LED lighting for RATP metro and RER stations
In June 2012, RATP launched a European bid to tender to install LEDs, to replace all the lights in the metro and RER stations. The changeover to the new lighting system will take four years, starting in April 2013. RATP will be the first underground public transport network of its size to be entirely equipped with LED technology.
RATP will begin replacing its traditional lighting with LEDs, or light-emitting diodes, for a total of 250,000 lights in 301 metro stations and 66 RER stations. This decision is part of the Group’s energy and climate change policy, which aims to achieve a 15% reduction in energy consumption and greenhouse gas emissions by 2020 (at constant scope, compared to the 2004 level).
* Energy-efficient LED lighting is 3 times less expensive, overall
Energy-efficient LED lighting lasts 6 times longer
Energy-efficient LED lighting consumes half as much energy, while giving just as much light
Pioneering spirit confirmed
After experimenting with LED lighting in the Censier-Daubenton metro station (Line 7) and at the RATP Group’s head office in 2010, the company tested this new technology in several other metro and RER stations, and in certain technical facilities.
So far, the feedback has been very positive. The results measured at the Censier-Daubenton station showed energy savings of 65% on lighting — which adds up to saving 15 tonnes of CO2 emissions every year. An independent quality survey indicated that 92% of passengers did not see an impact or change in the quality of station lighting.
The advantages of an innovative technology
LED lighting offers numerous advantages, notably in terms of respecting the environment.
Today, electrical power consumption in passenger areas represents about 12% of RATP’s overall energy consumption. Replacing all traditional lighting sources with high energy efficient LEDs will reduce the energy consumption necessary for lighting the metro and RER networks by more than 50%, and will reduce the associated greenhouse gas emissions by as much.
For the metro and RER networks, the reduction in energy consumption for lighting represents more than 77 GWh, which amounts to a reduction in greenhouse gas emissions of about 6,000 tonnes of CO2 per year. For just one metro system, this is equivalent to the emissions of a car driving around the globe more than 2,100 times. Another advantage of deploying LED technology is the quality of lighting and its exceptional longevity, compared to traditional lighting systems. Its long life helps to reduce maintenance costs, secure supplies and reduce the number of product references.
One consequence of this operation will be to space out regular maintenance and replacement operations, which should result in a major reduction in waste. Whereas the replacement period for fluorescent lighting tubes is two years, for LEDs it will be 5 to 15 years. Thus, following the initial installation, the first replacement of LEDs is not expected before 2018.
* Light up the present without darkening the future