Bayswater (BW01)

Coal · AGL Macquarie Pty Limited · Turbine - Steam Sub Critical

Dispatch stats Financials
Operational AEMO: In Service NSW1 Fossil - Black Coal NEM data · 7 days
660 MW
Registered nameplate capacity
7 days revenue
$8.21M
Capacity factor
87.0%
Revenue / MWh
$85.11
Est. SRMC
$53.57/MWh

Energy flow

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

Key information
Capacity
660 MW

AEMO status In Service
Project status Operational (AI)

AGL/Wikipedia notes Bayswater is an in-service operating coal station, with AGL planning closure in 2033.

Region NSW1
Coordinates -32.21859, 151.05131 (AI)

Bonzle / Global Energy Monitor place Bayswater Power Station in the Upper Hunter near Muswellbrook, NSW.

MLF 0.9623
DUID BW01
Owner AGL Macquarie Pty Limited
Commissioned —
Expected closure 2033
Closure date —
Technology Turbine - Steam Sub Critical
Fuel Fossil - Black Coal
Steam turbine OEM Toshiba
Turbine / boiler supplier Steam turbines / boiler island supplier
Equipment confidence high
Stats window
18 Sep 2026 04:35 → 25 Sep 2026 04:35 AEST

Dispatch & revenue

18 Sep 2026 04:35 → 25 Sep 2026 04:35 AEST

Energy revenue (× MLF)
$8.21M
FCAS revenue (× MLF)
$849
FCAS volume
716.4 MWh
Dispatched
96,473.1 MWh
Available
110,612.5 MWh
Curtailed
14,364.3 MWh
Curtailment
13.0%
of available
MLF used
0.9623
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.
  • State of charge — INITIAL_ENERGY_STORAGE (MWh at interval start) from UNIT_SOLUTION, published for bidirectional/storage units. Next-day data — the SOC line lags real time by up to a day.
  • 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 0.9664
2025-07-01 0.9637
2026-07-01 0.9623

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
660 MW
Revenue (× MLF) (stats)
See dispatch stats link above
Est. SRMC
$53.57/MWh
Capex total (greenfield)
$3,190.61M

Shown in table
$3,190.61M (2026 real AUD)

Reported / source value
$2,310.00M (2016 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Brownfield control-system upgrade, not greenfield capex.

Reference
$63 million control system project for AGL Macquarie (medium confidence)
Source recorded 05 Jun 2026
Capex refurbishment
—

How this was derived
Reported upgrade/maintenance expenditure; treated as brownfield rather than capex_total.

Reference
Bayswater Power Station upgrade secures additional energy supply for NSW (medium confidence)
Source recorded 05 Jun 2026
Capex / MW derived
$4,834,254

Shown in table
$4.83M (2026 real AUD)

Reported / source value
$3.50M (2016 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fixed OPEX (annual)
$25.5k

Shown in table
$25.5k (2026 real AUD)

Reported / source value
$18.5k (2016 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fixed OPEX / MW-yr
$39

Shown in table
$38.67 (2026 real AUD)

Reported / source value
$28.00 (2016 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Used the large sub-critical black coal no-CCS fixed O&M benchmark.

Reference
2025 Energy Technology Cost and Technical Parameter Review (high confidence)
Source recorded 05 Jun 2026
Variable OPEX / MWh
$11.05

Shown in table
$11.05 (2026 real AUD)

Reported / source value
$8.00 (2016 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Used the large sub-critical black coal no-CCS variable O&M benchmark.

Reference
2025 Energy Technology Cost and Technical Parameter Review (high confidence)
Source recorded 05 Jun 2026
Fuel cost / GJ default
$4.50

Shown in table
$4.50 (2026 real AUD)
Heat rate GJ/MWh
9.45

Shown in table
$9.45 (2026 real AUD)

How this was derived
AEMO heat-rate data lists Bayswater at 9.45 GJ/MWh static heat rate.

Reference
Heat rates Encapsulates the efficiency of thermal generators (high confidence)
Source recorded 05 Jun 2026

Confidence: medium · Status: ai estimated · Capex basis: default · AI checked 05 Jun 2026

Notes
Capex remains unverified for original construction cost; no authoritative plant-specific greenfield capex located in the search set. The site is an existing subcritical black coal station commissioned in 1985-86. The $63 million, $70 million, and >$200 million figures identified are refurbishment/upgrade expenditures, not original build capex. Heat-rate input is taken from AEMO heat-rate data for Bayswater; the implied efficiency is calculated as 3.6 / 9.45 = 35.9% (HHV basis).

Sources