Load balancing FAQ

Load balancing helps an EV charger use available electrical capacity without overloading the building connection. It is especially relevant for homes with heat pumps, solar panels, batteries or multiple charging points.

Key questions

What is dynamic load balancing?

Dynamic load balancing adjusts the charging power based on real-time electricity use in the building. When other appliances need more capacity, charging can slow down. When capacity is available, charging can increase again.

When do I need load balancing?

Load balancing is recommended when the available connection is limited, when multiple chargers are installed, or when the building also uses high-consumption systems such as heat pumps, HVAC, kitchens, workshops or battery systems.

Does load balancing matter for design?

Yes. In premium projects, the best result is both visually calm and technically stable. Planning load balancing early avoids visible later additions, oversized infrastructure or compromises in charger placement.

What load balancing systems does Veton support?

Veton supports static load balancing out of the box and dynamic load balancing through external meters and energy management systems. The underlying charging controller is the Phoenix Contact CHARX series, which is OCPP-compatible and integrates with grid-aware controllers such as Xemex SCC and energy management platforms including Qbus Luqas, Niko Home Control and LifePowr FlexiO. For larger projects, up to 48 Veton charging points can be controlled in one centrally managed group, with multiple groups possible.

What about sites with more than 48 charging points?

For large installations — apartment buildings, depots, workplaces and charging hubs — Veton offers Vetonlm, our own load- and energy-management system that runs on-site and scales to 100+ charging points, well beyond the 48-point group limit. It shares the available power fairly across every charge point and across all three phases, so a single-phase car never blocks capacity on the other two. It holds the whole site under its grid connection and monthly capacity-tariff peak, adapts in real time as the building’s other loads change, and needs no cloud connection and no monthly fees.

How does Veton protect my home fuse?

Fuse protection is always on, in every mode — it is a safety limit, not an option. The charger keeps the car within the headroom left after the rest of the house has taken what it needs: it eases the car back when the house draws more and ramps it up again when things quiet down. It is three-phase aware, limiting on the busiest phase, and where a site has several chargers it shares the available current fairly between them.

Can I prove the savings before switching systems?

Yes — through the vetonlm shadow trial. A vetonlm controller watches your site for about a month without touching the chargers, computing every decision it would make. At the end it produces a savings-report PDF estimating your yearly savings on energy cost, the peak-power fee and solar use. If you decide to switch it on, the same controller simply takes over — nothing to reinstall.

See also load balancing & energy management and EV charger installation FAQ.

Last updated: 27 May 2026