e mobility and charging infrastructure newsletter fuel without ownership - COE Chakra

Fuel Without Ownership

How Battery Economics is Rewriting Indian Mobility

 India crossed 2.3 million EV sales in calendar 2025 - 8% of all new vehicle registrations. The hardware debate is effectively over. What remains unsettled is the battery: how it is taxed, replenished, valued and financed. That is now an economics question, and increasingly, a common concern for sustained EV adoption.

1. From Range Anxiety to Time Anxiety

For a decade, India’s EV policy focused strictly on range anxiety – the fear of running out of charge. While that constraint has not been entirely addressed, commercial operators like delivery riders and fleet owners now face a more expensive bottleneck of time anxiety. As a parked vehicle earns zero revenue, the primary concern is no longer how far a vehicle can go, but how long it sits idle while refuelling.

What is being redefined here is not the vehicle but the fuel. Transport is shifting from a product purchase to an energy service - and at scale, the industry is moving past the three-pin plug toward a model where energy is swapped rather than merely stored.

2. The Tax Paradox: When the Fuel Costs More Than the Machine

The principal structural obstacle to Battery-as-a-Service remains an inverted GST position. An electric vehicle attracts 5% GST. A standalone battery attracts 18%. A battery-swapping service, classified as a service, also attracts 18%.

Critically, the GST 2.0 rationalisation effective 22 September 2025 did not close this gap. The 56th GST Council reaffirmed the 5% concessional rate on EVs while consolidating batteries into a single 18% slab - removing the earlier 28% lead-acid rate, but also folding in any concessional treatment standalone EV batteries had previously received. As of the latest available position, the 13-point differential stands.

The consequence is not merely a higher tariff for the rider. Given that the battery represents roughly 40–50% of an EV's cost, the differential locks up working capital across the swapping value chain - precisely when operators need it most for network expansion. For a gig worker spending ₹2,000–3,000 a month on swapping, the tax component alone is ₹360–540, against an average monthly income of ₹18,000–20,000.

Batteries are not optional accessories. They are the fuel of electric mobility.

3. The Arithmetic of the Swap

ICCT's (International Council on Clean Transportation) five-year total-cost-of-ownership analysis of electric two-wheelers, modelled across daily utilisation of 10–160 km, identifies a clean inflection point. For low-intensity users, home charging is cheapest by a comfortable margin.

Total cost of ownership (₹ per km) - ride-hailing use case

Source: ICCT working paper, "Cost comparison of battery swapping, point charging, and ICE two-wheelers in India." Battery-swapping base case at ₹34/kWh; petrol at ₹90/litre.

Two observations follow. First, ICE vehicles never win at any utilisation level - the competition is now internal to electrification. Second, the threshold itself is mobile: ICCT finds that if the all-in swapping cost falls from ₹34/kWh to ₹20/kWh, the crossover drops to roughly 120 km a day, pulling a materially larger share of India's commercial fleet into swapping economics.

The market has already voted. Battery Smart, India's largest swap network, completed its 100 million battery swap in December 2025 - built almost entirely on delivery riders and e-rickshaw drivers for whom the arithmetic is settled.

4. The Retrofitting Opportunity: A Legacy Fleet

India's legacy fleet of roughly 400 million ICE vehicles is usually discussed as an environmental liability. It is equally an addressable market. Older vehicles emit two to three times more pollutants and consume materially more fuel - and every one of them is a potential retrofit candidate.

Converting just 1% of that fleet annually would generate demand for 4 million retrofits - close to double the 2.3 million new EVs sold in 2025.

Policy is beginning to catch up. Delhi's revised EV framework, backed by the 2026 budget, has shifted from direct purchase incentives to a scrappage-linked model, with scrappage support capped at around ₹30,000 per vehicle, alongside a mandate for every dealership to install at least one public charging point.

5. Time as Currency: The Time-Value-of-Money Gap

For a ride-hailing driver, a three-to-four-hour charging cycle is not free - it is simply unbilled. At an earning potential of ₹120 an hour, a "free" home charge can cost ₹400 or more in foregone income. ICCT's (International Council on Clean Transportation) own modelling isolates this as opportunity cost, and finds it can run to ₹1.50-₹1.80 lakh over a five-year ownership period for slower-charging models.

Swapping compresses replenishment from hours to under five minutes. For high-utilisation fleets, keeping the asset in revenue mode outweighs a higher per-kWh tariff.

This is the single most underappreciated variable in the comparison: energy cost appears on an invoice; downtime cost does not.

6. Durability and the Scrappage Calendar

India's National Vehicle Scrappage Policy, now progressively live, sets 20 years as the mandatory fitness trigger for private vehicles and 15 years for commercial vehicles. Electric drivetrains, with far fewer moving parts, carry a technical life that sits comfortably at the upper end of that band - and arguably beyond it.

The gap between an EV's technical life and the regulatory life assumed for commercial assets is where the retrofit payback arithmetic is won or lost for small fleet operators. Any extension of permissible life for electric commercial vehicles would materially improve those economics - and, by extension, the tenor a lender can responsibly contemplate.

7. UIN – Battery Passport Initiative

NITI Aayog's proposal for Unique Identification Numbers (UIN) on batteries is, in substance, a financing reform presented as a compliance measure. Centralised monitoring of usage and performance history converts a hard-to-value, easily-displaced asset into one that can be tracked, assessed and, ultimately, financed on its own terms.

This is the pivot the ecosystem has been waiting for. Verified battery-health data allows the battery to be valued independently of the vehicle, supports a credible second-life market, and gives residual-value assumptions something firmer to rest on than manufacturer assurance alone. The 2026 policy calendar already contemplates a battery-passport pilot building toward exactly this outcome.

The capital, notably, is not the constraint. India's EV ecosystem raised over $1.4 billion in 2025, 27% higher than 2024, with roughly $1.2 billion directed to manufacturers, while battery demand rose to around 19 GWh, up from 13 GWh in 2024. What the ecosystem lacks is not appetite but asset legibility - and traceability infrastructure is precisely what closes that gap.

The battery swapping model would serve to allay concerns related to range anxiety and reduce the upfront cost of EVs in the country.

- Amitabh Kant, NITI Aayog

8. Beyond the Tailpipe

India has crossed from intent to scale. What is emerging alongside the vehicles is energy as a utility - the vehicle reduced to little more than the hardware attached to an energy subscription.

As transport becomes an integrated energy service, ownership itself begins to loosen. Which leaves a question worth carrying into the next fortnight:

“As batteries move from being parts to being services - are we ready for a world in which we never own the fuel that moves us?”

Authored by
Siddhesh Naik
Manager
SBI CHAKRA Centre of Excellence

Source: Secondary Research