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: 96 11 23

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3

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--961123: WWEA

98%

:,,

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9.0/

0.8/1.2/

1.7/3.5/()

2.0

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10.250.37 1

1 CO23.5NOx6.1SO2

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Annual Wind Power DevelopmentActu al 1990-2006 & Fo recast 2007-2011

0

5,000

10,000

15,000

20,000

25,000

30,000

35,000

40,000

1990 1995 2000 2006 2011

MW

Europe USA Asia Rest of World ExistingSource: BTM Consult ApS - March 2007

: BTM

20%30%

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200673,904MW14,900MW2006

25.3%2010160,000MW2006 ~ 2010

20%

: WWEA

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--961123: BTM

2006Installed Accu. Installed Accu. % of installed

MW MW MW MW MW

2005 2005 2006 2006 2006

Total Americas 2,671 10,062 3,515 13,577 23.4%Total Europe 6,372 41,044 7,682 48,627 51.2%

Total South & East Asia 1,971 5,753 3,220 8,963 21.4%

Total OECD-Pacific 484 2,137 491 2,628 3.3%

Total Africa 44 278 109 386 0.7%

Total other continents and

areas: 0 124 0.0 124 0.0%

Annual MW installed

capacity 11,542 15,016

Cumulative MW installed

in the world 59,398 74,306

Source: BTM Consult ApS - March 2007

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2006

: WWEA

53247MW

72%

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--961123: BTM

200577.8%(200485.5%; 200375%)

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200682.4%(200577.8%; 200485.5%; 200375%)

Top-10 Supp liers in 2006% of the to tal market 15,016 MW

GAMESA (ES)

15.6%

GE WIND (US)

15.5% ENERCON (GE)

15.4%

SUZLON (Ind)7.7%

SIEMENS (DK)

7.3%

Others

4.6% GOLDWIND (PRC)

2.8%

ACCIONA (ES)

2.8%

VESTAS (DK)

28.2%REPOWER (GE)

3.2%

NORDEX (GE)

3.4%

Source: BTM Consult ApS - March 2007

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2006

0 500 1000 1500 2000 2500 3000 3500 4000 4500

Vestas

Gamesa

GE Wind

Enercon

Suzlon

Siemens

Nordex

Repower

Acciona

GoldWind

MW

(MW) (MW)

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--961123: 96.03.11

--96.03.081. 202020%2. 2020199020%3. 202010%4. 5. 2010

LED

1. 2. 3. 4. 5. 6.

7.

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1()2006WWEA (2007/02)

5,000 MW

(2010)

20,000 MW

(2011)

28,000 MW

(2010)

30,000 MW

(2010)

100,000MW

(2020)

()

3,136 MW11,615 MW20,622 MW11,603 MW2006

8MW

(0.3%)

1,587MW

(15.8%)

2,194MW

(11.9%)

2,454MW

(26..8%)

20061( )

2,159MW(2010)

3,000MW(2010)

11,800MW(2030)

30,000MW(2020)

100,000MW

(2030)

400,000MW

(2050)

12,000MW(2012)()

6,270 MW

1,840 MW

(41.5%)

103.7 MW1,394 MW2,405 MW2006

79.8 MW

(600%)

354 MW

(34%)

1,145 MW

(90.93%)

20061( )

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2040

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Pe = Pw Cpmg Cp ()

0.59 {Betz limit} g()

50 ,80

m()

95

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Power in the Wind(W/m2)

Density = P/(RxT)P - pressure (Pa)R - specific gas constant (287 J/kgK)

T - air temperature (K)

= 1/2 x air density x swept rotor area x (wind speed)3

A V3

Area = r2 Instantaneous Speed

(not mean speed)

kg/m3 m2 m/s

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25

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26

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vs

27

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vs

28

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(20kw)

()

H

H

29

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()

30

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:

+

31

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3m/sec(2m/sec)

32

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33

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1.2.

3.1.

!!2.

1.2. 3.4.(

)5. 6.

1. 2. 3. 4. 5.

1. 2. 3. 4.

1. 2.

34

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35

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36

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Wake loss3~6

Ris National Lab.

37

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shadow flicker

38

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(wind mill)

(wind turbine)

wind farm

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40

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Grid Connection

Hybrid System

41

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15 x 1528 x 8243

6045 3323.51,750660

Vestas 660 Vestas 1,750

70 0

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0

10 0

20 0

30 0

40 0

50 0

60 0

0 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4 2 5

4 m/s

15 m/s

25 m/s

3 ~ 4 /25/

60/

20

Vestas V47-660 kW

43

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44

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Yaw

45

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(Rotor blade) (Hub) (Main Bearing) (Rotor control)

(Gear box) (Shafting) (Generator) (Disc Brake & caliper) (Machine bed)

(Spinner & Nacelle) (Yaw-gear) (Meteorological sensors) (Tower & Foundation) (Converter)

(Control panel) (Scada software) (Cooling system) (Lighting protection) (Ladder & lift)

(Underground Cable)