How South Australia's grid-scale batteries performed in H2 2026: energy and FCAS market revenue, $/MW, $/MWh, top performers, and price events.
South Australia (SA1) batteries earned $19.22M in estimated gross energy and FCAS market revenue so far in H2 2026, from 15 grid-scale units tracked by NEMPulse. Figures cover H2 2026 to date (through 13 Nov 2026).
Normalised across 1,140 MW and 1,890 MWh of registered capacity, the region earned $17k/MW and $10k/MWh for the period.
Total revenue was down 52% on the same days of H1 2026, which returned $40.17M. Per MW per day — which strips out both fleet growth and the length of the window — earnings were down 61% at $124/MW/day. Optimal capture slipped 13 points, from 59% to 46%.
Energy arbitrage supplied 93% of the total and FCAS 6%, with estimated Frequency Performance Payments contributing the remaining 1% ($127k). Within FCAS, regulation accounted for 41% and contingency 59%; the single largest market was raise 1-second at $275k.
For context on the trading conditions, the average daily price spread (top two hours minus bottom two hours) in South Australia was $177/MWh, down 57% on the previous period, and the highest spot price reached $16,971/MWh.
Against the perfect-foresight energy benchmark, South Australia batteries captured 46% of what hindsight would have earned, an estimated $20.49M of unrealised upside.
On capture of the perfect-foresight energy benchmark, the strongest performers were Templers Battery Energy Storage System (70%), Clements Gap BESS (62%), Christies Beach Wastewater Treatment Plant (54%). At the other end: Tailem Bend 3 BESS (4%), Summerfield BESS 1 (-4%), Summerfield BESS 2 (-6%) — capture reflects strategy, contracting and constraints as much as skill, so a low figure is not automatically underperformance.
The strongest single day was 8 Jul 2026 at $1.23M, and the best single battery-day was Hornsdale Power Reserve on 8 Jul 2026 with $307k. Revenue stays concentrated: five of the period's 136 days delivered 15% of everything South Australia batteries earned.
Blyth Battery Energy Storage System led the region with $3.97M. Full dispatch, state-of-charge and bidding detail is available on each battery's page.
South Australia saw 68 price events this period, the sharpest an extreme price event peaking at $16,971/MWh.
| Battery | Energy + FCAS | $/MW | $/MWh | Capture |
|---|---|---|---|---|
| Blyth Battery Energy Storage System | $3.97M | $20k/MW | $9,916/MWh | 45% |
| Bungama Battery Energy Storage System | $3.50M | $23k/MW | $12k/MWh | 50% |
| Torrens Island BESS | $2.64M | $11k/MW | $11k/MWh | 38% |
| Mannum Battery Energy Storage System | $2.61M | $26k/MW | $13k/MWh | 52% |
| Templers Battery Energy Storage System | $1.89M | $17k/MW | $6,646/MWh | 70% |
| Clements Gap BESS | $1.86M | $31k/MW | $15k/MWh | 62% |
| Hornsdale Power Reserve | $1.61M | $11k/MW | $8,318/MWh | 32% |
| Tailem Bend 2 Hybrid Renewable Power Station | $555k | $14k/MW | $14k/MWh | 43% |
| Lake Bonney BESS1 | $440k | $18k/MW | $8,458/MWh | 37% |
| Adelaide Desalination Plant | $103k | $17k/MW | $9,856/MWh | 50% |
| Happy Valley Water Treatment Plant | $72k | $18k/MW | $9,786/MWh | 53% |
| Bolivar Waste Water Treatment Plant | $41k | $20k/MW | $9,646/MWh | 52% |
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: H1 2026NEM-wide wrap — H2 2026South Australia 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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