Wambo Wind Farm

Wambo Wind Farm is one of Queensland’s largest renewable energy developments, located near Jandowae in the Western Downs region. With a total capacity of 506 MW delivered across two stages, the project includes 83 Vestas wind turbines and is expected to generate enough clean electricity to power approximately 312,000 homes once fully completed in 2026. Developed by Cubico Sustainable Investments and Stanwell, the project required robust and reliable grid connection infrastructure to support large‑scale wind generation. Insulect was engaged to supply key medium‑ and high‑voltage equipment across both stages of the project.

Challenge

A wind farm of this scale introduces significant complexity at the grid connection point, with large power flows, variable generation, and strict grid compliance requirements. The project needed reliable switching, protection, insulation, and measurement solutions across multiple voltage levels to ensure safe operation and long‑term performance. With construction delivered in stages and tight commissioning schedules, it was critical that all equipment integrated seamlessly and performed consistently from initial energisation through to full output.

Solution

Insulect supplied a coordinated package of electrical infrastructure to support both Stage 1 and Stage 2 of the Wambo Wind Farm. This included 33 kV disconnectors and post insulators for the internal collection network, along with 275 kV disconnectors and post insulators at the transmission level. To support controlled switching and protect critical assets, Insulect also supplied a 275 kV dead tank circuit breaker with point‑on‑wave control. Voltage measurement and power quality monitoring were enabled through 275 kV capacitive voltage transformers fitted with power quality sensors, providing clear visibility of grid performance.

Benefits

The integrated solution provided safe and dependable switching, strong mechanical and electrical insulation, and accurate measurement across the wind farm’s electrical network. Point‑on‑wave control helped reduce electrical stress during switching operations, supporting longer equipment life and improved system stability. By supplying compatible equipment across voltage levels and project stages, Insulect helped simplify installation, reduce interface risk, and support a smooth construction and commissioning process.

Results

With Insulect’s equipment in place across both stages, Wambo Wind Farm is well positioned to deliver large‑scale renewable energy reliably to the Queensland grid. The project supports energy security, emissions reduction, and long‑term renewable integration at a state‑wide scale. This case study highlights Insulect’s ability to support complex, multi‑stage wind projects with dependable infrastructure solutions that enable safe operation and performance at scale.