Alexander Dennis, a subsidiary of NFI Group Inc., will offer electric repowering solutions for its diesel buses in partnership with specialist engineering firm KleanDrive. The AD Repower solution will reduce tailpipe emissions and extend the operating life of existing fleets, complementing the manufacturer’s newly-built next-generation electric buses.
AD Repower will initially be available in the UK on the popular MMC-generation Alexander Dennis Enviro400 double decker, with a first pilot bus scheduled to be on the road in the first half of 2026. With sufficient demand, other models and other markets could follow.
Under the partnership, KleanDrive replaces the buses’ existing diesel engine and transmission with its plug and play electric drivetrain system and control software. A unique skid system houses a Voith Electrical Drive System (VEDS) motor and all power electronics, allowing for easy installation. VEDS is also used in Alexander Dennis’s next-generation electric buses, allowing operators to benefit from familiar and proven technology.
Energy is stored in 352kWh CATL lithium-iron-phosphate batteries, for which KleanDrive expects a driving range on a single charge of 195 miles at 50% passenger occupancy.
The AD Repower conversion maintains the Enviro400’s interior layout, allowing existing buses’ full seating capacity to be retained.
Alexander Dennis highlights that the diesel-powered Enviro400 has for many years been Britain’s most popular double deck bus, and that the useful operational lif of these vehicle can be extended by offering the repowering option. AD Repower in partnership with KleanDrive is fully backed by Alexander Dennis and supported through the established ‘AD24 service’.
(Info: Alexander Dennis)
12.08.2025
