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Roy Hill — Australia

Oil power plant in Western Australia, Australia. Approximate location -22.4812, 119.9472.

OilWestern AustraliaAustralia

Roy Hill is a 6 MW oil power plant in Western Australia, Australia. It is operated by Alinta Energy. Based on its capacity (estimated), it can supply roughly 4.5k homes (estimated). It ranks #425 of 536 Australia power plants by installed capacity. In context, oil supplies about 2.2% of Australia's electricity; the national grid averages 525 gCO₂/kWh (38.6% low-carbon) (2025).

6MW installed capacity
4,505homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id AUS0000490.

Data status

Known data

FacilityRoy Hill WRI
CountryAustralia · Western Australia WRI
Coordinates-22.4812, 119.9472 WRI
FuelOil WRI
MW installed capacity6 MW WRI GPPD; source record
OwnerAlinta Energy WRI

Calculated from dataset

CO₂ emissions11,826 t CO₂·a⁻¹ calculated
Capacity rank in country#425 / 536 calculated
Fuel-specific rank in country#24 / 46 calculated
Capacity vs country/fuel peers0.70× · 8.6 MW · n=46 calculated
Homes-powered equivalent4,505 calculated
Climate25.3°C · HDD 72 derived from coordinates
Environmental severityC1 · 44/100 derived from coordinates

Not available

CommissionedNot available not in dataset
TechnologyNot available not in dataset
GWh reported / yrNot available not in dataset

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 6 MW, Roy Hill is below the median oil plant in Australia (8.6 MW). Oil-fired plants burn heavy fuel oil or diesel, usually as peaking or backup capacity on islands and grids without gas pipelines; high fuel cost keeps their utilisation low.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Key facts

Share of Australia oil capacity
0.4% of 1,605 MW across 46 plants in this dataset

Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).

Capacity vs largest oil plants in Australia

Mount Stuart: 423 MW423Mount Stua…Solomon Hub mine power station: 136 MW136Solomon Hu…GOVE PENINSULA: 120 MW120GOVE PENIN…HEZ Energy Peaking Power Plant: 120 MW120HEZ Energy…SA GAS TURBINES: 120 MW120SA GAS TUR…Port Lincoln: 74 MW74Port Linco…Port Stanvac: 65 MW65Port Stanv…West Kalgoorlie: 60 MW60West Kalgo…

Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Local climate & thermal context

This oil plant burns oil or diesel to drive turbines or reciprocating engines. It sits in a hot desert climate (Köppen BWh) — Southern Hemisphere, latitude 22.5°S — which shapes how much energy it can produce and how its output varies through the year.

25.3°Cannual mean temp
72heating degree-days (base 18°C)
2,728cooling degree-days (base 18°C)
443 melevation

Monthly mean temperature

J: 33 °CJF: 31 °CFM: 30 °CMA: 26 °CAM: 21 °CMJ: 17 °CJJ: 16 °CJA: 18 °CAS: 22 °CSO: 27 °CON: 30 °CND: 32 °CD33 °C

Heating degree-days here run 97% 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: 14/100 — this site sits in the bottom 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 benign, low-corrosion environment (estimated ISO 9223 class C1 — Very low), with dust abrasion the leading environmental stress.

C1ISO 9223 corrosivity (indicative)
44/100environmental-severity index
16.2°Cseasonal temperature swing
277 kmdistance to coast

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 #24 largest oil power plant of 46 in Australia by capacity.

Australia has 46 oil power plants in this dataset, together about 1,605 MW of capacity.

Nearby power plants

Location

Coordinates -22.4812, 119.9472 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Roy Hill?

Roy Hill is a 6 MW oil power plant in Western Australia, Australia.

Who operates Roy Hill?

Roy Hill is operated by Alinta Energy.

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