January 13, 2026

This is how dynamic load balancing works — and that's why you need it

Dynamic load balancing allows more EVs to charge at the same time without expensive fuses or power peaks. With smart steering and outgo-based charging, properties save money, avoid high power tariffs and get a future-proof solution.

Stina Månsson, Content Manager

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This is how dynamic load balancing works — and that's why you need it

Installing charging boxes is about more than just screwing up hardware to the wall. For property owners and condominium associations, the big challenge is to manage electricity capacity smartly. Dynamic load balancing is the technology that allows you to scale up the number of charging locations without having to make expensive fuses or risk power outages.

Why Dynamic Load Balancing Is Crucial 2025—2027

The electrification of the vehicle fleet is running at a record pace, but real estate electrical systems are rarely sized to charge dozens of cars while keeping elevators, ventilation and household appliances running at full capacity. Without intelligent control, the main fuse fails when the load becomes too high.

Dynamic load balancing acts as the brain of the charging system. By monitoring the property's total electricity consumption in real time, the technology ensures that the available power is optimally distributed to the electric cars. This means that you can install more charging points on existing fuse and guarantee 99% uptime without interruptions in operation. At a time when reliability and cost control are more important than ever, this is no longer an option but a necessity for a scalable infrastructure.

Regulatory framework: Power tariffs and new requirements from grid owners

The financial incentive for smart charging is drastically tightened in the coming years. Last day January 1, 2027 all grid owners in Sweden must have implemented a power-based pricing model, known as power tariffs.

This represents a fundamental change in the way electricity prices are calculated:

  • Previously, it paid mainly for the amount of energy (kWh).
  • Going forward, much of the cost will be based on your power peaks (kW), that is, how much electricity you use at the same time.

Charging many cars at the same time during “peak hours” (often mornings and evenings) will be very costly. Avoiding shock-high network charges requires a system that actively hijacks the peaks and spreads the charge out over the clock.

Static vs. Dynamic Load Balancing — A Comparison

To understand the value of a smart solution, it is important to distinguish the two main types of load balancing that are on the market today.

Static load balancing: Simple but limited

In static load balancing, the charging system is allocated a fixed, predetermined amount of current. You set a “ceiling” that the charging boxes must never exceed. This is a simple solution but often ineffective. Because the roof must be set with a margin of safety to handle the property's other consumption (such as stoves and washing machines), the full capacity actually available in the grid is rarely utilized. The result will be unnecessarily slow charging.

Dynamic Load Balancing: Intelligent and Cost-Effective

Dynamic load balancing is an active process. The system continuously reads the property's electricity meter. When other consumption in the house is low (for example at night), electric cars are allowed to charge at maximum power. As the consumption of the property increases, the power to the cars is automatically drawn down.

The advantages are clear:

  • Maximum utilization of existing main fuse.
  • No risk of overload.
  • Ability to install more charging points without digging up the street for more power.

Departure based charging: The smart complement

Many traditional systems are based on a “first come, first served” principle. When commuters get home at 5pm, all the chargers start at the same time, creating a huge power peak just when the electricity grid is at its most expensive and burdened.

ChargeNode uses instead Departure based charging. By letting the user specify when to pick up the car, the system can plan the charging smarter. Cars that will be parked all night do not need to be fully charged immediately upon arrival. The system can wait and charge these vehicles later at night when the price of electricity is lower and capacity higher. This smooths the curve and radically lowers power costs.

Practical example: BRF with 25 charging slots

The difference between static and dynamis charge becomes clear when you look at the numbers of an average condominium association. Let's assume a BRF that will install 25 charging slots.

  • Without steering: To cope with simultaneous power requirements on arrival charging, a main fuse is often required on 125A.
  • With ChargeNode: Dynamic load balancing and outgo-based control are usually sufficient 63A.

By sticking to a lower fuse level and avoiding power peaks, the compound can save between 30 000 and 60 000 SEK per year in fixed charges and power tariffs. This makes the investment in smart technology pay for itself over time.

Implementation in ChargeNodes platform

For administrators and property owners, ChargeNode offers full control and transparency through a digital platform. Here complex data is transformed into simple decisions:

  1. Power Schemes: Set automatic restrictions during the most expensive hours of the day.
  2. Priority: Prioritize specific outlets if necessary, for example for pool cars or service vehicles.
  3. Pricing models: Choose between fixed price, floating spot price or scheduled charging for users.
  4. Monitoring: Follow the power output in real time via a dashboard to fine-tune and optimize operation.

Future-proof charging infrastructure

Investing in charging poles is a long-term deal. In view of upcoming regulatory requirements and rising power costs, dynamic load balancing is not just a technical feature — it is an economic insurance policy. By choosing a system that combines dynamic load balancing with outbound control, you ensure a sustainable, cost-effective and scalable solution that works just as well in 2030 as it does today.

FAQ

What is Dynamic Load Balancing?
Dynamic load balancing is a system that monitors electricity usage in real time and automatically distributes available power to electric car chargers. It prevents congestion by reducing charging power as household consumption increases, allowing more charging points to be had on existing electricity infrastructure.

Why is dynamic load balancing necessary by 2027?
Sweden's electricity grid owners must introduce power-based pricing by 1 January 2027, where charging is based on power peaks rather than total energy. This makes simultaneous charging extremely expensive, requiring smart systems that spread the load across the clock and avoid peak load times.

What is the difference between static and dynamic load balancing?
Static load balancing sets a fixed power limit for chargers, often resulting in available capacity not being fully utilized due to safety margins. Dynamic load balancing continuously adjusts power based on the household's real-time consumption, maximizing efficiency and allowing faster charging whenever possible.

How much can a condominium association save with smart charging?
A condominium association with 25 charging points can reduce the need for a main fuse from 125A to 63A with dynamic load balancing, saving SEK 30,000-60,000 per year in fixed charges and power tariffs. The investment pays for itself over time.

What is Departure Based Charging?
Departure based charging lets the user indicate when the car is needed, allowing the system to schedule the charge during cheaper off-peak hours instead of directly on arrival. This smooths out the load curve and significantly reduces power peaks.

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