Tungkillo South BESS

BESS · RES Australia Pty Ltd · Storage - Battery

Dispatch stats Financials

Development AEMO: Publicly Announced Other - Other NEM data · 7 days

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Registered nameplate capacity — refresh AI for MW/MWh

Est. SRMC

$8.54/MWh

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

AEMO status Publicly Announced

Project status Development

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 —

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.

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	—
Capex / MWh storage	—
Fixed OPEX (annual)	—
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	—
Heat rate GJ/MWh	—

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

capex_per_mw_aud — Iberdrola strengthens its presence in Australia with the purchase of the Tungkillo battery storage project (medium)
capex_total_aud — Iberdrola strengthens its presence in Australia with the purchase of the Tungkillo battery storage project (high)
emissions_intensity_tco2_mwh (high)
fixed_opex_per_mw_year_aud — 2023 Cost and Technical Parameters Review_Final Report (high)
generator_identity — Tungkillo Battery | Iberdrola Australia (high)
variable_opex_per_mwh_aud — 2023 Cost and Technical Parameters Review_Final Report (medium)

Custom date range

Tungkillo South BESS

Dispatch & revenue

Financial overview

Sources