Hub · Electrical Setup
Half of every home-charging purchase is electrical work: a panel that may or may not have room, a breaker sized by the 80% rule, a wire run that may cross a finished basement. This hub covers that half in plain language — what an electrician is actually doing, what the code requires, and where the money goes — so a quote reads like a document instead of a dare.
80%the continuous-load rule: a 40A charger needs a 50A breaker
200Apanel service that makes most installs straightforward
2 slotsof spare breaker space a 240V circuit needs
What this hub covers
- Panel capacity: how to read your main breaker, count spare slots, and understand a load calculation — the three facts that decide your install.
- NEMA 14-50 vs. hardwired: plug-in flexibility vs. hardwired reliability and full 48A output, including the GFCI-breaker nuisance-trip issue.
- Load management: EVEMS devices and load-sharing chargers that let a full 100A panel charge safely without a service upgrade.
- Permits and inspection: why the permit is the cheap part, what inspectors look at, and what unpermitted work does to insurance and resale.
Not sure where your panel stands? The Electrical Readiness Checker walks the three questions — panel size, spare slots, parking spot — and gives you a verdict before you call anyone.
For what the work should cost once you know your setup, see the Install Cost Guide — including the eleven line items every quote should show.