The chart most EV buyers see online lumps Level 2 and Level 3 together. They are very different machines. Level 2 is the right answer for almost every home; Level 3 is industrial infrastructure. Here's the actual comparison.
Power and speed
Level 2 runs on 240V and pulls 16–48 amps continuous, delivering 6–11 kW. That's 25–40+ miles of range per hour — enough to fill an empty battery overnight. Level 3 (DC fast charging) starts at 50 kW and goes up to 350 kW, putting 100–200 miles of range in a 20-minute stop.
Cost — equipment and install
Level 2 chargers are $400–$1,000 for the unit and $800–$2,500 to install in most Sonoma County homes. Level 3 chargers are $40,000–$150,000+ for the equipment alone, plus a utility transformer, three-phase service, civil work, and grid coordination — typically several hundred thousand all-in.
What your home can support
A typical 200A residential service can comfortably support a 48A Level 2 circuit. Level 3 requires three-phase power that simply doesn't exist on most residential streets — and even where it does, the upgrade cost is in the hundreds of thousands.
When does Level 2 not cut it?
Almost never, for residential. If you drive under 200 miles a day and park overnight, Level 2 fully replenishes daily. Edge cases — multiple high-mileage commercial vehicles, fleet hubs, multi-family with shared chargers — sometimes justify DC fast charging, and that's a commercial conversation.
Hybrid solutions for power users
Two Level 2 chargers on a load-shared 60A circuit, or a single 48A unit, covers nearly every dual-EV household. We design these regularly across Sonoma County.
Sonoma County · Since 1990
Talk to a licensed electrician about your Level 2 charger installation.
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