Site-Wide Dynamic Load Management for EV Charging
Make more of the electrical capacity your site already has, without pretending software can change physics.
Fixed limits versus limits that respond to the site
A charger installed against a fixed limit is sized for its worst case. It is allowed a set number of amps, that allowance is reserved whether or not anything is plugged in, and the building's supply has to be built to carry it alongside everything else on site.
Dynamic load management replaces that fixed allowance with one that moves. AmpOn adjusts EV charging power in response to the building's other electrical demands and the limits configured for the site. As building demand rises, charging power can be reduced; as capacity becomes available, charging can increase.
What this is not. Load management adjusts EV charging. It does not control a building's other equipment, and it does not replace the protective devices an installation is required to have. It changes how much current the chargers are permitted to draw, nothing else.
Where the charging capacity comes from
EV charging gets the room between the building's own demand and the limit configured for the site. That gap is wide overnight and narrow when the building is busiest.
The same thing, in the console
Live site demand, each charger's limit, and what the site is actually drawing against it.
How it works in practice
The site limit
A configured ceiling for what the site may draw. It is set from the electrical design: the service, the switchgear and what else is on the supply. It is not guessed at from the charger count.
Sharing across chargers
Where chargers are on a shared circuit, the available power is divided across the sessions running at that moment. Several of the AmpOn AC units also share dynamically across their own two ports, which is why a dual-port unit can sit on a smaller breaker than its two ports added together.
What the site needs
Metering that sees the building’s demand, a communications path to the chargers, and chargers that accept a remote power limit. OCPP 1.6J and 2.0.1 units are the common case. Compatibility is confirmed per model before anything is committed.
Drivers still have to leave charged
A limit that is set too low produces unhappy drivers rather than savings. Dwell time, how much energy each session actually needs and how many bays are busy at once all shape what a sensible site limit is.
What it can and cannot do for the electrical work
This helps businesses balance charging needs with building operations, manage peak demand, and potentially reduce the need for costly electrical upgrades. Under NEC 220.57 the calculated load used to size a service may be taken from a listed energy management system's setpoint rather than full charger nameplate, which is the mechanism by which a managed site can need less service capacity than an unmanaged one.
It is not a guarantee of avoiding an upgrade. The calculated load cannot fall below the floor set by the largest single branch device, and whether any particular site can be served as it stands is a question for that site's electrical design. Available capabilities and results depend on site design, metering, charger compatibility, and configuration.
Building toward grid-connected charging
AmpOn's roadmap extends beyond site-level charging management toward coordination with utility signals, demand response, and measurable charging flexibility. Our goal is to help businesses manage charging around grid needs while accounting for driver requirements and site constraints.
These capabilities are not available today, and nothing on this page should be read as an offer of grid-service revenue. What runs now is the site-level behaviour described above.
Find out what your site's capacity allows
Tell us about the property and the parking, and we can work through what the supply supports and where load management would and would not help.