Tumut 3 (TUMUT3)

Hydro · Snowy Hydro Ltd · Hydro - Dam

Dispatch stats Financials
Operational AEMO: In Service NSW1 Hydro - Water NEM data · 24 hours
1,500 MW
Registered nameplate capacity
24 hours revenue
$21.7k
Capacity factor
1.3%
Revenue / MWh
$44.63
Est. SRMC
$1.05/MWh

Energy flow

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

Key information
Capacity
1,500 MW

AEMO status In Service
Project status Operational (AI)

Snowy Hydro scheme page and Tumut 3 facility page describe Tumut 3 as an existing power station in the Snowy Scheme with six units; it is in full commercial service.

Region NSW1
Coordinates -35.61120, 148.29170 (AI)

Global Energy Observatory lists Tumut-3 Pumped Storage Hydroelectric Power Plant at Talbingo, NSW with coordinates -35.6112, 148.2917.

MLF 0.9144
DUID TUMUT3
Owner Snowy Hydro Ltd
Commissioned —
Expected closure 2070
Closure date —
Technology Hydro - Dam
Fuel Hydro - Water
Turbine OEM Snowy Hydro
Turbine type / model 6 x 250 MW pumped-storage hydro turbines/generators
Equipment confidence low
Stats window
13 Jun 2026 00:00 → 13 Jun 2026 23:59 AEST

Dispatch & revenue

13 Jun 2026 00:00 → 13 Jun 2026 23:59 AEST

Energy revenue (× MLF)
$21.7k
FCAS revenue (× MLF)
$34
FCAS volume
259.3 MWh
Dispatched
485.8 MWh
Available
35,825.7 MWh
Curtailed
35,339.8 MWh
Curtailment
98.6%
of available
MLF used
0.9144
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 0.8988
2025-07-01 0.9144

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
1,500 MW
Revenue (× MLF) (stats)
See dispatch stats link above
Est. SRMC
$1.05/MWh
Capex total (greenfield)
—
Capex refurbishment
—
Capex / MWh storage
$210,970

Shown in table
$211.0k (2026 real AUD)

Reported / source value
$200.0k (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fixed OPEX (annual)
—
Fixed OPEX / MW-yr default
$45,000

Shown in table
$45.0k (2026 real AUD)
Variable OPEX / MWh
$1.05

Shown in table
$1.05 (2026 real AUD)

Reported / source value
$1.00 (2024 nominal)
Adjusted to 2026 real AUD using Australian CPI (All Groups).
Fuel cost / GJ
—
Heat rate GJ/MWh
—

Confidence: medium · Status: ai estimated · Capex basis: default · AI checked 06 Jun 2026

Notes
Snowy Hydro sources confirm Tumut 3 is a pumped-storage hydro station, first opened in the 1970s and upgraded in 2012, but no plant-specific original greenfield construction cost was found in the searched official sources. Because Tumut 3 predates readily available project-cost disclosures and the searches did not return a reported total investment figure, capex fields are left blank rather than estimated. Existing value in the station factsheet indicates 1,800 MW generating capacity and completion in 1973, with upgrade in 2012. The schema's requested normalised type 'hydro' maps most closely to pumped_hydro for Tumut 3.

Sources

  • financial_profile.asset_life_years (low)
  • financial_profile.capex_basis (high)
  • financial_profile.capex_total_aud (low)
  • financial_profile.capex_year (low)
  • financial_profile.emissions_intensity_tco2_mwh (high)
  • financial_profile.fixed_opex_per_mw_year_aud (low)
  • financial_profile.generator_type_normalised — The Snowy Scheme (high)
  • financial_profile.variable_opex_per_mwh_aud (high)
  • generator_identity.duid (high)
  • generator_identity.fuel_type — The Snowy Scheme (high)
  • generator_identity.owner — The Snowy Scheme (high)
  • generator_identity.region — The Snowy Scheme (medium)
  • generator_identity.site_name — Tumut 3 Power Station & Talbingo Dam (high)
  • generator_identity.technology_type — Turbines & power generation (high)