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(64-06) Use of LCA and monetary valuation to assess environmental impacts. Merle, Marie*,1, Santoni, Laure2, 1 EDF R&D - Les Renardières-Ecuelles, Moret sur Loing cedex, France2 EDF R&D - 6 quai Watier, Chatou cedex, France ABSTRACT- In the context of electricity production, EDF has developped for several years a research programm on LCA and monetary valuation of environmental impacts. Whereas both attempt to assess the impact of products or processes on environment, they have used quite different approaches.The presentation deals with relations between LCA and the approach used in the ExternE project, i.e. Dose Response and external costs. Firstly, based on the state of the art, both methodologies are compared one with another, listing their main advantages and restrictions : concerning the inventory step, LCA considers a broader range of emissions and consumptions whereas the DR approach only considers priority emissions. Concerning the impact assessement caracterisation, the DR approach calculates each pollutant dispersion and real impacts while LCIA is rather a non site-specific method and calculates potential impacts. Secondly, the last evolutions of both methodologies and their eventual complementarity are debated. Indeed, site-specific informations and models are now improving Life Cycle Impact Assessment whereas simplifications of usual models in DR approach are also made. New methodological developments may even bring both approaches closer in the future. The impact on the final result of last monetary valuation developments is also debated, especially concerning the ExternE project. Finally, recommandations on the best use of LCA and external costs approach, as a decision-making tool in the energy field, can be proposed. Key words: ACV, external costs |
