Transport for LondonHybrid buses
A diesel-electric hybrid bus
Our aim is that all new buses entering service after 2012 will be hybrid powered.
Hybrid buses reduce emissions of local pollutants and carbon dioxide by at least 30 per cent compared to conventional diesel buses.
Hybrid buses in use
There are currently 56 diesel-electric hybrid buses in London, running on routes 16, 24, 129, 141, 276, 328, 360, 371, 482 and E8.
How they work
Hybrid buses are powered by a mix of an ordinary diesel engine and an electric motor.
The hybrid buses we use also have regenerative braking, which means they generate electrical energy when the brakes are pressed.
This electrical energy is stored in a battery pack and used to drive the electric motor.
Download our factsheet on hybrid technology (PDF 40KB)
The hybrid programme
The current programme, subject to the performance of trial buses, is to introduce 300 hybrid buses by 2011. All new buses entering the fleet after 2012 will use hybrid technology.Environmental benefits
We test hybrid buses to make sure they produce fewer greenhouse gas emissions, harmful pollutants and lower noise levels.
Compared with diesel buses, hybrid buses deliver environmental benefits, including:
- Minimum 30 per cent reduction in fuel use
- Minimum 30 per cent reduction in carbon dioxide
- 3 decibel [dB(A)] reduction in perceived sound levels
- Reduced oxides of nitrogen and carbon monoxide
What do you think?
If you have travelled on a hybrid bus we'd like to hear about your experience.
Was it quieter? Did it feel different to a conventional diesel bus? Email your comments and feedback to customerservices@tfl-buses.co.uk.
