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A photo of a turbine at Swanbank Power Station

POWER STATION OUTAGES

Unplanned outages

At CleanCo, safety is our priority. While we work hard to ensure the reliability of our assets, unplanned outages can occur from time to time. In these moments, our immediate focus is on returning to a safe and stable operating state—protecting people, the environment, and our assets every step of the way.

Unit
StatusDate of outageExpected RTSCause of outageImpact
Wivenhoe Pumped HydroAvailable
Swanbank EUnavailable6 September 20256 October 2025Planned outageGeneration unavailable
Kareeya HydroAvailable
Barron Gorge HydroUnavailable25 September 20252 October 2025Planned outageGeneration unavailable
Updated: 25 September 2025

Planned Outages

Routine maintenance activities are required to enable the ongoing safety and reliability of our assets. These maintenance activities, which require the generators to be taken out of service, are planned in advance and in consultation with the Australian Energy Market Operator (AEMO).

Outages typically involve one generation turbine coming offline at a time, full outages where all turbines are offline are scheduled on a 4-5 year cycle.

AssetStart DateEnd Date
Kareeya Hydro U2 & U414 October 202517 October 2025
Wivenhoe Pumped Hydro U120 October 202524 October 2025
Barron Gorge Hydro U221 October 20256 November 2025
Wivenhoe Pumped Hydro U227 October 202531 October 2025
Kareeya Hydro U328 October 20257 November 2025
Wivenhoe Pumped Hydro U1 & U26 November 20256 November 2025
Barron Gorge Hydro U118 November 202516 December 2025
Barron Gorge Hydro U22 December 20252 December 2025
Barron Gorge Hydro U28 December 20258 December 2025
Wivenhoe Pumped Hydro U1 & U25 February 20265 February 2026
Swanbank E1 March 20268 March 2026
Barron Gorge Hydro U13 March 20264 March 2026
Barron Gorge Hydro U24 March 20264 March 2026
Barron Gorge Hydro U1 & U29 March 20269 March 2026
Barron Gorge Hydro U1 & U217 March 202617 March 2026
Kareeya Hydro U1-416 April 202617 April 2026
Wivenhoe Pumped Hydro U15 May 202613 August 2026
Last updated on 24 September 2025

Far North Hydros

Natural river flows remain unaffected by outages.

Water releases to enable generation will be reduced during outages dependent on the number of turbines that are offline. For example, at Kareeya during a partial outage when one turbine is offline, the power station can generate max 66MW, releasing 66ML down the river.