Slides for sessions 2 of the webinar Renewable Energy.

1. Session # 2 – October 21, 2010
TODAY’S TOPIC:
WIND ENERGY
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Copyright to this picture: E.ON 2010 1
Concept and Contents Copyright Macademia 2010; Copyright on pictures as indicated; no unauthorized use or publication

2. Session # 2 – October 21, 2010
What we will cover (in a nutshell)
• How Wind Energy developed
• The big challenges to Wind Power
• What our expert expects from Wind Power
• Your own experience with Wind Power
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3. Session # 2 – October 21, 2010
Your visiting scholar today:
Nico Köllner, E.ON Climate & Renewables
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4. Session # 2 – October 21, 2010
Our Schedule for Today
1
1 The background to Wind Power
• History
• How the industry has developed
• Where are we now?
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5. Session # 2 – October 21, 2010
Our Schedule for Today
2
1
2 The big topics in Wind Power
• Development of Turbine Sizes
• Potential for further savings
• Re-powering with huge potential?
• Offshore as the future frontier?
• Small decentralized solutions
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6. Session # 2 – October 21, 2010
Our Schedule for Today
3 Ask the expert
Discussion with Nico Köllner, E.ON Strategy
4 What you should focus on
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7. Session # 2 – October 21, 2010
1
1 The background to Wind Power
• History
- Centuries of experience / Cultural landscapes
- When mechanical turned to electrical use
- Small-scale use and stand-alone solutions until
the 1930s
- Elements of a modern wind turbine and their
functions
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8. Kinderkijk NL - mills for waterdranage; copyright of this picture: molinologe, Gerald Bost
used according to Wikipedia GNU.license for free documentation; available at: http://www.gnu.org/copyleft/fdl.html
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9. Session # 2 – October 21, 2010
1
1 The background to Wind Power
• How the industry developed
- From the standard in the mid-1980s to today’s
wind turbines
- When larger industrial players entered the
scene
- 2010: Global market of € 36 billion (German
industry assoc.)
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10. Session # 2 – October 21, 2010
1
1 The background to Wind Power
• Where are we now?
- 38 GW installed in 2009
- Growing market € +40 bln. expected for 2011
- Attractive export industry: 17.5% of world
market with German origin, 100,000 related jobs
- Turbine size as a crucial factor, 6 MW-Turbines
off the Belgian coast
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11. Session # 2 – October 21, 2010
1 The background to Wind Power
• Where are we now?
- Turbine size as a crucial factor, 6 MW-Turbines
off the Belgian coast
- The importance of the wind regime (cubic relation
between wind speed and wind power)
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12. Session # 2 – October 21, 2010
1 The background to Wind Power
• Participant experience with Wind Power
- What have been positive or negative
experiences with wind?
- How is the public perception of Wind Energy in
your country/region?
- Has it changes over the past couple of years?
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13. Session # 2 – October 21, 2010
2
1
2 The big topics in Wind Power

Development of Turbine Sizes
- New dimension of forces working on turbine and
foundations
- Impact on life cycle, operational efficiency and
reliability
- Relatively little experience compared to other
machine tool industries
- from 2.5 MW upwards (diameters > 110 m)
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14. Copyright to this picture: E.ON 2010
© 2010 Macademia

15. Session # 2 – October 21, 2010
2
1
2 The big topics in Wind Power
• Pushing the costs downwards
- Development towards grid parity essential for
continuous success
- Higher utilization crucial for attracting investors’
funds after bad experiences in past decades
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16. Moving towards optimum capacity of turbines
2500
2000
Leistung pro Anlage, kW/WEA
Power per Unit, kW/Unit
1500
1000
500
0
1987 1992 1997 2002 2007 2010
Source: DEWI, Status der Windenergienutzung in Deutschland, p. 6
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17. Session # 2 – October 21, 2010
2
1
2
2 The big topics in Wind Power
• Re-powering with huge potential?
- Optimized in: design, efficiency, noise
emissions, light reflection, et cetera
- The figures often quoted: half the number of
turbines, twice the capacity, three times the
output
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18. New wind turbines in Hellschen-Heringsand-Unterschaar; copyright of this picture: Dirk Ingo Franke,
used according to Wikipedia GNU.license for free documentation; available at: http://www.gnu.org/copyleft/fdl.html
© 2010 Macademia

19. Session # 2 – October 21, 2010
2
1
2
2 The big topics in Wind Power
• Re-powering with huge potential?
- e.g.: Rheinland-Pfalz (Rhineland-Palatinate):
average size of turbines in mid -1990s
compared to today; potential increase in
Wind’s share in electricity production
- Win-Win situation for all stakeholders?
© 2010 Macademia

20. Session # 2 – October 21, 2010
2
1
2
2 The big topics in Wind Power
• Offshore as the new frontier?
- Roughly twice the output of on-shore due to wind
conditions
- Foundations of up to 700 tonnes p. turbine, height
of 150m
- The cost share of foundations (up to 1/3 of total
costs)
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21. Copyright of this picture: E.ON AG, Germany
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22. Session # 2 – October 21, 2010
2
1
2
2 The big topics in Wind Power
• Offshore as the new frontier?
- Logistically a completely different story to on-shore
- Cooperation crucial (public-private partnerships;
international cooperation; grid system)
- Ambitious goals by North Sea Neighbouring Countries
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23. © 2010 Macademia
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24. Session # 2 – October 21, 2010
2
1
2
2 The big topics in Wind Power
• Small decentralized solutions
- < 50 KW traditionally for electricity supply,
mechanical water pumping, desalinisation,
battery charging
- Problematic in urban areas
- Ambitious goals by North Sea Neighbouring
Countries
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25. Session # 2 – October 21, 2010
2 The big topics in Wind Power
• Other aspects
- Acoustic emissions (mechanical / aero-acoustic)
- Energy payback time
- Approaching theoretical potential/
Limits to mass production
- Extending the grid
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26. Session # 2 – October 21, 2010
3
1
3
2 Ask the expert
• Discussion with Nico Köllner, E.ON Strategy
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27. Session # 2 – October 21, 2010
4
1
4
2 What you should focus on
• Industry Leaders
• Emerging Markets for Wind Power
• Husum Wind Energy Fair
• Development of Chinese and U.S. Markets
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28. Session # 2 – October 21, 2010
...and for next week, please:
• Discuss Wind Power and its perspectives in the Forum
• Sketch the potential of Wind Power in your country/region
• Have a look at Renewables Funding Schemes in your country
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