Wallgrove Grid Battery project (WALGRV1)

BESS · TransGrid · Storage - Battery

Dispatch stats Financials
Operational AEMO: In Service NSW1 Other - Other NEM data · 7 days
50/75 MW
Registered nameplate capacity / storage
7 days revenue
$5.0k
Capacity factor
-0.9%
Revenue / MWh
—
Est. SRMC
$1.50/MWh

Energy flow

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

Key information
Capacity
50 MW / 75 MWh

AEMO status In Service
Project status Operational (AI)

Transgrid project page / commissioning announcement (2021-12-01).

Region NSW1
Coordinates -33.80300, 150.91100 (AI)

Wallgrove substation / project location in Western Sydney, NSW; approximate site coordinates from public project references.

MLF 1.0015
DUID WALGRV1
Owner TransGrid
Commissioned Dec 2021
Expected closure 2036
Closure date —
Technology Storage - Battery
Fuel Other - Other
Battery OEM Tesla
Battery platform / chemistry Megapack
Inverter OEM Tesla
Inverter / PCS model Megapack inverter/PCS (integrated)
Equipment confidence medium
Stats window
07 Jun 2026 00:50 → 14 Jun 2026 00:50 AEST

Dispatch & revenue

07 Jun 2026 00:50 → 14 Jun 2026 00:50 AEST

Energy revenue (× MLF)
$5.0k
FCAS revenue (× MLF)
$526
FCAS volume
13,575.8 MWh
Dispatched
-77.0 MWh
Available
5,329.2 MWh
Curtailed
5,413.2 MWh
Curtailment
101.6%
of available
MLF used
1.0015
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
2024-09-26 1.0009
2025-07-01 1.0015

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
Battery (BESS)
Capacity
50 MW / 75 MWh
Revenue (× MLF) (stats)
See dispatch stats link above
Est. SRMC
$1.50/MWh
Capex total (greenfield) default
$26.25M

Shown in table
$26.25M (2026 real AUD)
Capex refurbishment
—
Capex / MWh storage default
$350,000

Shown in table
$350.0k (2026 real AUD)
Fixed OPEX (annual)
—
Fixed OPEX / MW-yr default
$25,000

Shown in table
$25.0k (2026 real AUD)
Variable OPEX / MWh default
$1.50

Shown in table
$1.50 (2026 real AUD)
Fuel cost / GJ
—
Heat rate GJ/MWh
—

Confidence: unknown · Status: needs review · Capex basis: unknown