In 2011 a specialised factory train for overhead line installation was ordered – the initial use of the train was expected to be the electrification of the Great Western Main Line (c.2013). The train, named the 'High Output Plant System' train was completed by late 2013. The entire train consisted of a 500m 23 vehicles designed to be split into five separate working sections: two piling sets, one with a vibrating piler, the other with a percussion piler; a concrete mixing set; a structure erection set; and a catenary installation set.