EV vs ICE cost comparison is the process of comparing the total cost of owning and operating an electric vehicle (EV) versus an internal combustion engine (ICE) vehicle over a defined period and usage profile. For fleets and businesses, the comparison is typically based on total cost of ownership (TCO) per km/mile, per route, or per vehicle-year—rather than purchase price alone.
What Is an EV vs ICE Cost Comparison?
A proper comparison measures all relevant costs across the same operating conditions.
– Same vehicle class and duty cycle (payload, route type, daily mileage, dwell time)
– Same ownership period (e.g., 3–7 years for fleets)
– Same annual mileage and utilization assumptions
– Same cost boundaries (include or exclude charging infrastructure consistently)
– Same accounting approach (cash cost vs full depreciation vs lease model)
The output is usually cost per km/mile, cost per vehicle per year, or total cost over the ownership period.
Why EV vs ICE Cost Comparison Matters
– Supports procurement decisions based on economics, not just CAPEX
– Identifies which routes and vehicle segments electrify first with lowest risk
– Helps plan charging strategy (depot vs public) and grid upgrades
– Quantifies sensitivity to fuel and electricity price changes
– Builds credible ROI cases for management approvals, tenders, and financing
– Links operational reliability (uptime, charging access) to real cost impacts
Key Cost Components Compared
Upfront and Financing Costs
– Vehicle purchase price or lease cost
– Financing cost, interest rate, insurance
– Incentives, grants, tax exemptions (market-dependent)
– Registration fees and vehicle taxes
Energy and Fuel Costs
– ICE: fuel price, fuel consumption (L/100 km or mpg), fuel card fees
– EV: electricity price, vehicle efficiency (kWh/100 km), charging losses
– Tariff structure impact: time-of-use pricing, peak pricing, and demand charges (site-dependent)
– Public charging vs depot charging mix (public is often higher cost per kWh)
Maintenance and Service Costs
– ICE: oil changes, filters, exhaust, transmission-related maintenance, more moving parts
– EV: typically fewer drivetrain service items, but higher emphasis on tires and thermal systems
– Brake wear differences due to regenerative braking
– Warranty coverage, service intervals, and downtime cost for service visits
Depreciation and Residual Value
– Expected resale value at end of period
– Residual value uncertainty (market perception, battery health, mileage, policy changes)
– Fleet resale channels and remarketing costs
Infrastructure and Operational Costs
Often critical for fleets and workplaces.
– Charger hardware + installation + civil works
– CPMS/platform fees, connectivity, payment processing (if applicable)
– Maintenance and SLA costs for chargers
– Downtime and productivity loss due to charging constraints, queues, or low uptime
– Driver time cost for detours or long charging events (especially if public charging is used)
How EV vs ICE Cost Comparison Is Calculated
A common structure:
– Total cost = CAPEX/lease + energy/fuel + maintenance + taxes/fees + infrastructure + downtime − residual value
– Cost per km = total cost ÷ total distance
For fleets, many comparisons also include:
– Cost per route, cost per delivery, or cost per operating hour
What Usually Drives the Result
– High annual mileage often improves EV economics because energy and maintenance savings scale
– Electricity price and tariff structure can swing results, especially where demand charges apply
– Public charging reliance can reduce EV cost advantage versus depot charging
– Residual value assumptions can dominate the result in both EV and ICE models
– Operational constraints (route fit, charging windows) can add hidden costs if not planned
Best Practices for a Fair Comparison
– Compare like-for-like vehicles and real duty cycles (payload, speed profile, stops)
– Use measured or validated efficiency assumptions (kWh/100 km, L/100 km)
– Model multiple energy price scenarios (low/base/high)
– Separate variable costs (fuel/electricity) from fixed costs (depreciation, infrastructure)
– Include charging infrastructure costs only if the business is actually paying for them—and allocate consistently (per vehicle or per kWh)
– Include downtime and operational friction for fleets (readiness is a cost driver)
Common Mistakes to Avoid
– Comparing only purchase price instead of full TCO
– Using optimistic electricity prices while ignoring demand charges or peak events
– Ignoring public charging costs when the operation will rely on it
– Assuming identical utilization without accounting for charging time and workflow changes
– Mixing different time periods or inconsistent residual value assumptions
– Excluding infrastructure costs in EV models but including fueling infrastructure costs indirectly for ICE
Limitations to Consider
– Results vary widely by country due to taxes, incentives, and energy prices
– EV vs ICE economics differ by segment (cars vs vans vs heavy-duty)
– Battery health and residual value remain a major uncertainty in some markets
– Charging access and reliability can change real-world cost even if the spreadsheet looks favorable
– Policy changes can shift both EV and ICE costs quickly (taxes, access rules, incentives)
Related Glossary Terms
EV Total Cost of Ownership
EV Charging Cost per kWh
Demand Charges
Depot Charging
Energy Intensity
EV Fleet Transition
Charging Uptime
Energy Margin Optimization