Frequently Asked Questions
Specifications
Interfaces for integrators and developers. The REST API is the primary interface; Modbus TCP, EEBus and OCPP are also available on the wallbox.
EEBus: all e-mobility use cases supported; LPC (Limitation of Power Consumption) and MPC (Monitoring of Power Consumption) certified per Germany's §14a EnWG (controllable-load regulation). Modbus TCP: register layout follows the Amperfied specification.
See wiki: Home Assistant integration · HEMS setup
Wiki
In-depth guides, integration examples and best practices from our support team. Click an article to read it.
Short video (approx. 1:30) walking through the initial installation and commissioning of the wallbox.
Enrol new RFID chips, read out their UUID and add them to the local Approved list.
View charging sessions in the web interface and export them as CSV — the basis for per-user billing via the RFID token ID.
Switch between single-phase and three-phase charging — manually or automatically via OCPP, EEBus or Modbus.
Choose a mode for PV surplus charging — from fully off to topping up with grid power when the surplus is not enough.
Choose a wallbox as central energy manager (CEM) and pair further wallboxes with it via EEBus — step by step.
Static and dynamic load management, PV charging, supported energy meters — what the HEMS actually does at runtime.
Enable the Modbus server and control the wallbox from Home Assistant via the "Heidelberg Energy Control" HACS plugin.