Mornington BESS (MRNBESS1)

BESS · Mornington BESS Project Pty Ltd as Trustee of Mornington BESS Project Trust · Storage - Battery

Dispatch stats Financials

Construction AEMO: Committed VIC1 Other - Other NEM data · 30 days

240/480 MW

Registered nameplate capacity / storage

30 days revenue

$50.7k

Capacity factor

-0.6%

Revenue / MWh

—

Est. SRMC

$1.50/MWh

Energy flow

Dispatch target (cleared) vs availability — 5‑minute intervals. VIC1 regional price (RRP) on right axis.

Capacity

240 MW / 480 MWh

AEMO status Committed

Project status Construction (AI)

Mornington BESS website (2025): project progress shows construction stage and completion scheduled for 2025.

Region VIC1

Coordinates —

MLF 0.9971

DUID MRNBESS1

Owner Mornington BESS Project Pty Ltd as Trustee of Mornington BESS Project Trust

Commissioned Feb 2026

Expected closure 2046

Closure date —

Technology Storage - Battery

Fuel Other - Other

Battery OEM —

Battery platform / chemistry battery

Inverter OEM —

Inverter / PCS model —

Equipment confidence low

Dispatch & revenue

26 Aug 2026 05:35 → 25 Sep 2026 05:35 AEST

Energy revenue (× MLF)

$50.7k

FCAS revenue (× MLF)

FCAS volume

— MWh

Dispatched

-960.8 MWh

Available

5,315.5 MWh

Curtailed

6,277.1 MWh

Curtailment

118.1%

of available

MLF used

0.9971

end of period

Revenue (× MLF)

Estimated $ per interval — energy (RRP) and FCAS (regional FCAS prices), both × MLF.

🔋 State of charge

Stored energy at the start of each 5‑minute interval (AEMO INITIAL_ENERGY_STORAGE). Available up to the latest next‑day dispatch file.

471.4 MWh 98%

at 25 Sep 03:35 · of 480 MWh registered

Methodology & assumptions

Dispatch & availability — AEMO Next Day Dispatch UNIT_SOLUTION (5‑minute intervals). Intervention intervals excluded.
Regional price — dispatch_price RRP matched by settlement time and NEM region (from generator registry).
Energy revenue (× MLF) — cleared MW × (5/60 h) × RRP × MLF.
FCAS revenue & volume — cleared FCAS MW from DISPATCHLOAD (raise/lower 6s, 60s, 5min, reg) × (5/60 h) × regional FCAS price × MLF. Volume is total FCAS enablement MWh across services.
State of charge — INITIAL_ENERGY_STORAGE (MWh at interval start) from UNIT_SOLUTION, published for bidirectional/storage units. Next-day data — the SOC line lags real time by up to a day.
Curtailment — estimated economic curtailment when availability exceeds dispatch target: max(0, availability − cleared) × (5/60) MWh.
Not settlement — estimates only. AEMO settlement applies DLF, rebids, constraints, and other factors not modelled here.

MLF history (AEMO daily)

Effective from	MLF
2026-03-17	0.9984
2026-07-01	0.9971

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) default	$168.00M Shown in table $168.00M (2026 real AUD)
Capex refurbishment	—
Capex / MWh storage default	$350,000 Shown in table $350.0k (2026 real AUD)
Fixed OPEX (annual)	—
Fixed OPEX / MW-yr default	$25,000 Shown in table $25.0k (2026 real AUD)
Variable OPEX / MWh default	$1.50 Shown in table $1.50 (2026 real AUD)
Fuel cost / GJ	—
Heat rate GJ/MWh	—

Confidence: unknown · Status: needs review · Capex basis: unknown