EV vs petrol: the full cost over five years, not just the fuel saving
EVs save ₹1 to ₹1.5 per kilometre on fuel. But the upfront premium, battery replacement risk, insurance, and resale collapse change the five-year maths considerably.
The pitch for an electric car in India is always stated in running cost: ₹1 per kilometre versus ₹7 to ₹8 for petrol. That is an 85% saving, and it sounds transformative.
It is also incomplete. The total cost of owning a car includes the price paid, the loan interest, insurance, maintenance, battery health, depreciation, and what you get when you sell it. The running cost is one line in a ledger that has twelve.
The purchase price gap
As of 2026, the on-road price difference between comparable EV and petrol variants is still significant:
| Segment | Petrol (on-road) | EV (on-road) | Premium |
|---|---|---|---|
| Hatchback (Tiago vs Tiago EV) | ₹7.5 lakh | ₹10.5 lakh | ₹3 lakh |
| Compact SUV (Nexon vs Nexon EV) | ₹12 lakh | ₹15.5 lakh | ₹3.5 lakh |
| SUV (XUV400 vs XUV700 petrol) | ₹16.5 lakh | ₹18.5 lakh | ₹2 lakh |
State subsidies — available in some states like Maharashtra, Gujarat, and Delhi — bring the gap down by ₹1 to ₹2.5 lakh. But the base premium remains, and it must be recovered through savings elsewhere.
The running cost advantage, honestly stated
The ₹1-per-kilometre figure assumes home charging at residential electricity tariffs. In practice:
- Home charging (overnight): ₹1.0 to ₹1.5 per km
- Public fast charging: ₹3.0 to ₹5.0 per km
- Highway DC charging: ₹4.0 to ₹6.0 per km
A driver who charges exclusively at home — meaning they have dedicated parking with a charging point — achieves the advertised running cost. An apartment dweller relying on public chargers does not. The running cost for a city-plus-highway mix is closer to ₹2 to ₹3 per km, not ₹1.
Against petrol at ₹8 per km, the saving is ₹5 to ₹6 per km with home charging, or ₹3 to ₹5 with mixed charging.
At 1,000 km per month — typical urban driving — the monthly saving is:
| Charging profile | Monthly fuel saving | Annual saving |
|---|---|---|
| 100% home charging | ₹6,000–₹7,000 | ₹72,000–₹84,000 |
| 70% home, 30% public | ₹4,500–₹5,500 | ₹54,000–₹66,000 |
| 100% public charging | ₹2,000–₹4,000 | ₹24,000–₹48,000 |
A ₹3 lakh premium, at ₹6,000 a month in savings, takes roughly 4 years to recover. At ₹3,000 a month (public charging only), it takes over 8 years — longer than most people keep a car.
Insurance costs more
EV insurance premiums are 15% to 30% higher than comparable petrol cars, because:
- The insured declared value (IDV) is higher due to the higher purchase price.
- Battery-related claims are expensive.
- The repair ecosystem is still developing — fewer garages, more proprietary parts.
A Nexon EV's comprehensive insurance runs ₹25,000 to ₹35,000 a year versus ₹18,000 to ₹25,000 for the petrol version. Over five years, the cumulative difference is ₹30,000 to ₹50,000.
Maintenance is genuinely cheaper
This is the one area where EVs deliver unambiguously. No oil changes, no clutch plates, no exhaust system, fewer brake pad replacements (regenerative braking does most of the work).
Annual maintenance comparison:
| Component | Petrol (annual) | EV (annual) |
|---|---|---|
| Servicing | ₹8,000–₹12,000 | ₹3,000–₹5,000 |
| Consumables | ₹4,000–₹6,000 | ₹1,500–₹3,000 |
| Brake system | ₹2,000–₹4,000 | ₹500–₹1,500 |
Annual saving: ₹8,000 to ₹12,000. Over five years: ₹40,000 to ₹60,000. Meaningful, but not enough to close the purchase premium on its own.
The battery question
EV batteries degrade. Most manufacturers warrant 70% to 80% capacity at 8 years or 1,60,000 km. But degradation is not linear — it accelerates with fast charging, high ambient temperatures (an Indian summer is not kind to lithium-ion cells), and deep discharge cycles.
A battery replacement outside warranty costs ₹4 to ₹8 lakh depending on the car. If this happens at year 6, it wipes out every running cost saving accumulated over the ownership period.
The mitigant: buy from a manufacturer with a strong battery warranty, charge at home on slow chargers, and avoid routinely draining below 20% or charging above 80%.
Resale value — the hidden cost
This is where the five-year calculation shifts most dramatically.
Petrol cars in India depreciate roughly 15% a year. A ₹12 lakh car is worth about ₹5 to ₹6 lakh after five years.
EV resale values are still uncertain because the market is young. Early data suggests 25% to 35% annual depreciation for EVs — driven by rapid technology improvement (a 2026 battery is much better than a 2024 one), range anxiety in the used market, and uncertainty about battery health.
A ₹15.5 lakh EV may be worth ₹4 to ₹5.5 lakh after five years, versus ₹5 to ₹6 lakh for the ₹12 lakh petrol version. The EV owner paid more upfront and gets back less.
The five-year total
For a compact SUV driven 12,000 km/year, with home charging:
| Cost component | Petrol | EV |
|---|---|---|
| Purchase (on-road) | ₹12,00,000 | ₹15,50,000 |
| Fuel / charging (5 years) | ₹4,80,000 | ₹90,000 |
| Insurance (5 years) | ₹1,10,000 | ₹1,50,000 |
| Maintenance (5 years) | ₹50,000 | ₹20,000 |
| Resale value | −₹5,50,000 | −₹4,50,000 |
| Total cost of ownership | ₹12,90,000 | ₹13,60,000 |
The EV is ₹70,000 more expensive over five years, despite saving ₹3.9 lakh on fuel. The higher purchase price and lower resale absorb the saving.
At 20,000 km per year — typical for someone with a longer commute — the fuel saving doubles to ₹6.5 lakh, and the EV wins by about ₹1.2 lakh.
The breakeven is roughly 15,000 km per year with home charging. Below that, petrol is cheaper. Above that, EV pulls ahead — and the margin widens with every additional kilometre.
Who should buy an EV today
An EV makes financial sense if all three are true:
- You drive more than 15,000 km a year.
- You have access to home or workplace charging.
- You plan to keep the car for at least 5 years.
If any one of these is false, the petrol version is likely cheaper on a total-cost basis in 2026. That will change as battery costs fall and the charging network densifies — but the decision today should be made on today's numbers, not next year's promises.
Published by FinClamp. This guide is information, not financial advice — see the disclaimer.