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 $9.35M 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 $2,970/MW and $969/MWh for the period.
Total revenue was up 23% on July 2026, which returned $7.58M. Per MW per day — which strips out both fleet growth and the length of the window — earnings were up 5% at $96/MW/day. Optimal capture improved 4 points, from 50% to 53%.
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 53% of what hindsight would have earned, an estimated $7.93M of unrealised upside.
On capture of the perfect-foresight energy benchmark, the strongest performers were Limondale Battery (85%), Orana BESS (71%), Eraring Battery Energy Storage System (68%). At the other end: Wallgrove BESS 1 (38%), Williamsdale BESS (14%), Liddell Battery Energy Storage System (9%) — 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 $896k, and the best single battery-day was Orana BESS on 5 Aug 2026 with $275k. 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 $3.01M. 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 | $3.01M | $6,545/MW | $1,508/MWh | 68% |
| Orana BESS | $2.40M | $5,774/MW | $1,444/MWh | 71% |
| Waratah Super Battery | $1.59M | $1,871/MW | $947/MWh | 39% |
| Limondale Battery | $836k | $17k/MW | $1,560/MWh | 85% |
| Capital Battery | $240k | $2,403/MW | $1,202/MWh | 40% |
| Smithfield Battery Energy Storage System, Units 1 - 36 | $238k | $3,656/MW | $1,828/MWh | 62% |
| New England BESS | $230k | $2,298/MW | $912/MWh | 61% |
| Riverena Energy Storage System 2 | $187k | $2,876/MW | $1,438/MWh | 62% |
| Liddell Battery Energy Storage System | $175k | $350/MW | $161/MWh | 9% |
| Riverina Energy Storage System 1 | $153k | $2,543/MW | $1,271/MWh | 49% |
| Wallgrove BESS 1 | $82k | $1,639/MW | $1,051/MWh | 38% |
| Darlington Point Energy Storage System | $69k | $2,779/MW | $1,389/MWh | 62% |
Capture = actual energy revenue as a share of the perfect-foresight LP benchmark; shown only for units with material modelled upside.
Keep reading: NEM-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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