Smart Microgrid Solution (On-Grid / Off-Grid)

Grid-tied, islanded or hybrid microgrids built around the HMQ-EMS-300 controller: seamless on/off-grid transfer, anti-backflow, demand control and multi-source coordination for parks, hospitals, data centres and remote sites.

Overview

A SENOT microgrid unifies PV, wind, diesel, battery storage, EV charging and loads into a single, coordinated energy system. Two deployment modes are supported:

On/Off-Grid (Hybrid) Microgrid — for sites with a utility connection but exposure to outages, high tariffs or demand charges. Bidirectional PCS, grid-transfer switch and pre-synchronisation module keep the grid interface intact: in grid-tied mode the EMS handles self-consumption, anti-backflow and demand limiting; on grid failure the system islands within milliseconds and keeps critical loads powered.

Pure Off-Grid Microgrid — a closed source-storage-load-backup loop with no utility interface, typically AC-coupled, for islands, mountain sites, oil & gas outposts, mining camps and remote farms that need long-term autonomous supply in harsh conditions.

At the core sits the HMQ-EMS-300 series controller — millisecond acquisition, hardware anti-backflow, AI-based generation/load forecasting — with optional coordination controllers (HMQ-SMCCU-1000) and station-level energy cabinets for larger sites.

Key Advantages

Seamless transfer

Grid → island switchover in milliseconds; critical loads never see the outage

Multi-source coordination

PV, wind, diesel, battery, chargers and controllable loads dispatched by one controller

Anti-backflow & demand control

Millisecond metering at the point of connection; no export penalties, no transformer overload

AI forecasting

Generation and load prediction drive charge/discharge scheduling and tariff optimisation

Open protocols

Modbus, IEC 104, IEC 61850, CAN, MQTT — integrates with any inverter, PCS or BMS

Scalable architecture

From a single 261 kWh cabinet to MW-class stations with EMS master/backup redundancy

Applications

Industrial parksHospitalsData centresOffice buildingsEV charging hubsIslands & remote sites

Reference Projects

Zhengzhou industrial park — 3.2 MWp rooftop PV + 2.35 MWh storage + 160/400 kW DC fast chargers; demand-priority dispatch keeps the site under its contracted maximum demand.
Off-grid campus microgrid — 200 kWp PV + 2 × 261 kWh storage + 28 chargers running islanded; EMS limits fast-charger power and groups slow chargers to protect the PCS.
Heavy-truck ultra-fast charging station — 2 MW grid + 3.5 MW storage feeding a 5.5 MW charging system with 20 guns and ~40 MWh/day throughput.