EV Charging Terminology

Derating is the reduction of charger output or performance under certain conditions, such as high temperature, supply limits or component protection. It is normally assessed alongside phase availability, circuit capacity, protective devices, cable sizing and DNO/site constraints.

Diagnostics are the tools, messages, logs or checks used to identify charger faults, performance issues or communication problems. It is normally considered alongside charge point management systems, OCPP support, firmware updates, reporting and remote diagnostics.