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Zaragoza Mill power station

Gas power plant in Aragon, Spain. Approximate location 41.693617, -0.825531.

GasAragonSpainCCGT · HRSGCO₂ measured

Zaragoza Mill power station is a 43 MW gas power plant in Aragon, Spain. It is operated by Torraspapel SA [100%]. Based on its capacity (estimated), it can supply roughly 48k homes (estimated). It ranks #330 of 899 Spain power plants by installed capacity. Commissioned in 2011, it is around 15 years old — relatively modern. Its annual emissions of 69,687 t CO₂/yr (EU ETS verified (EUTL 2023)) are equivalent to about 16k 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).

43MW installed capacity
1HRSG unit(s)
48,430homes powered (est.)
69,687t CO₂ / yr (EU ETS verified (EUTL 2023))
2011commissioned (~15 yrs)

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

Data status

Known data

FacilityZaragoza Mill power station GEM-GOGPT
CountrySpain · Aragon GEM-GOGPT
Coordinates41.693617, -0.825531 GEM-GOGPT
FuelGas GEM-GOGPT
MW installed capacity43 MW GEM · 2026 · L100000407619; operating plant capacity
OwnerTorraspapel SA [100%] GEM-GOGPT
Commissioned2011 GEM-GOGPT
TechnologyCCGT · HRSG GEM-GOGPT
CO₂ emissions69,687 t CO₂·a⁻¹ measured · EU ETS verified (EUTL 2023)

Calculated from dataset

Capacity rank in country#330 / 899 calculated
Fuel-specific rank in country#58 / 95 calculated
Capacity vs country/fuel peers0.80× · 54 MW · n=95 calculated
Homes-powered equivalent48,430 calculated
Climate15.1°C · HDD 1,625 derived from coordinates
Environmental severityC1 · 36/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset

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 · 2026 · L100000407619; fuel: GEM GOGPT

In context: how this plant compares

At 43 MW, Zaragoza Mill power station is below 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.

69,687 t CO₂/yr — in everyday terms

This facility's annual emissions are roughly equivalent to:

16kpassenger cars driven for a year
9.1khomes' yearly energy use
1.2 milliontree seedlings grown 10 years to absorb it

Equivalencies via US EPA Greenhouse Gas Equivalencies; emissions per EU ETS verified (EUTL 2023) (measured for US EPA/EU ETS, modelled for Climate TRACE).

Capacity vs largest gas plants in Spain

BESOS GRUPO 5: 1,671 MW2kBESOS GRU…ARCOS DE LA FRONTERA GRUPO 1: 1,585 MW2kARCOS DE L…CARTAGENA GRUPO 1: 1,249 MW1kCARTAGENA …Cartagena (Escombreras) power station: 1,249 MW1kCartagena …CCC SAGUNTO GRUPO 2: 1,232 MW1kCCC SAGUNT…ESCOMBRERAS GRUPO 1: 1,199 MW1kESCOMBRERA…El Fangal power station: 1,199 MW1kEl Fangal …PALOS DE LA FRONTERA GRUPO 1: 1,167 MW1kPALOS DE L…

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

Owner

Operated by Torraspapel SA [100%].

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 cold semi-arid steppe climate (Köppen BSk) — Northern Hemisphere, latitude 41.7°N — which shapes how much energy it can produce and how its output varies through the year.

15.1°Cannual mean temp
1,625heating degree-days (base 18°C)
595cooling degree-days (base 18°C)
248 melevation

Monthly mean temperature

J: 7 °CJF: 9 °CFM: 11 °CMA: 13 °CAM: 17 °CMJ: 22 °CJJ: 25 °CJA: 24 °CAS: 21 °CSO: 16 °CON: 10 °CND: 7 °CD25 °C

Heating degree-days here run 34% 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: 36/100 — 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

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 benign, low-corrosion environment (estimated ISO 9223 class C1 — Very low), with dust abrasion the leading environmental stress.

C1ISO 9223 corrosivity (indicative)
36/100environmental-severity index
18.0°Cseasonal temperature swing
181 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 #58 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 41.693617, -0.825531 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Zaragoza Mill power station?

Zaragoza Mill power station is a 43 MW gas power plant in Aragon, Spain, commissioned in 2011.

How many homes can Zaragoza Mill power station power?

Its output is enough to supply roughly 48,430 homes (estimated).

Who operates Zaragoza Mill power station?

Zaragoza Mill power station is operated by Torraspapel SA [100%].

How much CO₂ does Zaragoza Mill power station emit?

Zaragoza Mill power station has measured emissions of about 69,687 tonnes of CO₂ per year (EU ETS verified (EUTL 2023)).

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