Date of Notice: 25th November 2012 Notice no: 102

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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: 25th November 2012 Notice no: 102 The offshore construction work for London Array is now nearing the final stages to completion. 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 47 (26/11/12 to 01/12/12) The Wind Turbine installation vessel MPI Discovery will complete installation of WTG F08 and then continue to install F10, F11 & F12. While construction is taking place at these positions a 500m safety zone is established, and all vessels are to keep clear. The Sea Jack is in Rotterdam. She will return to install H12 and G11. She will be assisted by tugs Sea Golf and Bever. Whilst construction is taking place at these positions a 500m safety zone is established, and all vessels are to keep clear. Cable burial Vessel Sia is mobilizing in Sheerness and is expected on site shortly to commence array cable burial. During these operations a 500m safety zone is established, and all vessels are to keep clear. She will be supported by the crew transfer vessel Tender 1. Dive support vessel Gardian 7 will carry out diver operations infield during the week during which a 500m safety zone is established and vessels are to keep clear. The Dive support vessel HBC Supporter is expected on site to carry out diver operations, for various jobs related to cable protection, infield. During which a 500m safety zone is established and vessels are to keep clear. Windcat 4 will carry out ROV survey work at various locations. 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 Rachel S and at the Cleve Hill beach landing by guard vessel Sorrento. The vessel Coastal Worker and Sara Maatje 6 will complete cable trenching duties in the east Swale and then move to SS2 to continue cable burial operations, during which a 500m safety zone is established and vessels are to keep clear. The Survey Vessel Storm will carry out depth of cable surveys on all four export cables. The rock placement vessel Ham 601 is expected at Kentish Flats crossing to commence surveying and rock dumping. Construction site guard vessel duties will be covered by the Mary Ann 1. Crew boats Marian Array, Smeaton Array, Ellida Array, Conwy Bay, Towyn Bay, Svend T,, Cwind Alliance, Cwind Athenia, Cwind Asherah, Transporter, Distributor, Bayard 1, Bayard 2, Bayard 3, Bayard 4, Windcat 4, Gardian 2, Gardian 3, Cardinal P, Admiral P, Aberffraw Name & Registered Office: London Array limited, Westwood Way, Westwood Business Park, Coventry CV4 8LG. Company no

2 Bay, Cwind Astute, Sea Ferret, Sea Weasel, Deliverer, Supporter & SC Buzzard will take offshore technicians to the installed foundations and construction vessels, and perform personnel transfer duties. Some of these vessels will undertake generator refueling and maintenance duties. The Hotel ship Wind Ambition situated to the NE of the construction site, acting as accommodation for offshore technicians working on the WTG s. The vessels Waterfall, Storm, and Sander II to undertake site survey work including the export cable route 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). Foundations and TP s installed at the locations as listed below (Total 175, All installed). Those shaded in GREEN have had Wind Turbines installed. (Total installed) Those unshaded have Transition pieces and anode cages (Total - 11) 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 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

3 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 131 J N E 132 K N E 133 J N E 134 F N E 135 I N E 136 H N E 137 E N E 138 L N E 139 F N E 140 E N E 141 K N E 142 E N E 143 H N E 144 I N E 145 G N E 146 J N E 147 K N E 148 J N E 149 H N E 150 G N E 151 F N E 152 F N E 153 F N E 154 H N E 155 G N E 156 G N E 157 G N E 158 E N E 159 H N E 160 L N E 161 G N E 162 I N E 163 G N E 164 I N E 165 G N E 166 J N E 167 H N E 168 H N E 169 F N E 170 F N E 171 F N E 172 F N E 173 E N E 174 E N E 175 E 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.

4 Array cables Installed Array Cables Installed 187 Remaining Cables to install 0 All Array cables have now been installed. Most submarine cables are still unburied and exposed on the surface of the seabed. 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 removed from station for maintenance 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. A Notice to Mariners was issued by the Hydrographic Office with reference to amendment of buoyage at Kentish Flats crossing and placing of an additional buoy at Britned crossing. Kentish Flats Three special marks and a South Cardinal Mark have been installed to mark the rock berms on the crossing of the Kentish Flats and London Array Export cable. At these 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. The navigational marks are installed in the following positions: N E N E South Cardinal exhibiting Q(6) + L Fl 15s light character N E N E 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. A North Cardinal Buoy has been installed in the following position:- Named BRIT NORTH N E North Cardinal exhibiting Q light characteristic The start and end coordinates of the rock berm are given in the following table:- Crossing Latitude Longitude Easting Northing From 51 25'.203N '.895E Kentish Flats To 51 25'.252N '.169E

5 From 51 28'.549N '.372E BritNed To 51 28'.599N '.457E See Overview at end of this document WGS84 - UTM Zone: 31U 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 The Guard vessels (Mary Ann 1 Rachel S 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 0849/2011 Precautionary note on the construction of London Array Wind Farm 2448/ Temporary withdrawal of Foulgers Gat buoys /2012 Obstructions, reduced depths (Rock berms) 0930/2012 Obstructions, reduced depths. 1089/2012 Thames Estuary - Long Sand Limit of Wind farm,. 1462/2012 Submarine power cables 2480/2012 Thames Estuary Princes Channel South-westwards Overland passage Eastwards Obstruction. Buoyage. 3187/2012 Princes Channel and Overland Passage-Buoyage. 4312/2012 Thames Estuary - Fisherman s Gat - Obstruction. Foul Port of London Notices to Mariners No. L2. Issued 10/01/11 Commencement of Construction of London Array Offshore Wind Farm Subsea Rock Installation at Kentish Flats and BritNed commencing 18/11/2012. No L22 Issued 5 th Nov 12 Survey of Britned Cable. Medway Ports Notice to Mariners None currently active for London Array. 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 .

6 Report made by: Marine Coordinator Anker Lauritsen 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 )

7 Chartlet of installed foundations, WTGs and array cables (note this was publised 23/11/2012)

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