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TRANSCRIPT
Challenge Cold Climate
Winterwind 2008
December 10th, Norrköping, Sweden
Authors:
Rüdiger Gawrisch, Martin von Mutius
Repower Systems AG
2Winterwind 2008, December 10th, Norrköping, Sweden © 2008 Repower Systems AG
Agenda
Definition of Cold Climate
Market potential in Cold Climates
MM82 CCV – 2MW Turbine
New challenges in Canada
Experiences in China
Conclusion
3Winterwind 2008, December 10th, Norrköping, Sweden © 2008 Repower Systems AG
Definition of Cold Climate
GL Wind-Technical Note 067:
If minimum temperatures of below -20°C have been obser vedduring long term measurements on an average of more thannine days a year, the site is defined as a cold climate site.
Standard Conditions of Use for REpower MM CCV:
Ambient temperature range for operation: -30°C to + 35°C
Ambient temperature range for structure: -40°C to +50°C
4Winterwind 2008, December 10th, Norrköping, Sweden © 2008 Repower Systems AG
Cold Climate Areas
Mean minimum temperature in °C in January (1961-1990)
5Winterwind 2008, December 10th, Norrköping, Sweden © 2008 Repower Systems AG
Agenda
Definition of Cold Climate
Market potential in Cold Climates
MM82 CCV – 2MW Turbine
New challenges in Canada
Experiences in China
Conclusion
6Winterwind 2008, December 10th, Norrköping, Sweden © 2008 Repower Systems AG
Market potential in Cold Climates
China:
Target by 2020: 30,000 MW in total, 70% in cold climates.
Project plans from Honiton Energy* Group: approx. 5,000 MW in Inner Mongolia*Honiton Energy is Partner of REpower in JV REpower North (China)
Canada:
Target by 2020: >10,000 MW in total, 90 % in cold climates
Quebec Tender in total 2,000 MW
Contract of 954 MW for REpower turbines, 100% CCV
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Hydro Quebec Tender
8Winterwind 2008, December 10th, Norrköping, Sweden © 2008 Repower Systems AG
Agenda
Definition of Cold Climate
Market potential in Cold Climates
MM82 CCV – 2MW Turbine
New challenges in Canada
Experiences in China
Conclusion
9Winterwind 2008, December 10th, Norrköping, Sweden © 2008 Repower Systems AG
MM82 CCV - 2 MW Turbine
CCV adaptions :
� Low temperature steel
� Oil and grease
� Reinforced heaters
� Addtional heaters
� Start up procedure
Special requirements for site in Inner Mongolia:
� Dust filter for tower ventilation
� Increased ventilation system due to low air density
10Winterwind 2008, December 10th, Norrköping, Sweden © 2008 Repower Systems AG
MM82 CCV - 2 MW Turbine
Verification of Design and Certification :
� on the basis of GL Wind ‚Technical Note 067‘
� Steel structures according to REpower internal guidelinesbased on expert‘s knowledge with the underlyingguideline DAST Richtlinie 009
� Details of load and component certification have beenagreed between REpower and certification body
� Approval for Design assessment S-Class CCV isongoing and planned to be finished in 2009
11Winterwind 2008, December 10th, Norrköping, Sweden © 2008 Repower Systems AG
Agenda
Definition of Cold Climate
Market potential in Cold Climates
MM82 CCV – 2MW Turbine
New challenges in Canada
Experiences in China
Conclusion
12Winterwind 2008, December 10th, Norrköping, Sweden © 2008 Repower Systems AG
Experience in Inner Mongolia / China
Waiting for erection
13Winterwind 2008, December 10th, Norrköping, Sweden © 2008 Repower Systems AG
Experience in Inner Mongolia / China
Preperation of erection
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Experience in Inner Mongolia / China
Teamwork
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Experience in Inner Mongolia / China
Work interrupted
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Experience in Inner Mongolia / China
Erection starts
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Experience in Inner Mongolia / China
Erection continues
18Winterwind 2008, December 10th, Norrköping, Sweden © 2008 Repower Systems AG
Experience in Inner Mongolia / China
Erection continues
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Experience in Inner Mongolia / China
Erection nearly finished
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Experience in Inner Mongolia / China
Waiting for grid
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Experience in Inner Mongolia / China
Turbine running
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Experience in Inner Mongolia / China
First experiences from 2 MW turbine operation in China:
� heaters performed very satisfactory
� no icing conditiones occurred up to now
� ventilation system with special filters works reliable
� full CCV test period will be in this winter
23Winterwind 2008, December 10th, Norrköping, Sweden © 2008 Repower Systems AG
Agenda
Definition of Cold Climate
Market potential in Cold Climates
MM82 CCV – 2MW Turbine
New challenges in Canada
Experiences in China
Conclusion
24Winterwind 2008, December 10th, Norrköping, Sweden © 2008 Repower Systems AG
New Challenge Canada
A metmast in Quebec, Canada
25Winterwind 2008, December 10th, Norrköping, Sweden © 2008 Repower Systems AG
New Challenge Canada
A metmast in Quebec, Canada
26Winterwind 2008, December 10th, Norrköping, Sweden © 2008 Repower Systems AG
Agenda
Definition of Cold Climate
Market potential in Cold Climates
MM82 CCV – 2MW Turbine
New challenges in Canada
Experiences in China
Conclusion
27Winterwind 2008, December 10th, Norrköping, Sweden © 2008 Repower Systems AG
Conclusion
� Executed concept for low temperatures
� Validation in winter 2008/2009
� Further development is required for sites withicing conditiones
� Components in focus:
Blades and measurement instrumentation
28Winterwind 2008, December 10th, Norrköping, Sweden © 2008 Repower Systems AG
Thank you for your attention!
© 2008 Repower Systems AG
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