| Company | Mytilineos |
| Location | Gympie, Queensland |
| Timeline | 2025 |
| Project Overview |
The Munna Creek Solar Farm is a large‑scale renewable energy project located in the Fraser Coast region of Queensland, around 19 km from Woolooga and 40 km north‑west of Gympie. With a generation capacity of 120 MWAC and an annual output of around 300,000 MWh, the project supplies clean energy to approximately 41,100 homes and is supported by Insulect‑supplied high‑voltage switching and protection equipment to enable reliable grid connection. |
| Products |
145 kV Disconnector |
The Munna Creek Solar Farm is a large‑scale renewable energy project located in Queensland’s Fraser Coast region, around 19 kilometres from Woolooga and 40 kilometres north‑west of Gympie. With a generation capacity of 120 MWAC and an expected annual output of approximately 300,000 MWh, the project supplies clean electricity to around 41,100 Australian homes. As part of this major grid‑connected solar development, Insulect supplied key high‑voltage switching and protection equipment to support safe, reliable operation.
Connecting a solar farm of this scale to the electricity network requires dependable high‑voltage infrastructure capable of handling large power flows while meeting strict safety and grid compliance requirements. The Munna Creek project needed reliable switching equipment across multiple voltage levels, along with controlled circuit‑breaking capability to protect assets and minimise electrical stress. Given the size of the project and its long‑term operating expectations, reliability and performance were critical to avoiding outages, delays, or increased maintenance costs.
Insulect delivered a tailored high‑voltage solution to support the project’s grid connection and internal electrical network. This included a 145 kV disconnector for transmission‑level isolation, 72.5 kV disconnectors for substation switching, and a 72.5 kV dead tank circuit breaker with point‑on‑wave control to manage switching operations more precisely. By supplying equipment designed to work together seamlessly, Insulect helped ensure the electrical system could operate safely and efficiently from commissioning through long‑term operation.
The supplied equipment enables secure isolation, controlled switching, and reduced electrical stress on critical assets. Point‑on‑wave control helps minimise transients during switching events, supporting longer equipment life and improved system stability. Using proven, high‑quality components across voltage levels reduced operational risk and simplified integration, giving the project team confidence in the robustness of the solar farm’s electrical infrastructure.
With Insulect’s high‑voltage switching and protection equipment in place, the Munna Creek Solar Farm is positioned to deliver reliable, large‑scale renewable energy to the Queensland grid. The project contributes significantly to regional clean energy generation while supporting long‑term operational performance. This case study highlights Insulect’s capability to support utility‑scale solar developments with dependable infrastructure solutions that enable safe, efficient operation at scale.