Can my panel handle an EV charger?
Check your 100, 150 or 200 amp service before you buy the charger, heat pump or induction range. Three code methods side by side, every step of the math, and options if it comes out over.
Guides people actually ask about
Can a 100 amp panel handle an EV charger?
How to check whether a 100 amp service can take a Level 2 EV charger, with a worked 220.83 example, charger sizes that usually fit, and what to do if it calculates over.
Can a 200 amp panel handle a heat pump (and an EV)?
What a whole-home heat pump adds to a 200 amp service load calculation, how backup heat strips change the picture, and how to add a heat pump, EV charger and induction range together.
Induction range panel requirements
What circuit and panel capacity an induction range needs, how ranges are counted in an existing-home load calculation, and options for 100 amp homes.
What is EV load management?
Plain-language guide to EV load management and energy management systems (NEC 625.42 and 750.30), how they avoid a service upgrade, and what to ask before buying.
How the NEC 220.83 calculation works
Step-by-step explanation of the NEC 220.83 existing dwelling load calculation (120.83 in NEC 2026), the (A) vs (B) split, and how it compares with 220.82 and 220.87.
How to read your meter, panel label and appliance nameplates
Find your service size, main breaker rating, square footage and appliance nameplate watts, and how to get 12 months of peak demand from your utility.
2026 NEC changes for EV chargers, heat pumps and new loads
What the 2026 NEC changed for existing-home load calculations: Article 120, 2 VA per sq ft, new-load demand factors, EVSE at 80%, power control systems, and which states use it.
Which NEC edition applies to my house?
How to find which edition of the National Electrical Code (2020, 2023 or 2026) your state or city enforces, with links to NFPA's adoption map.
Questions to ask your electrician before a panel upgrade
A checklist of questions to ask before paying for a service upgrade for an EV charger, heat pump or induction range: load calculation, conductors, breaker spaces, load management and permits.
Questions
Can my panel handle an EV charger?
Enter your service size, square footage and appliances. The calculator runs the NEC existing-dwelling method and shows the calculated load in amps versus your service rating, plus charger settings that fit.
Which NEC edition should I pick?
Pick the edition your city or state enforces. As of August 2026, NFPA lists 2023 in 20 states and 2026 in six; others use 2020 or older.
Is this a permit calculation?
It mirrors the structure of city load-calculation worksheets so you can discuss it with your electrician, but it is an estimate, not an engineering stamp. Your electrician and AHJ decide.
Why do the three methods give different answers?
They use different rules: 220.83 reduces existing load and adds new load by edition, 220.82 recalculates the whole house with a 10 kVA first tier (2023), and 220.87 uses your measured peak demand.