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Our Trains Network

SMRT Trains is committed to conducting our business in an environmentally responsible way, balancing the interests of our stakeholders, from commuters to employees to business partners.


Energy Conservation in SMRT  ENERGY CONSERVATION through installation of LED LIGHTING and DISTRICT COOLING


Water conservation in SMRT  Dual cycle recycling systems at train wash plants saves APPROXIMATELY 670,000 LITRES OF FRESH WATER EACH MONTH


Waste Reduction in SMRTEliminate, reuse and recycle waste. CLOSE TO 1,600 TONNES of scrap metal sent for recycling





The Bishan, Tuas and Mandai depots are powered partially by solar energy. Our aim is for the total solar energy harnessed at all SMRT train depots to supplement the energy used for purposes other than trains operation. In January 2022, we commissioned additional solar panels at Tuas West Depot. By FY2023, our target is to increase the solar energy output in Bishan Depot by 150%, while reducing carbon footprints by 2,800 tonnes (equivalent to approx. 1.4 million fire extinguishers). We will continue to explore opportunities to expand the solar PV system. 


Thomson-East Coast Line (TEL) stations, trains, Operations Control Centre (OCC), as well as Mandai Depot (MDD) were built by the Land Transport Authority (LTA). Unlike the other depots where energy-saving structures were built-in after, MDD was built as a green depot with sustainability in mind.  

  • A solar photovoltaic (PV) system with total capacity of 1,620kWp was installed and commissioned above the roofs of the depot. Energy production from the solar PV system is expected to surpass 2,000mWh annually. An additional system, which has a capacity of 150kWp, will be installed along the linkway corridor. There are also plans to install the solar PV system at the entrance roofs of TEL MRT stations. 

solar PV MDD 

Solar photovoltaic PV panel for production of electricity

  • A solar absorption chiller of 850kW or 241.7RT has been installed and commissioned in MDD to provide additional cooling capacity to the depot.

Solar adsorption chiller in SMRT   
Solar absorption chiller that provides additional cooling capacity 

  • All escalators in TEL MRT stations are installed with variable speed control. During off-peak hours, the speed of escalators is set to a lower speed of 0.50m/s, and during the peak hours, the speed is adjusted to 0.75m/s. When the escalator is idle, the speed is further reduced to 0.2m/s
  • All these features contribute towards energy savings at the stations TEL and depot premises, including trains, open track areas, workshops, service roads and tunnels, have been installed with energy-saving LED lighting
  • Water recycling features have also been incorporated at the train wash plant in MDD

Train wash plant at MDD