ROC Trading Overview - June 2012

Number of ROC's traded Buyer:

Grand Total

E.ON Energy E.ON Limited Energy EDF CustomersPlc EnergyVattenfall GmbH Trading SmartestEnergy Ltd ScottishPower EnergyLtdRetail Naturgas DONG A/S Energy DONG Power(UK)Ltd Trading GasBritish Ltd Ltd NFPAS SSE Energy Supply Ltd plc UK EON Energy Viridian SupplyLtd Power & Gas Total UK SUEZENERGY GDF UK StatkraftWindUK Ltd. EGLUK Solutions Tradelink Trading EDF Limited GoodEnergy Ltd FireflyPower Limited Sainsbury's SupermarketsLtd Limited Tarmac EnergyAirtricity Supply(NI)Ltd ESBIndependent Energy(NI)Ltd PowerHaven Ltd LoCO2 Energy Ltd EnergyNovera GenerationLtd No2 Co-operativeThe EnergyLtd Energy Data CompanyLtd EnergyPower NI Ltd RenewablesAction Energy Trading Limited Keithfield Energy Limited Energy Limited MA EnergyOpus Limited Green Energy (UK) PLC EnergyPower NI Limited Seller: NpowerLtd RWE Npower 477,812 477,812 Vattenfall Wind Power Ltd 321,123 22,290 343,413 Fred Olsen Renewables Ltd 305,771 305,771 EDF Trading Limited 257,748 43,500 301,248 EON UK plc 250,549 250,549 DONG Energy Power (UK) Ltd 200,440 200,440 Walney (UK) Offshore Windfarms Ltd. 150,298 21,997 172,295 ScottishPower Renewables (UK) 1,954 149,228 151,182 Infinis Limited 15,236 9,245 39,264 63,745 Viridian Energy Supply Ltd 60,909 60,909 Falck Renewables Ltd 37,664 12,622 9,391 59,677 Ormonde Energy Limited 59,155 59,155 Cottam Power Ltd 53,590 53,590 Biffa Waste Services Ltd 41,036 1,923 42,959 Devon Wind Power Ltd. 36,348 36,348 NFPAS Ltd 32,455 3,154 435 36,044 Mantlin 639 32,550 33,189 ScottishPower Renewables (UK) Limited 33,154 33,154 Viridor Waste Disposal Ltd 32,221 845 33,066 Sita Holding UK Ltd 30,862 30,862 Braes Of Doune Wind Farm (Scotland) Limited 29,821 29,821 SembCorp Utilities (UK) Limited 28,705 28,705 Clyde Windfarm (Scotland) Limited 24,630 24,630 Infinis (Re-Gen) Limited 3,884 12,963 7,365 24,212 RES Ltd 6,858 2,909 13,594 8 23,369 Alcan Primary Metal - Europe 21,173 21,173 Veolia Environmental Services Plc 19,639 19,639 The Cornwall Light & Power Co. Ltd 19,495 19,495 Barrow Offshore Wind Limited 18,827 18,827 Avondale Environmental Limited 17,353 17,353 EDL (UK) LFG Generation Ltd 17,238 17,238 Severn Trent Water Ltd 16,500 16,500 Balcas Timber Limited 10,739 3,444 14,183 ESB Independent Energy (NI) Ltd 13,156 13,156 SmartestEnergy Ltd 10,918 2,015 12,933 Rusholme Windfarm Ltd 11,465 11,465 Scout Moor Wind Farm Ltd 8,942 1,568 10,510 BEGL 3 Limited 10,149 10,149 energen biogas 10,134 10,134 ENER-G Natural Power Limited 174 9,933 10,107 Ecotricity Group Ltd 10,060 10,060 Western Bioenergy Limited 10,003 10,003 Novera Energy Generation No2 Ltd 1,972 7,290 9,262 Keadby Generation Ltd 8,671 8,671 Fenland Windfarms Ltd 8,660 8,660 Triodos Renewables Ltd 3,190 5,332 8,522 Firefly Power Limited 8,500 8,500 Southern Water 8,458 8,458 United Utilities Water plc 8,355 8,355 Viridis Energy (Norgen) Limited 7,655 7,655 Ardrossan Wind Farm (Scotland) Limited 6,768 6,768 Tradelink Solutions 18 1,209 3,194 2,044 6,465 Minsca Windfarm (Scotland) Limited 6,199 6,199 Longpark Windfarm Ltd 6,090 6,090 EPR Scotland Ltd 5,692 5,692 SITA UK 5,456 5,456 Wind Energy (North Rhins) Limited 5,251 5,251 High Hedley Hope Wind Ltd (1) 5,161 5,161 HG CAPITAL UK WINDFARM I LIMITED 5,116 5,116 Dalry Community Wind Company Ltd 5,013 5,013 Slieve Divena Wind Farm Limited 2,505 2,505 5,010 Scotia Wind (Craigengelt) Limited 4,973 4,973 Biogen (UK) 4,896 4,896 West Durham Windfarm Limited 4,734 4,734 Dalswinton Windfarm (Scotland) Limited 4,538 4,538 Sainsbury's Supermarkets Ltd 3,910 3,910 Carno 2 LLP TBC1 3,800 3,800 Screggagh Windfarm Limited 3,687 3,687 Anglian Water Services Ltd 3,639 3,639 Tarmac Limited 3,621 3,621 Pendine Wind Farm Limited 3,621 3,621 Glenkerie Wind Farm Limited 3,598 3,598 Talisman Energy (UK) 3,455 3,455 Garves Wind Limited 3,348 3,348 Hunters Hill Windfarm Ltd 3,186 3,186 Tullo WInd Farm Limited 3,139 3,139 John Rennie & Sons (Farmers) Ltd 3,139 3,139 Cory Environmental (Central) Ltd 3,116 3,116 Bicker Fen Windfarm Ltd 3,041 3,041 Oxford Renewable Energy Limited (OREL) 2,993 2,993 Ian and Caroline Bond on behalf of Northwick Estate 2,969 2,969 Merck Sharp and Dohme Limited 2,967 2,967 Power NI Energy Ltd 2,911 2,911 ROC Trading Overview - June 2012

Number of ROC's traded Buyer:

Grand Total

E.ON Energy E.ON Limited Energy EDF CustomersPlc EnergyVattenfall GmbH Trading SmartestEnergy Ltd ScottishPower EnergyLtdRetail Naturgas DONG A/S Energy DONG Power(UK)Ltd Trading GasBritish Ltd Ltd NFPAS SSE Energy Supply Ltd plc UK EON Energy Viridian SupplyLtd Power & Gas Total UK SUEZENERGY GDF UK StatkraftWindUK Ltd. EGLUK Solutions Tradelink Trading EDF Limited GoodEnergy Ltd FireflyPower Limited Sainsbury's SupermarketsLtd Limited Tarmac EnergyAirtricity Supply(NI)Ltd ESBIndependent Energy(NI)Ltd PowerHaven Ltd LoCO2 Energy Ltd EnergyNovera GenerationLtd No2 Co-operativeThe EnergyLtd Energy Data CompanyLtd EnergyPower NI Ltd RenewablesAction Energy Trading Limited Keithfield Energy Limited Energy Limited MA EnergyOpus Limited Green Energy (UK) PLC EnergyPower NI Limited Seller: NpowerLtd Muirhall Wind Farm Ltd 2,831 2,831 Banks Renewables (Hazlehead Wind Farm) Ltd 2,812 2,812 Banks Renewables (Marr wind Farm) Ltd 2,784 2,784 Patersons of Greenoakhill 2,752 2,752 Benzies Renewable Power Ltd 1,898 748 2,646 Dummuies Windfarm Huntly Limited 2,637 2,637 Bagmoor Wind Limited 2,453 2,453 McCain Foods Whittlesey 2,431 2,431 Renewable Power Systems 2,413 2,413 Westmill Wind Farm Co-operative Ltd 276 2,000 2,276 Lyme and Wood Power Limited 2,259 2,259 Moelogan 2 cyfyngedig 2,254 2,254 SSE Generation Ltd 2,180 2,180 Northumbrian Water Ltd 2,108 2,108 Greendykeside Wind Farm 997 1,079 2,076 Yorkshire Windpower Ltd 2,066 2,066 Gengas Ltd 2,039 2,039 Pennant Walters (Maesgwyn) Ltd 2,039 2,039 Fenpower Ltd 1,970 1,970 Wind Assets LLP 1,856 1,856 Eggborough Power Limited 1,848 1,848 A J Duncan T/A Duncan Greenenergy 1,807 1,807 Shetland Aerogenerators Ltd 1,799 1,799 Achairn Energy Limited 1,775 1,775 Good Energy Delabole Windfarm Ltd 1,761 1,761 Energy Data Company Ltd 1,742 1,742 Owenreagh Power Partners 1,565 1,565 Llangwryfon Windfarm Ltd 1,510 1,510 Craig Wind Farm Limited 1,504 1,504 Walkway Windfarm Ltd 1,491 1,491 Lower Reule Bioenergy Ltd 1,439 1,439 Barfoot of Botley Ltd 1,421 1,421 Veolia Water Outsourcing Limited 1,391 1,391 The Walled Gardens Power Company Ltd 1,375 1,375 Stuartfield Wind Power Limited 1,316 1,316 Eclleshall Biomass Ltd 1,296 1,296 Grundon Waste Management Ltd 1,209 1,209 Broadview Energy Generation Limited 1,202 1,202 Burgar Hill Renewables Ltd 1,146 1,146 FIM Services Limited 1,105 1,105 TPG Wind Ltd 1,058 1,058 Ardgrain Renewables Ltd 1,048 1,048 Vigo Utopia Power Plant 1,014 1,014 CLP Envirogas Limited 941 941 Derwent Hydroelectric Power Ltd 924 924 Branston Limited 916 916 South West Water Ltd 857 857 Scotrenewables (Flotta) Ltd 835 835 Haddo Energy Limited 827 827 NIK Energy Ltd 773 773 EGL UK 758 758 House O'Hill Wind Energy Ltd 744 744 Keithfield Energy Limited 729 729 Garbhaig Hydro Power Ltd 689 689 Gwynt Cymru Limited 678 678 Winscales Phase II 673 673 Mauri Products Ltd 668 668 Aurora Energy Ltd 654 654 Cold Northcott Windfarm Ltd 634 634 Windcluster 2000 Ltd 596 596 Greenspan Electric Cairnmore Ltd 595 595 Npower Ltd 594 594 Skelmonae Windfarm Ltd 593 593 Greenspan Electric Balquhindachy Ltd 592 592 St John's Wells Wind Farm Ltd 551 551 NNB Generation Company Limited 548 548 Mackies Limited 548 548 AFBI 541 541 Blakiston Houston Estate Company 533 533 CR Foster & Partners 514 514 Ormsary Farmers 499 499 Carillion Services Ltd 490 490 Fred Olsen Ltd 480 480 NR&SLM Green 446 446 Herdmans Limited 427 427 Berwick Farm Power Limited 407 407 Broadland Properties Ltd 405 405 Redbog Renewables Ltd 394 394 JJ Power Ltd 382 382 Markham Grange Nurseries 379 379 Tidal Generation Limited 373 373 Green2Go Limited 367 367 Shanes Castle Estates Company Limited 364 364 ROC Trading Overview - June 2012

Number of ROC's traded Buyer:

Grand Total

E.ON Energy E.ON Limited Energy EDF CustomersPlc EnergyVattenfall GmbH Trading SmartestEnergy Ltd ScottishPower EnergyLtdRetail Naturgas DONG A/S Energy DONG Power(UK)Ltd Trading GasBritish Ltd Ltd NFPAS SSE Energy Supply Ltd plc UK EON Energy Viridian SupplyLtd Power & Gas Total UK SUEZENERGY GDF UK StatkraftWindUK Ltd. EGLUK Solutions Tradelink Trading EDF Limited GoodEnergy Ltd FireflyPower Limited Sainsbury's SupermarketsLtd Limited Tarmac EnergyAirtricity Supply(NI)Ltd ESBIndependent Energy(NI)Ltd PowerHaven Ltd LoCO2 Energy Ltd EnergyNovera GenerationLtd No2 Co-operativeThe EnergyLtd Energy Data CompanyLtd EnergyPower NI Ltd RenewablesAction Energy Trading Limited Keithfield Energy Limited Energy Limited MA EnergyOpus Limited Green Energy (UK) PLC EnergyPower NI Limited Seller: NpowerLtd Element Engineering 362 362 Thorfinn Wind 'A' Ltd 353 353 Ardverikie Estates Ltd 344 344 Farmergy Ltd 299 299 Old Manor Electric Company Ltd 294 294 Croda Europe Ltd 288 288 Randalstown Hydro Electric Ltd 274 274 Mara Securities Ltd 262 262 Leeds City Council 259 259 Waste Gas Technology UK Ltd 239 239 Deanston Hydro Limited 225 225 TLS Hydro Power Ltd 222 222 Glenlyon Estate 219 219 Edviron Ltd 209 209 Kemble Farms Ltd 199 199 Dopower Ltd 192 192 New Lanark Conservation Trust 190 190 Dwr Cymru Welsh Water 187 187 currie engineering (garvagh) ltd 184 184 United Utilities Operational Services (Tay) 178 178 MRC Energy Ltd 174 174 Biocycle South Shropshire Ltd 170 170 ardchattan hydro limited 168 168 Monzie Hydro Electric Partnership 166 166 Burnley Energy LLP 161 161 Ashfield Mill 155 155 Isle of Anglesey County Council 134 134 Pant yr Afon Hydro Scheme 131 131 Glenglass Hydro Ltd 129 129 Findhorn Wind Park Ltd 128 128 Glen Lyn Generations Ltd 120 120 Water Service N.Ireland 117 117 University of Ulster Coleraine Campus WTG 112 112 Straid Farms Ltd 107 107 Culmore Renewables 107 107 Dulas Hydrogeneration Ltd 105 105 Irene Power Limited 103 103 Miles Robert Fursdon 7 95 102 SHP Projects Ltd 100 100 Fourstones Paper Mill Ltd 99 99 Jason Wilkinson 98 98 Camserney Hydro Scheme Ltd 97 97 Ad Waste Ltd 94 94 PCM&NM PUGH 89 89 Longley Farm 84 84 Guy & Wright Ltd 80 80 Inver Farmers 75 75 P T KELLY 74 74 West Coast Contractors Ltd 73 73 Bridge of Tilt Co. Ltd 71 71 Eliock Hydro Electric Company Ltd 71 71 Faichemard Farm Hydro 67 67 Knoydart Hydro Ltd 63 63 Coniston Hydro 61 61 Rottal Hydro Ltd 58 58 J Stobart & Sons Ltd 58 58 Hydro Energy Developments Ltd 52 52 W E Carson & son 52 52 United Hospitals Health & Social Services Trust 47 47 Berwyn Hydro Ltd 46 46 Western Hydro Ltd 46 46 Kestral Controls Ltd 46 46 Quick Green Energy Ltd 45 45 CAFRE Greenmount 45 45 Hegarty Electric 40 40 Saval GAC 37 37 Chatsworth House Hydro 36 36 David Cooke (Nantcol) Ltd 35 35 Groundwork West Durham 32 32 The Coignafearn Hydro 32 32 Point Road 32 32 Bolfracks Estate 29 29 Old Faskally Farming Company Limited 25 25 Thameswey Energy Ltd 24 24 Dennis Gillson & Son Ltd 23 23 The Firm of Kildermorie Estate 23 23 Fairburn House Ltd 23 23 Mr Frank Boyd 22 22 Swansea Bay Energy Partnership Ltd 22 22 Eigg Electric Ltd 22 22 United Utililities Operational Services (Highland) 20 20 FBA 17 17 Groundwork South Tyneside 16 16 ROC Trading Overview - June 2012

Number of ROC's traded Buyer:

Grand Total