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Role and potential of renewable energy and energy efficiency for global energy supply

  • The analysis of different global energy scenarios in part I of the report confirms that the exploitation of energy efficiency potentials and the use of renewable energies play a key role in reaching global CO2 reduction targets. An assessment on the basis of a broad literature research in part II shows that the technical potentials of renewable energy technologies are a multiple of today's global final energy consumption. The analysis of cost estimates for renewable electricity generation technologies and even long term cost projections across the key studies in part III demonstrates that assumptions are in reasonable agreement. In part IV it is shown that by implementing technical potentials for energy efficiency improvements in demand andThe analysis of different global energy scenarios in part I of the report confirms that the exploitation of energy efficiency potentials and the use of renewable energies play a key role in reaching global CO2 reduction targets. An assessment on the basis of a broad literature research in part II shows that the technical potentials of renewable energy technologies are a multiple of today's global final energy consumption. The analysis of cost estimates for renewable electricity generation technologies and even long term cost projections across the key studies in part III demonstrates that assumptions are in reasonable agreement. In part IV it is shown that by implementing technical potentials for energy efficiency improvements in demand and supply sectors by 2050 can be limited to 48% of primary energy supply in IEA's "Energy Technology Perspectives" baseline scenario. It was found that a large potential for cost-effective measures exists, equivalent to around 55-60% of energy savings of all included efficiency measures (part V). The results of the analysis on behavioural changes in part VI show that behavioural dimensions are not sufficiently included in energy scenarios. Accordingly major research challenges are revealed.show moreshow less

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Metadaten
Document Type:Report
Author:Wolfram Krewitt, Kristina Nienhaus, Corinna Kleßmann, Carolin Capone, Eva Stricker, Wina Graus, Monique Hoogwijk, Nikolaus Supersberger, Uta von Winterfeld, Sascha SamadiORCiD
Publisher:Umweltbundesamt
Place of publication:Dessau-Roßlau
Year of Publication:2009
Number of page:336
Series Title (English):Climate change
Volume:2009,18
Language:English
External link:https://nbn-resolving.org/urn:nbn:de:kobv:109-opus-83759
Divisions:Zukünftige Energie- und Industriesysteme
Dewey Decimal Classification:600 Technik, Medizin, angewandte Wissenschaften