Abermain BESS

BESS · FIrm Power P/L · Storage - Battery

Dispatch stats Financials

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

200/800 MW

Researched capacity / storage

Est. SRMC

$10.00/MWh

Capacity (AI)

200 MW / 800 MWh

Initial Power project page (host) states the planned Abermain BESS is 200MW; four-hour duration is implied by the project description and common BESS framing, giving ~800MWh.

AEMO status Publicly Announced

Project status Development (AI)

Firm Power project page (2024) describes Abermain BESS as a proposed battery; RPS project page also says proposed, indicating pre-construction/development.

Coordinates —

DUID —

Owner FIrm Power P/L

Commissioned —

Expected closure —

Closure date —

Technology Storage - Battery

Fuel Other - Other

Battery OEM —

Battery platform / chemistry battery storage (BESS), likely LFP chemistry

Inverter OEM —

Inverter / PCS model —

Equipment confidence low

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) derived	$200.00M Shown in table $200.00M (2026 real AUD)
Capex refurbishment	—
Capex / MW	$1,000,000 Shown in table $1.00M (2026 real AUD)
Fixed OPEX (annual)	$500.0k Shown in table $500.0k (2026 real AUD)
Fixed OPEX / MW-yr	$2,970 Shown in table $3.0k (2026 real AUD)
Variable OPEX / MWh	$10.00 Shown in table $10.00 (2026 real AUD)
Fuel cost / GJ	—
Heat rate GJ/MWh	—

Confidence: medium · Status: ai estimated · Capex basis: estimated · AI checked 02 Jun 2026

Notes
Capex values are based on industry averages for battery storage systems.

Sources

Asset Life — Battery Storage Lifecycle (medium)
Capex per MW — Battery Storage Costs (medium)
Efficiency — Battery Storage Efficiency (medium)
Fixed O&M — 2021-22 Integrated Systems Plan (medium)

Custom date range

Abermain BESS

Dispatch & revenue

Financial overview

Sources