Volvo Penta-powered Rosenbauer electrified fire engine soon will be tested in real-world operation.
The two were working on the project for quite some time, as the first concept - the Concept Fire Truck (CFT) - was revealed in early 2019.
Now, the vehicle is equipped with Volvo Penta's electric driveline, which according to the press release seems to be a plug-in hybrid with an on-board internal combustion engine range-extender (in series-hybrid configuration).
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It's equipped with two electric motors - one per axle - for all-wheel drive and with an undisclosed energy storage system, good enough "for an electricity-powered journey with ample time for operation at the rescue site". We can just assume that the battery pack size must be huge.
The diesel engine is just a backup, "in case the journey or operation takes longer than expected," which means that normally it will operate in all-electric, zero-emission mode.
As the Volvo Penta is part of the Volvo Group, it can easily use the EV tech developed by Volvo Buses and Volvo Trucks.
"By walking away from conventional commercial vehicle concepts and developing an electric solution for the truck’s driveline instead, Volvo Penta and Rosenbauer introduced a completely new vehicle architecture that looks set to revolutionize the fire service industry and bring benefits such as zero exhaust emissions and significantly reduced noise levels. With its electric driveline, the fire truck boasts excellent ergonomics, functionality, and safety, as well as high loading volumes, compact dimensions and one-of-a-kind agility."
After the "intensive testing" is completed, the new fire truck will enter real-world customer testing with fire departments in Berlin, Amsterdam and Dubai.
We can assume that an important side-feature of an electrified fire truck is the ability to offer silent power-export function to supply other equipment on site.