Tynagh is a 404 MW gas power station in Connaught, Ireland. It is operated by Tynagh. Based on reported annual generation of 522 GWh, it can supply roughly 149k homes. It ranks #11 of 76 Ireland power plants by installed capacity. Commissioned in 2006, it is around 20 years old — relatively modern. Its modelled annual emissions are 382,540 t CO₂/yr (Climate TRACE), equivalent to about 89k cars driven for a year. In context, gas supplies about 48.4% of Ireland's electricity; the national grid averages 257 gCO₂/kWh (48.1% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1002842.
Data status
Known data
Modelled source data
Calculated from dataset
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 · L100000400334; fuel: WRI GPPD
In context: how this plant compares
At 404 MW, Tynagh is well above the median gas plant in Ireland (275 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). 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.
~382,540 t CO₂/yr (modelled) — in everyday terms
This facility's annual emissions are roughly equivalent to:
Equivalencies via US EPA Greenhouse Gas Equivalencies; modelled emissions from Climate TRACE.
Key facts
- Load factor
- 15%, from 522 GWh of reported generation
- Share of Ireland gas capacity
- 5.6% of 7,234 MW across 24 plants in this dataset
- Age among peers
- 4 of 16 dated gas plants in Ireland are older
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Capacity vs largest gas plants in Ireland
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by Tynagh.
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) — Northern Hemisphere, latitude 53.2°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 20% above 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: 62/100 — this site sits in the mid 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
This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.
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 #9 largest gas power plant of 24 in Ireland by capacity.
Ireland has 24 gas power plants in this dataset, together about 7,234 MW of capacity.
Nearby power plants
- Coolpowra power plant · Gas · 1,155 MW · Galway
- Derrybrien · Wind · 60 MW · Connaught
- Shannonbridge power station · Oil · 264 MW · Shannonbridge
- West Offaly Power · Biomass · 137 MW · Leinster
- Cashla Peaker Power Station · Gas · 334 MW · Connaught
- Monksland power station · Gas · 100 MW · County Roscommon
Location
Coordinates 53.1658, -8.381 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Tynagh?
Tynagh is a 404 MW gas power plant in Connaught, Ireland, commissioned in 2006.
How much electricity does Tynagh generate?
Tynagh generates about 522 GWh of electricity per year.
Who operates Tynagh?
Tynagh is operated by Tynagh.
How much CO₂ does Tynagh emit?
Tynagh has modelled emissions of about 382,540 tonnes of CO₂ per year (Climate TRACE).