Automatic Load Management

An overview on Automatic Load Management (ALM) and how it works.

ALM is used to dynamically adjust the maximum power draw, when charging your EV, without overloading your property.

We use bidirectional current transformers (CTs) at your property’s main power feed to enable features like ALM and solar integration. By monitoring the direction and flow of current, we adjust charging to match your home’s energy usage and solar production, optimising efficiency and safety.

All UK homes have maximum power rating. Your Hypervolt can be set to match your homes maximum fuse rating, adjusted directly inside the device. It monitors the power supply in real-time and, if the load nears the property’s limit, automatically reduces the EV’s energy draw to as low as 1.4kW. This prevents your electrical system from overloading, avoids tripping the fuse, and ensures uninterrupted charging.

If the ALM is triggered regularly this could be a sign that the electrical service to the property is inadequate for requirements.

CT Placement

CT1 must be installed on the incoming live tail to measure the total power supply load accurately. It's important that the arrow on the CT clamp points in the direction of the normal current flow to ensure that the CT is reading energy in the correct direction. For more information, please see CT Setup and Configuration.

CT1 is mandatory under current UK electrical wiring regulations, as it is required for Automatic Load Management. If the CT1 clamp is not installed, or is installed incorrectly, it may affect the performance of the charger and could invalidate your warranty.

FAQs

Q: Will my charger work with solar panels if I don’t have a CT clamp?    

CT1 is essential for solar charging; without it, your Hypervolt can’t detect surplus solar energy. If your CT clamp wasn’t installed and you wish to use solar charging, please notify Hypervolt and the installer as soon as possible.

Q: Do I need two CT clamps?    

No, a CT2 is only supported by the Hypervolt Home 3.0 or later generations, and only required if you have an AC-coupled ESS.