Electric tractor units are a relatively straightforward replacement for diesel trucks if the distances involved are no more than ten miles per journey. With payloads close to matching a 44 tonne 6×2 diesel, Knowles Logistics three new Volvo FM Electric 42 tonne 4×2 tractor units fit the bill perfectly. They will operate with tri-axle curtainside trailers on a short-shunt operation for longstanding customer and international food and drink group Princes Limited.

Solar Power

Serving as direct replacements for diesel vehicles, the FM Electrics will run on 100 per cent clean energy – 15 per cent of which is generated via on-site solar panels – and will collectively save 260,000 kg of C02 per annum. They will be charged via a 150kW on-site fast charger, with top-up charges carried out during each driver’s 45-minute statutory rest break, ensuring they can be double shifted and remain in operation 24/7.

The three vehicles have been supplied by Volvo Truck and Bus Centre South & East’s Key Account Manager, Alan Didwell, in a five-battery configuration, ensuring the optimum combination of range and payload capacity for local work. They will run continuously between Princes’ manufacturing sites 10 miles away in Long Sutton, and two miles away in Wisbech, directly into Knowles’ warehousing facilities – each clocking-up around 80,000km per year.

Alex Knowles, Managing Director of Knowles Logistics, says: “‘As one of the fastest growing transport providers in the country, this is a great milestone on our sustainability journey.  This latest investment in a clear demonstration of how we work with customers to reduce the carbon footprint of their logistics operations.

VOLVO Electric Knowles
The FM Electrics will run on 100 per cent clean energy – 15 per cent of which is generated via on-site solar panels – and will collectively save 260,000 kg of C02 per annum

Comparable ‘Electric’ Payload

“What we’ve been able to achieve with these FM Electrics is nothing short of impressive. They perform as direct replacements for diesel vehicles on a factory clearance application, with fast charging meaning they stop for very short periods whilst topping up. What’s more, by carefully planning our loading configuration, we can take full advantage of being able to operate at 42-tonnes on five axles. This is a weight-critical application, and we’re pretty much hitting the same payload figures as a diesel truck achieves.”

Volvo Truck and Bus Centre South & East has supported the delivery of the vehicles by providing tailored coaching for Knowles Logistics’ team of driver trainers, enabling them to roll-out specific training internally. They also benefit from Volvo Connect, which will enable the company to monitor the performance of the electric trucks and the efficiency of drivers, as well as quickly identifying areas of improvement through customised reporting – helping to boost fleet productivity and energy efficiency.

The three trucks are also backed by a four-year Volvo Gold Contract, which will see all maintenance undertaken at the local dealership in Cambridge, just 15 miles away. The Volvo Gold Contract also guarantees the performance of the traction batteries beyond the two-year warranty that comes with the truck as standard, for customer peace of mind.

Knowles Logistics first gained experience of operating electric trucks in 2023, with the delivery of a 19-tonne Volvo FE Electric rigid truck, with curtainside body and tail-lift. It used this first vehicle to establish the viability of an electric truck for real-word operation, deploying it on multi-drop pallet work locally.

Knowles adds: “Acquiring the FE Electric last year gave us immediate confidence that we could bring electric vehicles into our fleet, in the right application.”