Tesla Supercharger vs IONNA
IONNA is cheaper at 32¢/kWh vs 36¢/kWh for Tesla Supercharger. For a 60 kWh battery, IONNA saves you $1.92 per full charge. Over 200 charges per year, that is $384.00 annually.
Side-by-Side Comparison
| Feature | Tesla Supercharger | IONNAWinner |
|---|---|---|
| Type | DC Fast Charge | DC Fast Charge |
| Standard Rate | 36¢/kWh | 32¢/kWh |
| Member Rate | None | None |
| Membership Fee | — | — |
| Stations | 50,000 | 500 |
| Connectors | NACS | CCS, NACS |
Cost by Battery Size
For an 80% charge (the typical fast-charge session).
| Battery | Tesla Supercharger | IONNA | Difference |
|---|---|---|---|
| 40 kWh | $11.52 | $10.24 | Tesla pays +$1.28 |
| 60 kWh | $17.28 | $15.36 | Tesla pays +$1.92 |
| 75 kWh | $21.60 | $19.20 | Tesla pays +$2.40 |
| 100 kWh | $28.80 | $25.60 | Tesla pays +$3.20 |
| 123 kWh | $35.42 | $31.49 | Tesla pays +$3.94 |
Why Choose Tesla Supercharger
- ✓Largest network in North America with ~50,000 stalls
- ✓Consistently reliable uptime (>99%)
- ✓Integrated navigation in Tesla vehicles
- ✓Fast 250 kW peak speeds at V3 stations, 325 kW at V4
Why Choose IONNA
- ✓Automaker-backed with committed $1B+ investment
- ✓Competitive $0.25–$0.35/kWh pricing
- ✓High-power 400 kW capable architecture
- ✓Planned 30,000 stalls by 2030
Which One Actually Fits Your Driving?
Rate alone doesn't decide the winner. IONNA's 32¢/kWh is cheaper than Tesla Supercharger's 36¢/kWh, but the better network is the one whose stations are where you actually drive. Tesla Supercharger operates 50,000 stations; IONNA operates 500. Check PlugShare or A Better Routeplanner for your specific corridors before subscribing — a cheaper rate at a network with a station five miles off your route is more expensive than a more costly network at the exit you're already taking.
Membership economics are the other hidden variable. Tesla Supercharger has no paid membership — the rate you see is the rate you pay. IONNA also has no membership plan, so pricing comparisons stay simple.
Connector compatibility is the other decision gate. Tesla Supercharger supports NACS, while IONNA supports CCS, NACS. If your EV is a 2025+ Tesla, NACS is native. If you drive a pre-2024 Ford, GM, Hyundai, or Kia, CCS is your primary plug — most OEMs are now shipping free NACS adapters to owners. Check your car's connector and which networks support it natively before choosing a home network.
At 15,000 miles per year on a mid-size EV (roughly 50 sessions at a 75 kWh battery), the annual cost difference between IONNA ($960.00) and Tesla Supercharger ($1,080.00) is $120.00. That's the financial argument. The practical argument still comes down to location coverage and reliability — which varies more by region than any published rate card shows. For a full picture, see our home vs public analysis and the full network comparison.
Data sources: Published network rate cards from Tesla Supercharger and IONNA; station counts from network and PlugShare data; manufacturer battery specs. Prices vary by location and time; verify in-app before charging.