Marginal production technologies for life cycle inventories

  • Bo P. Weidema
  • Niels Frees
  • Anne-Merete Nielsen
LCA methodology

Abstract

Marginal technologies are defined as the technologies actually affected by the small changes in demand typically studied in prospective, comparative life cycle assessments. Using data on marginal technologies thus give the best reflection of the actual consequences of a decision. Furthermore, data on marginal technologies are easier to collect, more precise, and more stable in time than data on average technologies. A 5-step procedure is suggested to identify the marginal technologies. The step-wise procedure first clarifies the situation in which the marginal should apply, and then identifies what specific technology is marginal in this situation. The procedure is illustrated in two examples: European electricity production and pulp and paper production.

Keywords

European electricity scenario marginal technology LCA Life Cycle Assessment (LCA) methodology marginal technology marginal technology LCA pulp and paper production marginal technology LCA 

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References

  1. Bergstedt A (1994): Fremstilling af træmasse. Lecture notes. Copenhagen: Royal Agricultural UniversityGoogle Scholar
  2. Bergstedt A (personal communication): Royal Agricultural University, DenmarkGoogle Scholar
  3. Clift R, Frischknecht R, Huppes G, Tillman A-M, Weidema B P (1998): Towards a coherent approach to life cycle inventory analysis. Brussels: SETACGoogle Scholar
  4. Ekvall T, Frees N, Nielsen P H, Person L, Ryberg A, Weidema B, Wesnaes M, Widheden J (1998): Life cycle assessment of packaging systems for beer and soft drinks. Main report. Copenhagen: MiljøstyrelsenGoogle Scholar
  5. Energistyrclsen (1995): Teknologidata for elog varmeproduktionsanlseg. Copenhagen: EnergistyrelsenGoogle Scholar
  6. European Commission (1995): Nuclear Industries in the Community — The nuclear power station design and construction industry and completion of the European market. Information energy Europe sheet 23. Brussels: European CommissionGoogle Scholar
  7. European Commission (1996): European Energy to 2020: A scenario approach. Luxembourg: Office for Official Publications of the European CommunitiesGoogle Scholar
  8. European Commission (1997): Energy policies and trends in the European Community. Luxembourg: Office for Official Publications of the European CommunitiesGoogle Scholar
  9. Eurostat (1997a): Energy Balance Sheets 1994-1995. Luxembourg: Statistical Office of the European CommunitiesGoogle Scholar
  10. Eurostat (1997b): Energy Yearly Statistics 1995. Luxembourg: Statistical Office of the European CommunitiesGoogle Scholar
  11. FAO (1997): State of worlds forests. http://www.fao.org/waicent/faoinfo/forestry/sofotoc.htmGoogle Scholar
  12. Frees N, Weidema B P (1998): Life cycle assessment of packaging systems for beer and soft drinks. Technical Report 7: Energy and transport scenarios. Copenhagen: MiljøstyrelsenGoogle Scholar
  13. Frischknecht R (1998): Life cycle inventory analysis for decision making. Ph.D. thesis. Zurich: ETH-Zentrum/UNLGoogle Scholar
  14. Hammar T (1997): Nordisk elmarked på vej mod år 2000. Energinyt 8(2):14–15.Google Scholar
  15. Karlson L (personal communication): Swedish Paper and Cellulose Engineers Association (SPCI)Google Scholar
  16. Larsen H (personal communication): Sjællandske Kraftværker, DenmarkGoogle Scholar
  17. Lindfors L-G, Christiansen K, Hoffmann L, Virtanen Y, Juntilla V, Hanssen O-J, Rønning A, Ekvall T (1995): Average/marginal considerations. LCA-NORDIC Technical reports No 6. Copenhagen: Nordic Council of Ministers. (TemaNord 1995:502)Google Scholar
  18. Nordel (1996) Annual report 1996. Helsinki: NordelGoogle Scholar
  19. OECD (1997): Energy statistics of OECD countries 1994-95. Paris: OECDGoogle Scholar
  20. Tillman A-M (1998): Significance of decision making for LCA methodology. Key-note lecture at the 8th Annual Meeting of SETAC-Europe, 1998.04.14-18, BordeauxGoogle Scholar
  21. Tillman A-M,Svingby M,Lundström H (1998): Life cycle assessment of municipal waste water systems — A case study. International Journal of Life Cycle Assessment (in press)Google Scholar
  22. Tsuomis, G (1991): Science and technology of wood. New York: Van Nostrand ReinholdGoogle Scholar
  23. Udo de Haes H A, Clift R, Griesshammer R, Grisel L, Jensen A A (1996): Practical guidelines for life cycle assessment for the EU ecolabelling programme. Leiden: CML, Leiden UniversityGoogle Scholar
  24. Weidema B P (1993): Market aspects in product life cycle inventory methodology. Journal of Cleaner Production 1(3–4):161–166CrossRefGoogle Scholar
  25. Weidema B P (1997): Environmental assessment of products. A textbook. 3rd edition. Helsinki: UETP-EEE (Fax: +358 92291 2911)Google Scholar
  26. Weidema B P (1998): Application typologies for life cycle assessment — A review. Int. J. LCA 3 (4): 237–240CrossRefGoogle Scholar
  27. Weidema B P, Wesnaes M S, Erichsen H L, Rydberg T, Eriksson E, Person P, Frees N (1997): Life cycle assessment of packaging systems for beer and soft drinks. Report A: Definition of Goal and scope. Results of the preliminary investigation. Copenhagen: MiljøstyrelsenGoogle Scholar

Copyright information

© Ecomed Publishers 1999

Authors and Affiliations

  • Bo P. Weidema
    • 1
  • Niels Frees
    • 1
  • Anne-Merete Nielsen
    • 1
  1. 1.Institute for Product DevelopmentLyngbyDenmark

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