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 $11.04M in estimated gross energy and FCAS market revenue in September 2026, from 15 grid-scale units tracked by NEMPulse. Figures cover the full period.
Normalised across 3,059 MW and 8,532 MWh of registered capacity, the region earned $3,608/MW and $1,293/MWh for the period.
Total revenue was up 18% on August 2026, which returned $9.35M. Per MW per day — which strips out both fleet growth and the length of the window — earnings were up 26% at $120/MW/day. Optimal capture improved 5 points, from 53% to 58%.
Energy arbitrage supplied 99% of the total and FCAS 0%, with estimated Frequency Performance Payments contributing the remaining 1% ($44k). Within FCAS, regulation accounted for 87% and contingency 13%; the single largest market was raise regulation at $24k.
For context on the trading conditions, the average daily price spread (top two hours minus bottom two hours) in New South Wales was $107/MWh, up 5% on the previous period, and the highest spot price reached $384/MWh.
Against the perfect-foresight energy benchmark, New South Wales batteries captured 58% of what hindsight would have earned, an estimated $7.55M of unrealised upside.
On capture of the perfect-foresight energy benchmark, the strongest performers were Orana BESS (78%), Limondale Battery (76%), Eraring Battery Energy Storage System (66%). At the other end: Williamsdale BESS (33%), Waratah Super Battery (32%), Eraring Battery Energy Storage System 2 (-131%) — capture reflects strategy, contracting and constraints as much as skill, so a low figure is not automatically underperformance.
The strongest single day was 16 Sep 2026 at $803k, and the best single battery-day was Eraring Battery Energy Storage System on 7 Sep 2026 with $223k. Revenue stays concentrated: five of the period's 30 days delivered 30% of everything New South Wales batteries earned.
Orana BESS led the region with $3.22M. Full dispatch, state-of-charge and bidding detail is available on each battery's page.
| Battery | Energy + FCAS | $/MW | $/MWh | Capture |
|---|---|---|---|---|
| Orana BESS | $3.22M | $7,754/MW | $1,938/MWh | 78% |
| Eraring Battery Energy Storage System | $3.06M | $6,662/MW | $1,535/MWh | 66% |
| Liddell Battery Energy Storage System | $1.44M | $2,876/MW | $1,324/MWh | 54% |
| Waratah Super Battery | $1.21M | $1,429/MW | $724/MWh | 32% |
| Limondale Battery | $899k | $18k/MW | $1,677/MWh | 76% |
| Capital Battery | $315k | $3,146/MW | $1,573/MWh | 53% |
| Smithfield Battery Energy Storage System, Units 1 - 36 | $219k | $3,370/MW | $1,685/MWh | 58% |
| New England BESS | $210k | $2,096/MW | $832/MWh | 54% |
| Riverena Energy Storage System 2 | $112k | $1,726/MW | $863/MWh | 52% |
| Riverina Energy Storage System 1 | $100k | $1,674/MW | $837/MWh | 49% |
| Wallgrove BESS 1 | $82k | $1,639/MW | $1,051/MWh | 39% |
| Quorn Park Solar Hybrid | $65k | $3,427/MW | $1,628/MWh | 64% |
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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