The vehicles have bodywork by Alexander Dennis, seat up to 87 passengers and, thanks to the hybrid driveline, can deliver fuel and CO2 reductions of 39% compared to a conventional diesel bus.
Go-Ahead Group is one of the largest operators of Volvo buses in the UK and Ireland, and the order was placed following good performance and reliability from the Euro 5 hybrid model, according to engineering director Richard Harrington.
He adds: "Operating a busy cross-city route is challenging on many levels, not least in terms of fuel economy, vehicle availability, passenger capacity and environmental performance.
"The new Euro 6 Volvo hybrid double decks covers all the bases, with the back-up and support we receive from Volvo Truck and Bus Centres in Croydon and Enfield also an important part of the equation."
