Orana BESS (ORABESS1)

BESS · Wellington Battery ProjectCo Pty Ltd · Storage - Battery

Dispatch stats Financials

Development AEMO: Committed NSW1 Other - Other NEM data · 24 hours

415/1,660 MW

Registered nameplate capacity / storage

24 hours revenue

$50.9k

Capacity factor

-0.1%

Revenue / MWh

—

Est. SRMC

$1.50/MWh

Energy flow

Dispatch target (cleared) vs availability — 5‑minute intervals. NSW1 regional price (RRP) on right axis.

Capacity

415 MW / 1,660 MWh

AEMO status Committed

Project status Development

Region NSW1

Coordinates —

MLF 0.9550

DUID ORABESS1

Owner Wellington Battery ProjectCo Pty Ltd

Commissioned Jun 2026

Expected closure 2066

Closure date —

Technology Storage - Battery

Fuel Other - Other

Battery OEM —

Battery platform / chemistry —

Inverter OEM —

Inverter / PCS model —

Dispatch & revenue

21 Jul 2026 19:45 → 22 Jul 2026 19:45 AEST

Energy revenue (× MLF)

$50.9k

FCAS revenue (× MLF)

FCAS volume

— MWh

Dispatched

-8.6 MWh

Available

3,492.9 MWh

Curtailed

4,460.0 MWh

Curtailment

127.7%

of available

MLF used

0.9550

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.

446.6 MWh 27%

at 22 Jul 04:00 · of 1,660 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
2025-12-12	0.9737
2026-07-01	0.9550

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	$581.00M Shown in table $581.00M (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