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Coomacheo

Wind power plant in Munster, Ireland. Approximate location 52.0116, -9.1362.

WindMunsterIrelandOnshore

Coomacheo is a 41 MW wind power plant in Munster, Ireland. It is operated by SSE Renewables. Based on its capacity (estimated), it can supply roughly 35k homes (estimated). It ranks #53 of 76 Ireland 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 38.0% of Ireland's electricity; the national grid averages 257 gCO₂/kWh (48.1% low-carbon) (2025).

41Source-backed capacity
34,889homes powered (est.)
2008commissioned (~18 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1022871.

Data status

Known data

FacilityCoomacheo WRI
CountryIreland · Munster WRI
Coordinates52.0116, -9.1362 WRI
FuelWind WRI
MW installed capacity41 MW WRI source record; scope not independently normalised
OwnerSSE Renewables WRI
Commissioned2008 WRI
TechnologyOnshore WRI

Calculated from dataset

Capacity rank in country#53 of 76 calculated
Fuel-specific rank in country#17 of 38 calculated
Capacity vs country/fuel peers1.17× · 35 MW median · 38 peers calculated
Homes-powered equivalent34,889 calculated
Environmental severityC4 · 28/100 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

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 L100000914288); fuel: WRI source-record fuel

In context: how this plant compares

At 41 MW, Coomacheo is well above the median wind plant in Ireland (35 MW). 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.

Capacity vs largest wind plants in Ireland

Lisheen: 89 MW89LisheenKnockacummer 1: 87 MW87Knockacumm…Mount Lucas: 84 MW84Mount LucasMeentycat: 72 MW72MeentycatBoggeragh 2: 67 MW67Boggeragh 2Derrybrien: 60 MW60DerrybrienSliabh Bawn: 58 MW58Sliabh BawnBoggeragh: 57 MW57Boggeragh

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

Owner

Operated by SSE Renewables.

Climate zone & how it works

This wind plant converts the kinetic energy of wind into electricity through turbine rotors. It sits in a temperate oceanic climate (Köppen Cfb) — Northern Hemisphere, latitude 52.0°N — which shapes how much energy it can produce and how its output varies through the year.

~11°Ctypical annual mean
~18°Ctypical warm-season mean
Temperate oceanic: four distinct seasons — cold winters and warm summers

Climate zone & typical temperatures: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).

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)
28/100environmental-severity index
9.1°Cseasonal temperature swing
34 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 #17 largest wind power plant of 38 in Ireland by capacity.

Ireland has 38 wind power plants in this dataset, together about 1,326 MW of capacity.

Nearby power plants

Location

Coordinates 52.0116, -9.1362 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Coomacheo?

Coomacheo is a 41 MW source-record wind power plant in Munster, Ireland, commissioned in 2008.

How many homes can Coomacheo power?

Its output is enough to supply roughly 34,889 homes (estimated).

Who operates Coomacheo?

Coomacheo is operated by SSE Renewables.

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