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 $9.45M in estimated gross energy and FCAS market revenue in August 2026, from 16 grid-scale units tracked by NEMPulse. Figures cover the full period.
Normalised across 3,149 MW and 9,650 MWh of registered capacity, the region earned $3,001/MW and $979/MWh for the period.
Total revenue was up 24% on July 2026, which returned $7.61M. Per MW per day — which strips out both fleet growth and the length of the window — earnings were down 5% at $97/MW/day. Optimal capture improved 4 points, from 48% to 52%.
Energy arbitrage supplied 99% of the total and FCAS 0%, with estimated Frequency Performance Payments contributing the remaining 1% ($41k). Within FCAS, regulation accounted for 78% and contingency 22%; the single largest market was raise regulation at $15k.
For context on the trading conditions, the average daily price spread (top two hours minus bottom two hours) in New South Wales was $102/MWh, up 8% on the previous period, and the highest spot price reached $312/MWh.
Against the perfect-foresight energy benchmark, New South Wales batteries captured 52% of what hindsight would have earned, an estimated $8.47M of unrealised upside.
On capture of the perfect-foresight energy benchmark, the strongest performers were Limondale Battery (81%), Quorn Park Solar Hybrid (69%), New England BESS (68%). At the other end: Waratah Super Battery (38%), Liddell Battery Energy Storage System (8%), Williamsdale BESS (7%) — capture reflects strategy, contracting and constraints as much as skill, so a low figure is not automatically underperformance.
The strongest single day was 5 Aug 2026 at $902k, and the best single battery-day was Orana BESS on 5 Aug 2026 with $272k. Revenue stays concentrated: five of the period's 31 days delivered 36% of everything New South Wales batteries earned.
One battery earned its first market revenue in the period — Eraring Battery Energy Storage System 2 — adding 240 MW of earning capacity.
Eraring Battery Energy Storage System led the region with $3.03M. Full dispatch, state-of-charge and bidding detail is available on each battery's page.
| Battery | Energy + FCAS | $/MW | $/MWh | Capture |
|---|---|---|---|---|
| Eraring Battery Energy Storage System | $3.03M | $6,585/MW | $1,517/MWh | 66% |
| Orana BESS | $2.36M | $5,698/MW | $1,424/MWh | 65% |
| Waratah Super Battery | $1.59M | $1,868/MW | $946/MWh | 38% |
| Limondale Battery | $837k | $17k/MW | $1,561/MWh | 81% |
| Capital Battery | $272k | $2,724/MW | $1,362/MWh | 43% |
| New England BESS | $263k | $2,633/MW | $1,045/MWh | 68% |
| Smithfield Battery Energy Storage System, Units 1 - 36 | $210k | $3,227/MW | $1,614/MWh | 54% |
| Riverena Energy Storage System 2 | $199k | $3,062/MW | $1,531/MWh | 64% |
| Liddell Battery Energy Storage System | $162k | $324/MW | $149/MWh | 8% |
| Riverina Energy Storage System 1 | $160k | $2,673/MW | $1,336/MWh | 49% |
| Wallgrove BESS 1 | $92k | $1,836/MW | $1,177/MWh | 42% |
| New England BESS | $86k | $860/MW | $341/MWh | 53% |
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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