Western Sydney Pumped Hydro Project

Hydro · Zen Energy Retail Pty Ltd · Storage - Pumped hydro

Dispatch stats Financials
Development AEMO: Publicly Announced Hydro - Water NEM data · 24 hours
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Registered nameplate capacity — refresh AI for MW/MWh
Est. SRMC
$1.27/MWh
Key information

Capacity not yet researched — use Refresh equipment & project status (AI).

AEMO status Publicly Announced
Project status Development (AI)

Coordinates —

DUID —
Owner Zen Energy Retail Pty Ltd
Commissioned —
Expected closure —
Closure date —
Technology Storage - Pumped hydro
Fuel Hydro - Water
Turbine OEM —
Turbine type / model —
Stats window
12 Jun 2026 17:10 → 13 Jun 2026 17:10 AEST

Dispatch & revenue

12 Jun 2026 17:10 → 13 Jun 2026 17:10 AEST

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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
Pumped hydro
Capacity
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Revenue (× MLF) (stats)
See dispatch stats link above
Est. SRMC
$1.27/MWh
Capex total (greenfield)
$3,691.98M

Shown in table
$3,691.98M (2026 real AUD)

Reported / source value
$3,500.00M (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Capex refurbishment
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Capex / MWh storage
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Fixed OPEX (annual)
$47.47M

Shown in table
$47.47M (2026 real AUD)

Reported / source value
$45.00M (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fixed OPEX / MW-yr
$47,468

Shown in table
$47.5k (2026 real AUD)

Reported / source value
$45.0k (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Variable OPEX / MWh
$1.27

Shown in table
$1.27 (2026 real AUD)

Reported / source value
$1.20 (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fuel cost / GJ
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Heat rate GJ/MWh
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Confidence: medium · Status: ai estimated · Capex basis: estimated · AI checked 06 Jun 2026

Notes
No owner-reported final project investment figure was found in the searched owner/government sources. The capex value uses AEMO's 2024 pumped hydro cost parameter review estimate for Western Sydney Pumped Hydro (1,000 MW / 8,000 MWh); reported as estimated, not plant-specific reported capex. Project is proposed by ZEN Energy and expected to be developed solely by ZEN, subject to approvals. Construction timing cited by ZEN: could commence in 2027 and be operational by 2031.

Sources