TL;DR
An EV load calculation is the NEC Article 220 arithmetic an installer performs to verify a home's electrical service can absorb a car charger's continuous draw on top of existing demand, using either the standard method or the optional method that applies demand factors to square footage and fixed appliances. The result decides among a full-power circuit, a load-managed charger, or a service upgrade.
What it means
An EV load calculation is the NEC Article 220 arithmetic an installer performs to verify a home's electrical service can absorb a car charger's continuous draw on top of existing demand, using either the standard method or the optional method that applies demand factors to square footage and fixed appliances. The result decides among a full-power circuit, a load-managed charger, or a service upgrade. Permit offices increasingly require the worksheet with the application, especially on older 100-amp services.
Where it sits in the glossary
EV load calculation is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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