The Designline electric bus already operates in New Zealand

Stagecoach is trying out a series of hybrid electric vehicles in Newcastle.

The company is hoping to encourage local authorities to consider introducing the vehicle across the UK.

The Designline-manufactured vehicles, which are already operating in New Zealand, have the advantage of being able to run emission-free in densely-populated areas.

Stagecoach North East has been selected as preferred bidder to run a new hybrid electric bus service in Newcastle.

Public transport operator Nexus and the councils in Newcastle and Gateshead plan to run a service connecting Newcastle City Centre, the Quayside and new developments on the Gateshead side of the River Tyne.

Successful technology

Eight of the �200,000 vehicles are expected to operate on the route, with the service planned to start in early 2005.

The buses have 30 seats and space for 30 standing passengers.

Current tests involve sacks of gravel "sitting in" for passengers while the vehicles are put through their paces.

Stagecoach is showcasing the vehicle to local authorities in various locations across the country, including Inverness, Oxford, Cambridge, Winchester, Manchester and the Lake District.

A spokesman for Stagecoach said: "This vehicle has real potential to improve the quality of life in our towns and cities and is further evidence of our commitment to minimising the impact of our operations on the environment.

"We have already operated this technology successfully in New Zealand and we look forward to demonstrating its benefits to local authorities around the UK."

A diesel turbine charges batteries on the vehicle, allowing it to run on battery power.

The vehicle is also fitted with a regenerative braking system.