Cethana (CETHANA)

Hydro · Hydro-Electric Corporation · Hydro - Dam

Dispatch stats Financials
Operational AEMO: In Service TAS1 Hydro - Water NEM data · 314h
85 MW
Registered nameplate capacity
314h revenue
$964.6k
Capacity factor
45.4%
Revenue / MWh
$79.59
Est. SRMC
$1.09/MWh

Energy flow

Dispatch target (cleared) vs availability — 5‑minute intervals. TAS1 regional price (RRP) on right axis.

Key information
Capacity
85 MW

AEMO status In Service
Project status Operational (AI)

Power Technology 2024: Cethana was commissioned in 1971 and is currently active.

Region TAS1
Coordinates -41.47970, 146.13390 (AI)

Wikidata / Wikipedia coordinates for Cethana Power Station (41°28'46.9"S, 146°8'2.4"E).

MLF 0.9473
DUID CETHANA
Owner Hydro-Electric Corporation
Commissioned —
Expected closure 2100
Closure date —
Technology Hydro - Dam
Fuel Hydro - Water
Turbine OEM Fuji
Turbine type / model Francis turbine
Equipment confidence high
Stats window
01 Jun 2026 00:00 → 14 Jun 2026 02:20 AEST

Dispatch & revenue

01 Jun 2026 00:00 → 14 Jun 2026 02:20 AEST

Energy revenue (× MLF)
$964.6k
FCAS revenue (× MLF)
$8.4k
FCAS volume
3,291.8 MWh
Dispatched
12,119.2 MWh
Available
27,673.4 MWh
Curtailed
15,615.1 MWh
Curtailment
56.4%
of available
MLF used
0.9473
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 0.9580
2025-07-01 0.9473

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
85 MW
Revenue (× MLF) (stats)
See dispatch stats link above
Est. SRMC
$1.09/MWh
Capex total (greenfield)
$2,663.93M

Shown in table
$2,663.93M (2026 real AUD)

Reported / source value
$2,600.00M (2025 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).

How this was derived
Owner-published project fact sheet gives the estimated total project cost for Cethana.

Reference
Fact Sheet - A new era of hydropower at Cethana (high confidence)
Source recorded 06 Jun 2026
Capex refurbishment
—
Capex / MWh storage
—
Fixed OPEX (annual)
—
Fixed OPEX / MW-yr default
$45,000

Shown in table
$45.0k (2026 real AUD)
Variable OPEX / MWh
$1.09

Shown in table
$1.09 (2026 real AUD)

Reported / source value
$1.00 (2023 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fuel cost / GJ
—
Heat rate GJ/MWh
—

Confidence: high · Status: ai estimated · Capex basis: reported · AI checked 06 Jun 2026

Notes
Hydro Tasmania’s July 2025 fact sheet states the estimated cost of the Cethana Pumped Hydro Project is $2.6 billion in CY2023 real dollars; treated here as the project’s reported cost basis and expressed in nominal-source-year terms for the schema. The project is proposed at 750 MW and 20 hours storage, so implied capex/MW is calculated from the reported total. No verified plant-specific O&M or commissioned operating data were found in the provided search results.

Sources