Page /10/26 Energy / R / WPRoland Arvidsson SWT wind turbine is the biggest offshore wind turbine produced in large series Main data: IEC Class:IA Rotor diameter:107 m Blade length:52 m Swept area:9,000 m 2 Hub height: m Power regulation:pitch regulated Annual output at 8 m/s13,000 MWh Blade weight:16 t Rotor weight:95 t Nacelle weight: 125 t 80 m tower weight:250 t Experience data: Prototype installed:2004 Serial production:2006 Total number installed:101 Contracts for:700+ (as per December 31, 2008) New: SWT

Page /10/26 Energy / R / WPRoland Arvidsson Cornerstone of the Multi-MW class: SWT wind turbine Main data: IEC Class:IIA Rotor diameter:93 m Blade length:45 m Swept area:6,800 m 2 Hub height:60-80 m Power regulation:pitch regulated, VS Annual output at 8 m/s8,800 MWh Blade weight:11 t Rotor weight:60 t Nacelle weight: 82 t 80 m tower weight:162 t Experience data: Prototype installed: Serial production:2005 Total number installed:1374 (as per December 31, 2008)

Page /10/26 Energy / R / WPRoland Arvidsson New standard for moderate wind conditions: SWT wind turbine Technical data: IEC Class:IIB Rotor diameter:101 m Blade length:49 m Swept area:8,000 m 2 Hub height:80 m or site-specific Power regulation:pitch regulated, VS Blade weight:10.3 t Rotor weight:62 t Nacelle weight: 82 t 80 m tower weight (IEC IIB):154 t Experience Data Prototype installed:2008 Serial production:2010 Total number installed:3 (June 2009) Høvsøre site, Denmark SWT : 6800m² Source: Siemens Wind Power Football field: 7140m² + 18 %

Page /10/26 Energy / R / WPRoland Arvidsson New rotor completes the SWT-2.3 family SWT VS IEC class: I A Swept area: 5,300 m² SWT IEC class: II A Swept area: 6,800 m² SWT IEC class: II B Swept area: 8,000 m² Source: Siemens Wind Power

Page /10/26 Energy / R / WPRoland Arvidsson 4 Power curve strongly improved in low- to medium wind speeds Source: Siemens Wind Power Power curves Power [kW] Wind speed [m/s] 500 2,500 2,000 1,500 1, Annual electricity production up by 7.5 m/s SWT SWT Annual average wind speed [m/s] Change in annual electricity production SWT SWT % 115% 110% 100%

Page /10/26 Energy / R / WPRoland Arvidsson, SWT : more less noise emission AEP = Annual Electricity Production Source: Siemens Wind Power SWT (Standard Setting) SWT (Standard Setting) SWT (Setting -2 dB) Annual average wind speed [m/s] [GWh] different settings  Same noise control strategies for the SWT as for the SWT  At setting –2 dB(105 dB), the SWT emits less noise and produces more electricity than the SWT in standard setting (105.4 dB)

Page /10/26 Energy / R / WPRoland Arvidsson Integral Blades  The Siemens Integral Blade manufacturing process eliminates glue joints, delivering an integrated blade  The Integral Blade process delivers a blade with unrivaled strength and performance  The Integral Blade process uses unique glass consolidation and injection methods.  The Integral Blade process is protected by patents on key markets

Page /10/26 Energy / R / WPRoland Arvidsson WPS- wind power supervisor Web baserat övervakningssystem  Effekt  Vind  Temperaturer  Felmeddelande  Tillgänglighet  Statistik  Starta/stoppa turbiner

Page /10/26 Energy / R / WPRoland Arvidsson TCM – optimerad drift  TCM systemet innebär en kontinuerlig online vibrationsbevakning mha 6 sensorer vid Huvudaxeln Växellåda Generator  Detekterar avvikelser från det normala mönstret  1500 turbiner övervakas av 2 man Turbine Condition Monitoring (TCM®)  Optimering och möjlighet att planlägga av servicearbetet minskar kostnaderna och down time  Preventiva reparationer av komponenter innan dessa går sönder  Ökad säkerhet - automatiskt stopp om vibrationsnivåerna är för höga

Page /10/26 Energy / R / WPRoland Arvidsson Turbulens Lasthantering Undvik överbelastning och utmattning av turbinen Energiproduktion Begränsa antalet fullständiga “shut-downs” för att undvika överbelastning Användning av tillgångar Övervaka och hantera turbinens livstidskonsumption ShearInfallsvinkel Turbine Load Control – ett sätt att hantera alltför höga laster

Page /10/26 Energy / R / WPRoland Arvidsson Innovationer SWT % Direct Drive Direct Drive generator möjliggör direkt förbindelse mellan rotorn och generatorn utan växellåda Enkel design och färre maskinkomponenter Högre tillgänglighet Lägre generatorförluster som resultat av permanent magnetisering Reducerade underhållskostnader

Page /10/26 Energy / R / WPRoland Arvidsson HYWIND StatoilHydro Tekniska data  WTG: 2,3 MW  urbine weight:138 tonnes  Turbine height:65 m  Rotor diameter:82,4 m  Draft hull: 100 m  Displacement:5300 m3  Diameter at water line: 6 m  Diam. submerged body:8,3 m  Water depths: metres  Mooring: 3 lines

Page /10/26 Energy / R / WPRoland Arvidsson B52 blade 17 ton

Page /10/26 Energy / R / WPRoland Arvidsson Tesla Pris EUR, Effekt 248 hk, km/h 3,9 s Räckvidd 365 km, Laddtid 3,5 h  Om 40 TWh bränsle till Sveriges personbilar ersätts med 10 TWh el ger detta en total CO2- reduktion: 10 M ton (18 %)

Page /10/26 Energy / R / WPRoland Arvidsson Lillgrund