How New South Wales's grid-scale batteries performed in August 2026: energy and FCAS market revenue, $/MW, $/MWh, top performers, and price events.
New South Wales (NSW1) batteries earned $69k in estimated gross energy and FCAS market revenue so far in August 2026, from 13 grid-scale units tracked by NEMPulse. Figures cover August 2026 to date (through 2 Aug 2026).
Normalised across 2,309 MW and 6,974 MWh of registered capacity, the region earned $30/MW and $10/MWh for the period.
Total revenue was up 976% on the same days of July 2026, which returned $6k. Per MW per day — which strips out both fleet growth and the length of the window — earnings were up 619% at $15/MW/day. Optimal capture improved 9 points, from -3% to 6%.
Energy arbitrage supplied 96% of the total and FCAS 2%, with estimated Frequency Performance Payments adding $1k. Within FCAS, regulation accounted for 73% and contingency 27%; the single largest market was raise regulation at $898.
For context on the trading conditions, the average daily price spread (top two hours minus bottom two hours) in New South Wales was $41/MWh, down 17% on the previous period, and the highest spot price reached $114/MWh.
Against the perfect-foresight energy benchmark, New South Wales batteries captured 6% of what hindsight would have earned, an estimated $759k of unrealised upside.
On capture of the perfect-foresight energy benchmark, the strongest performers were Limondale Battery (65%), Riverena Energy Storage System 2 (61%), Riverina Energy Storage System 1 (48%). At the other end: Smithfield Battery Energy Storage System, Units 1 - 36 (8%), Capital Battery (-23%), Liddell Battery Energy Storage System (-136%) — capture reflects strategy, contracting and constraints as much as skill, so a low figure is not automatically underperformance.
The strongest single day was 2 Aug 2026 at $228k, and the best single battery-day was Eraring Battery Energy Storage System on 2 Aug 2026 with $93k.
Orana BESS led the region with $73k. Full dispatch, state-of-charge and bidding detail is available on each battery's page.
| Battery | Energy + FCAS | $/MW | $/MWh | Capture |
|---|---|---|---|---|
| Orana BESS | $73k | $175/MW | $44/MWh | 41% |
| Eraring Battery Energy Storage System | $61k | $132/MW | $30/MWh | 35% |
| Waratah Super Battery | $50k | $59/MW | $30/MWh | 24% |
| Limondale Battery | $33k | $652/MW | $61/MWh | 65% |
| Riverena Energy Storage System 2 | $10k | $150/MW | $75/MWh | 61% |
| Riverina Energy Storage System 1 | $8k | $132/MW | $66/MWh | 48% |
| Wallgrove BESS 1 | $4k | $88/MW | $56/MWh | 40% |
| Darlington Point Energy Storage System | $4k | $149/MW | $74/MWh | — |
| Broken Hill Battery Energy Storage System | $3k | $60/MW | $60/MWh | — |
| Quorn Park Solar Hybrid | $3k | $143/MW | $68/MWh | — |
| New England BESS | $3k | $27/MW | $11/MWh | — |
| Smithfield Battery Energy Storage System, Units 1 - 36 | $2k | $33/MW | $16/MWh | 8% |
Capture = actual energy revenue as a share of the perfect-foresight LP benchmark; shown only for units with material modelled upside.
Keep reading: Previous period: July 2026NEM-wide wrap — August 2026New South Wales battery fleetActual vs optimal dispatchMarket eventsHow capture is calculated
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Automatically generated from AEMO public data using fixed templates (not AI-written). Figures are estimated gross market revenue (energy + FCAS) from dispatch — they exclude contracts, hedges and network-support schemes (e.g. SIPS), so actual commercial revenue will differ.
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