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Weddell

Gas power plant in Northern Territory, Australia. Approximate location -12.5771, 130.9502.

GasNorthern TerritoryAustraliaCO₂ modelled

Weddell is a 86 MW gas power plant in Northern Territory, Australia. It is operated by NT Power and Water. Based on reported annual generation of 364 GWh, it can supply roughly 104k homes. It ranks #201 of 536 Australia power plants by installed capacity. Its modelled annual emissions are 189,020 t CO₂/yr (Climate TRACE), equivalent to about 44k 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).

86Legacy source-record capacity
364GWh reported / yr
104,000homes powered
189,020t CO₂ / yr (Climate TRACE)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id AUS0000260.

Data status

Known data

FacilityWeddell WRI
CountryAustralia · Northern Territory WRI
Coordinates-12.5771, 130.9502 WRI
FuelGas WRI
MW installed capacity86 MW WRI source record; scope not independently normalised
OwnerNT Power and Water WRI
GWh reported / yr364 GWh/yr WRI

Modelled source data

CO₂ emissions189,020 t CO₂/yr modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#201 of 536 calculated
Fuel-specific rank in country#87 of 163 calculated
Capacity vs country/fuel peers0.81× · 106 MW median · 163 peers calculated
Homes-powered equivalent104,000 calculated from reported generation
Climate27.2°C · HDD 0 derived from coordinates
Environmental severityC5 · 50/100 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

The capacity and fuel fields on this page are source-record values from the upstream open dataset. They are useful for identification and ranking, but they have not been upgraded to a 2026 registry/GEM-location verified value.

capacity: WRI Global Power Plant Database source-record (legacy); fuel: WRI source-record fuel

In context: how this plant compares

At 86 MW, Weddell is below the median gas plant in Australia (106 MW). 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.

~189,020 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

44kpassenger cars driven for a year
25khomes' yearly energy use
3.2 milliontree seedlings grown 10 years to absorb it

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

Reported generation trend

2013: 325 GWh20132014: 346 GWh20142015: 438 GWh20152016: 431 GWh20162017: 380 GWh20172018: 364 GWh2018438 GWh

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

Owner

Operated by NT Power and Water.

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 tropical savanna climate (Köppen Aw) — Southern Hemisphere, latitude 12.6°S — which shapes how much energy it can produce and how its output varies through the year.

27.2°Cannual mean temp
0heating degree-days (base 18°C)
3,363cooling degree-days (base 18°C)
34 melevation

Monthly mean temperature

J: 28 °CJF: 28 °CFM: 28 °CMA: 28 °CAM: 26 °CMJ: 25 °CJJ: 24 °CJA: 25 °CAS: 28 °CSO: 29 °CON: 29 °CND: 29 °CD29 °C

This site has effectively no heating season (tropical/equatorial climate), so winter heat loss is not the driver here. The thermal concern shifts to year-round process heat and humidity/heat-driven corrosion of hot equipment.

A gas turbine here also runs ~9% 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 an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.

C5ISO 9223 corrosivity (indicative)
50/100environmental-severity index
5.3°Cseasonal temperature swing
26 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 #87 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 -12.5771, 130.9502 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Weddell?

Weddell is a 86 MW source-record gas power plant in Northern Territory, Australia.

How much electricity does Weddell generate?

Weddell generates about 364 GWh of electricity per year.

How many homes can Weddell power?

Its output is enough to supply roughly 104,000 homes.

Who operates Weddell?

Weddell is operated by NT Power and Water.

How much CO₂ does Weddell emit?

Weddell has modelled emissions of about 189,020 tonnes of CO₂ per year (Climate TRACE).

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