How much power does a property need for charging? We will help you calculate correctly and avoid expensive mistakes

Guessing the power demand for electric car charging in real estate is costly. The correct calculation is based on the number of charging points, usage and growth plans.

Basic power requirements per charging point

As a rule of thumb requires a charging location between 3.7 to 22 kW power depending on
Usage time:

• Night charge (10-12h): 3.7-7.4 kW is enough for everyday use
• Workplace parking (4-8h): 11 kW for faster charging
• Shorter stop: 22 kW for maximum flexibility

Property Restrictions Govern

The property main fuse determines the maximum available power. A typical multi-family property often has 63A main fuse, which corresponds to approximately 43 kW of theoretical maximum power for the entire property's energy use. Without smart control, only 3—4 11kW charging points would be able to run at full power at the same time.

ChargeNode makes the difference

With traditional calculation of power consumption, 10 charging points × 11 kW would mean 110 kW and require a significantly more powerful electricity subscription. ChargeNodes dynamic load balancing with charge optimisation, the same property can often cope with standard 63A main fuse.

What is the secret?

Well, thanks to ChargeNode's departure-based charging, charging spreads over time based on when the cars are actually going to be used, not when they're plugged in.

Three steps to proper sizing

1. Map current consumption over 12 months
2. Analyze charging patterns — when and how long do cars stand?
3. Plan for growth with smart technology that grows with the need
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By choosing the right technology from the start, you can save thousands of dollars in unnecessary electricity upgrades.