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Delhi Metro continues green push with solar
March 23, 2009 - by Emma Ritch, Cleantech Group
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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 (see Delhi Metro earns carbon credits for regenerative braking system).
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.
Delhi Metro plans for the solar system to power nighttime lighting at Metro Bhawan, IT Park, and the Patel Chowk and Chandni Chowk metro stations.
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Comments
Scope of further Energy Efficiency at Delhi Metro
Submitted on March 27th, 2009 by Jagpreet Walia (not verified)Delhi Metro has been making commendable efforts in justifying its motive for a cleaner greener Delhi but still a huge scope lies in making the systems further more efficient. With Energy Efficiency being a prime mission as per the NAPCCC by the Indian Government, efforts can be made at a further depth by DMRC to be energy efficient. During my visits to the Metro stations, I observed that almost all the lighting arrangement at the stations use Fluorescent Tube Lights. There is a sensible potential for energy conservation by shifting to a further energy intensive illuminating source like LED Lighting or CFLs. Such a project activity if combines all stations that are already built or being built, will result in a good amount of GHG reductions and energy savings. As the substitutes to the currently used fluorescent tubes are a bit costlier, this activity might also attract CDM benefits.
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