Once you get away from the coasts here, there is just massive swaths of nothingness. It’s very easy to drive 11+hrs here and not come across a town bigger than 4k. Sure, along the coasts it is possible to do electric stuff, but when shipping freight, that is usually from coast to coast and you have to pass through the big emptiness of the desert.
Older diesel are still cleaner than the (better) coal burning locomotives that we used to have everywhere.
Though water steam engines are the cleanest obviously (the current state of society wants faster and more powerful trains, like planes, so we don’t use them anymore)
Look regardless of the opinions of people on what is better for the environment: electric trains, planes, trucks, cars, etc, just aren’t there.
They are not reliable, not efficient, and not powerful enough at this day and age and state of development.
None of the “green” energy is there yet. It’s too expensive and doesn’t last long enough to payoff in the long run.
Now nuclear energy is clean, cheap, and reliable. But that doesn’t work or matter with trains.
"To date, the focus on electrification in the UK has been on marginally quicker journeys, but electric trains are also more reliable, quieter and cleaner. "
that never happened
According to google, the most powerful diesel locomotive puts out 6600hp
And the current most powerful locomotive in India is the Alstom Prima WAG-12, which puts out 12,000hp, and in the world, it is the Novocherkassk 4E5K which puts out around 18,000hp and both are electric.
Another point
Why do many rail operators trust electric traction with respect to high speed rail, commuter rail and metro rail?
And according to this statement, Mumbai should phase out their EMU’s and MEMU’s in favour of DMU’s.