SiRay Energy successfully delivered a complete PV + BESS + Diesel smart microgrid system for a large electronics manufacturing facility in Southeast Asia. The project addresses critical power reliability challenges in a weak-grid region while significantly reducing diesel fuel consumption through intelligent energy dispatch.
Project Background
Located in an industrial zone with unstable grid infrastructure, the electronics factory operates 24/7 production lines that demand uninterrupted power supply. Before the microgrid installation, the facility relied heavily on diesel generators, facing high fuel costs, noise pollution, and frequent maintenance downtime.
The client required a turnkey solution that integrates renewable energy, energy storage, and backup generation with seamless automatic switching and remote monitoring capabilities.
System Configuration
Rooftop PV
Large-scale rooftop solar array provides daytime clean energy, reducing grid import and diesel runtime.
Containerized BESS
20-foot containerized battery energy storage system housed in a climate-controlled enclosure for safety and longevity.
Diesel Backup
Two high-efficiency diesel generator sets serve as reliable backup power for extended cloudy periods and peak loads.
Power Distribution & Integration
The microgrid interfaces with the factory's existing load switchgear through a dedicated AC coupling point. All power sources – PV, battery, and diesel – are synchronized and dispatched according to real-time load demand and economic optimization algorithms.
Intelligent EMS Control
At the heart of the system is SiRay's vEMS 2.0 energy management platform, providing 24/7 SCADA visualization, AI-driven power forecasting, and automated dispatch strategies. The EMS ensures PV-priority operation, battery arbitrage optimization, and seamless black-start capability.
SiRay Energy engineers complete solar-storage-diesel microgrids. See how the system is designed: PV + BESS + Diesel microgrid