Other Generators · Origin Energy Mt Stuart · Turbine - OCGT
Dispatch target (cleared) vs availability — 5‑minute intervals. QLD1 regional price (RRP) on right axis.
14 Jun 2026 00:00 → 14 Jun 2026 03:20 AEST
Estimated $ per interval — energy (RRP) and FCAS (regional FCAS prices), both × MLF.
UNIT_SOLUTION (5‑minute intervals). Intervention intervals excluded.dispatch_price RRP matched by settlement time and NEM region (from generator registry).DISPATCHLOAD (raise/lower 6s, 60s, 5min, reg) × (5/60 h) × regional FCAS price × MLF. Volume is total FCAS enablement MWh across services.| Effective from | MLF |
|---|---|
| 2024-07-01 | 0.9471 |
| 2025-07-01 | 0.9121 |
| Capex total (greenfield) |
$146.50M
Shown in table Reported / source value How this was derived Reference |
|---|---|
| Capex refurbishment |
—
|
| Capex / MW derived |
$1,003,403
Shown in table Reported / source value How this was derived Reference |
| Fixed OPEX (annual) |
$9.25M
Shown in table Reported / source value |
| Fixed OPEX / MW-yr |
$63,376
Shown in table Reported / source value How this was derived Reference |
| Variable OPEX / MWh |
$7.45
Shown in table Reported / source value How this was derived Reference |
| Fuel cost / GJ default |
$12.00
Shown in table |
| Heat rate GJ/MWh |
11.75
Shown in table How this was derived Reference |
Confidence: medium · Status: ai estimated · Capex basis: reported · AI checked 04 Jun 2026
Notes
Mt Stuart is an Origin peaking power station in Townsville. A Queensland Government statement reported Origin would invest $92 million in a new 126 MW turbine generator at Mt Stuart; this is treated here as the plant-specific brownfield expansion cost rather than a full greenfield build cost. Mt Stuart is described by Origin as operational since 1999 and uses an open-cycle gas turbine system fuelled by extra low sulphur diesel. O&M and heat-rate assumptions are benchmark-based proxies for an OCGT asset; no site-specific O&M or diesel price was found in the search results.