EV TCO conversations stop at $/kWh. Fleet spreadsheets add purchase price and incentives. Both often skip variable maintenance that moved when you dropped gasoline—tires first, brakes second (often slower), tires again when torque meets mass.
The savings stack (and what it omits)
| Line item | EV tendency | Notes |
|---|---|---|
| Fuel / energy | Lower | Home L2 + off-peak wins |
| Oil & filters | Gone | Real savings |
| Brakes | Often lower | Regen reduces pad wear |
| Tires | Often higher | Torque, weight, LRR compounds |
| Insurance | Mixed | Varies by market & model |
| Depreciation | Mixed | Incentive and model year |
Net TCO requires both sides of the ledger—not charging alone.
Fuel savings are visible; tires are silent
Drivers see charging apps. Tire wear shows up 18 months later as a four-digit invoice. Model it early:
- Annual km (private odometer or fleet miles × 1.609)
- Installed set price for your size/load index
- ICE baseline life km from your last gas vehicle or class average
- EV wear % slider (start 25%)
Output:
- EV annual tire depreciation
- ICE reference annual
- Difference — add this to maintenance budget, subtract from fuel savings for honest net
Worked mindset (not a quote)
If you save $1,200/yr on energy vs. gas but tires cost +$350/yr vs. your old sedan, net energy advantage is $850—still positive, but marketing “$1,200 saved” was overstated.
Fleet TCO: multiply hidden lines
Fleet managers aggregate:
Fleet tire delta ≈ (EV premium per vehicle/yr) × vehicle count
Drop that into EV Fleet TCO vs. Gas alongside diesel/gas energy. A 25-vehicle pilot with $280/yr tire premium is $7,000/yr—small vs. fuel, large vs. zero.
When tires swing the decision
- High annual km delivery vans
- Performance OEM sizes ($1,000+ sets)
- Aggressive drivers (telemetry proves it)
- Under-inflated operations (fix process before blaming EV)
Other “beyond electricity” costs to track
- Public charging idle fees — Public Charging Cost
- Pre-conditioning before DCFC — Pre-conditioning Cost
- Winter range loss — more kWh, indirect $/mi rise
Tires are the easiest hidden cost to quantify—do that first.
Private owner decision flow
- Run EV vs. Gas Savings for energy
- Run EV Tire Wear Cost for rubber
- Subtract tire premium from savings → adjusted annual benefit
- Decide if adjusted benefit still clears loan payment delta
Related reading
- EV Tire Wear Economics Guide — why the model exists
- Why EV Tires Wear Faster — torque, mass, PSI
Electricity is the headline. TCO is the footnote that decides whether the headline profit survives contact with the real world—start with tires, then build the rest of the stack honestly.