Comet Energy Park

BESS · Comet Energy Pty Ltd · Storage - Battery

Dispatch stats Financials
Development AEMO: Publicly Announced Other - Other NEM data · 24 hours
120/800 MW
Researched capacity / storage
Est. SRMC
$1.77/MWh
Key information
Capacity (AI)
120 MW / 800 MWh

AEMO spreadsheet (provided in prompt) lists 120.00 MW and 800.00 MWh for Comet Energy Park; no alternative published capacity figure was found in available search results.

AEMO status Publicly Announced
Project status Development (AI)

AEMO spreadsheet indicates the asset is only 'Publicly Announced'; no primary-source construction or commissioning evidence was found.

Coordinates —

DUID —
Owner Comet Energy Pty Ltd
Commissioned —
Expected closure —
Closure date —
Technology Storage - Battery
Fuel Other - Other
Battery OEM —
Battery platform / chemistry —
Inverter OEM —
Inverter / PCS model —
Stats window
12 Jun 2026 22:35 → 13 Jun 2026 22:35 AEST

Dispatch & revenue

12 Jun 2026 22:35 → 13 Jun 2026 22:35 AEST

No DUID specified. Open this page from the stats list or a generator profile.

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
120 MW / 800 MWh
Revenue (× MLF) (stats)
See dispatch stats link above
Est. SRMC
$1.77/MWh
Capex total (greenfield)
$295.36M

Shown in table
$295.36M (2026 real AUD)

Reported / source value
$280.00M (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Capex refurbishment
—
Capex / MWh storage derived
$369,198

Shown in table
$369.2k (2026 real AUD)

Reported / source value
$350.0k (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fixed OPEX (annual)
—
Fixed OPEX / MW-yr default
$25,000

Shown in table
$25.0k (2026 real AUD)
Variable OPEX / MWh
$1.77

Shown in table
$1.77 (2026 real AUD)

Reported / source value
$1.68 (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Used the 4-hour BESS example as the closest match to the site's four-hour battery duration; interpreted as an indicative O&M proxy, not site-specific data.

Reference
2024 Energy Technology Cost and Parameters Review (medium confidence)
Source recorded 07 Jun 2026
Fuel cost / GJ
—
Heat rate GJ/MWh
—

Confidence: low · Status: ai estimated · Capex basis: default · AI checked 07 Jun 2026

Notes
No plant-specific greenfield capex could be verified from owner/developer or government sources in the available web results. Public evidence confirms Comet Energy Park is a proposed 120 MW / 800 MWh battery in Queensland, with development approval referenced in recent professional commentary. In the absence of project-specific capex, a fallback battery O&M proxy from AEMO/Aurecon 2024 was used only for variable O&M; fixed O&M was not extracted because the report tables are structured around example project durations rather than a direct per-MW figure for this exact site. Asset life set conservatively to 20 years based on large-scale lithium-ion BESS design life discussion in the AEMO/Aurecon review.

Sources