Skeleton Technologies and Wrights Group Ltd sign high-volume, multi-million euro contract; ultracaps for hybrid buses
Wrights Group Ltd and Skeleton Technologies have a high-volume, multi-million-euro contract spanning the next 5 years. Skeleton supplies graphene-based ultracapacitors to the latest KERS enabled hybrid-electric double and single deck buses produced by the Wrights Group.
The integration of graphene-based ultracapacitors into test WrightBus double deck buses enables a 36% fuel saving compared to a UK based EuroVI diesel bus baseline. It also adds at least another 3 passengers to the capacity of these buses compared to a lithium battery-based hybrid equivalent.
Graphene as part of the ultracapacitor technology significantly increases power and energy density extractable from ultracapacitors while keeping their internal resistance low and prolonging their lifetime.
With Skeleton Technologies’ cells, Wrightbus operators are also cutting down on maintenance costs. While the lithium battery may last around 4 to 5 years, during their 1 million cycles, the ultracapacitors will quietly sit undisturbed for at least 7.5 years, with an estimated life of 12 to 15 years.
Skeleton Technologies’ ultracapacitors provide a major fuel saving and will reduce maintenance with a long lifetime. It is also a “Plug & Play” solution adding safety and reliability to the vehicles.—Mark Nodder, Chairman and CEO of the Wrights Group