Brown Mountain is a 5 MW hydro power plant in New South Wales, Australia. It is operated by Eraring Energy. Based on reported annual generation of 2 GWh, it can supply roughly 542 homes. It ranks #431 of 536 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 AUS0000269.
Data status
Known data
Calculated from dataset
Not available
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Data provenance
Capacity and fuel are the upstream open-dataset record, not yet matched to a 2026 registry or GEM entry.
capacity: WRI GPPD; fuel: WRI GPPD
In context: how this plant compares
At 5 MW, Brown Mountain is below the median hydro plant in Australia (45 MW). Hydropower converts the energy of falling or flowing water into electricity; output depends on rainfall and reservoir level, and large dams also provide grid balancing and storage.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Key facts
- Load factor
- 4%, from 2 GWh of reported generation; the median for 50 hydro plants in Australia that report generation is 35%
- Share of Australia hydro capacity
- less than 0.1% of 8,878 MW across 73 plants in this dataset
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Reported generation trend
Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by Eraring Energy.
Local climate & thermal context
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 36.6°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 32% below 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: 37/100 — this site sits in the mid third of the power plants we cover by heating degree-days.
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.
Site climate & environmental severity
This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.
Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.
How it compares & nearby plants
The #62 largest hydro power plant of 73 in Australia by capacity.
Australia has 73 hydro power plants in this dataset, together about 8,878 MW of capacity.
Nearby power plants
- Boco Rock · Wind · 113 MW · New South Wales
- Jindabyne Dam Mini Hydro · Hydro · 1.1 MW · New South Wales
- Guthega · Hydro · 60 MW · New South Wales
- Williamsdale · Solar · 11.1 MW · Australian Capital Territory
- Murray 1 · Hydro · 950 MW · New South Wales
- Tumut 1 (Upper Tumut) · Hydro · 616 MW · New South Wales
Location
Coordinates -36.5951, 149.474 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Brown Mountain?
Brown Mountain is a 5 MW hydro power plant in New South Wales, Australia.
How much electricity does Brown Mountain generate?
Brown Mountain generates about 2 GWh of electricity per year.
Who operates Brown Mountain?
Brown Mountain is operated by Eraring Energy.