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Alto do Monção

Wind power plant in Viseu, Portugal. Approximate location 40.5033, -8.2657.

WindViseuPortugalOnshore

Alto do Monção is a 32 MW wind power plant in Viseu, Portugal. It is operated by Iberdrola Renovables Energia SA [100%]. Based on its capacity (estimated), it can supply roughly 27k homes (estimated). It ranks #76 of 480 Portugal power plants by installed capacity. Commissioned in 2006, it is around 20 years old — relatively modern. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, wind supplies about 26.7% of Portugal's electricity; the national grid averages 128 gCO₂/kWh (81.0% low-carbon) (2025).

32Source-backed capacity
27,231homes powered (est.)
2006commissioned (~20 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1023271.

Data status

Known data

FacilityAlto do Monção WRI
CountryPortugal · Viseu WRI
Coordinates40.5033, -8.2657 WRI
FuelWind WRI
MW installed capacity32 MW WRI source record; scope not independently normalised
OwnerIberdrola Renovables Energia SA [100%] WRI
Commissioned2006 WRI
TechnologyOnshore WRI

Calculated from dataset

Capacity rank in country#76 of 480 calculated
Fuel-specific rank in country#36 of 224 calculated
Capacity vs country/fuel peers2.78× · 12 MW median · 224 peers calculated
Homes-powered equivalent27,231 calculated
Climate14.7°C · HDD 1,437 derived from coordinates
Environmental severityC4 · 37/100 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 L100000913482); fuel: WRI source-record fuel

In context: how this plant compares

At 32 MW, Alto do Monção is well above the median wind plant in Portugal (12 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 Portugal

Alto Minho I: 240 MW240Alto Minho…Alto Douro: 216 MW216Alto DouroAlto da Coutada: 188 MW188Alto da Co…Pinhal Interior: 157 MW157Pinhal Int…Gardunha: 135 MW135GardunhaPenamacor: 132 MW132PenamacorTerras Altas de Fafe: 124 MW124Terras Alt…Toutiço: 124 MW124Toutiço

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

Owner

Operated by Iberdrola Renovables Energia SA [100%].

Local climate & thermal context

This wind plant converts the kinetic energy of wind into electricity through turbine rotors. It sits in a warm-summer Mediterranean climate (Köppen Csb) — Northern Hemisphere, latitude 40.5°N — which shapes how much energy it can produce and how its output varies through the year.

14.7°Cannual mean temp
1,437heating degree-days (base 18°C)
245cooling degree-days (base 18°C)
243 melevation

Monthly mean temperature

J: 9 °CJF: 10 °CFM: 12 °CMA: 13 °CAM: 16 °CMJ: 19 °CJJ: 21 °CJA: 21 °CAS: 20 °CSO: 16 °CON: 12 °CND: 10 °CD21 °C

Heating degree-days here run 42% 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: 33/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

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 corrosive environment (estimated ISO 9223 class C4 — High), with marine corrosion the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
37/100environmental-severity index
12.2°Cseasonal temperature swing
49 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 #36 largest wind power plant of 224 in Portugal by capacity.

Portugal has 224 wind power plants in this dataset, together about 5,055 MW of capacity.

Nearby power plants

Location

Coordinates 40.5033, -8.2657 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Alto do Monção?

Alto do Monção is a 32 MW source-record wind power plant in Viseu, Portugal, commissioned in 2006.

How many homes can Alto do Monção power?

Its output is enough to supply roughly 27,231 homes (estimated).

Who operates Alto do Monção?

Alto do Monção is operated by Iberdrola Renovables Energia SA [100%].

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