Coleambally BESS

BESS · Coleambally BESS Trust · Storage - Battery

Dispatch stats Financials
Development AEMO: Publicly Announced Other - Other NEM data · 30 days
100/400 MW
Researched capacity / storage
Est. SRMC
$1.64/MWh
Key information
Capacity (AI)
100 MW / 400 MWh

User-provided AEMO spreadsheet figures for Coleambally BESS: 100 MW / 400 MWh.

AEMO status Publicly Announced
Project status Development (AI)

No web results returned; inferred from the project being only publicly announced / not confirmed under construction or operating.

Coordinates —

DUID —
Owner Coleambally BESS Trust
Commissioned —
Expected closure —
Closure date —
Technology Storage - Battery
Fuel Other - Other
Battery OEM —
Battery platform / chemistry —
Inverter OEM —
Inverter / PCS model —
Stats window
15 May 2026 08:00 → 14 Jun 2026 08:00 AEST

Dispatch & revenue

15 May 2026 08:00 → 14 Jun 2026 08:00 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
100 MW / 400 MWh
Revenue (× MLF) (stats)
See dispatch stats link above
Est. SRMC
$1.64/MWh
Capex total (greenfield)
$200.87M

Shown in table
$200.87M (2026 real AUD)

Reported / source value
$184.00M (2023 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Industry article repeats the $184 million capital investment figure for the project.

Reference
Risen powers up its BESS project pipeline (medium confidence)
Source recorded 04 Jun 2026
Capex refurbishment
—
Capex / MWh storage derived
$502,183

Shown in table
$502.2k (2026 real AUD)

Reported / source value
$460.0k (2023 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Derived capex per MWh from the reported capital cost and 400 MWh storage capacity.

Reference
SOS Coleambally BESS submission February 2023 (high confidence)
Source recorded 04 Jun 2026
Fixed OPEX (annual)
$2.73M

Shown in table
$2.73M (2026 real AUD)

Reported / source value
$2.50M (2023 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fixed OPEX / MW-yr
$27,293

Shown in table
$27.3k (2026 real AUD)

Reported / source value
$25.0k (2023 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Internal fallback default applied because no plant-specific fixed O&M figure was found in the search results.
Variable OPEX / MWh
$1.64

Shown in table
$1.64 (2026 real AUD)

Reported / source value
$1.50 (2023 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Internal fallback default applied because no plant-specific variable O&M figure was found in the search results.
Fuel cost / GJ
—
Heat rate GJ/MWh
—

Confidence: medium · Status: ai estimated · Capex basis: reported · AI checked 04 Jun 2026

Notes
Plant-specific capital cost of $184 million was found in a planning submission and echoed in an industry article; no clearly published owner press release with the capex figure was located. The project is a 100 MW / 400 MWh standalone battery with an expected operating life of 30 years.

Sources