Delhi Metro becomes first rail network to get UN certificate for preventing carbon emissions
New Delhi, Feb 22: Adding yet another feather to its cap, Delhi Metro has become the first rail network in the world to get a UN certificate for preventing over 90,000 tonnes of carbon dioxide from being released into the atmosphere, doing its bit to fight against global warming.
The certification report, given by Germany-based validation organisation TUV NORD which conducted an audit on behalf of the UN Framework Convention on Climate Change (UNFCCC), found that the DMRC stopped the emission of 90,004 tonnes of carbon dioxide from 2004 to 2007 by adopting regenerative braking systems in the metro trains.
"The UN certificate was given to the DMRC for preventing over 90,000 tonnes of carbon dioxide from being released into the atmosphere by reducing its power requirement, thus contributing to the fight against global warming," Delhi Metro spokesperson Anuj Dayal said on Sunday.
Under regenerative braking process for which DMRC earned carbon credits, whenever trains on the Metro network apply brakes, three phase-traction motors installed on them act as generators to produce electrical energy which goes back into the Over head Electricity (OHE) lines.
The regenerated energy that is supplied back to the OHE is used by other accelerating trains in the same service line, thus saving overall energy in the system as about 30 percent of electricity requirement is reduced.
New Delhi, Feb 22: Adding yet another feather to its cap, Delhi Metro has become the first rail network in the world to get a UN certificate for preventing over 90,000 tonnes of carbon dioxide from being released into the atmosphere, doing its bit to fight against global warming.
The certification report, given by Germany-based validation organisation TUV NORD which conducted an audit on behalf of the UN Framework Convention on Climate Change (UNFCCC), found that the DMRC stopped the emission of 90,004 tonnes of carbon dioxide from 2004 to 2007 by adopting regenerative braking systems in the metro trains.
"The UN certificate was given to the DMRC for preventing over 90,000 tonnes of carbon dioxide from being released into the atmosphere by reducing its power requirement, thus contributing to the fight against global warming," Delhi Metro spokesperson Anuj Dayal said on Sunday.
Under regenerative braking process for which DMRC earned carbon credits, whenever trains on the Metro network apply brakes, three phase-traction motors installed on them act as generators to produce electrical energy which goes back into the Over head Electricity (OHE) lines.
The regenerated energy that is supplied back to the OHE is used by other accelerating trains in the same service line, thus saving overall energy in the system as about 30 percent of electricity requirement is reduced.
