Electrifcation around London why not Marylebone?

superkev said:

In these difficult times I thought I'd start a thread to discuss Electrification around london. Would it be true to say the only non electrified part apart from sidings and small connections is Marylebone and the Chiltern lines.
In the age of minimising pollution seem a bit strange for just one station to be still all diesel.
May start som discussion.
Kev

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