Castlelost Flexgen power station is a 275 MW gas power station in Leinster, Ireland. It ranks #15 of 76 Ireland power plants by installed capacity. Its modelled annual emissions are 88,944 t CO₂/yr (Climate TRACE), equivalent to about 21k 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 CT-2116.
Data status
Known data
Modelled source data
Calculated from dataset
Not available
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Capacity provenance
The public capacity above is the current source-record value. A 2026 tracker candidate lists 275 MW for Castlelost Flexgen power station, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).
Data provenance
Source of the capacity and fuel values:
capacity: GEM · 2026 · L100000407818; fuel: Climate TRACE
In context: how this plant compares
At 275 MW, Castlelost Flexgen power station is around the median gas plant in Ireland (275 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). Its current lifecycle status is “Pre Construction” — so it is not yet, or no longer, generating at full output. 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.
~88,944 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.
How it compares & nearby plants
The #12 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
- Rhode · Oil · 104 MW · Leinster
- Mount Lucas · Wind · 84 MW · Leinster
- Cushaling · Oil · 112 MW · Leinster
- Edenderry · Oil · 112 MW · Leinster
- Monksland power station · Gas · 100 MW · County Roscommon
- Herbata Data Centre power station · Gas · 180 MW · Naas
Location
Coordinates 53.3994, -7.3207 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Castlelost Flexgen power station?
Castlelost Flexgen power station is a 275 MW gas power plant in Leinster, Ireland, Pre Construction 2024.
How much CO₂ does Castlelost Flexgen power station emit?
Castlelost Flexgen power station has modelled emissions of about 88,944 tonnes of CO₂ per year (Climate TRACE).