Why EV Load
Will that EV charger fit your panel? EV Load applies the 125% continuous-load rule, checks service utilization, and suggests breaker and copper wire sizes the NEC way.
125% rule
EVSE is continuous load — sized correctly, automatically.
Panel fit check
Service size vs existing demand vs the new charger.
Breaker ladder
Standard breaker sizes, rounded the code way.
Wire suggestion
Copper sizes from the ampacity table (75°C).
Solar 120% rule
Busbar check when PV shares the panel (Pro).
Max-EVSE hint
The biggest charger your panel can take without upgrades.
How it works
Enter your service
Panel amps and existing demand.
Enter the charger
kW or amps, voltage.
Read the verdict
Fits / doesn't fit, breaker and wire suggestion.
FAQ
Is this NEC-based?
Yes — the continuous-load 125% factor, standard breaker sizes and the ampacity table follow NEC practice. Always confirm with a licensed electrician.
Can it check solar + EV together?
Yes — the 120% busbar rule check is built in.
Does it replace an electrician?
No — it prepares you for the conversation and catches undersized plans early.
Is it verified?
The sizing chain is covered by automated tests against published code values.