1. The document discusses a session on small hydro power and wind power. It will cover the basics of small hydropower, turbine types, the potential for small hydro, and an interview with an expert from E.ON on wind power. 2. The session will discuss the history and long tradition of hydropower use, from small applications to larger systems. It will also cover the main turbine types used in small hydro systems. 3. Costs for small hydro systems vary widely depending on the type of system and location. Environmental impacts also depend on the system and location, and can include effects on habitat, water flow and quality.

1. 1© 2010 Macademia
Session # 6 – November 18, 2010
TODAY’S TOPIC:
Small Hydro Power
(and a Wind Interview)
Concept and Contents Copyright Macademia 2010; Copyright on pictures as indicated; no unauthorized use or publication
Picture Copyright: E.ON 2010, no further use allowed without permission

2. 2© 2010 Macademia
Where are we now?
Policy
approachesWind Solar PV Funding
Solar
Thermal
SHP & Wind
Interview
Session # 6 – November 18, 2010

3. 3© 2010 Macademia
What we will cover
• History and Basics of Small Hydropower
• Main turbine types and applications
• The Renaissance of Small Hydro/Potential
• Going back to Wind: Interview with Nico Köllner
Picture Copyright to Thermovolt France S.A.S., no further use allowed without permission
Session # 6 – November 18, 2010

4. 4© 2010 Macademia
Your visiting scholar today:Your visiting scholar today:
Nico Köllner, E.ON Climate & Renewables
Session # 6 – November 18, 2010

5. 5© 2010 Macademia
• Definition of Small Hydro
• Centuries of Hydropower use
• From small turbine applications to large hydro
• Main types of systems used
1 The Basics of Small Hydropower
Our Schedule for Today
Session # 6 – November 18, 2010

6. 6© 2010 Macademia
• Efficiency and types of turbine systems
• Costs depending on system
• Locations and Environmental Impact
• Potential for Small Hydropower
2 Key Topics in Small Hydropower
Our Schedule for Today
Session # 6 – November 18, 2010

7. 7© 2010 Macademia
• The Link to Small Hydropower
• From Turbine Sizes to the Location – key factors
• Future Challenges
3 A look back to Wind Power
Our Schedule for Today
Session # 6 – November 18, 2010

8. 8© 2010 Macademia
A Country
Before we start…
B Data C Business
• What is happening in the Forum?
Session # 6 – November 18, 2010

9. 9© 2010 Macademia
• The definition of ‘small hydro’ – no standardization
• Upper Limits from 2.5 MW – 30 MW
• Frequently used: 10 MW capacity
• Substantial impact of “small systems”
1 The Basics of Small Hydropower
Session # 6 – November 18, 2010

10. 10© 2010 Macademia
• A long mechanical tradition –
at different development stages
• Water turbine development in France / 19th century
• 1880s – larger scale electricity generation
• Early 20th century: development of today’s technology
1 Centuries of traditional use
Session # 6 – November 18, 2010

11. 11© 2010 Macademia
1 From small applications to Large Hydro
• A tendency to larger units throughout 20th century
• Particularly 1930s to 1970s
• As with other renewables: renewed interest after oil
crises in the 1970s
Session # 6 – November 18, 2010

12. 12© 2010 Macademia
1 Main Types of Systems
• High-head system
• Low-head system
• Supplemental systems
- irrigation
- drinking water supply
- agricultural purposes
Session # 6 – November 18, 2010

13. 13© 2010 Macademia
2 Key Topics: Costs
• Main Components for Small-Hydropower
- Engineering Expenditures
- Electrical Equipment / Material used
- Turbine System
• Costs shared very unevenly depending on type of
system used
Session # 6 – November 18, 2010

14. 14© 2010 Macademia
2 Key Topics: Costs
• Best Competitiveness
- Good site / location with appropriate topography
- Suitable for system with relatively low investment costs
• Wide range of investment costs and availability of
systems
Session # 6 – November 18, 2010

15. 15© 2010 Macademia
Session # 6 – November 18, 2010
2 Key Topics: Environmental Impacts
• Potential impacts of Small Hydropower
- Impact on ground-water level
- Natural habitat
- Fish migration routes
- Water quality issues
- River flow characteristics

16. 16© 2010 Macademia
Session # 6 – November 18, 2010
2 Key Topics: Environmental Impacts
• Potential impacts of Small Hydropower
- Cleaning up garbage
- Enhance water quality
- Green regional energy supply

17. 17© 2010 Macademia
0
500
1000
1500
2000
2500
1987 1992 1997 2002 2007 2010
PowerperUnit,kW/Unit
LeistungproAnlage,kW/WEA
Moving towards optimum capacity of turbines
Source: DEWI, Status der Windenergienutzung in Deutschland, p. 6

18. 18© 2010 Macademia
• Discussion with Nico Köllner, E.ON
3 Interview with our expert
Session # 6 – November 18, 2010

19. 19© 2010 Macademia
• Development of Turbine Sizes
• Potential for further savings
• Repowering with huge potential?
• Offshore as the future frontier?
• Small decentralized solutions
The big topics in Wind Power
Session # 6 – November 18, 2010

20. 20© 2010 Macademia
• Think about a Renewables portfolio for your country
• Which technologies would you recommend?
• Which policy instruments would you use?
...and for next week, please:
Session # 6 – November 18, 2010

21. 21© 2010 Macademia
Your visiting scholar next week:
Alexander Saier United Nations Framework Convention
on Climate Change, Cancun (invited, tbc)
Session # 6 – November 18, 2010