How New South Wales's grid-scale batteries performed in September 2026: energy and FCAS market revenue, $/MW, $/MWh, top performers, and price events.
New South Wales (NSW1) batteries earned $4.22M in estimated gross energy and FCAS market revenue so far in September 2026, from 15 grid-scale units tracked by NEMPulse. Figures cover September 2026 to date (through 11 Sep 2026).
Normalised across 3,059 MW and 8,532 MWh of registered capacity, the region earned $1,378/MW and $494/MWh for the period.
Total revenue was up 25% on the same days of August 2026, which returned $3.38M. Per MW per day — which strips out both fleet growth and the length of the window — earnings were broadly flat at $125/MW/day. Optimal capture improved 12 points, from 48% to 60%.
Energy arbitrage supplied 99% of the total and FCAS 0%, with estimated Frequency Performance Payments contributing the remaining 1% ($13k). Within FCAS, regulation accounted for 80% and contingency 20%; the single largest market was raise regulation at $5k.
For context on the trading conditions, the average daily price spread (top two hours minus bottom two hours) in New South Wales was $108/MWh, up 4% on the previous period, and the highest spot price reached $300/MWh.
Against the perfect-foresight energy benchmark, New South Wales batteries captured 60% of what hindsight would have earned, an estimated $2.74M of unrealised upside.
On capture of the perfect-foresight energy benchmark, the strongest performers were Orana BESS (82%), Limondale Battery (82%), Quorn Park Solar Hybrid (74%). At the other end: Waratah Super Battery (16%), Williamsdale BESS (8%), Eraring Battery Energy Storage System 2 (-32%) — capture reflects strategy, contracting and constraints as much as skill, so a low figure is not automatically underperformance.
The strongest single day was 7 Sep 2026 at $690k, and the best single battery-day was Eraring Battery Energy Storage System on 7 Sep 2026 with $223k.
Orana BESS led the region with $1.42M. Full dispatch, state-of-charge and bidding detail is available on each battery's page.
| Battery | Energy + FCAS | $/MW | $/MWh | Capture |
|---|---|---|---|---|
| Orana BESS | $1.42M | $3,420/MW | $855/MWh | 82% |
| Eraring Battery Energy Storage System | $1.05M | $2,290/MW | $527/MWh | 60% |
| Liddell Battery Energy Storage System | $580k | $1,160/MW | $534/MWh | 61% |
| Limondale Battery | $383k | $7,656/MW | $714/MWh | 82% |
| Waratah Super Battery | $202k | $238/MW | $120/MWh | 16% |
| Capital Battery | $149k | $1,485/MW | $743/MWh | 62% |
| New England BESS | $126k | $1,255/MW | $498/MWh | 65% |
| Smithfield Battery Energy Storage System, Units 1 - 36 | $101k | $1,553/MW | $776/MWh | 68% |
| Riverena Energy Storage System 2 | $44k | $684/MW | $342/MWh | 68% |
| Wallgrove BESS 1 | $41k | $816/MW | $523/MWh | 49% |
| Riverina Energy Storage System 1 | $40k | $672/MW | $336/MWh | 67% |
| Quorn Park Solar Hybrid | $33k | $1,762/MW | $837/MWh | 74% |
Capture = actual energy revenue as a share of the perfect-foresight LP benchmark; shown only for units with material modelled upside.
Third-party reporting on these units, matched automatically and linked for context. NEMPulse does not endorse or verify external coverage.
Keep reading: Previous period: August 2026NEM-wide wrap — September 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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