NO2 emissions of Euro VI double decker hybrid bus fleet

Meeting: 
MQT on 2014-11-19
Session date: 
November 19, 2014
Reference: 
2014/4283
Question By: 
Stephen Knight
Organisation: 
Liberal Democrats
Asked Of: 
The Mayor
Category: 

Question

What are the measured exhaust emissions of NO2 of the following Euro VI hybrid diesel-electric double-deck buses that have or are due to enter service with TfL this year: (a) Alexander Dennis E400H, (b) Wrights / Volvo Gemini 3, and (c) New Routemasters?

Answer

Answer for NO2 emissions of Euro VI double decker hybrid bus fleet

Answer for NO2 emissions of Euro VI double decker hybrid bus fleet

Answered By: 
The Mayor

The New Routemaster is by far the cleanest hybrid Euro V bus of its generation, compared to other Euro V hybrids in the fleet tested on the independent London Buses route cycle, and is almost as clean as a new standard Euro VI hybrid. The first table provides the comparisons.

Euro VI vehicles are showing better NO2 performance than their Euro V counterparts because they are all fitted with a much more sophisticated exhaust after-treatment system. This will also become a standard feature on NRMs with Euro VI engines.

There are currently no test emissions figures available for New Routemasters with the Euro VI engine, so no comparisons can be drawn between the NRM and the Euro VI hybrids listed at this time.

Bus Type

NO2 (g/km)

New Routemasters (Euro V)

 0.53

Alexander Dennis E400H (Euro V)

1.6

Volvo B5H (Euro V)

1.1

Hybrid Bus Type

NO2 (g/km)

Alexander Dennis E400H (Euro VI)

0.11

Volvo B5H (Euro VI)

 0.07

New Routemasters (Euro V1)

 N/A