System architecture

Power path and control logic

A modular reference architecture adaptable to off-grid, weak-grid and hybrid applications.

Reference architecture

Sources → conversion and distribution → loads

EMS and the microgrid controller communicate with sources, interfaces and loads to coordinate operation.

NUSLUME conceptual architecture showing solar PV, grid, genset, BESS and PCS connected through power conversion and distribution to loads, with EMS control and communication.
Blue solid lines: power flow. Green dashed lines: control and communication.Open full size ›

Conceptual system architecture. Final topology, protection, switching, equipment selection and compliance requirements are subject to project-specific engineering assessment.

The EMS coordinates and controls operation. Primary electrical power flows through the power conversion and distribution architecture.

Design principles

Applied project by project

Renewable-first operation

Use available renewable generation to serve loads and charge storage before higher-cost sources, where suitable.

Battery reserve management

Maintain project-defined SOC windows for resilience, generator coordination or planned island operation.

Source coordination

Coordinate PV, BESS, grid and genset using thresholds, schedules, priorities and project constraints.

Critical-load segmentation

Separate essential and flexible loads to preserve critical operation during constrained supply.

Get started

Start with the load

Tell us what needs to be powered, where the site is located and what operating constraints must be considered.