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Home News Power Sector News Delhi Metro continues green initiatives with solar generation

Delhi Metro continues green initiatives with solar generation

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Delhi MetroNew Delhi has the first railway system in the world to qualify for UN carbon credits thanks to its regenerative braking system. The Delhi Metro Rail has installed a 64-panel, 5 kilowatt solar power system at its offices in its ongoing push to green operations. New Delhi's metro railway expects the PV system at the Metro Headquarters in Connaught Place to generate 15 kilowatt-hours of electricity per day and prevent 2.35 metric tons of greenhouse gas emissions per year.

Delhi Metro Rail became the first railway project to be registered for carbon credits by the United Nations in 2007. Last month, the transit authority received confirmation from German carbon credit validation firm TUVNORD that it prevented 90,000 metric tons of carbon dioxide from being emitted through its regenerative braking system from 2004 to 2007.

The railway's system cuts back on energy use by about 30 percent by powering trains with energy harnessed while braking. As trains' brakes are applied, the force drives three traction-phased motors to produce electricity, which is then sent to the electricity lines to reduce the overall energy requirement.

The solar system was installed for Rs 20 lakh ($40,000), incorporating crystalline silicon solar PV modules and a battery pack with 1,000 amp-hours of capacity.

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