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   Coupling of parked trains for common energy supply  evaluated  
Connecting parked trains electrically to facilitate a common energy supply improves the efficiency of heating and lighting during overnight standstill periods in those passenger trains which cannot be easily connected to the regular stationary grid.
Technology field: Optimisation of comfort functions
open main section General information
close main section General criteria
  close sub-section Status of development: in use
    (no details available)
  Time horizon for broad application: in < 2 years
    (no details available)
  Expected technological development: basically exploited
    (no details available)
    Motivation:
    Energy saving
  Benefits (other than environmental): none
    (no details available)
  Barriers: medium
   

Occurrence of parked train pairs

The measure saves energy only if two train sets happen to stand together in the stand-still areas and can be electrically connected. According to DSB, this holds for about 50% of the cases.

Co-operation of personnel

The success of such a measure depends on the personnel, who has to connect parked trains electrically pair-wise whenever possible. This may be seen as an extra effort and be confronted with the reluctance of those involved.
    Success factors:
    An assessment of current practice of energy supply in parked trains could reveal potential for this or similar optimisation measures.
  Applicability for railway segments: low
    Type of traction:  electric - DC, electric - AC
    Type of transportation:  passenger - main lines, passenger - high speed, passenger - regional lines, passenger - suburban lines
    The measure makes only sense for those vehicles which cannot be connected to the regular stationary grid when parked. Usually this is the case for a limited number of train classes such as the ER4 at DSB.
    Grade of diffusion into railway markets:
  Diffusion into relevant segment of fleet: < 5%
  Share of newly purchased stock: < 20%
    (no details available)
  Market potential (railways): low
    (no details available)
    Example:
    Software tool developed at DSB
open main section Environmental criteria
open main section Economic criteria
no data available Application outside railway sector (this technology is railway specific)
open main section Overall rating
References / Links:
Attachments:
Related projects:  Software to reduce energy consumption of parked trains
Contact persons:
 date created: 2002-10-09
 
 
© UIC - International Union of Railways 2003
 
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