TfL's increasing use of energy

MQT on 2009-11-18
Session date: 
November 18, 2009
Question By: 
Mike Tuffrey
Liberal Democrats
Asked Of: 
The Mayor


Why in TfL's 2009 business plan are London Underground's projections for traction energy per passenger journey increasing from 944 Wh (2009/10) to 1,002 Wh (2017/18)? How will LU cut energy use? Will you set a KPI for increasing the use of renewable energy?


Answer for TfL's increasing use of energy

Answer for TfL's increasing use of energy

Answered By: 
The Mayor

TfL officers are currently compiling this information and will shortly send a response.

Information provided on 27 November 2009:

Over the period of the Business Plan, London Underground (LU) will deliver major upgrades to eight lines and increase network capacity just over 26 per cent in order to tackle existing crowding and cater for growth.

This increase in capacity, provided by longer trains, more frequent and faster services, does result in a small increase in traction energy consumption overall. Energy efficiency measures, such as regenerative braking and new signalling are being put in place in parallel, which minimises this increase. At the same time, since passenger journeys are increasing, emissions per journey will fall. Once all the upgrades are completed the energy per passenger journey is expected to be lower than it is currently, approximately 940 Wh by 2022/23. LU is also working with train manufacturers to develop a new generation of high-capacity, energy-efficient trains for the Bakerloo line upgrade in 2020.

As well as reducing energy usage, LU has an aspiration to source 30% of its energy supply from renewables by 2025 and is working with industry and relevant London bodies to develop this proposal.