The technology, however, comes with significantly higher infrastructure costs. Conventional public fast chargers typically cost about ₹7-12 lakh, depending on capacity and configuration. By comparison, heavy-duty 400-600 kW pantograph charging systems can cost ₹25-50 lakh or more per charging point, excluding any major grid upgrades required to support them.
The Centre on Monday reviewed a pantograph-based flash-charging system for high-capacity electric buses that could reduce charging downtime from hours to minutes, enabling 18-metre articulated buses carrying around 130 passengers to recharge during brief stops and remain in near-continuous operation.Heavy Industries Minister HD Kumaraswamy chaired the inter-ministerial meeting, which was attended by representatives from the Ministries of Finance, Power, Road Transport and Highways, Housing and Urban Affairs, as well as NITI Aayog.The proposed system relies on rapid “opportunity charging” through overhead pantograph equipment installed at designated locations along a route. Instead of relying solely on lengthy depot charging cycles, buses would receive short, high-power top-ups during operations.“The proposed system features 18-metre bi-articulated electric buses with a capacity of around 130 passengers, supported by rapid flash/opportunity charging during short stops,” Kumaraswamy said after the meeting. “This can enable continuous operations while significantly reducing charging downtime.”He said the discussions explored the potential of such solutions to strengthen clean, efficient and future-ready urban mobility in India.Higher upfront investmentHowever, the technology comes with significantly higher infrastructure costs. Conventional public fast chargers typically cost about ₹7-12 lakh, depending on capacity and configuration. By comparison, heavy-duty 400-600 kW pantograph charging systems can cost ₹25-50 lakh or more per charging point, excluding any major grid upgrades required to support them.Vehicle costs are also higher. Industry estimates place the cost of specialised 18-metre articulated electric buses at roughly ₹2-3.5 crore, compared with around ₹1.5-2.2 crore for conventional 12-metre electric buses.The higher upfront investment has made financing a key focus of discussions. The government is examining a framework that could combine targeted central support, public-private partnerships and institutional financing mechanisms to reduce risks and improve project viability.The business case hinges on a different operating model for electric buses. A conventional heavy electric bus may require two to five hours for a substantial or full depot charge, depending on battery size and charger capacity. That generally requires larger battery packs capable of powering long operating stretches between charging cycles.Pantograph-based opportunity charging distributes the energy requirement across multiple short charging sessions during the day. Operating at several hundred kilowatts, such systems can recharge buses in minutes rather than hours.This could allow operators to use smaller and lighter battery packs, reducing battery costs and vehicle weight. At the same time, shorter charging interruptions can improve fleet utilisation by keeping buses on the road for longer periods, potentially increasing revenue-generating hours.The trade-off is that a larger share of the investment shifts from the vehicle to the charging network. Pantograph chargers require automated conductive equipment, high-capacity electricity connections and, in some cases, local grid strengthening. Charging stations must also be strategically located to ensure buses can recharge without disrupting schedules.Nagpur has already emerged as an important domestic test case. The city has pursued an articulated electric bus and rapid-charging model, providing policymakers with an early opportunity to assess whether high-capacity buses and strategically placed opportunity chargers can function effectively as an integrated transport system.The Centre has not announced a final financing framework or procurement programme. However, the key policy question remains whether the higher investment in charging infrastructure can be justified through smaller batteries, reduced charging delays and higher utilisation of each bus.Published on August 11, 2026
