2010 - Environmental impacts of hydropower
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Transcript of 2010 - Environmental impacts of hydropower
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HydroThe view from the EEA
HidroenergiaLausanne, 17th June 2010
Dr. David ClubbRenewable Energy Project Manager
www.eea.europa.eu
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• Policy
• Resource/constraints
• Environmental factors
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• Policy
• Resource/constraints
• Environmental factors
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http://timeglider.com/app/viewer.php?uid=eea
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objective
subjective
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• Policy
• Resource/constraints
• Environmental factors
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What do others say?
• IEA/ECF – ‘limited increase’
• EREC - 38% increase
• PWC/RWE – 30-100% increase
www.roadmap2050.eu/Volume1_fullreport_PressPack.pdfwww.erec.org/fileadmin/erec_docs/Documents/Publications/ReThinking2050_full%20version_final.pdfwww.pwc.co.uk/pdf/100_percent_renewable_electricity.pdf
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EEA study
• Technical potential
• Environmental potential
• Carried out by AEA
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ECRINS database
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• Selected catchment highlighted.
• Nodes with elevation & mean flow
• Dams
Example of ECRINS extract from PyreneesExample of ECRINS extract from Pyrenees
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Example of catchment data extractExample of catchment data extract
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Assumptions (technical potential)• Qmean and head can be extracted• Water to wire efficiency 70%• Q0 = 75%; CF 50%• O&M 1-2% (ESHA)• Capital costs (ESHA):
(€/kW Installed)
France 1,850 – 4,000Spain 1,000 – 1,500
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……assumptions (technical)• 20 year life span• 10% discount rate• Discounted cash flow analysis for each site
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Assumptions (environmental potential)
• Q0=33%• Reduces potential by 40%
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Limitations• Proximity to grid • Mean flow used• Costs based on a range (site-specific)
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Improvements
• Link road/grid databases with ECRINS• Use multiple years for better mean flow• Refine capital and mitigation costs• Verify with real examples
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• Policy
• Resource/constraints
• Environmental factors
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Environmental factors
•Hydrological character
•Connectivity within system
•Solid material and morphology
•Landscape and biotopes
•Biocoenoses
http://homepages.eawag.ch/~wehrli/papers/Bratrich_GreenHydro_RiverRes_04.pdf
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Comparative effects
http://circa.europa.eu/Public/irc/env/biodiversity_climate/library?l=/contract_biodiversity/report_task_4pdf/_EN_1.0_&a=d
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Innovation
Innovation is a change in the thought process for doing something
It may refer to an incremental emergent or radical and revolutionary changes in thinking, products, processes, or organisations.
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http://circa.europa.eu/Public/irc/env/biodiversity_climate/library?l=/contract_biodiversity/report_task_4pdf/_EN_1.0_&a=d
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Conclusions
•Restricted technical potential
•Focus on adapting business model
•Article 4.7 is sacrosanct
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