Grahamvale BESS - KCI

BESS · AE BESS 3 Pty Ltd as Trustee for AE BESS 3 Unit Trust · 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
$1.58/MWh
Key information

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

AEMO status Publicly Announced
Project status Development (AI)

Coordinates —

DUID —
Owner AE BESS 3 Pty Ltd as Trustee for AE BESS 3 Unit Trust
Commissioned —
Expected closure —
Closure date —
Technology Storage - Battery
Fuel Other - Other
Battery OEM —
Battery platform / chemistry —
Inverter OEM —
Inverter / PCS model —
Stats window
13 Jun 2026 00:00 → 13 Jun 2026 23:59 AEST

Dispatch & revenue

13 Jun 2026 00:00 → 13 Jun 2026 23:59 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
$1.58/MWh
Capex total (greenfield)
$819.67M

Shown in table
$819.67M (2026 real AUD)

Reported / source value
$800.00M (2025 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Project database lists Grahamvale Battery Energy Storage System with an estimated value of $800 million.

Reference
AUSTRALIAN CONSTRUCTION (medium confidence)
Source recorded 08 Jun 2026
Capex refurbishment
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Capex / MWh storage
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How this was derived
Computed capex per MWh from the listed project value and developer-stated storage size.

Reference
AUSTRALIAN CONSTRUCTION (medium confidence)
Source recorded 08 Jun 2026
Fixed OPEX (annual)
$4.05M

Shown in table
$4.05M (2026 real AUD)

Reported / source value
$3.84M (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fixed OPEX / MW-yr
$8,439

Shown in table
$8.4k (2026 real AUD)

Reported / source value
$8.0k (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
AEMO/Aurecon benchmark gives fixed O&M for 2-hour and 4-hour BESS; 4-hour value is $12,800/MW-year, but the final profile uses the server fallback per instructions.

Reference
2024 Energy Technology Cost and Parameters Review (high confidence)
Source recorded 08 Jun 2026
Variable OPEX / MWh
$1.58

Shown in table
$1.58 (2026 real AUD)

Reported / source value
$1.50 (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Used internal fallback because no plant-specific variable O&M source was found and the battery benchmark excerpt did not provide a clean project-specific variable O&M figure suitable for direct application.
Fuel cost / GJ
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Heat rate GJ/MWh
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Confidence: medium · Status: ai estimated · Capex basis: reported · AI checked 08 Jun 2026

Notes
No plant-specific owner/developer capex announcement was found. Capex is inferred from a project database listing Grahamvale Battery Energy Storage System at $800 million and paired with the project size on the developer site (480 MW / 1,920 MWh). Fixed O&M is based on AEMO/Aurecon 2024 BESS benchmark for 4-hour systems ($12,800/MW-year), but the internal fallback was used for the final profile because the benchmark lines found were on a $/MW basis and the dataset requested battery defaults unless a plant-specific O&M source is available. The project appears proposed/early-stage rather than commissioned; capacity in the user prompt was blank, so 480 MW and 1,920 MWh were taken from the developer project page.

Sources