporary withdrawal of Foulgers Gat buoys (P) London Array Offshore Windfarm to the Swale. Cleve Marshes. Submarine power cables. 0622/2012 Obstructions, reduced depths (Rock berms) 0930/2012 Obstructions, reduced depths. Port of London Notices to Mariners No. L2. Issued 10/01/11, and L18. Issued 15/09/11, London Array export cable laying operations. No. L Issued 13/01/2012: Installation of second export cable. Medway Ports Notice to Mariners - No Issued 23/09/11: Swale Channel - London Array Export cable pull in arrangements. No.30 Issued 18/10/2011: East Swale - London Array Export cable pull in arrangements. No 31 Issued 28/10/2011: East Swale - London Array Export cable pull in arrangements. Notice No 5 issued 13/01/12 London Array East Swale cable pull in. Notice 6 issued 31/01/12 Swale Location of anchors for Stemat Spirit. Trinity House Notice to Mariners No 24/2011 C9 - Foulgers Gat removal of buoyage and navigation of Foulgers Gat not recommended. No Swale temporary relocation of buoys Distribution of this Notice. - The distribution of this notice is as per recipient's header. If you are not the appropriate recipient of these notices, or do not wish to receive the notices in the future, please contact us at the address at the head of this notice or reply to this . Report made by: Marine Coordinator Anker Lauritsen londonarraytraffic@dongenergy.dk Phone: +44(0) or Attachments Chartlet of foundations installed, (At the end of this document) Lay out of wind farm. (At the end of this document) Spread sheet of vessels. (Separate attachment to this ) Chartlet of installed foundations, WTGs and array cables (note this was publised 27/04/12)

7 Layout of London Array Offshore Wind Farm, and Export cable route

Notice of operations at London Array Offshore Wind Farm. Date of Notice: 20 th May 2012 Notice no: 75. London Array Offshore Wind Farm

London Array Ltd. Construction Management Port of Ramsgate Military Road Ramsgate CT11 9LG www.londonarray.com Notice of operations at London Array Offshore Wind Farm Date of Notice: 20 th May 2012 Notice