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Diamantina

Gas power plant in Queensland, Australia. Approximate location -20.7837, 139.4833.

GasQueenslandAustraliaCCGT · HRSGCO₂ modelled

Diamantina is a 242 MW gas power station in Queensland, Australia. It is operated by APA Group and AGL Energy Ltd. Based on reported annual generation of 1,602 GWh, it can supply roughly 458k homes. It ranks #86 of 536 Australia power plants by installed capacity. Commissioned in 2014, it is around 12 years old — relatively modern. Its modelled annual emissions are 285,590 t CO₂/yr (Climate TRACE), equivalent to about 67k cars driven for a year. In context, gas supplies about 16.4% of Australia's electricity; the national grid averages 525 gCO₂/kWh (38.6% low-carbon) (2025).

242Source-backed capacity
2HRSG unit(s)
1,602GWh reported / yr
457,571homes powered
285,590t CO₂ / yr (Climate TRACE)
2014commissioned (~12 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id AUS0000459.

Data status

Known data

FacilityDiamantina WRI
CountryAustralia · Queensland WRI
Coordinates-20.7837, 139.4833 WRI
FuelGas WRI
MW installed capacity242 MW WRI source record; scope not independently normalised
OwnerAPA Group and AGL Energy Ltd WRI
Commissioned2014 WRI
TechnologyCCGT · HRSG WRI
GWh reported / yr1,602 GWh/yr WRI

Modelled source data

CO₂ emissions285,590 t CO₂/yr modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#86 of 536 calculated
Fuel-specific rank in country#42 of 163 calculated
Capacity vs country/fuel peers2.28× · 106 MW median · 163 peers calculated
Homes-powered equivalent457,571 calculated from reported generation
Climate24.0°C · HDD 100 derived from coordinates
Environmental severityC1 · 42/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: GEM tracker 2026 (location L100000405111); fuel: WRI source-record fuel

In context: how this plant compares

At 242 MW, Diamantina is well above the median gas plant in Australia (106 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.

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

~285,590 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

67kpassenger cars driven for a year
37khomes' yearly energy use
4.8 milliontree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; modelled emissions from Climate TRACE.

Reported generation trend

2014: 253 GWh20142015: 1,503 GWh20152016: 1,717 GWh20162017: 1,649 GWh20172018: 1,602 GWh20182k GWh

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by APA Group and AGL Energy Ltd.

Local climate & thermal context

This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a hot semi-arid steppe climate (Köppen BSh) — Southern Hemisphere, latitude 20.8°S — which shapes how much energy it can produce and how its output varies through the year.

24.0°Cannual mean temp
100heating degree-days (base 18°C)
2,293cooling degree-days (base 18°C)
439 melevation

Monthly mean temperature

J: 30 °CJF: 29 °CFM: 28 °CMA: 25 °CAM: 20 °CMJ: 17 °CJJ: 16 °CJA: 18 °CAS: 22 °CSO: 26 °CON: 28 °CND: 30 °CD30 °C

Heating degree-days here run 96% 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: 15/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

A gas turbine here also runs ~6% below its ISO (15°C) rating at this annual mean (typical CCGT curve, estimate).

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

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. 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)
42/100environmental-severity index
13.7°Cseasonal temperature swing
346 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

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 #42 largest gas power plant of 163 in Australia by capacity.

Australia has 163 gas power plants in this dataset, together about 29,942 MW of capacity.

Nearby power plants

Location

Coordinates -20.7837, 139.4833 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Diamantina?

Diamantina is a 242 MW source-record gas power plant in Queensland, Australia, commissioned in 2014.

How much electricity does Diamantina generate?

Diamantina generates about 1,602 GWh of electricity per year.

How many homes can Diamantina power?

Its output is enough to supply roughly 457,571 homes.

Who operates Diamantina?

Diamantina is operated by APA Group and AGL Energy Ltd.

How much CO₂ does Diamantina emit?

Diamantina has modelled emissions of about 285,590 tonnes of CO₂ per year (Climate TRACE).

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