Mornington BESS (MRNBESS1) is a 336 MW / 590 MWh grid-scale battery energy storage system in Victoria, tracked live on NEMPulse using AEMO 5-minute dispatch data. This page shows Mornington BESS'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 590 MWh of storage across 336 MW of power, Mornington BESS is a 1.8-hour medium-duration battery — the 4th-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 $-24k; capturing -32.3% 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 BESSRangebank BESSMelbourne Renewable Energy Hub Connection A1Melbourne Renewable Energy Hub Connection A2
Loading live data…