Checklist for the sustainable charging station/wall box

For operators, intelligent distribution of the available energy and maintaining a stable power supply grid are becoming increasingly important challenges that need to be addressed. Dynamic load management (DLM) allows for an intelligent distribution of the available energy and thereby guarantees a stable power grid.

Sustainable charging structural units support a load management system capable of controlling up to 250 charging points within a local eDLM system. To do this, the total amount of available energy is distributed dynamically and effectively with the aid of different profiles so as not to overload a shared feeder line. The eDLM software, which is continuously developed further, is interoperable with other charging points from all manufacturers who also use eDLM software. This enables operators to easily expand their charging park independently of the manufacturer.

It must be possible to install future versions of the OCPP protocol, additional backend providers, new DLM functions and general feature enhancements by means of software updates at a later stage. Continuous adaptation to upgraded standards is only possible by means of firmware updates. Contact the manufacturer to find out how updates are offered and how often. Free software updates (typically on a quarterly basis) guarantee that the charging systems are up to date and thus help to reflect dynamic developments in the market. Remote service for fault identification is possible, as is on-site management. Here, updates and configurations can also be uploaded and duplicated via a service USB stick.

At least two charging points can be connected to a backend as a charging station with two connectors by means of master/slave communication.

Calibration law-compliant billing is legally required not only for the public sphere, but also for charging company vehicles at private domestic connections with subsequent reimbursement by the employer.

Put simply, calibration law demands that all the components involved in the recording and processing of measured values to obtain the invoice amount must be reliable or, at a minimum, that it be possible to check the invoice exclusively on the basis of reliable components.

It is not technically possible or reasonable to fulfil this requirement for all the meter and controller components in the charging station via the various backends through to the invoicing stage.