1. Currently installed capacity
Germany: 30 June 2011
Total of installed capacity = 27.981 MW
21.917 wind energy plants
Percentage on net electricity consumption: 7,4
Average of installed capacity per turbine: 1.26 MW
freundederkuenste.de
Differences between the federal states:
-Almost a quarter of the wind energy produced in Germany is
produced in Lower Saxony (6664 MW)
-The largest share of energy supply through wind energy has
Sachsen-Anhalt (52,1%)
-The lowest share of energy supply through wind energy has
Berlin (near 0%)
Sources: „DEWI“, Deutsche Windindustrie, Bundesverband WindEnergie e.V.

2. Sources: „DEWI“, Wikipedia

3. France: 31 Dec. 2010:
Total of installed capacity = 5660 MW
4400 wind energy plants
Percentage on net electricity consumption: 1,9
Average of installed capacity per turbine: 1.26 MW
Leading regions are (2011):
-Champagne-Ardenne (870 MW)
Source: pictonale.net
-Picardie (776 MW)
Bretagne (659 MW)
The lowest rates are in:
-Ile de France (0,06 MW)
-Aquitaine (0 MW)
-Alsace (0 MW)
Source: bretagne.fr
Sources: wind-energie.de, Wikipedia Source:
ntrmonde.blogspot.com

5. Repowering
Source: windmesse.de

6. Replacing old equipment
Before
After
Source: ulrich-kelber.de

7. Technical Renewal

8. Profitability

9. Profitability (Germany)

10. The target
Cost
Time
renewable fossil energy -
energy -

11. Advantages and disadvantages of wind energy
Advantages Disadvantages
environmentally friendly wind turbines generally produce
much less electricity than the
average fossil fuelled power
station (at the moment...)
the wind is free expensive (at the moment...)
wind turbines take up less space not aesthetic
than the average power station
safe energy, there will always be wind is irregular
wind
new jobs noisy (at the moment...)
even countries without natural wind energy cannot be stocked yet
resources can produce wind energy

12. How many households can be supplied by a 1MW wind turbine?
1 MW = 1000 kW
Full load hours (when the turbine produces the maximum)
in wind energy: ca. 1550h/8760h (utilization rate = ca.17,7%)
1000 kW x 1550 h = 1.550.000 kWh
An average household consumes app. 3500 kWh a year
1.550.000 kWh / 3500 kWh = 442
(A car consumes one kilowatt-hour for every kilometer)
A 1MW wind turbine can supply app. 442 households
(just imagine a 5MW turbine..)
(note:This calculation is very imprecise,
it was just to give you an idea how much energy a wind turbine can produce)

13. Outlook

14. Energy source comparison

15. Outlook (Germany)
Source: Spiegel.de

16. Future Projects

17. Synthesis
To achieve a long-term safe and environmentally friendly energy supply:
- greater use of renewable energies
- state subsidies (at the moment..)
- technical renewal of old equipment
What the states do:
-China:2006 2,6 MW 2011 52MW(!!!)Goal 2020 200MW
Examples of wind parks: Dabancheng(500MW) ; Project: Gansu (20000MW)
-USA: 44,7 MW
Examples of wind parks: Roscoe Wind Farm(781MW); Project: Titan (5050MW)
-Germany: 27981 MW
Examples of wind parks: Alpha Ventus (60 MW); Project: BARD Offshore 1 (400 MW)
-France: 5660MW Major Project: Parc éolien en mer des Deux Côtes (705 MW)
Source: Wikipedia écrit par David WinHöfel et Christian Döbereiner