Tesla Supercharger vs Electrify America: Cost and Reliability

For US road trips in 2026, Tesla Supercharger and Electrify America are the two largest DC fast networks. Both deliver 250 to 350 kW at peak, but the user experience differs.

Pricing snapshot

• Supercharger (Tesla owners): $0.35-0.45/kWh, lower off-peak
• Supercharger (non-Tesla via NACS): $0.40-0.55/kWh
• Electrify America (member): $0.36-0.42/kWh
• Electrify America (guest): $0.48-0.56/kWh + $0.10/min idle fee

Pricing is close. The decision usually comes down to network behavior, not price.

Reliability

Tesla Supercharger uptime in 2025 measured at 99.5 percent based on third-party trackers. EA averages 90-93 percent — meaning at any random EA station, there is a 7-10 percent chance of finding a broken or out-of-service stall. EA has invested heavily in 2025-2026 to close the gap, but Supercharger remains the road-trip benchmark.

Plug compatibility

Tesla owners get NACS native everywhere. Non-Tesla owners with NACS-equipped 2025+ models can plug in directly. Older CCS1 vehicles need a Tesla-supplied NACS adapter for Supercharger access. EA serves all CCS1 vehicles natively and most NACS vehicles via adapter.

Practical guidance

If you drive a Tesla, use Supercharger. If you drive a 2025+ non-Tesla with NACS, alternate based on route convenience. If you drive an older CCS1 vehicle, plan around EA primarily and use Supercharger via adapter on tougher routes. The cost gap matters less than uptime.