Complete Guide to Electric Vehicle Total Cost of Ownership
A Tesla Model 3 costs $38,990 in California. A Toyota Camry Hybrid costs $28,855. The Tesla is $10,000 more expensive on the sticker. But over 10 years, the Tesla totals ~$30,790. The Camry totals ~$46,355. The Tesla saves $15,565. This guide explains why sticker price is the wrong metric, how battery degradation affects long-term value, why electricity rates matter more than vehicle choice, and when an EV actually loses to a hybrid.
Why Sticker Price Is the Wrong Metric
The correct metric is total cost of ownership (TCO): purchase price − incentives + financing + fuel/energy + maintenance + insurance − resale value. Over 10 years, the EV's lower fuel and maintenance costs offset the higher purchase price. The break-even point is typically 3–7 years.
Scenario: Germany vs Norway
Same Tesla Model 3. Germany: €0.40/kWh electricity, €1.80/L gas. Norway: €0.10/kWh electricity, €2.20/L gas. In Germany, the EV is marginal (ICE often wins by ~€1,000 over 10 years). In Norway, EV wins by ~€20,000. The difference is not the vehicle — it's the energy prices. Energy cost drives ~60% of the TCO delta.
Scenario: Low vs High Mileage
5,000 mi/yr in California: break-even ~7.8 years. 20,000 mi/yr in California: ~2.1 years. 20,000 mi/yr in Texas (cheap electricity, cheap gas): ~1.2 years. High-mileage drivers in low-electricity regions hit break-even almost immediately.
Battery Degradation: The Real Numbers
- Tesla Model 3 (NCA): 5% degradation at 100k mi, 10% at 200k mi, 15% at 300k mi
- Tesla Model 3 (LFP): 2% at 100k mi, 5% at 200k mi, 8% at 300k mi (slower, lower density)
- BMW i4 (NMC): 8% at 100k mi, 15% at 200k mi
- VW ID.4 (NMC): 7% at 100k mi, 14% at 200k mi
- Hyundai Ioniq 5 (NMC): 6% at 100k mi, 12% at 200k mi
Methodology & Data Sources
- EPA Fuel Economy & WLTP — vehicle efficiency, updated annually
- EIA Electric Power Monthly / Eurostat — electricity rates, monthly/quarterly
- AAA Your Driving Costs / Edmunds TCO — maintenance schedules, annual
- Recurrent Auto Battery Health Database — 10,000+ vehicles, continuous
- Cox Automotive / ALG — depreciation curves, quarterly
- IRS / national authorities — EV incentives, updated as policies change
Battery degradation model: Dahn Lab (Dalhousie) cycle life + Tesla fleet data, temperature-adjusted.