Overview
Powerlink is undertaking critical upgrades at the Belmont Substation, including works on two 11kV underground cables, two station service transformers and two auxiliary transformers. This substation plays a critical role in servicing the electricity requirements of the Brisbane CBD, south-eastern suburbs and Port of Brisbane.
Status
As part of the upgrades, Powerlink is installing new busbars and related equipment to interface with the adjacent Energex substation. Commissioning of this infrastructure was completed in December 2025 with completion of the final busbar expected by mid-2026.
The two 11kV cables and station service transformers had reached the end of their technical service life and were replaced in 2023. The two auxiliary transformers were more than 40 years old and not compatible with modern cable termination technology. One transformer was replaced and commissioned in 2023, with the second now completed and commissioned in December 2025.