Jounama is a 14 MW hydro power plant in New South Wales, Australia. It is operated by Snowy Hydro Ltd. Based on its capacity (estimated), it can supply roughly 14,016 homes (estimated). It ranks #340 of 512 Australia power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 4.3% of Australia's electricity; the national grid averages 525 gCO₂/kWh (38.6% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id AUS0000038.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Operated by Snowy Hydro Ltd. All plants by this company →
This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a temperate oceanic climate (Köppen Cfb) — Southern Hemisphere, latitude 35.6°S — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 28% above the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.
Climate heat-demand index: 66/100 — this site sits in the mid third of the power plants we cover by heating degree-days.
In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.
Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.
The #51 largest hydro power plant of 73 in Australia by capacity.
Australia has 73 hydro power plants in this dataset, together about 8,521 MW of capacity.
Coordinates -35.562, 148.3055 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
