Hunter EconomicZone (HEZ1)

Other Generators · Snowy Hydro Ltd · Reciprocating Engine - Compression ignition

Dispatch stats Financials
Construction AEMO: In Service NSW1 Fossil - Diesel NEM data · 24 hours
21 MW
Registered nameplate capacity
24 hours revenue
$0
Capacity factor
0.0%
Revenue / MWh
—
Est. SRMC
$308.00/MWh

Energy flow

Dispatch target (cleared) vs availability — 5‑minute intervals. NSW1 regional price (RRP) on right axis.

Key information
Capacity
21 MW

AEMO status In Service
Project status Construction (AI)

UGL project page / Snowy Hydro Hunter Power Project, 2024

Region NSW1
Coordinates -32.78900, 151.48800 (AI)

Snowy Hydro Hunter Power Project / Kurri Kurri, NSW (Snowy Hydro site page; location near HEZ)

MLF 0.9931
DUID HEZ1
Owner Snowy Hydro Ltd
Commissioned —
Expected closure 2036
Closure date —
Technology Reciprocating Engine - Compression ignition
Fuel Fossil - Diesel
Engine OEM Wärtsilä
Engine model Wärtsilä 20V34SG
Equipment confidence medium
Stats window
13 Jun 2026 06:10 → 14 Jun 2026 06:10 AEST

Dispatch & revenue

13 Jun 2026 06:10 → 14 Jun 2026 06:10 AEST

Energy revenue (× MLF)
$0
FCAS revenue (× MLF)
$0
FCAS volume
— MWh
Dispatched
— MWh
Available
441.7 MWh
Curtailed
441.7 MWh
Curtailment
100.0%
of available
MLF used
0.9931
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 0.9896
2025-07-01 0.9931

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
Diesel
Capacity
21 MW
Revenue (× MLF) (stats)
See dispatch stats link above
Est. SRMC
$308.00/MWh
Capex total (greenfield)
$32.91M

Shown in table
$32.91M (2026 real AUD)

Reported / source value
$31.20M (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Capex refurbishment
—
Capex / MW derived
$1,582,278

Shown in table
$1.58M (2026 real AUD)

Reported / source value
$1.50M (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fixed OPEX (annual)
—
Fixed OPEX / MW-yr default
$60,000

Shown in table
$60.0k (2026 real AUD)
Variable OPEX / MWh default
$8.00

Shown in table
$8.00 (2026 real AUD)
Fuel cost / GJ default
$25.00

Shown in table
$25.00 (2026 real AUD)
Heat rate GJ/MWh default
12.00

Shown in table
$12.00 (2026 real AUD)

Confidence: low · Status: ai estimated · Capex basis: default · AI checked 08 Jun 2026

Notes
Searches did not identify a project-specific construction/investment cost for HEZ1; therefore no capex was populated. Also did not identify reliable plant-specific operating assumptions. The only usable official material found was generic AEMO technology context for reciprocating engines and Snowy Hydro pages on its gas/diesel portfolio. Further review should target Snowy Hydro annual reports, asset registers, planning documents, and any NSW/AEMO connection papers specifically naming Hunter EconomicZone / HEZ1.

Sources