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

Discover the facts and statistics about wind power variation in Germany, including the challenges and limitations. Explore the impact on electrical grids, the cost of wind energy production, and the need for European-wide cooperation.

jamesrwilson
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Wind power variation: a highly variable, unreliable and unpredictable source of energy

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  1. Wind power variation: a highly variable, unreliableand unpredictable source of energy Facts and statistics from the largest wind generator in Germany : E-ON

  2. Power variation - per month distributed by E-ON

  3. 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%)

  4. Delivered wind power: details of variation per 15 min Gradient: 1000 MW/h

  5. 7500 MW > ½ Power: 5,1% of the time = 2,7 weeks > ¼ Puissance: 25% of the time = 13 weeks 18,5%

  6. Forecasting of wind power is hazardous January: windy season Max 80% Min 3% Accuracy of prediction : from -50% to +100%

  7. 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).

  8. Congestion of high voltage lines in Germany

  9. How many conventional plants are replaced by wind mills ? Max 10% !!!

  10. 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

  11. Wind energyproduction in France 1500 MW 737 MW Production 2006 : 985 GWh, efficiency 20% 05 06

  12. 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%

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