Logistics lives or dies on one number: the total cost per kilometre a truck carries over its working life. The sticker price of a diesel or electric tractor is the part everyone quotes — and the part that decides the least. The bill that actually lands on a 3PL or a fleet owner is assembled over years, from energy, maintenance, downtime, battery life and what the asset is worth when it comes off the road.
This guide is written for the people who read a freight contract to the rupee: 3PLs, fleet owners, and logistics and industrial buyers comparing diesel against electric on the metric that matters. It walks through each cost driver, explains why lifetime cost-per-km beats the purchase price as a decision basis, and shows where high-power CCS2 corridor charging changes the turnaround maths. It ties to Ampinity's Electric Truck-as-a-Service (eTaaS) near the end — but the economics come first, and they stand on their own.
Why cost-per-kilometre beats sticker price
A purchase price is a single moment. A truck earns — and costs — across years of corridors, climbs and turnarounds. Comparing a diesel tractor with an electric one on their respective sticker prices answers a question almost nobody in freight actually faces, because almost nobody pays for a truck and then stops paying. The bill that matters is cumulative: every kilometre adds energy, wear, the risk of a breakdown and a small erosion of the asset's residual value.
Cost-per-kilometre rolls all of that into one figure that can be held against a freight rate. It is the number a planner can defend to a customer and a number a financier can underwrite. It also exposes the trap in sticker-price thinking: a cheaper truck that drinks more fuel, sits idle more often, or is worth little at end of life can quietly cost more per kilometre than a more expensive one that runs clean and keeps moving.
For electric heavy freight in particular, the lifetime view is not a nicety — it is the whole case. The capital sits higher at purchase and the running cost sits lower across the life. Read only the first number and the comparison is misleading; read the cost-per-km over the vehicle's life and the picture changes.
The cost drivers, one by one
A heavy truck's cost-per-kilometre is assembled from a handful of drivers. Each is worth understanding on its own, because the cheapest-looking choice on one line can be the most expensive on another.
Capital is the purchase or financing cost of the truck itself, spread across the kilometres it will run. A higher capital figure amortised over a long, high-utilisation life can produce a lower per-km contribution than a cheaper asset run lightly.
Energy is the cost of moving the load — diesel at the pump or electricity at the charger. It is also the most volatile line: a fuel price that shifts mid-contract moves the whole cost base under a freight rate that was priced before it changed.
Corridor and depot charging is where electric freight is won or lost on time. Charging that is slow, scarce or off-route turns into idle hours; charging that is fast and sits on the corridor keeps the truck earning. The hardware power rating directly sets how long a stop takes.
Maintenance reflects how many failure points a vehicle carries and how often they need attention. Fewer moving parts and a supported service path mean fewer unplanned costs and a cleaner cost line.
Battery life governs how long the most valuable component holds its capacity — and how that capacity is treated by the cell chemistry. A cell engineered for long cycle life and the full usable range changes the economics of the pack over the truck's life.
Downtime is the cost nobody quotes and everybody pays: the day a truck sits, the load that strands, the route that goes uncovered. It is often the single largest hidden contributor to a poor cost-per-km.
Residual value is what the asset is worth when it leaves the fleet. It is hard to price in advance, which is exactly why it is a risk — and one that a fleet on a balance sheet carries alone unless it is transferred.
High-power CCS2 charging and the turnaround maths
For a long-corridor truck, charging speed is not a comfort feature — it is an economic input. Every minute a vehicle spends plugged in and not moving is a minute it is not earning, so the power rating of the charger feeds straight into cost-per-kilometre.
Ampinity's trucks charge on CCS2 with dual-gun charging at 800 kW / 1.6 MW. At that power, a corridor stop becomes a short pause rather than a shift lost. The underlying cell technology is built for it: the Japanese LTO (lithium titanate) chemistry the heavy fleet runs on is rated for rapid charging — to about 80% of capacity in roughly six minutes — across the full 0–100% usable range, with operation down to −30 °C and a cycle life of 20,000-plus. The pack is engineered to take fast, repeated opportunity charging in stride rather than degrade under it.
The corridor matters as much as the connector. Charging is operated along three programmes of national corridor — the expressway spine including the Golden Quadrilateral, the Bharatmala freight arteries, and the NICDC industrial corridors — so the fast charge sits where the freight already runs. A megawatt-class stop on the route is the difference between turnaround measured in minutes and a planned overnight that costs a working day.
- Charger power: CCS2 dual-gun, 800 kW / 1.6 MW — sized so a corridor stop is a pause, not a shift lost.
- Cell behaviour: Japanese LTO, ~80% charge in roughly 6 minutes, full 0–100% usable range, −30 °C operation, 20,000+ cycles.
- Placement: charging operated along the expressway spine, Bharatmala freight corridors and NICDC industrial corridors — on-route, not off it.
The cost-driver table
The table below summarises each driver, what it covers, and how it behaves over the vehicle's life rather than at the moment of purchase. Read together, the rows make the case for judging the truck on its lifetime cost-per-kilometre.
| Cost driver | What it covers | Why it decides cost-per-km, not sticker price |
|---|---|---|
| Capital | Purchase or financing of the truck, spread across its kilometres | Amortised over a long, high-utilisation life, a higher capital figure can still yield a lower per-km contribution |
| Energy | Diesel at the pump or electricity at the charger to move the load | The most volatile line; a mid-contract price move shifts the whole cost base under a fixed freight rate |
| Corridor & depot charging | Fast charging on-route and overnight at the depot | Charger power (CCS2 800 kW / 1.6 MW) sets turnaround time; on-route placement keeps the truck earning |
| Maintenance | Servicing and the failure points the vehicle carries | Fewer moving parts and a supported service path mean fewer unplanned costs and a cleaner cost line |
| Battery life | Capacity retention of the pack over years of duty | Japanese LTO is engineered for long cycle life and the full usable range, changing pack economics over the life |
| Downtime | Days the truck sits — stranded loads, uncovered routes | The cost nobody quotes; often the single largest hidden contributor to a poor cost-per-km |
| Residual value | What the asset is worth when it leaves the fleet | Hard to price in advance — a real risk the owner carries alone unless it is transferred |
Energy-price risk: the line nobody quotes
Freight is priced to the rupee and then wrecked by the cost nobody quoted. The breakdown that strands a load, the day the truck sits idle, and the diesel bill that moves under you mid-contract are the three that most often turn a profitable rate into a loss.
Energy-price exposure is structural for a diesel fleet. The rate is agreed at one fuel price and delivered at another, and the gap is the operator's to absorb. Electrification changes the input but not, on its own, the exposure — a fleet still buying electricity on the open market is still carrying a moving cost.
The way to remove the risk is to fix it inside the contract rather than leave it at the pump. That is the structural move that converts a volatile cost-per-km into a steady one a planner can hold across a quarter — and it is the move eTaaS is built around.
How eTaaS fixes the per-kilometre rate
Ownership exposes a fleet to three moving costs at once: the asset, the energy and the repair bill. Electric Truck-as-a-Service (eTaaS) fixes all three to a single per-kilometre rate. The operator carries no truck on the balance sheet, no exposure to the fuel market, and no maintenance lottery — the company that built the truck and runs the corridor carries them instead.
The rate bundles the truck, its energy, corridor charging, servicing and assurance, billed by the kilometre. It is one rupee-per-kilometre rate, fixed for the contract, with fuel-price swings absorbed rather than passed on. The unplanned costs — downtime, the energy bill and every repair — come off the operator's books, and the residual-value risk goes with them. What is left is freight capacity a 3PL can scale on routes, not on capital.
It runs on the high-power CCS2 corridor network Ampinity operates end to end, on trucks built for the duty — four GVW classes from 10 to 55 tonnes, in tractor and dumper bodies, with up to 25% gradeability so a truck pulls its rated tonne-kilometre on a real climb. The economics that this guide argues for — lifetime cost-per-km over sticker price — are exactly what the eTaaS rate is designed to deliver: a freight cost line a planner can hold steady, not defend against.
- In the rate: the truck, its energy, corridor charging, servicing and assurance — billed by the kilometre.
- How you pay: one rupee-per-kilometre rate, fixed for the contract; fuel-price swings absorbed, not passed on.
- Off your books: the unplanned cost — downtime, the energy bill and every repair, plus residual-value risk.
- Where it runs: the high-power CCS2 corridor network operated end to end, on trucks built for tonnage and gradient.