According to DB AG, typical payback times of re-engining measures are 5 - 6 years. The measure is therefore profitable even for old locomotives with residual lifes of 10 years. In general, dependence of profitability on locomotive age is a complex one: - The older the locomotive, the more potential there is for efficiency improvement and reduction of running costs.
- On the other hand, the older the locomotive, the less residual life is left for payback of re-engining costs.
Whereas in most retrofit measures profitability is mainly determined by residual life, in the case of re-engining a trade-off has to be found between long residual life on the one hand and age of stock and corresponding improvement potential on the other hand. |