Do I Need a Panel Upgrade for a Level 2 EV Charger?
When a panel upgrade is actually needed for EV charging — and when it isn't.
Short answer
Not always. A proper load calculation determines if your existing service supports the additional charger load. Many 200A homes are fine; older 100A homes often need an upgrade.
Start with a load calculation
NEC requires a load calculation before adding a major continuous load. We perform this before quoting any EV install.
When an upgrade is needed
Repeated breaker trips. Old 100A service. Federal Pacific / Zinsco / Challenger panels. Multiple EVs planned. Solar or battery storage planned.
FAQ
Will I know in advance?
Yes. We confirm before the install date and quote the upgrade separately if needed.
Technical review
Technically reviewed by Tommy Anderson
Texas Master Electrician · ME #784684
Tommy Anderson is the Master Electrician behind Civitas Electrical LLC (TECL #41490), with more than 14 years of electrical field experience and over 7 years in supervisory and electrical-management roles across residential, commercial and industrial work.
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