Mithaka Aboriginal Corporation

PROJECT DETAIL

Objectives & Site Considerations

In early 2025, Off-Grid Energy Australia was engaged by Josh Gorringe, Traditional Owner and general manager of Mithaka Aboriginal Community, to design and install a standalone power system for the property in remote Western Queensland, nearby to the iconic Betoota Hotel. The system will support a new accommodation area and central facilities forming part of a work camp.

The project was completed shortly before a milestone moment for the community, with Mithaka Country being awarded a National Heritage Trust listing in December 2025.

During the installation, our team had the privilege of touring several important cultural sites, including ancient quarry and house locations.

The installation location is several hours from the nearest township, requiring the crew to camp on site for the entire project duration. All supplies – fuel, water, food, camping gear, and tools – had to be transported in with the team.

The team was briefed on local wildlife, including the presence of inland taipans, recognised as one of the world’s most venomous snakes. Safety protocols were in place throughout the build.

Unsealed roads, long travel distances, and the need to transport all solar equipment, tools, concrete, and materials into the region added complexity to delivery and installation planning.

Load Analysis

Ave Summer Demand: 116kWh/day ave
Ave Winter Demand: 98.8kWh/day ave
Demand Surge: 31.9kVA

System Design

High temperatures, air-conditioning loads, and seasonal occupancy patterns required a robust design with ample battery storage and inverter capacity.

• Sinexcel Bi-directional PCS (50kW)
• Alpha C&I batteries (113kWh)
• Winaico Solar modules (27kW)
• Sinexcel Charge Controller (50kW)
• EMS Control System incl. monitoring

Project Outcome

The completed off-grid power system is now operational, and whilst it hasn’t been put through its paces yet, it is ready to power the work camp construction once this begins.

Accommodation buildings, kitchen/dining facilities, and common areas will be powered by solar, reducing generator usage and delivering quiet, clean energy for guests and workers.

This installation demonstrates what is possible when thoughtful system design is paired with careful logistical planning – delivering energy resilience in one of Australia’s most remote and historically rich landscapes.