EV Charging Terminology

Active Load Management (ALM) is a load control approach that monitors available electrical capacity and actively adjusts EV charging demand in response to changing site conditions. It may use live measurements, control rules or backend commands to reduce, increase or redistribute charger output.

Bidirectional charging allows energy to flow both into and out of an EV battery through compatible charging equipment. It is normally assessed alongside vehicle compatibility, export permissions, grid connection requirements and the supported communication standards.

Configurable current allows the maximum charging current to be set or limited during installation or configuration. It is normally assessed against site capacity, maximum demand, charger grouping and the behaviour expected when electrical demand changes.

Dynamic load management adjusts charger output in real time based on measured site demand or available capacity. It is normally assessed against site capacity, maximum demand, charger grouping and the behaviour expected when electrical demand changes.

ENA Connect Direct V2G relates to ENA connection data for vehicle-to-grid capable equipment.

ENA Connect Direct V2G Stack refers to the broader approved or declared combination of V2G charger, inverter or control system and associated equipment used for connection assessment.

EV charging infrastructure designed for multiple business vehicles, vans, taxis, buses or operational fleets. It is normally used to match charger features to the intended environment, utilisation pattern and user group.

Load balancing distributes available electrical capacity between chargers, circuits or site loads to avoid exceeding supply limits. It is normally assessed against site capacity, maximum demand, charger grouping and the behaviour expected when electrical demand changes.

Load curtailment reduces or temporarily limits charging demand to keep a site within an agreed electrical capacity or operating limit. It is normally assessed against site capacity, maximum demand, charger grouping and the behaviour expected when electrical demand changes.

Load management controls EV charging demand in response to available electrical capacity, site load, user priority or grid constraints. It is normally assessed against site capacity, maximum demand, charger grouping and the behaviour expected when electrical demand changes.

Power supply refers to the electrical supply arrangement feeding a charger or group of chargers. It is normally assessed alongside phase availability, circuit capacity, protective devices, cable sizing and DNO/site constraints.

Vehicle-to-Building allows an EV to supply energy to a building or site load through compatible bidirectional charging equipment. It is normally assessed alongside vehicle compatibility, export permissions, grid connection requirements and the supported communication standards.

Vehicle-to-Everything (V2X) is an umbrella term for bidirectional EV charging use cases where energy can flow from the vehicle to another load, building, home, grid or wider energy system. It includes V2G, V2H, V2B and V2L depending on the destination of the exported energy.

Vehicle-to-Grid allows an EV to export energy back to the electricity grid or support grid services through compatible charging equipment. It is normally assessed alongside DNO requirements, import/export limits, generation, storage and wider site energy management.

Vehicle-to-Home allows an EV to supply energy to a home through compatible bidirectional charging equipment and electrical controls. It is normally assessed alongside vehicle compatibility, export permissions, grid connection requirements and the supported communication standards.