246 51.4 kWh per km compared to diesel powered haulage the energy efficiency improvement results in a factor of 2.5. In 2025 mining of ore and waste rock summed up to a total transported mass of 14.8 million tons. The seven diesel-electric Liebherr T236 trucks equipped with current collectors consumed 7 GWh electrical energy on trolley assisted haulage. This contributed to savings of around 1.6-million-liter diesel. The remaining 3.09-million-liter diesel for truck haulage off the trolley installations show a reasonable potential for battery equipped trolley trucks (see Figure 7). Figure 7 - Diesel consumption (in 1000 liter) at the Erzberg Mine in 2025 Because of the energy efficiency of electric powertrain compared to diesel powertrains only about one third of the 3.09-million-liter diesels’ energy content would be the equivalent electrical energy needed for truck haulage. This results in a total of 10.1 GWh of electrical
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