When multiple stations are connected, the charging power must match the capacity of the electrical grid. The same applies when using a charging station simultaneously with other high-power appliances. Efficient energy distribution is ensured by the Dynamic Load Management (DLM) module, which is important for businesses, households, and public spaces. It is also essential for solar management control.
Dynamic Load Management (DLM) and Its Principle
For efficient energy distribution to individual devices, it is necessary to adjust the charging power according to the current load and grid capacity. However, AC stations need adequate information for this.
This is exactly what the DLM module takes care of, as it continuously monitors overall consumption. It passes the measured values to the charging station's control unit. This makes charging power management dynamic. Without the module, you could only manually limit the maximum charging power to a certain value, and thus you would not utilize the full potential of the station.
Options for Using the Power Management Module
With information about real-time consumption at a given location, the dynamic load management module can operate in several ways. This makes it suitable for multiple types of measurement.
Connecting Multiple Charging Stations
When multiple charging stations are connected, dynamic management is important -- it can flexibly adapt to the number of charging points and their current load. It then optimally distributes the charging power. When it determines that no other station is in operation and there is sufficient available power, it allows full-speed charging.
The control unit also allows more advanced settings, such as prioritization of charging stations so that some always have a larger reserved charging power.
Operation with Other High-Power Appliances
Charging stations are not the only high-power appliance in a household or business premises. The maximum consumption is limited by the main circuit breaker rating. If you were charging at home, the heat pump kicked in, and the washing machine was running, the current draw would suddenly be large and the breaker would trip.
The dynamic load management module can prevent these situations. Because it continuously monitors the load, it responds flexibly to sudden changes. When a high-power appliance is switched on, it immediately reduces the charging power of the station and increases it again as conditions allow.
Cheaper Energy
Thanks to its ability to flexibly adapt to the number of charging points and automatically regulate power according to current grid consumption, DLM optimizes energy use -- for example, by increasing power during nighttime hours when energy is cheaper.
Solar Management
The DLM module is also suitable for solar management control and efficient use of surplus energy. You will maximize the use of energy from photovoltaic panels and reduce the need for charging from the distribution grid.
The control unit can operate in several modes. It can start charging, for example, only from surplus energy after exceeding set thresholds, or intelligently combine energy from the grid and PV systems. Read more detailed information about DLM module modes and settings.
DLM: A Solution for Households and Large Facilities
At a time when the number of electric vehicles is growing, creating efficient charging infrastructure is a pressing topic. In this regard, DLM is becoming a key technology for managing charging processes. Moreover, the modules are available not only for business premises and commercial spaces (where they are practically a necessity) but also for households.
For smaller installations, the AC sensor is suitable, enabling communication with up to 8 charging points. For large premises and operations, the ARM Unit is designed, allowing expansion to up to 80 charging points.
The Dynamic Management Module and Its Components
The heart of the module is the evaluation unit, which handles measurement on individual phases of the supply cables and provides the measured values to the MyBox charging station. It is installed in the electrical distribution board, together with three measuring current clamps that are snapped onto the supply conductors.
The evaluation unit communicates with charging stations wirelessly via Wi-Fi. It also supports wired connection (e.g., via ModBus RS485). Combined with the MyBox mobile app, setup and management will be simple and intuitive. You will always have current information about grid load and station operation at your fingertips.
Do you need advice on choosing a charging station or efficient energy distribution using DLM? Contact us. We will be happy to answer your questions and, if interested, connect you with electrical installation companies that will handle the preparation and installation.
Frequently asked questions
What is dynamic load management (DLM)?
Dynamic load management (DLM) is a system that continuously measures a site's total electrical consumption and automatically adjusts the power delivered to EV charging stations in real time. It ensures charging never exceeds the available grid capacity, so the main breaker won't trip even when several chargers or other high-power appliances run at once.
How is dynamic load management different from static load management?
Static load management assigns each charger a fixed maximum power regardless of what else is running, so capacity is wasted when chargers are idle. Dynamic load management measures real-time consumption and continuously redistributes the available power — charging at full speed when there is spare capacity and throttling automatically when other loads switch on.
How many charging stations can a DLM module control?
It depends on the hardware. The MyBox AC sensor suits homes and smaller installations and communicates with up to 8 charging points, while the ARM Unit is designed for large sites and can manage up to 80 charging points.
Does dynamic load management work with solar panels?
Yes. The DLM module supports solar (PV) management, letting you charge from photovoltaic surplus only, or intelligently combine grid and solar energy based on configurable thresholds — maximising self-consumption and reducing draw from the distribution grid.
