Hallett 4 North Brown Hill (NBHWF1)

Wind · Brown Hill North Pty Ltd · Wind Turbine - Onshore

Dispatch stats Financials
Operational AEMO: In Service SA1 Wind - Wind NEM data · 24 hours
132 MW
Registered nameplate capacity
24 hours revenue
$-3.1k
Capacity factor
54.2%
Revenue / MWh
$-1.81
Est. SRMC
$0.80/MWh

Energy flow

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

Key information
Capacity
132 MW

AEMO status In Service
Project status Operational (AI)

APA Group wind farm page (2011 operational since) / Wind Prospect project page (operating).

Region SA1
Coordinates -33.31392, 138.70817 (AI)

The Wind Power listing for Hallett Hill I / Brown Hill locality coordinates; used as nearest published site-area coordinates for the Hallett wind farm complex.

MLF 0.9579
DUID NBHWF1
Owner Brown Hill North Pty Ltd
Commissioned —
Expected closure 2036
Closure date —
Technology Wind Turbine - Onshore
Fuel Wind - Wind
Turbine OEM Suzlon
Turbine model S88-2.1MW
Equipment confidence high
Stats window
12 Jun 2026 00:00 → 12 Jun 2026 23:59 AEST

Dispatch & revenue

12 Jun 2026 00:00 → 12 Jun 2026 23:59 AEST

Energy revenue (× MLF)
$-3.1k
FCAS revenue (× MLF)
$0
FCAS volume
— MWh
Dispatched
1,720.9 MWh
Available
2,719.5 MWh
Curtailed
998.6 MWh
Curtailment
36.7%
of available
MLF used
0.9579
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 0.9467
2025-07-01 0.9579

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
Wind (onshore)
Capacity
132 MW
Revenue (× MLF) (stats)
See dispatch stats link above
Est. SRMC
$0.80/MWh
Capex total (greenfield)
$531.85M

Shown in table
$531.85M (2026 real AUD)

Reported / source value
$334.00M (2008 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Secondary source reports a slightly higher forecast development cost; retained only as supporting context.

Reference
AGL constructs 132 MW Hallett 4 windfarm in South Australia (medium confidence)
Source recorded 08 Jun 2026
Capex refurbishment
—
Capex / MW derived
$4,020,009

Shown in table
$4.02M (2026 real AUD)

Reported / source value
$2.52M (2008 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Per-MW capex calculated from reported total cost and registered capacity.

Reference
North Brown Hill Wind Farm (high confidence)
Source recorded 08 Jun 2026
Fixed OPEX (annual)
$11.59M

Shown in table
$11.59M (2026 real AUD)

Reported / source value
$7.28M (2008 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fixed OPEX / MW-yr
$87,580

Shown in table
$87.6k (2026 real AUD)

Reported / source value
$55.0k (2008 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
No plant-specific O&M source found in search results; used provided fallback default.
Variable OPEX / MWh
$0.80

Shown in table
$0.80 (2026 real AUD)

Reported / source value
$0.50 (2008 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
No plant-specific variable O&M source found in search results; used provided fallback default.
Fuel cost / GJ
—
Heat rate GJ/MWh
—

Confidence: medium · Status: ai estimated · Capex basis: reported · AI checked 08 Jun 2026

Notes
Project identified as North Brown Hill Wind Farm / Hallett 4. A project-specific reported total cost of A$334 million was found in an owner/operator source, and an additional secondary source reported A$341 million forecast development cost. The A$334 million figure was used as the reported greenfield capex. No refurbishment cost identified. O&M and performance fields use server fallback where plant-specific values were not found.

Sources