Tungkillo South BESS

BESS · RES Australia Pty Ltd · Storage - Battery

Dispatch stats Financials
Development AEMO: Publicly Announced Other - Other NEM data · 24 hours
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Registered nameplate capacity — refresh AI for MW/MWh
Est. SRMC
$8.54/MWh
Key information

Capacity not yet researched — use Refresh equipment & project status (AI).

AEMO status Publicly Announced
Project status Development (AI)

Coordinates —

DUID —
Owner RES Australia Pty Ltd
Commissioned Jun 2029
Expected closure 2058
Closure date —
Technology Storage - Battery
Fuel Other - Other
Battery OEM —
Battery platform / chemistry —
Inverter OEM —
Inverter / PCS model —
Stats window
12 Jun 2026 20:35 → 13 Jun 2026 20:35 AEST

Dispatch & revenue

12 Jun 2026 20:35 → 13 Jun 2026 20:35 AEST

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Financial overview

2026 real AUD. Monetary values are CPI-adjusted to 2026 real Australian dollars. Greenfield capex uses AEMO benchmarks when plant-specific cost is unknown.
Type
Battery (BESS)
Capacity
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Revenue (× MLF) (stats)
See dispatch stats link above
Est. SRMC
$8.54/MWh
Capex total (greenfield)
$504.10M

Shown in table
$504.10M (2026 real AUD)

Reported / source value
$492.00M (2025 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Reported project investment used as best available project-specific capital figure.

Reference
Iberdrola strengthens its presence in Australia with the purchase of the Tungkillo battery storage project (high confidence)
Source recorded 06 Jun 2026
Capex refurbishment
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Capex / MWh storage
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Fixed OPEX (annual)
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Fixed OPEX / MW-yr
$26,951

Shown in table
$27.0k (2026 real AUD)

Reported / source value
$25.6k (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Used as battery benchmark fallback for fixed O&M.

Reference
2023 Cost and Technical Parameters Review_Final Report (high confidence)
Source recorded 06 Jun 2026
Variable OPEX / MWh
$8.54

Shown in table
$8.54 (2026 real AUD)

Reported / source value
$8.10 (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Used as nearest available battery O&M benchmark fallback.

Reference
2023 Cost and Technical Parameters Review_Final Report (medium confidence)
Source recorded 06 Jun 2026
Fuel cost / GJ
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Heat rate GJ/MWh
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Confidence: high · Status: ai estimated · Capex basis: reported · AI checked 06 Jun 2026

Notes
Project-specific reported investment was found in Iberdrola's acquisition announcement for the Tungkillo battery storage project: €275 million, converted here to approximately A$492 million using the contemporaneous EUR/AUD magnitude implied by the announcement context. The source does not state a separate EPC/construction cost, so this is the best available project-specific investment figure but it is an acquisition/investment amount rather than a fully itemised owner construction budget. Site capacity is up to 270 MW / 1,080 MWh; no plant-specific fixed O&M or asset life was found, so AEMO/Aurecon battery benchmark O&M is used as fallback. No fuel cost applies to battery storage.

Sources