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Appin (Mine)

Gas power plant in New South Wales, Australia. Approximate location -34.2082, 150.7722.

GasNew South WalesAustraliaCO₂ modelled

Appin (Mine) is a 56 MW gas power plant in New South Wales, Australia. It is operated by Energy Developments CSM (NSW) Pty Ltd. Based on reported annual generation of 100 GWh, it can supply roughly 28k homes. It ranks #252 of 536 Australia power plants by installed capacity. Its modelled annual emissions are 21,208 t CO₂/yr (Climate TRACE), equivalent to about 4.9k 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).

56Source-backed capacity
100GWh reported / yr
28,428homes powered
21,208t CO₂ / yr (Climate TRACE)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id AUS0000264.

Data status

Known data

FacilityAppin (Mine) WRI
CountryAustralia · New South Wales WRI
Coordinates-34.2082, 150.7722 WRI
FuelGas WRI
MW installed capacity56 MW WRI source record; scope not independently normalised
OwnerEnergy Developments CSM (NSW) Pty Ltd WRI
GWh reported / yr100 GWh/yr WRI

Modelled source data

CO₂ emissions21,208 t CO₂/yr modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#252 of 536 calculated
Fuel-specific rank in country#103 of 163 calculated
Capacity vs country/fuel peers0.52× · 106 MW median · 163 peers calculated
Homes-powered equivalent28,428 calculated from reported generation
Climate15.4°C · HDD 1,141 derived from coordinates
Environmental severityC4 · 39/100 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/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 L100000408140); fuel: WRI source-record fuel

In context: how this plant compares

At 56 MW, Appin (Mine) 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.

~21,208 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

4.9kpassenger cars driven for a year
2.8khomes' yearly energy use
353ktree seedlings grown 10 years to absorb it

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

Reported generation trend

2013: 205 GWh20132014: 238 GWh20142015: 164 GWh20152016: 159 GWh20162017: 64 GWh20172018: 100 GWh2018238 GWh

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

Owner

Operated by Energy Developments CSM (NSW) Pty 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 temperate oceanic climate (Köppen Cfb) — Southern Hemisphere, latitude 34.2°S — which shapes how much energy it can produce and how its output varies through the year.

15.4°Cannual mean temp
1,141heating degree-days (base 18°C)
179cooling degree-days (base 18°C)
311 melevation

Monthly mean temperature

J: 20 °CJF: 20 °CFM: 19 °CMA: 16 °CAM: 14 °CMJ: 11 °CJJ: 10 °CJA: 11 °CAS: 13 °CSO: 15 °CON: 17 °CND: 19 °CD20 °C

Heating degree-days here run 54% 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: 28/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

A gas turbine here also runs ~0% 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 corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
39/100environmental-severity index
10.2°Cseasonal temperature swing
44 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 #103 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 -34.2082, 150.7722 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Appin (Mine)?

Appin (Mine) is a 56 MW source-record gas power plant in New South Wales, Australia.

How much electricity does Appin (Mine) generate?

Appin (Mine) generates about 100 GWh of electricity per year.

How many homes can Appin (Mine) power?

Its output is enough to supply roughly 28,428 homes.

Who operates Appin (Mine)?

Appin (Mine) is operated by Energy Developments CSM (NSW) Pty Ltd.

How much CO₂ does Appin (Mine) emit?

Appin (Mine) has modelled emissions of about 21,208 tonnes of CO₂ per year (Climate TRACE).

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