Halys BESS (Akaysha)

BESS · Halys BESS ProjectCo Pty Ltd · Storage - Battery

Dispatch stats Financials

Development AEMO: Publicly Announced Other - Other NEM data · 24 hours

—

Registered nameplate capacity — refresh AI for MW/MWh

Est. SRMC

$1.58/MWh

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

AEMO status Publicly Announced

Project status Development

Coordinates —

DUID —

Owner Halys BESS ProjectCo Pty Ltd

Commissioned —

Expected closure —

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)	— How this was derived No verified project-specific investment or construction cost announcement was found in the searched sources.
Capex refurbishment	—
Capex / MWh storage	$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	$26,371 Shown in table $26.4k (2026 real AUD) Reported / source value $25.0k (2024 nominal) Adjusted to 2026 real AUD using Australian CPI (All Groups). How this was derived User-provided fallback used because no plant-specific O&M benchmark was sourced.
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 User-provided fallback used because no plant-specific variable O&M benchmark was sourced.
Fuel cost / GJ	—
Heat rate GJ/MWh	—

Confidence: low · Status: ai estimated · Capex basis: default · AI checked 06 Jun 2026

Notes
No plant-specific greenfield capex or commissioning date was found in the searched official/project sources. Akaysha’s project page confirms Halys BESS is a proposed project of up to 1000 MW / 2000 MWh adjacent to Halys Substation in Queensland, but does not disclose project cost. Because no verified project-specific investment figure was found, capex remains unset rather than inferred from benchmarks. O&M values fall back to the provided internal defaults pending a sourced battery benchmark or project-specific estimate.

Sources

capex_basis (low)
capex_total_aud (low)
capex_year (low)
emissions_intensity_tco2_mwh (medium)
fixed_opex_per_mw_year_aud (medium)
generator_type_normalised — Halys BESS Project | Akaysha Energy's Renewable Storage Solutions (high)
owner — Halys BESS Project | Akaysha Energy's Renewable Storage Solutions (medium)
site_name — Halys BESS Project | Akaysha Energy's Renewable Storage Solutions (high)
variable_opex_per_mwh_aud (medium)

Custom date range

Halys BESS (Akaysha)

Dispatch & revenue

Financial overview

Sources