Greenhouse gas (GHG) emissions are a direct cause of human-induced climate change. India accounted for 2.9 billion tonnes of CO2 emissions in 2019. The transportation sector accounts for roughly 10% or 290 million tonnes of CO2 emissions per year. Road transport, mainly comprising heavy vehicles (buses and trucks) and to some extent personal vehicles (two wheelers [2Ws] and four wheelers [4Ws]), is the leading contributor to these emissions. Based on the latest trends, a recent study by the Center for Study of Science, Technology and Policy (CSTEP) reported that vehicle electrification is the most practical approach to curb vehicular GHG emissions, with the added benefit of significantly inhibiting sources of urban pollution including particulate matter (PM), nitrogen oxides (NOx), and black carbon (BC).

In the current study, the on-road vehicle stock in Bengaluru was obtained by accounting for all vehicles registered in the last 20 years (2001–2021) and those that were retired (due to wear and tear, accident, or total loss) during this period. Further, the vehicle population was projected into the horizon year (2030) by extending the past growth trends in each vehicle class. These projections showed that the on-road vehicle stock grows 1.5 times (from 5.7M vehicles to 8.9M vehicles), at an overall growth rate of 5%.

The number of vehicles in Bengaluru will increase by 1.5 times in 2030, but the addition of 2.3M electric vehicles will prevent approximately 3.3M tonnes of CO2 emissions.

This vast EV fleet is estimated to require more than 6 million units of electricity to recharge daily. Since majority of the electricity in Bengaluru is sourced from non-renewable sources, for a completely green transition, more than 1.3 GW of rooftop solar would be needed for sustainable EV charging.

Overall, there is significant potential for the city of Bengaluru to move towards sustainable mobility solutions.

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Bengaluru 2030: Impact of EVs on Vehicular Emissions
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Bengaluru 2030: Impact of EVs on Vehicular Emissions
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Bengaluru 2030: Impact of EVs on Vehicular Emissions
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Tailpipe emissions, Green mobility, Solar PV