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   Biodiesel  evaluated  
There are various substitutes for diesel fuel ranging from biodiesel (e.g. oil esters from rape seed) to "synthetic" fuels. The following evaluation refers to rape oil methyl-ester (RME). Biodiesel can be used on all diesel engines with slight or no modification. Blending with conventional diesel is possible.
Technology field: Optimisation of traction technologies
open main section General information
open main section General criteria
open main section Environmental criteria
close main section Economic criteria
  close sub-section Vehicle - fix costs: low
    There are some minor costs for modifying diesel engines (replacing non-RME-resistant components). The experiences from the automotive sector (bus fleet of German KWH – Kreiswerke Heinsberg) show refitting costs that are appreciably lower than for a refit necessary for natural gas use: about 3.500 EURO compared to 35.000 EURO per vehicle. These figures may not be transferable to railways.
  Vehicle - running costs: not applicable
    According to EU Commssion, price for biodiesel is currently about 0.30 EURO higher than diesel price (also depends on mineral oil taxation). German DB AG calculates about 0,50 to 0,60 EURO/litre for RME, 20-25% more than for diesel.
  Infrastructure - fix costs: medium
    There will be costs for RME supply infrastructure (additional tanks in service stations etc.). Since a complete transition of the diesel fleet to RME is extremely doubtful, this infrastructure would be additional.
  Infrastructure - running costs: increased
    Parallel (RME diesel) infrastructure involving fuel supply and storage etc. would cause additional running costs.
  Scale effects: low
    Limitations for a wide-spread introduction will impede major scale effects.
  Amortisation: not applicable
    No amortisation due to increased running costs!
open main section Application outside railway sector
open main section Overall rating
References / Links:  Bünder 2001;  DB AG, Zentralbereich 1996;  Hörl et al. 2001;  IFEU 2000;  Institute of Transport... 2001;  Nolte et al. 1998;  Umweltbundesamt 2000;  UNDP 1997;  Pfretzschner (1997)
Attachments:
Related projects:  Energy chains of alternative fuels
Contact persons:
 date created: 2002-10-09
 
 
© UIC - International Union of Railways 2003
 
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