Do You Need an Electrical Panel Upgrade for EV Charging?
Many homes don't need a panel upgrade to add a Level 2 charger. The only reliable way to know is a NEC load calculation, usually the optional method in Article 220.83. If the math comes up short, a load-management device under NEC 625.42 often solves the problem for less than a full upgrade. A 100A-to-200A upgrade runs roughly $1,300 to $3,000 (as of Q2 2026); utility service work, if required, costs and delays more.