Quarantine (QPS5)

Gas Peakers · Origin Energy Power Limited · Turbine - OCGT

Dispatch stats Financials
Operational AEMO: In Service SA1 Fossil - Natural Gas Pipeline NEM data · 24 hours
128 MW
Registered nameplate capacity
24 hours revenue
$0
Capacity factor
0.0%
Revenue / MWh
—
Est. SRMC
$209.05/MWh

Energy flow

Dispatch target (cleared) vs availability — 5‑minute intervals. SA1 regional price (RRP) on right axis.

Key information
Capacity
128 MW

AEMO status In Service
Project status Operational (AI)

Region SA1
MLF 0.9957
DUID QPS5
Owner Origin Energy Power Limited
Commissioned —
Expected closure 2025-07-02
Closure date —
Technology Turbine - OCGT
Fuel Fossil - Natural Gas Pipeline
Gas turbine OEM GE Energy
Turbine / engine model 9E
Equipment confidence high
Stats window
04 Jun 2026 04:15 → 05 Jun 2026 04:15 AEST

Dispatch & revenue

04 Jun 2026 04:15 → 05 Jun 2026 04:15 AEST

Revenue (× MLF)
$0
Dispatched
— MWh
Available
— MWh
Curtailed
— MWh
Curtailment
—
of available
MLF used
0.9957
end of period

Revenue (× MLF)

Estimated $ per interval using regional RRP and MLF effective on each day.

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).
  • Revenue (× MLF) — cleared MW × (5/60 h) × RRP × MLF. Chart uses MLF effective on each interval’s date; summary total uses MLF as at the end of the selected period (same as the revenue list).
  • 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 0.9949
2025-07-01 0.9957

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
128 MW
Revenue (× MLF) (stats)
See dispatch stats link above
Est. SRMC
$209.05/MWh
Capex total (greenfield)
$155.04M

Shown in table
$155.04M (2026 real AUD)

Reported / source value
$80.00M (2001 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Official parliamentary record stating Origin’s original Quarantine construction investment was $80 million in 2001.

Reference
House of Assembly Hansard, 24 July 2007 (high confidence)
Source recorded 04 Jun 2026
Capex refurbishment
$132.45M

Shown in table
$132.45M (2026 real AUD)

Reported / source value
$80.00M (2007 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Official parliamentary record of Quarantine expansion cost and size.

Reference
House of Assembly Hansard, 24 July 2007 (high confidence)
Source recorded 04 Jun 2026
Capex / MW derived
$1,211,240

Shown in table
$1.21M (2026 real AUD)

Reported / source value
$625.0k (2001 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fixed OPEX (annual)
$9.54M

Shown in table
$9.54M (2026 real AUD)

Reported / source value
$5.76M (2007 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fixed OPEX / MW-yr
$74,503

Shown in table
$74.5k (2026 real AUD)

Reported / source value
$45.0k (2007 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Used as benchmark fallback for OCGT fixed O&M; exact line for large GT fixed O&M not directly extracted in the available snippet, but report is the official benchmark source.

Reference
2024 Energy Technology Cost and Technical Parameter Review (medium confidence)
Source recorded 04 Jun 2026
Variable OPEX / MWh
$22.83

Shown in table
$22.83 (2026 real AUD)

Reported / source value
$13.79 (2007 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Benchmark variable O&M figure from the official AEMO/Aurecon review.

Reference
2024 Energy Technology Cost and Technical Parameter Review (medium confidence)
Source recorded 04 Jun 2026
Fuel cost / GJ
$19.87

Shown in table
$19.87 (2026 real AUD)

Reported / source value
$12.00 (2007 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
No plant-specific gas supply/fuel contract cost found in search results.
Heat rate GJ/MWh
9.37

Shown in table
$9.37 (2026 real AUD)

How this was derived
Used the large gas turbine benchmark heat rate.

Reference
2024 Energy Technology Cost and Technical Parameter Review (high confidence)
Source recorded 04 Jun 2026

Confidence: medium · Status: ai estimated · Capex basis: reported · AI checked 04 Jun 2026

Notes
Plant-specific greenfield investment figure found in South Australian parliamentary Hansard: Origin Energy announced $80 million for construction of Quarantine Power Station in 2001, and a further ~$80 million expansion for an additional 120 MW generator. Because the user’s DUID QPS5 is the 128 MW unit, the original $80 million construction figure is used for capex_total_aud. The expansion figure is recorded separately as refurbishment/expansion, though it is effectively brownfield capacity addition rather than greenfield build. OCGT operating assumptions use AEMO/Aurecon 2024 benchmark values for large GTs; fuel cost remains fallback/default because no project-specific gas supply cost was found.

Sources