Dispatch target (cleared) vs availability — 5‑minute intervals. NSW1 regional price (RRP) on right axis.
06 Jun 2026 20:50 → 13 Jun 2026 20:50 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 | 0.9828 |
| 2025-07-01 | 0.9849 |
| Capex total (greenfield) |
$786.16M
Shown in table Reported / source value How this was derived Reference |
|---|---|
| Capex refurbishment |
—
|
| Capex / MW derived |
$4,343,445
Shown in table Reported / source value |
| Fixed OPEX (annual) |
$9.39M
Shown in table Reported / source value |
| Fixed OPEX / MW-yr |
$51,887
Shown in table Reported / source value How this was derived Reference |
| Variable OPEX / MWh |
$12.74
Shown in table Reported / source value How this was derived Reference |
| Fuel cost / GJ |
$18.87
Shown in table Reported / source value |
| Heat rate GJ/MWh |
9.77
Shown in table How this was derived Reference |
Confidence: medium · Status: ai estimated · Capex basis: reported · AI checked 06 Jun 2026
Notes
Colongra Power Station was commissioned in 2009 and acquired by Snowy Hydro in 2015. The reported capital cost found in a contemporaneous source is A$500 million; this appears to refer to the original greenfield build of the 667 MW station. Fixed O&M was not found as a plant-specific disclosed value, so an AEMO/Aurecon OCGT benchmark was used. Heat rate and variable O&M were taken from the AEMO/Aurecon 2024 Energy Technology Cost and Parameters Review for large GTs / OCGT-type plant. Emissions intensity is a fallback default. Capacity used for per-MW calculations is 667 MW for the whole station, not the DUID subtotal.