Colongra (CG3)

Gas Peakers · Snowy Hydro Ltd · Turbine - OCGT

Dispatch stats Financials
Operational AEMO: In Service NSW1 Fossil - Natural Gas Pipeline NEM data · 16h
181 MW
Registered nameplate capacity
16h revenue
$0
Capacity factor
0.0%
Revenue / MWh
—
Est. SRMC
$144.24/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 Colongra OEMP / operational environmental management plan (2015); site is an existing in-service power station.

Region NSW1
Coordinates -33.20989, 151.54265 (AI)

Global Energy Monitor wiki coordinates for Colongra power station.

MLF 0.9849
DUID CG3
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 16:20 AEST

Dispatch & revenue

13 Jun 2026 00:00 → 13 Jun 2026 16:20 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
$144.24/MWh
Capex total (greenfield)
$229.11M

Shown in table
$229.11M (2026 real AUD)

Reported / source value
$217.20M (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Capex refurbishment
—
Capex / MW derived
$1,265,823

Shown in table
$1.27M (2026 real AUD)

Reported / source value
$1.20M (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fixed OPEX (annual)
$35.15M

Shown in table
$35.15M (2026 real AUD)

Reported / source value
$33.32M (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fixed OPEX / MW-yr
$194,182

Shown in table
$194.2k (2026 real AUD)

Reported / source value
$184.1k (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Used as a large gas turbine / OCGT proxy from the review.

Reference
2024 Energy Technology Cost and Technical Parameter Review (high confidence)
Source recorded 07 Jun 2026
Variable OPEX / MWh
$11.33

Shown in table
$11.33 (2026 real AUD)

Reported / source value
$10.74 (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Used as a large gas turbine / OCGT proxy from the review.

Reference
2024 Energy Technology Cost and Technical Parameter Review (high confidence)
Source recorded 07 Jun 2026
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).

How this was derived
Internal fallback supplied by user, used because no plant-specific fuel contract or market gas price source was located in the retrieved material.
Heat rate GJ/MWh
10.50

Shown in table
$10.50 (2026 real AUD)

How this was derived
Internal fallback supplied by user, used because no plant-specific heat-rate source was located in the retrieved material.

Confidence: medium · Status: ai estimated · Capex basis: default · AI checked 07 Jun 2026

Notes
Plant-specific greenfield capex for Colongra/CG3 was not found in searched owner/government/AEMO sources. O&M and performance values were taken from AEMO/Aurecon 2024 technology review for OCGT-type gas turbines. Colongra is described by Snowy Hydro as a 667 MW facility comprising four dual-fuel open-cycle fast-start gas turbines; the requested DUID CG3 appears to be one unit/share of that station, but no plant-specific construction cost was located.

Sources