How South Australia's grid-scale batteries performed in June 2026: energy and FCAS market revenue, $/MW, $/MWh, top performers, and price events.
South Australia (SA1) batteries earned $4.11M in estimated gross energy and FCAS market revenue in June 2026, from 14 grid-scale units tracked by NEMPulse. Figures cover the full period.
Normalised across 1,131 MW and 1,868 MWh of registered capacity, the region earned $3,634/MW and $2,201/MWh for the period.
Total revenue was up 300% on May 2026, which returned $1.03M. Per MW per day — which strips out both fleet growth and the length of the window — earnings were up 280% at $121/MW/day. Optimal capture improved 19 points, from 15% to 34%.
Energy arbitrage supplied 88% of the total and FCAS 11%, with estimated Frequency Performance Payments adding $31k. Within FCAS, regulation accounted for 39% and contingency 61%; the single largest market was raise regulation at $113k.
For context on the trading conditions, the average daily price spread (top two hours minus bottom two hours) in South Australia was $575/MWh, up 443% on the previous period, and the highest spot price reached $20,300/MWh.
Against the perfect-foresight energy benchmark, South Australia batteries captured 34% of what hindsight would have earned, an estimated $7.00M of unrealised upside.
On capture of the perfect-foresight energy benchmark, the strongest performers were Mannum Battery Energy Storage System (58%), Dalrymple North BESS (54%), Christies Beach Wastewater Treatment Plant (53%). At the other end: Templers Battery Energy Storage System (24%), Bungama Battery Energy Storage System (10%), Clements Gap BESS (8%) — capture reflects strategy, contracting and constraints as much as skill, so a low figure is not automatically underperformance.
The strongest single day was 21 Jun 2026 at $1.70M, and the best single battery-day was Mannum Battery Energy Storage System on 21 Jun 2026 with $474k. Revenue stays concentrated: five of the period's 30 days delivered 72% of everything South Australia batteries earned.
Mannum Battery Energy Storage System led the region with $1.16M. Full dispatch, state-of-charge and bidding detail is available on each battery's page.
South Australia saw 19 price events this period, the sharpest an extreme price event peaking at $20,300/MWh.
| Battery | Energy + FCAS | $/MW | $/MWh | Capture |
|---|---|---|---|---|
| Mannum Battery Energy Storage System | $1.16M | $12k/MW | $5,788/MWh | 58% |
| Torrens Island BESS | $672k | $2,688/MW | $2,688/MWh | 30% |
| Blyth Battery Energy Storage System | $614k | $3,071/MW | $1,535/MWh | 26% |
| Hornsdale Power Reserve | $531k | $3,537/MW | $2,735/MWh | 38% |
| Tailem Bend 2 Hybrid Renewable Power Station | $326k | $7,939/MW | $7,939/MWh | 52% |
| Templers Battery Energy Storage System | $302k | $2,720/MW | $1,060/MWh | 24% |
| Bungama Battery Energy Storage System | $218k | $1,453/MW | $727/MWh | 10% |
| Lake Bonney BESS1 | $146k | $5,848/MW | $2,811/MWh | 35% |
| Dalrymple North BESS | $52k | $1,731/MW | $4,256/MWh | 54% |
| Clements Gap BESS | $30k | $503/MW | $251/MWh | 8% |
| Adelaide Desalination Plant | $23k | $3,728/MW | $3,821/MWh | 47% |
| Happy Valley Water Treatment Plant | $18k | $4,432/MW | $4,432/MWh | 50% |
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: May 2026NEM-wide wrap — June 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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