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Wind power variation: a highly variable, unreliable and unpredictable source of energy Facts and statistics from the largest wind generator in Germany : E-ON Power variation - per month distributed by E-ON E-ON wind power variation over the year (theoritical max : 7.558 MW) Installed

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wind power variation a highly variable unreliable and unpredictable source of energy

Wind power variation: a highly variable, unreliableand unpredictable source of energy

Facts and statistics

from the largest wind generator

in Germany : E-ON

slide3

E-ON wind power variation over the year (theoritical max : 7.558 MW)

Installed

7558 MW

Daily max

6234 MW

Daily min

8 MW

Installed capacity: 33.200MW including wind 7.558 MW (23%)

Production: 271.300 MWh includ. wind 11.300 MWh (4,16%)

slide5

7500

MW

> ½ Power: 5,1% of the time = 2,7 weeks

> ¼ Puissance: 25% of the time = 13 weeks

18,5%

slide6

Forecasting of wind power is hazardous

January: windy season

Max 80%

Min 3%

Accuracy of prediction : from -50% to +100%

slide7

Sensitivity of windmills to grid stability and

Incapacity of the grid to face windmill output variations

Expansion of wind energy in Germany is not possible without a European-wide cooperation,

because electrical grids in neighboring countries are affected by the instability of

wind energy production in Germany.

Example : Nov 4th 2006, European-wide electrical blackout (wind instability involved).

slide10

The cost of wind produced electricity in Germany

  • Cost of wind energy production in Germany:
  • 2,7 billion € for 26.000 MWh produced = 103 €/MWh
  • Compare with the cost of nuclear power produced in France:
  • Baseload  26
  • 7000h/yr  32
  • 5000h/yr  45
  • 3000h/yr  68
slide11

Wind energyproduction in France

1500 MW

737 MW

Production 2006 : 985 GWh, efficiency 20%

05

06

wind energy in france a good investment for whom
Wind energy in France: a good investment?For whom?
  • On-land windmills:

year 1 to 10: 82 €/MWh

year 10 to 15: 82 €/MWh if less than 2400 h/yr

: 82 to 68 from 2400 to 2800 h/yr

: 82 to 28 from 2800 to 3600 h/yr

: 28 above 3600 h/yr

  • Outre-mer: 110 €/Mwh
  • Off-shore:

year 1 to 10: 130 €/MWh

year 10 to 20: 130 €/MWh if less than 2800 h/yr

: 130 to 90 from 2800 to 3200 h/yr

: 130 to 30 from 3200 àt 3900 h/yr

: 30 above 3600 h/yr

Tax credit on investment: 40%