How Queensland's grid-scale batteries performed in September 2026: energy and FCAS market revenue, $/MW, $/MWh, top performers, and price events.
Queensland (QLD1) batteries earned $11.58M 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 2,574 MW and 5,571 MWh of registered capacity, the region earned $4,497/MW and $2,078/MWh for the period.
Total revenue was broadly flat on August 2026, which returned $11.67M. Per MW per day — which strips out both fleet growth and the length of the window — earnings were up 11% at $150/MW/day.
Energy arbitrage supplied 97% of the total and FCAS 3%, with estimated Frequency Performance Payments contributing the remaining 0% ($66k). Within FCAS, regulation accounted for 60% and contingency 40%; the single largest market was raise regulation at $114k.
For context on the trading conditions, the average daily price spread (top two hours minus bottom two hours) in Queensland was $114/MWh, up 4% on the previous period, and the highest spot price reached $446/MWh.
Against the perfect-foresight energy benchmark, Queensland batteries captured 70% of what hindsight would have earned, an estimated $4.81M of unrealised upside.
On capture of the perfect-foresight energy benchmark, the strongest performers were Western Downs Battery Energy Storage System (80%), Supernode BESS (78%), Swanbank BESS (75%). At the other end: Wandoan Battery Energy Storage System (BESS) (44%), Woolooga BESS (10%), Stanwell Battery Energy Storage System (-55%) — 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 $595k, and the best single battery-day was Supernode BESS on 4 Sep 2026 with $107k.
Supernode BESS led the region with $2.17M. Full dispatch, state-of-charge and bidding detail is available on each battery's page.
Queensland saw one price event this period, negative pricing bottoming at $-246/MWh.
| Battery | Energy + FCAS | $/MW | $/MWh | Capture |
|---|---|---|---|---|
| Supernode BESS | $2.17M | $8,334/MW | $1,988/MWh | 78% |
| Western Downs Battery Energy Storage System (BESS) | $1.22M | $4,788/MW | $2,394/MWh | 72% |
| Tarong BESS | $1.18M | $3,927/MW | $1,963/MWh | 66% |
| Western Downs Battery Energy Storage System | $1.10M | $4,324/MW | $2,757/MWh | 80% |
| Swanbank BESS | $1.10M | $4,391/MW | $2,196/MWh | 75% |
| Supernode BESS | $1.09M | $4,184/MW | $1,996/MWh | 70% |
| Brendale BESS | $931k | $4,540/MW | $2,270/MWh | 73% |
| Greenbank BESS | $756k | $3,778/MW | $1,889/MWh | 65% |
| Broadsound Energy Park | $682k | $3,788/MW | $1,894/MWh | 63% |
| Ulinda Park BESS | $674k | $4,345/MW | $2,260/MWh | 66% |
| Chinchilla BESS, Units 1-80 | $321k | $3,205/MW | $1,603/MWh | 53% |
| Wandoan Battery Energy Storage System (BESS) | $240k | $2,402/MW | $1,601/MWh | 44% |
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: August 2026NEM-wide wrap — September 2026Queensland 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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