ENERCON 3 MW and 7,5 MW Portfolio E-82 E3 , E-101 and E-126

Juan Ruiz-Jarabo Director General GmbH Sucursal en España ENERCON WEC – Continuous Technological Development

The Wind Energy Market

ENERCON‘s Technology – Benefit for the Customer

Future Development

2 Wind Energy in Germany in 2009

Multibrid 1.6% GE 1.2% Fuhrländer 1.9% 4.9% Others 1.9%

Repower 8.8% MW ENERCON 7.000 60.4% 391 19.5% 6.000

5.000 402 4.000 341 installed capacity in 2009 193 157 3.000 installed capacity end of 2008

2.000 67 94 50 25 1.000 25 56 30 7 6 12 0 0 t n en urg hal tein len er falz en en en ern erg en nd urg rlin chs nb An ols stfa mm -P chs ring ess ay mb rem arla mb Be rsa nde en- -H We rpo and Sa hü H B rtte B Sa Ha de ra hs wig in- Vo inl T Wü Nie B Sac les rhe rg- Rhe n- Sch ord nbu ade N ckle B Me sources: DEWI January 2010, BWE February 2010 3 Wind Energy in Europe in 2009

Until the end of 2009 76.6 GW wind Market share in Europe 2009 energy capacity were installed in Europe. Vestas 27% 38% ENERCON 10,526 1917 25% 25000 22% 22500 92% 7% 60% 4% Others 5% Gamesa 20000 2459 3% 13% 60% 17500 Alstom 3% Siemens REpower 6% 10% 15000 33% Nordex 8% 17% MW 12500 ENERCON market shares in the main European markets in 2009 10000 57% 9% 29% 24% 7500 1114 1088 2009 ~ 5000 1077 334 673 until the end of 2008 ~ 39 2500 512 233 102 0 343 181 149 2 0

n ly l e a d y a ds en nd c ri It nce ga ark n e many u a ela st urkey lan lgium r Spai ra rl Ir re T orwa F Swed G Au Po Be N Europe Ge Kingdom Port Denm ted Nethe Uni source: EWEA Wind in Power, February 2010; BTM Consult World Market Update, March 2010 4 Wind Energy worldwide in 2009

Until the end of 2008 157.9 GW wind energy were installed worldwide. MW 9922 37,466 35000 32500 Dongfang 6.5% 30000 Sinovel 9.2% 27500 1917 7.2% 13000 Siemens 5.9% 25000 Repower 3.4% 22500 Suzlon 6.4% 20000 2459 17500 15000 Gamesa 6.7% Others 18.5% 12500 1271 GE Wind 12.4% ENERCON~ 8.5% 10000 ~ ~ Vestas 12.5% ~ 7500 1114 2009 5000 1088 1077 673 334 950 until the end of 2008 39 178 2500 406 512 233 102 0 343 181 264 149 171 78 2 0

a n ly l n d d n ny i a ce a ds an SA a a ndia It ada de and an lan U m I gdom lan urkey iw Chi Sp ran n r Japan we Irel T Brazil ea a er F i Can S Greece Austria Pol Belgium Z T Norway G K Portug Denmark the Australia d e worldwide te N New ni U sources: GWEC Press Release, February 2010; BTM World Market Update, March 2010 5 ENERCON WEC – Continuous Technological Development

The Wind Energy Market

ENERCON‘s Technology – Benefit for the Customer

Future Development

6 Gearless Technology: 18 years of experience

Principle of an ENERCON WEC

1 Main carrier

2 Yaw motor

3 Annual generator

4 Blade adapter

5 Rotor hub

6 Rotor blade

6

7 Principle of an ENERCON WEC Advantages of the direct drive

versus

* 20 years lifetime 8 ENERCON‘s rotor blades – highest efficiency

Comparison of the powercurve measurements‘ c(p): E-82 and conventional WEC Design of 0,70 ENERCON

0,60

0,50

0,40

0,30 Conventional 0,20 design power coefficient c(p) coefficient power 0,10

0,00 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 wind speed v (m/s) E-82 (measured) conventional WEC (measured) theoretical c(p)

theoretical c(p) max = 0,593

9 ENERCON‘s De-Icing System Icing Risks

Icing regions in Europe Ultrasonic Anemometer Tower of WEC

Source of the map: DEWI magazin no. 13, 08/1998 10 ENERCON‘s De-Icing System Test of rotor blade de-icing system performance

Ventilator Air heating element

Air flow of warm air ventilation in rotor blade.

11 ENERCON‘s De-Icing System Test of rotor blade de-icing system performance

difference in yield per month between heated und unheated WEC E-82 2MW at location in Czech Republic

WEC 10 heating on WEC 11 heating off yield difference

700.000 624.542 600.000 600.242 561.997 500.829 500.000 485.916 430.979 416.687 400.000 335.797 284.685 300.000 280.904 265.859 249.303

energy yield [kWh] energyyield 200.000 138.626 132.002 86.494

100.000 69.850 38.245 15.045 0 Okt 09 Nov 09 Dez 09 Jan 10 Feb 10 Mrz 10

Energy difference: Sweden 854.000 kWh Czech Rep. 732.000 kWh

12 ENERCON – Storm Power Curve

1000 900 ve va 800 700 600 500 400 Power[P] 300 200 Winddistribution [h/a] 100

0 1 5 9 13 17 21 25 29 33 37 Wind speed [m/s]

13 Development of Tower Heights 2003 – 2009

Yield comparison inland Germany, March 2009 – February 2010 ENERCON E-82 with 108m and 138m hub height

Additional yield factor 1,28

kWh 6.080.263 4.740.792

E82 E82 hub height: 108m hub height: 138m 898 kWh/m² 1.151 kWh/m² 84 m 97 m 108 m 138 m average of 3 WECs avarage of 2 WECs

14 Convincing product range

E-10 (30 kW) E-33 (330kW) E-53 (800kW) E-70 (2.300kW) E-82 (2.000kW) E-126 (6.000kW) E-20 (100kW) E-48 (800kW) E-82 (2.300kW) E-44 (900kW) E-30 E-40 E-66 E-112

Quantity of installed WEC 3 657 7,365 6,251 2,106 26

total: 16,364 ENERCON WEC installed

Last revised: 08.06.2010 15 Reliable Service and Maintenance

Availability = Profit service contracts worldwide (WEC) The „ENERCON Partner Konzept“ (EPK) ~ is a full warranty maintenance and service EPKEPK 88% 88% contract ~ since 1994 12 – 15 years contract term MaintenanceWartungsvertrag ~ 7% ~ guarantees the customer a technical availability of 97 % AndereOthers 5% 5% ~ fixed operating costs 1 Results of several thousand customer reports on ~ uncomplicated, quick and efficient damage satisfaction with performed services repairs by professional ENERCON service teams 1,5 ~ worldwide offered 2 average technical ENERCON availability: better Average of 2,5 competitors 2006: 98,6% 3 2007: 98,6% 2008: 98,5% 3,5 2009: 98,3% 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009

16 ENERCON WEC – Continuous Technological Development

The Wind Energy Market

ENERCON‘s Technology – Benefit for the Customer

Future Development

17 Continuous technological development

Dec. 1995 July 1999 Dec. 2002 Dec. 2003 Dec. 2005 June 2009 March 2010 E-66 / 15.66 E-66 / 18.70 E-66 / 20.70 E-70 E4 E-82 E-82 E2 E-82 E3 Ø: 66 m, 1500 kW Ø: 70 m, 1800 kW Ø: 70 m, 2000 kW Ø: 71 m, 2300 kW Ø: 82 m, 2000 kW Ø: 82 m, 2300 kW Ø: 82 m, 3000 kW

376 WEC 1,827 WEC 283 WEC 3,108 WEC 1,903 WEC 200 WEC 3 WEC

New or Blades Main carrier (Cast) Blades Blades Main carrier Blades optimised: Generator Blade adapter Tower Hub Generator Main carrier (Geared ball bear) Hub Hub Blade adapter Cooling system Inverter (600kW) Blades Cooling system Blade adapter Generator Axle pin Hub Generator Generator Axle pin Blade adapter Tower Axle pin Axle pin Inverter (300 kW) total: 7,920 WEC Tower

energy yield + 74 % (site with v = 7 m/s)

Last revised: 08.06.2010 18 Continuous technological development E-82 E2 2,300 kW

The E-82 E2 is an advancement of the current E-82. Type: E-82 E2 Rated power: 2,300 kW Rotor diameter: 82 m Hub heights: 78 m – 138 m Wind class: IIA

Stator shield: new development

19 Continuous technological development E-82 E3 3,000 kW

The E-82 E3 is an advancement of the E-82 Type: E-82 E3 Rated power: 3,000 kW Rotor diameter: 82 m Hub heights: 85 m (IA), 78 m – 138 m (IIA) Wind class: IA/IIA

20 Continuous technological development E-101 3,000 kW

The E-101 is a completely new development. Power Curve E-101 (Standard Air Density) Type: E-101 3.000 Rated power: 3,000 kW 2.500 Rotor diameter: 101 m 2.000

Hub heights: 99 m – 135 m 1.500

1.000

Wind class: IIA PowerP [kW]

500

0 0 5 10 15 20 25 Wind Speed v in Hub Height [m/s]

Power Coefficient E-101 (Standard Air Density)

0,60

0,50 [ - ] p 0,40

0,30

0,20

0,10 PowerCoefficient c

0,00 0 5 10 15 20 25 Wind Speed v in Hub Height [m/s]

21 Continuous technological development E-101 3,000 kW

Generator Stator only

22 Continuous technological development E-101 3,000 kW

E-82 E2 E-101

23 Continuous technological development E-101 3,000 kW – Towers and Rotor Blades

E-101 E-101 Rotor blades E1/BF/097/17/01 E1/BF/133/27/01 ~ One-piece rotor blade made off ~ Blade heating system ~ Trailing edge section (spoiler) ~ Integrated load control test point

24 Continuous technological development E-126 7,500 kW

The E-126 7.5 MW is an advancement of the current E-126 Type: E-126 Rated power: 7,500 kW Rotor diameter: 127 m Hub height: 135 m Wind class: IA

25 Future Development of Wind Energy Use in Germany

Installed Capacity in Germany in MW/a

Source: DEWI WindEnergy Study 2008 26 Market Position

market share (%) Domestic Regional Global Supplier Supplier Supplier

14%

GE Wind Vestas

10% Sinovel ENERCON Goldwind Suzlon Gamesa 6% Dongfang Siemens

REpower

5 10 15 20 25 market presence (number of countries with >50MW/a)

Source: BTM Consult, World Market Update, March 2010 27 ENERCONs quality principle

Continuous growth without decline in quality, as quality is customer satisfaction.

> 20.7 GW installed Sales regions in Europe Northern Europe Iberian Peninsula Central Europe Mediterranean Eastern Europe Germany Baltic States Sales overseas – expansion Argentinia Brazil Canada (new sales office!) active markets New Zealand / Australia Taiwan / Japan Human resource development: > 125 employees within the sales department +20% compared to Dec. 2008

28 Thank you for your attention !

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