🏠 Home EV Charging: Connector Reality in North America
- J1772: Widest compatibility today (non-Tesla EVs)
- NACS: Fastest-growing standard led by Tesla
⚡ Public DC Fast Charging
- CCS: Many stations, fragmented experience
- NACS: Tesla Supercharger offers the best reliability and uptime
Long-Term Trend
- J1772 (AC) will remain for many years
- CCS is gradually being replaced by NACS
- NACS is becoming the unified North American interface
Recommended Home Charger Power by Connector
| Connector | Recommended Power | Typical Use |
|---|---|---|
| J1772 | 32A–40A (7.7–9.6 kW) | Most non-Tesla homes |
| NACS | 40A–48A (9.6–11.5 kW) | Tesla home charging |
Installation Cost Impact by Interface
- J1772 vs NACS: Similar electrical cost (240V circuit)
- Main cost drivers: panel capacity, wire length, breaker upgrade
- 48A chargers may require heavier wiring (6 AWG) → higher labor cost
If You Build EV Products: What to Support
- Must support: J1772 (AC), NACS
- Optional / declining: CCS hardware (DC only products)
- Adapters are acceptable short-term; native NACS is future-proof
Tesla Wall Connector (NACS, Level 2)
Up to 48A / 11.5 kW, supports all Tesla models, Wi-Fi enabled, and power-sharing for multiple vehicles.
View Tesla Wall Connector
Bottom Line
For homes: choose based on vehicle type today, but plan for NACS tomorrow. For businesses and products: NACS + J1772 is the safest long-term strategy.
For homes: choose based on vehicle type today, but plan for NACS tomorrow. For businesses and products: NACS + J1772 is the safest long-term strategy.
