Gladstone (GSTONE3)

Coal · Gladstone Power Station Participants · Turbine - Steam Sub Critical

Dispatch stats Financials
Operational AEMO: In Service QLD1 Fossil - Black Coal NEM data · 30 days
280 MW
Registered nameplate capacity
30 days revenue
$5.11M
Capacity factor
33.1%
Revenue / MWh
$76.52
Est. SRMC
$128.75/MWh

Energy flow

Dispatch target (cleared) vs availability — 5‑minute intervals. QLD1 regional price (RRP) on right axis.

Key information
Capacity
280 MW

AEMO status In Service
Project status Operational (AI)

NRG Gladstone Power Station website (2026): describes Gladstone Power Station as a world-class facility providing customers with safe, reliable electricity and an operating 1,680 MW station.

Region QLD1
Coordinates -23.85070, 151.21930 (AI)

Grokipedia page for Gladstone Power Station cites coordinates approximately 23.8507° S, 151.2193° E for the plant at Callemondah, Gladstone.

MLF 0.9437
DUID GSTONE3
Owner Gladstone Power Station Participants
Commissioned —
Expected closure 2035
Closure date —
Technology Turbine - Steam Sub Critical
Fuel Fossil - Black Coal
Steam turbine OEM Siemens Energy
Turbine / boiler supplier Steam turbine / boiler supplier
Equipment confidence medium
Stats window
15 May 2026 01:10 → 14 Jun 2026 01:10 AEST

Dispatch & revenue

15 May 2026 01:10 → 14 Jun 2026 01:10 AEST

Energy revenue (× MLF)
$5.11M
FCAS revenue (× MLF)
$21
FCAS volume
55.0 MWh
Dispatched
66,776.9 MWh
Available
112,607.5 MWh
Curtailed
46,697.6 MWh
Curtailment
41.5%
of available
MLF used
0.9437
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 0.9410
2025-07-01 0.9437

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
Black coal
Capacity
280 MW
Revenue (× MLF) (stats)
See dispatch stats link above
Est. SRMC
$128.75/MWh
Capex total (greenfield)
$1,155.60M

Shown in table
$1,155.60M (2026 real AUD)

Reported / source value
$508.00M (1976 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
Gladstone Power Station (low confidence)
Source recorded 07 Jun 2026
Capex refurbishment
$108.65M

Shown in table
$108.65M (2026 real AUD)

Reported / source value
$42.00M (1988 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Owner/operator history page describing a major refurbishment cost.

Reference
History of Gladstone Power Station (medium confidence)
Source recorded 07 Jun 2026
Capex / MW derived
$4,127,131

Shown in table
$4.13M (2026 real AUD)

Reported / source value
$1.81M (1976 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fixed OPEX (annual)
$35.67M

Shown in table
$35.67M (2026 real AUD)

Reported / source value
$15.68M (1976 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fixed OPEX / MW-yr
$127,389

Shown in table
$127.4k (2026 real AUD)

Reported / source value
$56.0k (1976 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
AEMO/GHD benchmark fixed O&M for large sub-critical black coal.

Reference
2025 Energy Technology Cost and Technical Parameter Review (high confidence)
Source recorded 07 Jun 2026
Variable OPEX / MWh
$18.20

Shown in table
$18.20 (2026 real AUD)

Reported / source value
$8.00 (1976 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
AEMO/GHD benchmark variable O&M for large sub-critical black coal.

Reference
2025 Energy Technology Cost and Technical Parameter Review (high confidence)
Source recorded 07 Jun 2026
Fuel cost / GJ
$10.24

Shown in table
$10.24 (2026 real AUD)

Reported / source value
$4.50 (1976 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Server-side fallback default supplied by user instructions; no plant-specific fuel contract price was retrieved.
Heat rate GJ/MWh
10.80

Shown in table
$10.80 (2026 real AUD)

How this was derived
Server-side fallback default supplied by user instructions; no plant-specific heat-rate excerpt was retrieved.

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

Notes
Gladstone Power Station was built by the Queensland Government and first commenced operation in 1976. A $42 million refurbishment program was completed in October 1988. No plant-specific greenfield investment figure from the owner/developer was found in the search results, so the reported construction cost from secondary sources was used for capex. O&M and performance inputs use AEMO/GHD black coal sub-critical benchmark values or server-side fallback where not explicitly visible in the retrieved excerpt.

Sources