Despite Electrification, Railways To Retain 2,200 High HP Diesel Locos To Meet Growing Demand

With train operation returning to normalcy, the Indian Railways has decided not to replace over 2000 high horsepower (HP) diesel locomotives with electric ones to cater to the growing traffic demand.

With more than 65 per cent of total rail routes electrified, many fossil fuel-driven locomotives are being replaced with electric locos.

Currently, there are 2200 diesel locomotives with 4000 HP, 4500 HP and 6000 HP in the system which would be allowed to run the full course. The codal life of a diesel loco is about 35 years.

Though the Railways would continue with the route electrification exercise, there would be a requirement of diesel locos besides electric traction for full scale train operation. There is a requirement of more high HP locos to haul freight trains as the Railways has set the target of 5 MT loading in a day.

“We need locos for freight as well as passenger operations. The entire fleet cannot be run on electric locos at the moment because the number of such locos are not adequate,” said a senior Railway Ministry official.

There are sections within a destination which are yet to be electrified. So there is no end to end electric traction at many sections for which diesel locos are required, said the official.

It is a stated policy of the Railways to reduce dependence on fossil fuel so many steps are being undertaken to expedite electrification and phasing out diesel locos.

But at the same time we need diesel locos for emergency service so the entire diesel fleet cannot be replaced with electric ones, said the official. The loco factory at Marhaura in Bihar is producing about 100 high horsepower diesel locos in a year.

The Railways’ move might also just be a matter of convenience since American manufacturer General Electric will continue producing at least 1000 locos by 2025, with an average lifetime of 5-10 years, as per a contract signed with the Indian government back in 2015.  While the Comptroller and Auditor General of India (CAG) did express concern in 2018 that the diesel locos unit being built by GE in Bihar did not go with the Indian Railways’ vision of large-scale electrification, the government ultimately could not manage getting out of the 11-year contract. This may be one more reason why he entire diesel fleet cannot be replaced with electric ones.

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