Gannawarra Energy Storage System (GANNB1) is a 30 MW / 50 MWh grid-scale battery energy storage system in Victoria, tracked live on NEMPulse using AEMO 5-minute dispatch data. This page shows Gannawarra Energy Storage System's energy arbitrage and FCAS revenue, state of charge, dispatch profile, bidding behaviour, and actual-vs-optimal performance in the Australian National Electricity Market (NEM).
With 50 MWh of storage across 30 MW of power, Gannawarra Energy Storage System is a 1.7-hour medium-duration battery — the 13th-largest of 17 grid-scale batteries in Victoria by registered power. Duration sets how long it can sustain full output, and with it how much of the daily price spread it can arbitrage before running flat.
As of 10 Sept 2026: estimated gross energy + FCAS market revenue month-to-date $16k; capturing 56.3% of optimal dispatch value.
Price and dispatch are measured AEMO values; energy and FCAS revenue are derived from them; FPP revenue and integrated state of charge are estimated. See the provenance scheme on the methodology page.
Explore: Battery fleetActual vs optimalPerformance rankingsMarket economicsMarket eventsBid stackBidding strategyVirtual power plantsProject simulatorAskPulseEmail alerts
Other Victoria batteries: Mortlake Battery Energy Storage SystemVictorian Big BatteryPine Lodge BESSMornington BESSRangebank BESSMelbourne Renewable Energy Hub Connection A1
Loading live data…