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Smart EV home charging: Dynamic load balancing explained [2023 update]
Dynamic load balancing is a smart charging feature that continuously monitors changes in energy usage on your electrical circuit and automatically allocates available capacity to different appliances. It ensures that the energy used is balanced and adjusts the charging output to your electric vehicle (EV) based on fluctuations in electricity demand.
For example, if your washing machine, dryer, and EV are all connected at the same time, dynamic load balancing might slow or pause the EV’s charging process to free up power for the other appliances. Once those devices are turned off, the charger resumes or increases the EV's charging speed.
### How Does Dynamic Load Balancing Work?
This video explains everything you need to know about dynamic load balancing at home.
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As more people switch to electric vehicles, home charging has become increasingly popular. According to our research, over 67% of EV drivers currently charge their cars at home, and it’s easy to see why. Charging while parked is not only more convenient but also cheaper than using public stations.
However, managing the power supply can be challenging. EV charging is a high-energy activity that can strain an electrical circuit if not properly managed. Fortunately, there are smart solutions like dynamic load balancing that help optimize energy use and reduce your electricity bill.
Dynamic load balancing works by constantly monitoring the power consumption on your circuit and intelligently distributing the available capacity among your appliances. This prevents overloads and allows multiple devices to run simultaneously without tripping breakers.
Electric vehicles are highly energy-intensive. A typical home charger can deliver between 7,400 to 22,000 watts, which is significantly more than most household appliances. For instance, a dishwasher uses between 1,050 W and 1,500 W. On average, an EV consumes about 200 Wh per kilometer, which translates to roughly 2.48 kWh per day—equivalent to running your oven for an hour.
Charging your EV regularly adds to your electricity consumption. At an average EU electricity price of 23.69 euro cents per kWh, this could add around €18 to your monthly bill. While these numbers vary depending on driving habits and location, they give a general idea of the impact of EV charging on your home's energy use.
When installing a home charging station, you may wonder if you need to upgrade your power supply. If your current setup can't handle the additional load, upgrading might be necessary. However, dynamic load balancing can help avoid costly upgrades by managing the power draw from your EV, ensuring it never exceeds safe limits.
This feature is especially useful if you have multiple EVs. Dynamic load balancing can distribute the available energy between them or prioritize one based on your preferences. In either case, it ensures efficient and safe energy use.
Not all charging stations come with dynamic load balancing, but it's a valuable feature to consider. Our EVBox Livo home charging solution includes this functionality along with many other smart features.
### Benefits of Dynamic Load Balancing
- **No Overloading**: Ensures your EV never exceeds the safe power limit of your circuit.
- **No Meter Box Adjustments**: You can use your existing power connection without needing to install a new meter.
- **Responsive Charging Speed**: Adjusts charging speed based on real-time energy usage.
- **Charging Flexibility**: Charge your EV anytime, even during peak hours, without worrying about overloads.
- **Electricity Management**: Helps monitor and manage your home’s energy consumption effectively.
If you're interested in learning more about home EV charging, check out our complete guide to discover everything you need to know about setting up and using a home charging station.