Weight reduction of vehicles is a relatively simple approach to realising energy efficiencies for the transport, mining, construction and services sectors. Weight can be reduced through the use of new designs for mobile equipment and lightweight materials.
Efficiencies are achieved as the payload can be increased, and moved in less time with less fuel. Savings can also be achieved by minimising the transport of unneeded or excess materials, such as waste product stuck to the tray of a dump truck.
Sectors and common applications
- Mining vehicles − haul trucks, track and wheel loaders, graders, articulated dump trucks, centre dump haul units
- Construction – earth moving equipment
- Transport and services – freight vehicles
- Estimated energy savings in 2014 across sectors was 27 PJ/pa.
|1. Energy saving potential|
|1.1 Level of energy efficiency||12/15|
|1.2 Market prospect||2/10|
|1.3 Energy saving potential||8/10|
|2. Technical practicality|
|2.1 Innovative or advanced nature||15/25|
|3. Economic characteristics|
|3.1 Investment per unit energy||10/10|
|3.2 Payback period||2/10|
|3.3 % of Industry $ gross added value||5/5|
|4. Social characteristics||3/5|
Newmont Australia Pty Ltd identified an opportunity to fit lighter truck bodies to its haul truck fleet. This would reduce the weight of the vehicle, allowing it to carry more ore/waste for the same (or less) fuel use. The project would require a large capital investment in the truck fleet with a payback period greater than four years.
A project for vehicle weight reduction for increased payload was undertaken by Barrick (Australia Pacific Holdings) Pty Ltd. This was accomplished with lighter truck trays to enable more material to be hauled for the same fuel consumption.
Other companies that have identified vehicle weight reduction as a source of energy savings include:
For more information, see: