South Australian renewable energy systems installer MyEnergy Engineering has been awarded 2025 project of the year for its 200 kW/280 kWh microgrid in the remote town of William Creek on the Oodnadatta Track.
The William Creek off-grid hybrid power system aimed to supply the town’s energy requirements sustainably and efficiently.
System design and components include 200 kW of Trinasolar modules, Pylontech batteries, 135 kVA Victron Energy Quattro inverters, Victron 450/200 Smart Solar chargers for DC coupling, and Fronius International ECO inverters for AC coupling.
MyEnergy Engineering Chief Executive Officer Ciaram Granger told pv magazine the project presented extreme logistical and environmental challenges.
“It’s one of the most remote towns in Australia with no grid access, harsh heat, and heavy dust exposure,” Granger said. “The system had to provide continuous power for the entire township including accommodation, fuel supply, and essential services.”
Granger listed engineering barriers as thermal management inside a sealed containerized system, long DC cable runs across variable terrain, and ensuring generator integration could support irregular load patterns.
“To overcome this, we implemented a Victron-based hybrid microgrid (200 kW PV/280 kWh lithium / 135 kVA inverter capacity) with fully redundant inverter clusters, a custom DC busbar system for high-current distribution, and air-conditioned enclosures maintaining internal ambient below 28 C even when external temps exceed 48 C,” Granger said.
The installation also includes modular wiring for hot-swappable battery racks and scalable expansion.
Custom load-shedding logic, generator control sequencing, and telemetry aggregation are provided by advanced system control using Node-RED layered on top of Victron’s Venus OS.
Integration between Venus OS (Modbus TCP/MQTT) and Fronius PV inverters allows the site to run in multiple operational modes including solar-priority, load-following, or generator-supplement.
Start and stop events based on real-time state of charge, load trends, and temperature are also triggered by automated genset logic developed in Node-RED, optimising runtime and fuel efficiency.
Granger said the project was effectively a blueprint for remote microgrids – designed, fabricated, and commissioned entirely by MyEnergy’s in-house team.
“It’s monitored remotely through VPN-secured data links and has been running autonomously since commissioning with near-zero unplanned outages,” Granger said.
The project was awarded the 2025 Master Electricians Australia State Excellence Awards Project of the Year.
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