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Gullen

Solar power plant in New South Wales, Australia. Approximate location -34.61, 149.476.

SolarNew South WalesAustralia

Gullen is a 10 MW solar power plant in New South Wales, Australia. Based on its capacity (estimated), it can supply roughly 4.3k homes (estimated). It ranks #395 of 536 Australia power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, solar supplies about 19.6% of Australia's electricity; the national grid averages 525 gCO₂/kWh (38.6% low-carbon) (2025).

10Source-backed capacity
4,254homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WKS0068350.

Data status

Known data

FacilityGullen WRI
CountryAustralia · New South Wales WRI
Coordinates-34.61, 149.476 WRI
FuelSolar WRI
MW installed capacity10 MW WRI source record; scope not independently normalised

Calculated from dataset

Capacity rank in country#395 of 536 calculated
Fuel-specific rank in country#54 of 69 calculated
Capacity vs country/fuel peers0.21× · 47 MW median · 69 peers calculated
Homes-powered equivalent4,254 calculated
Climate13.0°C · HDD 1,968 derived from coordinates
Environmental severityC3 · 33/100 derived from coordinates

Not available

OwnerNot available not in dataset
CommissionedNot available not in dataset
TechnologyNot available not in dataset
GWh reported / yrNot available not in dataset
CO₂ emissionsnot applicable not applicable

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 L100000827543); fuel: WRI source-record fuel

In context: how this plant compares

At 10 MW, Gullen is below the median solar plant in Australia (47 MW). Solar PV converts sunlight directly into electricity with no moving parts or fuel; output varies by time of day and weather, so it pairs with storage or flexible backup.

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

Capacity vs largest solar plants in Australia

Haughton River Solar Farm: 500 MW500Haughton R…Sunraysia: 200 MW200SunraysiaHayman Solar Farm: 180 MW180Hayman Sol…Daydream Solar Farm: 150 MW150Daydream S…Wilpena Solar Farm: 145 MW145Wilpena So…Clare Solar Farm: 128 MW128Clare Sola…Ross River: 128 MW128Ross RiverLilyvale Solar Farm: 125 MW125Lilyvale S…

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

Local climate & thermal context

This solar plant converts sunlight directly into electricity with photovoltaic panels. It sits in a temperate oceanic climate (Köppen Cfb) — Southern Hemisphere, latitude 34.6°S — which shapes how much energy it can produce and how its output varies through the year.

13.0°Cannual mean temp
1,968heating degree-days (base 18°C)
121cooling degree-days (base 18°C)
705 melevation

Monthly mean temperature

J: 20 °CJF: 20 °CFM: 17 °CMA: 13 °CAM: 10 °CMJ: 7 °CJJ: 6 °CJA: 7 °CAS: 10 °CSO: 13 °CON: 15 °CND: 18 °CD20 °C

Heating degree-days here run 20% 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: 42/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

Solar PV loses ~0.35%/°C above 25°C cell temperature — roughly 0.0% at warm-season highs here (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 moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
33/100environmental-severity index
14.1°Cseasonal temperature swing
113 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 #54 largest solar power plant of 69 in Australia by capacity.

Australia has 69 solar power plants in this dataset, together about 4,331 MW of capacity.

Nearby power plants

Location

Coordinates -34.61, 149.476 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Gullen?

Gullen is a 10 MW source-record solar power plant in New South Wales, Australia.

How many homes can Gullen power?

Its output is enough to supply roughly 4,254 homes (estimated).

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