The Dubai Metro project has cut energy consumption on the network by 25 percent.
According to the authority, power has been saved through the architectural design of metro stations, allowing more natural light into the stations.
The provision of air-conditioning at the stations using district cooling technology has been another saving.
Regenerative power, in which power is generated and fed back through an electronic inverter every time a train brakes, has also led to re-use of already available energy.
Regenerative braking power can save up to 25 to 30 per cent of what the rail system would normally use.
The rail network is now using power with a higher voltage of 33 kilovolts instead of 11 kilovolts, which cuts power losses during transmission through the cable by almost by 90 percent.