The Grid Paradox: Decarbonizing Electricity to Unlock EV Potential

1. Core Context and Source Material

• Primary Reference. This analysis is based on comments by Kamal Kishore Chatiwal (MD, Indraprastha Gas Ltd) at the launch of the study “Comparative Assessment of Vehicular Fuels in India’s Green Energy Transition” (January 2025/2026), hosted by PNGRB. The full report context can be found here: Source
• The Decisive Factor. While Electric Vehicles (EVs) are marketed as “zero-emission” at the tailpipe, their actual environmental footprint is dictated by the carbon intensity of the electricity grid used for charging.
• Collaborative Research. The study involved major stakeholders including the Petroleum and Natural Gas Regulatory Board (PNGRB), IGL, GAIL Gas, and Mahanagar Gas Ltd to assess fuels across technical, economic, and environmental indicators.

2. The Role of Grid Carbon Intensity

• Indirect Emissions. EVs act as “emission shifters” rather than “emission eliminators” if the power grid relies heavily on fossil fuels like coal, which currently accounts for over 70% of India’s electricity.
• Determining Benefit. The overall environmental gain of switching to electric depends on whether the carbon emitted at the power plant is significantly lower than the emissions from a traditional internal combustion engine (ICE).
• The “Green” Prerequisite. Experts emphasize that unless the electricity generation process is “greened” through renewables, the net climate benefit of mass EV adoption may not fully accrue.

3. Complexity of Heavy-Duty Electrification

• Capacity Challenges. Electrifying smaller vehicles like two-wheelers and three-wheelers is technically straightforward and currently offers the best “carbon reduction per rupee” of subsidy.
• Scaling Difficulties. As vehicle capacity and weight increase (e.g., heavy trucks and buses), electrification becomes more complex due to battery weight, charging time, and energy density requirements.
• Alternative Fuel Rivalry. For high-capacity transport, alternative fuels like LNG, CNG, and Hydrogen are often more economically and technically viable compared to current battery-electric technology.

4. The “Economic Angle” in India

• Price Sensitivity. In the Indian market, the “economic angle” is paramount; consumers and fleet operators prioritize total cost of ownership (TCO) over environmental metrics alone.
• Infrastructure Costs. EVs require entirely new charging ecosystems, whereas gas-based vehicles can leverage existing or more easily adaptable fuel delivery infrastructure.
• Subsidy Dependency. Much of the current EV growth is driven by government incentives (like the FAME scheme); the study questions how these technologies will compete once subsidies are phased out.

5. Tax Parity and the Level Playing Field

• Incentive Imbalance. There is a notable gap in taxation, with GST on EVs at 5% while CNG vehicles face 18%, leading industry leaders to call for an “equilibrium level-playing field.”
• Fairness in Policy. Industry stakeholders argue that tax allocation should be based on actual pollution percentages (tailpipe + grid) rather than favoring one technology over another.
• Universal Policy. Experts suggest moving from “transactional” policies that favor specific fuels to a “universal” policy that rewards any technology achieving a specific emission reduction target.

6. Life Cycle Assessment (LCA) Realities

• Manufacturing Debt. EVs start their life with a “carbon debt” due to the energy-intensive process of battery manufacturing, which often happens in countries with high-carbon grids.
• Emission Reversals. In extremely coal-dependent regions, high-energy-consuming EVs can actually experience “emission reversals,” where their total lifecycle footprint exceeds that of an efficient petrol or hybrid car.
• The 38% Benchmark. Recent studies from IIT Roorkee suggest that on average, Indian BEVs emit about 38% less than petrol cars, but this varies wildly based on charging habits and regional grid mixes.

7. Coexistence vs. Substitution

• Multi-Fuel Strategy. India’s transition is likely to be characterized by the “coexistence” of various fuels—CNG, CBG, Electric, and Hydrogen—rather than one single technology replacing all others.
• Energy Security. Maintaining a diverse fuel mix (including natural gas) is seen as essential for national energy security and for managing the massive growth in energy demand.
• Transition Pathways. Different vehicle segments require different pathways; for example, city buses may thrive on electric, while long-haul trucking might rely on LNG or Hydrogen.

8. The Rise of Compressed Biogas (CBG)

• Waste-to-Energy. CBG is emerging as a critical bridge fuel, utilizing municipal and agricultural waste to create a carbon-neutral fuel source that can use existing CNG kits.
• Decentralized Production. IGL and other partners are scaling pan-India CBG projects, targeting hundreds of tonnes of production per day to reduce import dependence.
• Rural Livelihoods. Unlike electricity which is centralized, CBG production creates decentralized jobs in rural and semi-urban areas by sourcing organic feedstock.

9. Urban Air Pollution Priorities

• Particulate Matter (PM). Transport contributes up to 49% of particulate pollution in Indian cities; immediate shifts to CNG/Electric in public transport can reduce these levels by over 10 times.
• Health Costs. Ambient air pollution is linked to over 1.6 million premature deaths in India annually; the study stresses that “speed of adoption” is as important as the “cleanliness” of the fuel.
• BS-VI Standard. Modern BS-VI diesel/petrol vehicles are significantly cleaner than older models, meaning the “benefit gap” between new ICE vehicles and EVs is narrowing.

10. Strategic Recommendations for Policy

• Holistic Assessment. Policymakers are urged to use “multi-criteria decision analysis” that integrates social, geopolitical, and economic factors alongside carbon emissions.
• Grid Decarbonization Focus. To maximize EV benefits, the government must accelerate the retirement of old coal plants and increase the share of “round-the-clock” (RTC) renewable energy.
• Consumer Choice. The ultimate goal is to provide evidence-based guidance so consumers can choose the most efficient fuel for their specific needs (e.g., short-range city commuting vs. long-range commercial hauling).