4. List of Smart Charging Features

Economic/Price Optimization of Charging

On local level or remotely

• Based on energy tariffs.

• Time scheduling of charging towards lower tariffs or self-consumption when user preferences and pricing allows it.

• Evaluation of on-site production (e.g., photovoltaics).

Operation Optimization

On local level or remotely

• Frequency regulation.

• Machine learning and pattern recognition using built-in AI to predict and optimise each charging session.

• Collection of user's departure time over web interface or touch screen to refine automatically suggested charging profile.

• Support for Modbus protocol for integration with external smart building systems.

Overload Prevention (of Fuse and/or Grid Connection Point)

On local level, with or without using Etrel Load Guard, or with management system, e.g. by using Etrel Ocean:

• Static limit of maximum allowed charging current per phase.

• Static limit of maximum allowed charging current per phase in case connection with Load Guard sensor / back-end is lost.

• Detection and visualisation of available supply and automatic adjustment of charging power.

• Detection and visualisation of surplus energy returned to the grid (Production from renewable energy sources).

Demand Response Activation

With management system, e.g. by using Etrel Ocean

Remote power manipulation by DSO.

Remote power manipulation by energy supplier.

Cluster management

On local level or with management system, e.g. by using Etrel Ocean

• Based on user preferences and current installation's load conditions.

• Master-slave relationship with floating master.

• Connection of up to 18 charging stations possible.

• Load area power management.

• OCPP 1.6 fully supported, OCPP 2.0 in the road map, will be fully supported soon. Other OCPP nonstandard messages are also supported (related with building consumption or cluster consumption).