Do I need a 200 amp or 400 amp electrical panel?

March 30, 2026 by Lilly Gastineau

Direct Answer

Most homes need a 200 amp panel, which supports standard appliances and modern electrical needs. A 400 amp panel is typically only necessary for very large homes, multiple HVAC systems, or homes with high electrical demand like EV chargers, hot tubs, and additions.

When 200 amps is enough

Average-sized homes
Standard appliances
One EV charger
No major additions

When you might need 400 amps

Large homes (4,000+ sq ft)
Multiple HVAC systems
Multiple EV chargers
Workshops or heavy equipment

How to know for sure

An electrician can perform a load calculation to determine your needs.

Need help deciding?

We can evaluate your home and recommend the right panel size.

👉 Request an assessment today.

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