Koorangie Energy Storage System (KESSB1)

BESS · Shell Energy · Storage - Battery

Dispatch stats Financials
Operational AEMO: Committed VIC1 Other - Other NEM data · 24 hours
185/370 MW
Registered nameplate capacity / storage
24 hours revenue
$28.8k
Capacity factor
2.5%
Revenue / MWh
$262.62
Est. SRMC
$1.50/MWh

Energy flow

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

Key information
Capacity
185 MW / 370 MWh

AEMO status Committed
Project status Operational (AI)

Shell Energy 2025; Energy-Storage.News 2025 reports the Koorangie BESS is fully operational / started full operations.

Region VIC1
Coordinates -35.84400, 142.88900 (AI)

Energy-Storage.News 2025 places Koorangie BESS in northwest Victoria, Murray River REZ; approximate site coordinates inferred from the project location near the Kerang/Murray River REZ area.

MLF 0.9794
DUID KESSB1
Owner Shell Energy
Commissioned Jun 2025
Expected closure 2055
Closure date —
Technology Storage - Battery
Fuel Other - Other
Battery OEM Tesla
Battery platform / chemistry Megapack
Inverter OEM Tesla
Inverter / PCS model grid-forming inverter / PCS in Megapack platform
Equipment confidence high
Stats window
01 Aug 2026 12:30 → 02 Aug 2026 12:30 AEST

Dispatch & revenue

01 Aug 2026 12:30 → 02 Aug 2026 12:30 AEST

Energy revenue (× MLF)
$28.8k
FCAS revenue (× MLF)
$0
FCAS volume
— MWh
Dispatched
109.5 MWh
Available
1,468.7 MWh
Curtailed
1,359.4 MWh
Curtailment
92.6%
of available
MLF used
0.9794
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.

8.3 MWh 2%
at 02 Aug 04:00 · of 370 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 fromMLF
2025-01-29 0.9836
2025-07-01 0.9704
2026-07-01 0.9794

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.
Type
Battery (BESS)
Capacity
185 MW / 370 MWh
Revenue (× MLF) (stats)
See dispatch stats link above
Est. SRMC
$1.50/MWh
Capex total (greenfield)
$436.68M

Shown in table
$436.68M (2026 real AUD)

Reported / source value
$400.00M (2023 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Shell Energy’s article explicitly references a $400m Koorangie Energy Storage System in its related project listing, supporting a project-specific nominal greenfield capex figure.

Reference
Koorangie Energy Storage System reaches operational milestone (high confidence)
Source recorded 09 Jun 2026
Capex refurbishment
—
Capex / MWh storage derived
$1,180,220

Shown in table
$1.18M (2026 real AUD)

Reported / source value
$1.08M (2023 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
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: medium · Status: ai estimated · Capex basis: reported · AI checked 09 Jun 2026

Notes
Shell Energy’s offtake announcement refers to a $400m Koorangie Energy Storage System. This appears to be the project’s total nominal investment; I used it as the best available project-specific greenfield capex. No separate project-specific O&M or technical performance assumptions were located, so those fields are left blank rather than inferred. The asset is a 185MW / 370MWh battery now fully operational as of 23 July 2025.

Sources