Hybrid Cloud + Local EMS (OCPP)
An EMS architecture where advanced optimization runs in the cloud while a local controller/EMS provides fast protection and offline fallback at the site.
Technical Details
OCPP 2.1 describes hybrid topologies where a cloud EMS can use advanced algorithms and external inputs (e.g., weather, DSO signals, cross-site optimization), but a local EMS protects the local grid connection (fuse) and continues site control when connectivity is lost. Either the cloud EMS or local EMS can perform the local-controller role depending on design trade-offs.
Fleet Applications
Balances cost and resilience: cloud optimization improves energy cost and flexibility, while local fallback prevents depot outages and protects infrastructure during connectivity issues.
Related Terms
Smart Charging
Intelligent management of EV charging sessions to optimize energy consumption based on grid constraints, energy prices, and vehicle schedule requirements.
OCPP 2.1
OCPP 2.1 is a newer OCPP release that extends the protocol ecosystem with clearer architecture guidance and energy-management integration patterns for smart charging deployments.
Local Controller (OCPP)
An on-site component that can sit between charging stations and a CSMS to perform local scheduling and load balancing, often used when integrating an EMS at a site.
Dynamic Load Management (DLM)
Real-time adjustment of charging power based on available site capacity and operational constraints.
Smart Grid
A modernized electricity grid that uses digital control and two-way communication to balance supply and demand.