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Butoni — Fiji

Wind power plant in Western, Fiji. Approximate location -18.1129, 177.5057.

WindWesternFijiOnshore

Butoni is a 10.1 MW wind power plant in Western, Fiji. It is operated by Fiji Electricity Authority. Based on its capacity (estimated), it can supply roughly 8.6k homes (estimated). It ranks #5 of 12 Fiji power plants by installed capacity. Commissioned in 2008, it is around 18 years old — relatively modern. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, wind supplies about 0.0% of Fiji's electricity; the national grid averages 278 gCO₂/kWh (63.5% low-carbon) (2024).

10.1MW installed capacity
8,594homes powered (est.)
2008commissioned (~18 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1061467.

Data status

Known data

FacilityButoni WRI
CountryFiji · Western WRI
Coordinates-18.1129, 177.5057 WRI
FuelWind WRI
MW installed capacity10.1 MW GEM · 2026 · L100000906043; operating plant capacity
Verification noteQuality label backfilled from existing source-backed capacity provenance on 2026-07-05; capacity value was not changed. source-verified
OwnerFiji Electricity Authority WRI
Commissioned2008 WRI
TechnologyOnshore WRI

Calculated from dataset

Capacity rank in country#5 / 12 calculated
Fuel-specific rank in country#1 / 1 calculated
Homes-powered equivalent8,594 calculated
Climate24.8°C · HDD 0 derived from coordinates
Environmental severityC5 · 47/100 derived from coordinates

Not available

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

Source of the capacity and fuel values:

capacity: GEM · 2026 · L100000906043; fuel: WRI GPPD

In context: how this plant compares

Technically it is described as Onshore. Wind turbines convert moving air into electricity; output is variable and site-dependent, and modern turbines deliver some of the lowest-cost new generation on many grids.

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

Owner

Operated by Fiji Electricity Authority.

Local climate & thermal context

This wind plant converts the kinetic energy of wind into electricity through turbine rotors. It sits in a tropical rainforest climate (Köppen Af) — Southern Hemisphere, latitude 18.1°S — which shapes how much energy it can produce and how its output varies through the year.

24.8°Cannual mean temp
0heating degree-days (base 18°C)
2,470cooling degree-days (base 18°C)
80 melevation

Monthly mean temperature

J: 26 °CJF: 27 °CFM: 26 °CMA: 26 °CAM: 24 °CMJ: 24 °CJJ: 23 °CJA: 23 °CAS: 23 °CSO: 24 °CON: 25 °CND: 26 °CD27 °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.

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 an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.

C5ISO 9223 corrosivity (indicative)
47/100environmental-severity index
4.0°Cseasonal temperature swing
30 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

Fiji has 1 wind power plant in this dataset, together about 10 MW of capacity.

Nearby power plants

Location

Coordinates -18.1129, 177.5057 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Butoni?

Butoni is a 10.1 MW wind power plant in Western, Fiji, commissioned in 2008.

Who operates Butoni?

Butoni is operated by Fiji Electricity Authority.

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