Both locomotives feature battery storage in addition to current collection and one also includes a diesel power pack.

The MT-S-600-BE locomotive on display is the last of ten built for Vienna metro operator Wiener Linien (pictured). The 36.3 tonne, four axle (Bo-Bo) 520kW , 50km/h locomotive operates from 750V dc third rail and also incorporates battery storage.

Also on display in the outside area is a 40-tonne two-axle Modu Trac MMT-M270-BDE locomotive, one of 10 being supplied to Freeport McMoran Copper and Gold for use at a major new copper drift mine being operated on the Indonesian island of Sumatra.

The 270kW locomotives are equipped for operation from 750V DC overhead wires and on-board batteries. The 25km/h units are fitted with two traction convertors and ac traction motors.

In addition, they also have diesel power packs which are being used during the initial operating phase as the mines overhead electrification is not yet commissioned. The locomotives are designed to operate 708-tonne trains of ore formed of one locomotive and 20 bogie wagons.