Philip Island BESS (PIBESS1)

BESS · Mondo Power · Storage - Battery

Dispatch stats Financials

Operational AEMO: In Service VIC1 Other - Other NEM data · 7 days

5/10 MW

Registered nameplate capacity / storage

7 days revenue

$3.1k

Capacity factor

-10.8%

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

5 MW / 10 MWh

AEMO status In Service

Project status Operational (AI)

Mondo project page and AEMO data indicate the Phillip Island battery is in service and commissioned in 2023.

Region VIC1

Coordinates —

MLF 0.9920

DUID PIBESS1

Owner Mondo Power

Commissioned May 2023

Expected closure 2038

Closure date —

Technology Storage - Battery

Fuel Other - Other

Battery OEM Hitachi ABB Power Grids

Battery platform / chemistry battery storage system

Inverter OEM —

Inverter / PCS model —

Equipment confidence medium

Dispatch & revenue

18 Sep 2026 09:30 → 25 Sep 2026 09:30 AEST

Energy revenue (× MLF)

$3.1k

FCAS revenue (× MLF)

$1.2k

FCAS volume

362.2 MWh

Dispatched

-90.6 MWh

Available

701.7 MWh

Curtailed

795.9 MWh

Curtailment

113.4%

of available

MLF used

0.9920

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.

5.9 MWh 59%

at 25 Sep 04:00 · of 10 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
2024-08-15	0.9848
2025-07-01	0.9862
2026-07-01	0.9920

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	$3.50M Shown in table $3.50M (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