Colongra (CG2)

Gas Peakers · Snowy Hydro Ltd · Turbine - OCGT

Dispatch stats Financials
Operational AEMO: In Service NSW1 Fossil - Natural Gas Pipeline NEM data · 18h
181 MW
Registered nameplate capacity
18h revenue
$0
Capacity factor
0.0%
Revenue / MWh
—
Est. SRMC
$135.55/MWh

Energy flow

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

Key information
Capacity
181 MW

AEMO status In Service
Project status Operational (AI)

Snowy Hydro gas generation page (snowyhydro.com.au) lists Colongra as an existing generation asset; NSW Planning Portal shows the project as completed/in service.

Region NSW1
Coordinates -33.20989, 151.54265 (AI)

Global Energy Monitor map snippet for Colongra power station gives coordinates lat -33.209894, lon 151.542652.

MLF 0.9849
DUID CG2
Owner Snowy Hydro Ltd
Commissioned —
Expected closure 2070
Closure date —
Technology Turbine - OCGT
Fuel Fossil - Natural Gas Pipeline
Gas turbine OEM Alstom
Turbine / engine model GT13E2
Equipment confidence medium
Stats window
13 Jun 2026 00:00 → 13 Jun 2026 17:30 AEST

Dispatch & revenue

13 Jun 2026 00:00 → 13 Jun 2026 17:30 AEST

Energy revenue (× MLF)
$0
FCAS revenue (× MLF)
$0
FCAS volume
— MWh
Dispatched
— MWh
Available
726.8 MWh
Curtailed
726.8 MWh
Curtailment
100.0%
of available
MLF used
0.9849
end of period

Revenue (× MLF)

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

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.
  • 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
2024-07-01 0.9828
2025-07-01 0.9849

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
OCGT
Capacity
181 MW
Revenue (× MLF) (stats)
See dispatch stats link above
Est. SRMC
$135.55/MWh
Capex total (greenfield)
$786.16M

Shown in table
$786.16M (2026 real AUD)

Reported / source value
$500.00M (2009 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Secondary-source statement of original construction cost and commissioning year.

Reference
Colongra Power Station (low confidence)
Source recorded 06 Jun 2026
Capex refurbishment
—
Capex / MW derived
$4,343,445

Shown in table
$4.34M (2026 real AUD)

Reported / source value
$2.76M (2009 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fixed OPEX (annual)
$8.59M

Shown in table
$8.59M (2026 real AUD)

Reported / source value
$12.15M (2024 nominal)
Table total may differ if recalculated from $/MW × registered capacity after CPI adjustment.
Fixed OPEX / MW-yr
$47,468

Shown in table
$47.5k (2026 real AUD)

Reported / source value
$45.0k (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Server-side fallback default applied because plant-specific fixed O&M was not found in the sources used.
Variable OPEX / MWh
$2.64

Shown in table
$2.64 (2026 real AUD)

Reported / source value
$2.50 (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Server-side fallback default applied because plant-specific variable O&M was not found in the sources used.
Fuel cost / GJ
$12.66

Shown in table
$12.66 (2026 real AUD)

Reported / source value
$12.00 (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Heat rate GJ/MWh
10.50

Shown in table
$10.50 (2026 real AUD)

How this was derived
Server-side fallback default applied because plant-specific heat rate was not found in the sources used.

Confidence: medium · Status: ai estimated · Capex basis: reported · AI checked 06 Jun 2026

Notes
Plant was completed and commissioned in 2009 and acquired by Snowy Hydro on 30 January 2015. No owner-reported plant-specific capex figure was found in current official sources; the $500 million construction cost is attributed in secondary reporting and should be treated as reported-but-not-owner-verified. O&M and performance defaults were used from the 2024 AEMO/Aurecon cost review and server-side fallback where not directly specified.

Sources