Excavators are the powerful workhorses of our modern building and construction industry. A construction site without these machines is unthinkable. But they pose a serious threat to our ecosystem and our health. The 16 ton machine we use as a basis for development uses up to 120 liters of diesel per day. During its whole lifecycle that adds up to over 120’000 liters. In addition to the exhaust fumes, noise emissions put am extra burden on the environment.
The electric motor on a SUNCAR excavator is only in operation when the driver is really working. Otherwise the motor stands still and does not waste precious energy.
A diesel excavator uses a lot of fuel just warming up in the morning and during standby times. The results of a feasibility study that has been conducted during the last two years we have been able to confirm an improvement of the overall efficiency by a factor of 3. The results have also verified by a proof of concept build, which has been in service for over a year.
Service Costs for the electric power train are much smaller compared to the diesel equivalent. * Assumption: 1.60 CHF/l and 0.20 CHF/kWh over the next 10 years.