The Peel Godred Branch Line is ran using electric locomotives to deal with the heavy aluminium traffic on that line.
No details are given as to the locomotives that first worked the line, but Sodor: Reading Between the Lines states that goods traffic is currently handled by engines similar to the BR Class 86 and 87 and the passenger services are run by electric multiple units.
The liveries of these locomotives are unknown, as they have not been seen in any illustrations. It is assumed that the electric multiple units and goods engines are painted B.R. blue with yellow warning panels.
E1, E2, E3 and E4 are based on Edwardian-styled Bo-Bo locomotives, and the goods engines are said to be similar to the British Rail Class 87. It is unclear if the class 87 style engines replaced or supplemented the earlier ones. There are also some multiple units which work passenger services, although the class is not specified.
The electric engines are mentioned in the annual stories, Thomas and the Sunday School Outing and The Hut that Walked by Itself. One of these locomotives appeared in the railway safety book More Bad Days for Thomas and his Friends written by Christopher Awdry. He was described as being very new to the railway and as a result had not been named. Another engine was mentioned in the final Railway Series book, Thomas and his Friends.