Does a Diesel Generation plant creating electricity more efficiently by use of fossil fuels than diesels locomotives on lines?

Does a Diesel Generation plant creating electricity more efficiently by use of fossil fuels than diesels locomotives on lines? Is there a savings by running electrified rail by electricity still created by fossil fuel plants over normal diesel electric locomotives?

A:

Very little diesel is used for creating electricity. The increased efficiency would mean that the typical existing electricity supply would be more energy efficient and lower greenhouse gas emission per ton-mile than diesel powered locomotives running comparable speeds. However, we propose that the Steel Interstate Infrastructure Banks be chartered to operate with 100% sustainable, renewable energy.

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