Mortlake Battery Energy Storage System (MLB01) is a 440 MW / 650 MWh grid-scale battery energy storage system in Victoria, tracked live on NEMPulse using AEMO 5-minute dispatch data. This page shows Mortlake Battery 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 650 MWh of storage across 440 MW of power, Mortlake Battery Energy Storage System is a 1.5-hour short-duration battery — the largest of 17 grid-scale batteries in Victoria by registered power, and one of the five largest in the NEM. 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 $317k; capturing 64.7% 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.
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Other Victoria batteries: Victorian Big BatteryPine Lodge BESSMornington BESSRangebank BESSMelbourne Renewable Energy Hub Connection A1Melbourne Renewable Energy Hub Connection A2
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