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General information
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General criteria
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Environmental criteria
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Economic criteria
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Vehicle - fix costs: none |
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(no details available) |
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Vehicle - running costs: significant reduction |
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Since the price of regenerated energy fed back into the grid is usually lower than for the consumed energy, as much energy as possible should be used by other trains rather than fed back into the supply grid. |
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Infrastructure - fix costs: high |
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Given the high investment costs of such a system, a thorough assessment of the most profitable site for installation (cf. General criteria - Applicability for railway segments) has to be carried out. |
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Infrastructure - running costs: increased |
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Although the inverter unit increases the complexity of the substation, maintenance costs are not necessarily high. KVB Cologne have made positive experience with virtually no downtimes in three years of operation. |
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Scale effects: medium |
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In case of a more wide-spread use of inverter units for substations in mass transit systems, a certain drop in prices is to be expected. |
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Amortisation: > 5 years |
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(no details available) |
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Application outside railway sector (this technology is railway specific)
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Overall rating
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Technologies
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date created: 2002-10-09
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