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CTCC SABON GRUPO 3 — Spain

Gas power plant in Galicia, Spain. Approximate location 43.329, -8.503.

GasGaliciaSpainCCGT · HRSGCO₂ modelled

CTCC SABON GRUPO 3 is a 391.3 MW gas power station in Galicia, Spain. It is operated by GAS NATURAL FENOSA GENERACION S.L.U.. Based on reported annual generation of 298 GWh, it can supply roughly 85k homes. It ranks #69 of 899 Spain power plants by installed capacity. Commissioned in 2008, it is around 18 years old — relatively modern. Its modelled annual emissions are 268,361 t CO₂/yr (Climate TRACE), equivalent to about 63k cars driven for a year. In context, gas supplies about 21.6% of Spain's electricity; the national grid averages 154 gCO₂/kWh (74.6% low-carbon) (2025).

391.3MW installed capacity
1HRSG unit(s)
298GWh reported / yr
85,000homes powered
268,361t CO₂ / yr (Climate TRACE)
2008commissioned (~18 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1006417.

Data status

Known data

FacilityCTCC SABON GRUPO 3 WRI
CountrySpain · Galicia WRI
Coordinates43.329, -8.503 WRI
FuelGas WRI
MW installed capacity391.3 MW GEM · 2026 · L100000400707; operating plant capacity
Verification noteQuality label backfilled from existing source-backed capacity provenance on 2026-07-05; capacity value was not changed. source-verified
OwnerGAS NATURAL FENOSA GENERACION S.L.U. WRI
Commissioned2008 WRI
TechnologyCCGT · HRSG WRI
GWh reported / yr298 GWh·a⁻¹ WRI

Modelled source data

CO₂ emissions268,361 t CO₂·a⁻¹ modelled · Climate TRACE

Calculated from dataset

Capacity rank in country#69 / 899 calculated
Fuel-specific rank in country#33 / 95 calculated
Capacity vs country/fuel peers7.25× · 54 MW · n=95 calculated
Homes-powered equivalent85,000 calculated from reported generation
Climate13.3°C · HDD 1,720 derived from coordinates
Environmental severityC4 · 33/100 derived from coordinates

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 · L100000400707; fuel: WRI GPPD

In context: how this plant compares

At 391.3 MW, CTCC SABON GRUPO 3 is well above the median gas plant in Spain (54 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.

~268,361 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

4.9kmillion cubic feet of natural gas burned
56khomes' electricity use for a year
268kacres of US forest absorbing CO₂ for a year
1.00%of the CO₂ from all Spain power plants with an emissions figure in PowerAtlas

Equivalencies via US EPA Greenhouse Gas Equivalencies; modelled emissions from Climate TRACE.

Key facts

Load factor
9%, from 298 GWh of reported generation; the median for 24 gas plants in Spain that report generation is 15%
Generation trend
160 GWh in 2015 and 298 GWh in 2017 (+86%)
Highest and lowest year
2017: 298 GWh; 2015: 160 GWh
Share of Spain gas capacity
1.2% of 32,018 MW across 95 plants in this dataset
Age among peers
56 of 83 dated gas plants in Spain are older

Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).

Reported generation trend

2015: 160 GWh20152016: 189 GWh20162017: 298 GWh2017298 GWh

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

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 warm-summer Mediterranean climate (Köppen Csb) — Northern Hemisphere, latitude 43.3°N — which shapes how much energy it can produce and how its output varies through the year.

13.3°Cannual mean temp
1,720heating degree-days (base 18°C)
18cooling degree-days (base 18°C)
207 melevation

Monthly mean temperature

J: 9 °CJF: 9 °CFM: 10 °CMA: 12 °CAM: 14 °CMJ: 16 °CJJ: 18 °CJA: 18 °CAS: 17 °CSO: 14 °CON: 12 °CND: 10 °CD18 °C

Heating degree-days here run 30% 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: 38/100 — 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 corrosive environment (estimated ISO 9223 class C4 — High), with marine corrosion the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
33/100environmental-severity index
9.5°Cseasonal temperature swing
21 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

The #33 largest gas power plant of 95 in Spain by capacity.

Spain has 95 gas power plants in this dataset, together about 32,018 MW of capacity.

Nearby power plants

Location

Coordinates 43.329, -8.503 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is CTCC SABON GRUPO 3?

CTCC SABON GRUPO 3 is a 391.3 MW gas power plant in Galicia, Spain, commissioned in 2008.

How much electricity does CTCC SABON GRUPO 3 generate?

CTCC SABON GRUPO 3 generates about 298 GWh of electricity per year.

Who operates CTCC SABON GRUPO 3?

CTCC SABON GRUPO 3 is operated by GAS NATURAL FENOSA GENERACION S.L.U..

How much CO₂ does CTCC SABON GRUPO 3 emit?

CTCC SABON GRUPO 3 has modelled emissions of about 268,361 tonnes of CO₂ per year (Climate TRACE).

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