Information
Definition
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.
Why it matters
It matters because UK sites often have constrained supplies and may need to add EV charging without immediately upgrading the incoming connection. ALM helps protect the installation, reduce peak demand risk and keep multiple chargers operating within the agreed site capacity.
References
Standards and regulations
ENA EREC G100
ENA EREC G100 is the UK Engineering Recommendation for customer export and import limitation schemes used to control power flow at a grid connection point. In EV charging it is relevant to load management, constrained connections, V2G export control and maximum import limitation.
BS 7671
BS 7671 is the UK national standard for electrical installations, covering the design, erection, inspection, testing and verification of low-voltage electrical systems. Section 722 contains specific requirements for supplies to electric vehicles.