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EV Charging at Home: How EVEMS Make the Experience Better and Safer
By Caroline Selber and Breda Potter
This article first appeared in our Communicator Magazine, Winter 2026 Issue.
WHAT IS AN EVEMS AND WHY DO YOU NEED ONE?
For such a big acronym, electric vehicle energy management systems (EVEMS) are deceptively simple: They manage electricity.
But why you need one might not be so obvious. And finding out is important; to power an electric vehicle charger, your home will need enough electrical capacity.
All homes have an electric panel with breaker switches. Condos and apartments, also known as multi-unit residential buildings (MURBs) or multi-unit dwellings (MUDs), will have an electrical panel for each unit, and often only one more panel for lights and outlets in shared spaces, like a hallway. These panels commonly have a limit of 100 amps, sometimes 200 amps. This means that all of the electronics and appliances that you have running in your home must draw power less than the maximum number of amps your panel can afford, or else a breaker will ...