Load management (DLM, Dynamic Load Management) is a system that intelligently shares power among multiple charging devices without exceeding a site's electrical capacity. It measures the building's instantaneous total consumption and raises or lowers the current supplied to the charging devices in real time; this way many vehicles can charge safely at the same time without straining the main fuse, and an expensive infrastructure or transformer upgrade is often not needed. Unlike static sharing, it distributes spare capacity dynamically according to instantaneous demand: it gives each device more power when few vehicles are connected and balances automatically as demand rises. In multi-device installations such as apartment car parks, workplaces, shopping centres and vehicle fleets, load management is a practical necessity. Bemis's OCPP-compatible smart models are suitable for load management via central management software. For example, in an apartment car park a single connected vehicle is given full power, while when many vehicles are plugged in at the same time in the evening the system automatically divides the current to keep charging them all without tripping the building's main fuse. This way the existing electricity subscription is often sufficient and the cost of a transformer upgrade is avoided.
DLM (dynamic load management): the total power of the main board is shared intelligently between the units, so the main fuse does not trip.
Frequently Asked Questions
What does load management (DLM) do?
Load management is a system that intelligently shares power among multiple charging devices without exceeding a site's electrical capacity. It measures the building's instantaneous total consumption and adjusts the current supplied to devices in real time, so many vehicles can charge safely at once without straining the main fuse, and an expensive infrastructure upgrade is often unnecessary.
How is dynamic load management different from static sharing?
Unlike static sharing, it distributes spare capacity dynamically according to instantaneous demand. It gives each device more power when few vehicles are connected and balances automatically as demand rises. For example, in an apartment car park a single connected vehicle gets full power, while when many vehicles are plugged in in the evening the system divides the current automatically.
Does load management save the cost of a transformer upgrade?
Yes, thanks to load management the existing electricity subscription is often sufficient and the cost of a transformer upgrade is avoided. It is a practical necessity in multi-device installations such as apartment car parks, workplaces, shopping centres and fleets. Bemis's OCPP-compatible smart models are suitable for load management via central management software.