Happy Valley Water Treatment Plant (HVWWBA1) is a 5 MW / 4 MWh grid-scale battery energy storage system in South Australia, tracked live on NEMPulse using AEMO 5-minute dispatch data. This page shows Happy Valley Water Treatment Plant'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).
As of 9 June 2026: estimated gross energy + FCAS market revenue month-to-date $3k; capturing 40.7% of optimal dispatch value.
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Other South Australia batteries: Blyth Battery Energy Storage SystemTorrens Island BESSBungama Battery Energy Storage SystemHornsdale Power ReserveTemplers Battery Energy Storage SystemMannum Battery Energy Storage System
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