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Running Costs Deterministic Model v1.2

EV Trip Cost Calculator

Estimate total energy requirements and charging expenses for road trips.

Trip Route Parameters

Compute highway energy and journey cost
km
e.g. 350 km intercity highway road trip
Highway cruising consumes ~15–20% more energy than city driving
₹ / kWh
Public DC fast chargers typically charge ₹16 to ₹22 per kWh
92%
Total Trip Energy Cost ₹1,104.49 ₹3.16 per kilometer
Battery Energy Consumed: 56.45 kWh
Grid Energy Required: 61.36 kWh
Trip Distance: 350 km
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For a 350 km trip in a petrol car (14 km/L at ₹102/L), fuel would cost ₹2,550.00 — EV saves ₹1,445.51 on this route.

Mathematical Formula & Physical Model

Divides trip distance by vehicle efficiency and factors in charging replenishment losses to determine total grid energy cost.

1 Battery Energy Required (kWh) = Trip Distance (km) / Efficiency (km/kWh)
2 Grid Energy Required (kWh) = Battery Energy / (Charging Efficiency% / 100)
3 Total Trip Cost = Grid Energy Required × Electricity Rate

Worked Example

Reference Benchmark

Intercity Highway Excursion (350 km)

Driving 350 km in an electric crossover achieving 6.2 km/kWh at a public fast charger rate of ₹18.00/kWh.

Trip Distance 350 km
Efficiency 6.2 km/kWh
Charging Rate ₹18.00 / kWh
Charging Efficiency 92%
Computed Result: ₹1,104.30 total trip cost (61.35 kWh grid energy drawn, ₹3.16/km)

Frequently Asked Questions

How should highway speed be factored into trip planning?

Highway driving at sustained speeds of 100–120 km/h increases consumption. It is recommended to reduce baseline urban efficiency inputs by 15% to 25% for highway calculations.

Does elevation gain increase trip consumption?

Climbing mountain passes increases energy draw, though a significant portion is recaptured through regenerative braking on the descent.

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