Do I Need a Panel Upgrade for an EV Charger?

One of the first things we check before any EV charger install: can your electrical panel actually handle it? Here's how to tell.

It Comes Down to Capacity

A Level 2 charger typically needs a 40 to 50 amp circuit. Your panel has a total amperage — usually 100, 150, or 200 amps — and everything in your home draws against it. The question is whether there's enough headroom left for the charger.

Signs You Might Need an Upgrade

• You have a 100-amp panel — common in older homes, and often already near capacity
• Your panel is full — no open slots for new breakers
• You already run heavy loads — electric range, dryer, AC, hot tub all add up
• Breakers trip regularly — a sign you're already near the limit

Signs You're Probably Fine

• You have a 200-amp panel — usually plenty of room for an EV circuit
• Open breaker slots — physical room to add the circuit
• A newer home — modern builds are typically sized with headroom

The Only Way to Know for Sure

Rules of thumb help, but the real answer comes from measuring your actual electrical load — not just the panel's rating. We do that before quoting, so you get a straight answer instead of a guess. If you do need an upgrade, see our panel upgrades page.

Call (715) 396-1720 and we'll assess your panel and tell you exactly where you stand.