Technologies - Regenerative braking in freight trains

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Regenerative braking in freight trains

evaluated

Due to high average weights of freight trains and the fact that only locomotive axles are powered, high shares of braking power comes from the mechanical brakes in the freight cars, and only a small share is added by the locomotive itself. Based on conventional freight trains, there exists limited potential to raise the share of recovered braking energy.

Technology field: Regenerative braking and energy management



General information

General criteria

	Status of development: not applicable

	Time horizon for broad application: not applicable

	Expected technological development: not applicable

	Benefits (other than environmental): medium

	Barriers: high

	Applicability for railway segments: high
	Type of traction: electric - DC, electric - AC
	Type of transportation: freight

	Grade of diffusion into railway markets:
	Diffusion into relevant segment of fleet: not applicable
	Share of newly purchased stock: not applicable

	Market potential (railways): not applicable

Environmental criteria

Economic criteria

	Vehicle - fix costs: low
		(no details available)

	Vehicle - running costs: minor reduction
		(no details available)

	Infrastructure - fix costs: none
		(no details available)

	Infrastructure - running costs: unchanged
		(no details available)

	Scale effects: not applicable
		(no details available)

	Amortisation: not applicable
		(no details available)

Application outside railway sector (this technology is railway specific)

Overall rating

	Overall potential: interesting
	Time horizon: short-term
		Potential for increased use of regenerative braking in freight operation is limited. A thorough assessment of status quo is needed for each fleet to identify potential to be exploited without major technological investment. Possible measures range from a revision of regulations for longitudinal train forces to radio-controlled double-traction.