Torrens Island B (TORRB2)

Gas Baseload · AGL SA Generation Pty Limited · Turbine - Steam Sub Critical

Dispatch stats Financials
Closed AEMO: In Service - Announced Withdrawal (Permanent) SA1 Fossil - Natural Gas Pipeline NEM data · 24 hours
200 MW
Registered nameplate capacity
24 hours revenue
$-4.4k
Capacity factor
13.8%
Revenue / MWh
$-6.68
Est. SRMC
$5.47/MWh

Energy flow

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

Key information
Capacity
200 MW

AEMO status In Service - Announced Withdrawal (Permanent)
Project status Closed (AI)

AEMO registration label provided by user indicates 'In Service - Announced Withdrawal (Permanent)' for TORRB2, consistent with permanent withdrawal/closure.

Region SA1
Coordinates —

MLF 0.9992
DUID TORRB2
Owner AGL SA Generation Pty Limited
Commissioned —
Expected closure 2026
Closure date 30 Jun 2026
Technology Turbine - Steam Sub Critical
Fuel Fossil - Natural Gas Pipeline
Equipment OEM —
Equipment type / model Steam turbine - subcritical (model not publicly identified)
Equipment confidence low
Stats window
12 Jun 2026 13:30 → 13 Jun 2026 13:30 AEST

Dispatch & revenue

12 Jun 2026 13:30 → 13 Jun 2026 13:30 AEST

Energy revenue (× MLF)
$-4.4k
FCAS revenue (× MLF)
$0
FCAS volume
— MWh
Dispatched
664.6 MWh
Available
2,916.7 MWh
Curtailed
2,333.3 MWh
Curtailment
80.0%
of available
MLF used
0.9992
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 0.9998
2025-07-01 0.9992

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
Other
Capacity
200 MW
Revenue (× MLF) (stats)
See dispatch stats link above
Est. SRMC
$5.47/MWh
Capex total (greenfield)
$467.29M

Shown in table
$467.29M (2026 real AUD)

Reported / source value
$400.00M (2022 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Owner source confirms commissioning year but does not state original capex.

Reference
Torrens Island ‘B’ Power Station to close in 2026 (medium confidence)
Source recorded 06 Jun 2026
Capex refurbishment
$41.67M

Shown in table
$41.67M (2026 real AUD)

Reported / source value
$32.00M (2019 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
This is a brownfield refurbishment/overhaul, not greenfield capex.

Reference
AGL invests $32 million at Torrens Island to improve reliability and safety (high confidence)
Source recorded 06 Jun 2026
Capex / MW derived
$2,336,449

Shown in table
$2.34M (2026 real AUD)

Reported / source value
$2.00M (2022 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fixed OPEX (annual)
$15.15M

Shown in table
$15.15M (2026 real AUD)

Reported / source value
$12.97M (2022 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fixed OPEX / MW-yr
$75,761

Shown in table
$75.8k (2026 real AUD)

Reported / source value
$64.9k (2022 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Used as benchmark for comparable gas-fired thermal generation.

Reference
2024 Energy Technology Cost and Technical Parameter Review (medium confidence)
Source recorded 06 Jun 2026
Variable OPEX / MWh
$5.47

Shown in table
$5.47 (2026 real AUD)

Reported / source value
$4.68 (2022 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Used as benchmark for comparable gas-fired thermal generation; fuel excluded.

Reference
2024 Energy Technology Cost and Technical Parameter Review (medium confidence)
Source recorded 06 Jun 2026
Fuel cost / GJ
$12.65

Shown in table
$12.65 (2026 real AUD)

Reported / source value
$10.83 (2022 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Used only as a proxy for gas fuel economics because no plant-specific fuel contract price was found.

Reference
East coast wholesale electricity prices fall, while peak demand record set in WA (low confidence)
Source recorded 06 Jun 2026
Heat rate GJ/MWh
8.79

Shown in table
$8.79 (2026 real AUD)

How this was derived
Benchmark thermal efficiency for gas fuel operation was 40.9% HHV net, implying 8.79 GJ/MWh.

Reference
2024 Energy Technology Cost and Technical Parameter Review (medium confidence)
Source recorded 06 Jun 2026

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

Notes
Torrens Island B commenced operations in 1976 and the four remaining units were announced for retirement on 30 June 2026; however, no reliable plant-specific original greenfield construction cost was found in the searched owner/government sources. The $32 million figure is a 2019 overhaul/refurbishment for B3 and is recorded separately. O&M and technical parameters were inferred from AEMO/Aurecon gas turbine benchmarks for comparable gas-fired thermal plant, with fuel price proxied from AEMO east coast wholesale gas market data rather than a contract price. Emissions intensity was not set from a source because the requested normalized type is 'other' and the plant-specific benchmark searched did not provide a direct plant-specific value.

Sources