Page 1 2009/10/26 Energy / R / WPRoland Arvidsson SWT-3.6-107 wind turbine is the biggest offshore wind turbine produced in large series Main data: IEC.

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1 Page 1 2009/10/26 Energy / R / WPRoland Arvidsson SWT-3.6-107 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:80-100 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-3.6-120

2 Page 2 2009/10/26 Energy / R / WPRoland Arvidsson Cornerstone of the Multi-MW class: SWT-2.3-93 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:2004-2005 Serial production:2005 Total number installed:1374 (as per December 31, 2008)

3 Page 3 2009/10/26 Energy / R / WPRoland Arvidsson New standard for moderate wind conditions: SWT-2.3-101 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-2.3-93: 6800m² Source: Siemens Wind Power Football field: 7140m² + 18 %

4 Page 4 2009/10/26 Energy / R / WPRoland Arvidsson New rotor completes the SWT-2.3 family SWT-2.3-82VS IEC class: I A Swept area: 5,300 m² SWT-2.3-93 IEC class: II A Swept area: 6,800 m² SWT-2.3-101 IEC class: II B Swept area: 8,000 m² Source: Siemens Wind Power

5 Page 5 2009/10/26 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 1,000 0 2520151050 Annual electricity production up by 7.5% @ 7.5 m/s SWT-2.3-101 SWT-2.3-93 Annual average wind speed [m/s] Change in annual electricity production SWT-2.3-101 SWT-2.3-93 105% 115% 110% 100% 1098765

6 Page 6 2009/10/26 Energy / R / WPRoland Arvidsson, SWT-2.3-101: more energy @ less noise emission AEP = Annual Electricity Production Source: Siemens Wind Power 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 10.5 10.0 8.58.07.57.06.56.0 SWT-2.3-93 (Standard Setting) SWT-2.3-101 (Standard Setting) SWT.-2.3-101 (Setting -2 dB) Annual average wind speed [m/s] [GWh] AEP @ different settings  Same noise control strategies for the SWT- 2.3-101 as for the SWT- 2.3-93  At setting –2 dB(105 dB), the SWT-2.3-101 emits less noise and produces more electricity than the SWT-2.3-93 in standard setting (105.4 dB)

7 Page 7 2009/10/26 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

8 Page 8 2009/10/26 Energy / R / WPRoland Arvidsson WPS- wind power supervisor Web baserat övervakningssystem  Effekt  Vind  Temperaturer  Felmeddelande  Tillgänglighet  Statistik  Starta/stoppa turbiner

9 Page 9 2009/10/26 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

10 Page 10 2009/10/26 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 1 2 3 ShearInfallsvinkel Turbine Load Control – ett sätt att hantera alltför höga laster

11 Page 11 2009/10/26 Energy / R / WPRoland Arvidsson Innovationer SWT-3.0-101 16% 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

12 Page 12 2009/10/26 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: 120-700 metres  Mooring: 3 lines

13 Page 13 2009/10/26 Energy / R / WPRoland Arvidsson B52 blade 17 ton

14 Page 14 2009/10/26 Energy / R / WPRoland Arvidsson Tesla Pris 99.000 EUR, Effekt 248 hk, 0-100 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 %)

15 Page 15 2009/10/26 Energy / R / WPRoland Arvidsson Lillgrund