Western Downs Battery Energy Storage System (BESS) (WDBESS2) is a 270 MW / 510 MWh grid-scale battery energy storage system in Queensland, tracked live on NEMPulse using AEMO 5-minute dispatch data. This page shows Western Downs Battery Energy Storage System (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 510 MWh of storage across 270 MW of power, Western Downs Battery Energy Storage System (BESS) is a 1.9-hour medium-duration battery — the 8th-largest of 17 grid-scale batteries in Queensland 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 6 July 2026: estimated gross energy + FCAS market revenue month-to-date $163k; capturing 69.6% 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 Queensland batteries: Tarong BESSSupernode BESSSupernode BESSSwanbank BESSStanwell Battery Energy Storage SystemWoolooga BESS
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