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Fiefs

Wind power plant in Nord-Pas-de-Calais, France. Approximate location 50.4859, 2.327.

WindNord-Pas-de-CalaisFranceOnshoreConstruction

Fiefs is a 13 MW wind power plant in Nord-Pas-de-Calais, France. It is operated by Boralex Inc [100%]. Based on its capacity (estimated), it can supply roughly 11k homes (estimated). It ranks #492 of 2,216 France power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, wind supplies about 8.2% of France's electricity; the national grid averages 41 gCO₂/kWh (94.9% low-carbon) (2025).

13Source-backed capacity
10,892homes powered (est.)
2012Construction year

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1024180.

Data status

Known data

FacilityFiefs WRI
CountryFrance · Nord-Pas-de-Calais WRI
Coordinates50.4859, 2.327 WRI
FuelWind WRI
MW installed capacity13 MW WRI source record; scope not independently normalised
OwnerBoralex Inc [100%] WRI
Commissioned2012 WRI
TechnologyOnshore WRI

Calculated from dataset

Capacity rank in country#492 of 2216 calculated
Fuel-specific rank in country#187 of 721 calculated
Capacity vs country/fuel peers1.11× · 12 MW median · 721 peers calculated
Homes-powered equivalent10,892 calculated
Climate9.7°C · HDD 3,022 derived from coordinates
Environmental severityC4 · 31/100 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.

Capacity provenance

The public capacity above is the current source-record value. A 2026 tracker candidate lists 18 MW for Fiefs wind farm, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

Capacity claim grade: A2_GENERAL_REVIEW - recommended action: manual_source_check - confidence: medium_low. This follows a claim-based data model: value + scope + source + confidence, rather than silently overwriting records.

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 L100000911052); fuel: WRI source-record fuel

In context: how this plant compares

At 13 MW, Fiefs is well above the median wind plant in France (12 MW). Technically it is described as Onshore. Its current lifecycle status is “construction” — so it is not yet, or no longer, generating at full output. 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 France

Salles-Curan: 87 MW87Salles-Cur…Épizon: 80 MW80ÉpizonGerminon: 75 MW75GerminonCormainville: 60 MW60Cormainvil…Murat-sur-Vèbre: 59 MW59Murat-sur-…Villesèque-des-Corbières: 55 MW55Villesèque…Allonnes: 52 MW52AllonnesCastelnau-Pégayrols: 48 MW48Castelnau-…

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

Owner

Operated by Boralex Inc [100%].

Local climate & thermal context

This wind plant converts the kinetic energy of wind into electricity through turbine rotors. It sits in a temperate oceanic climate (Köppen Cfb) — Northern Hemisphere, latitude 50.5°N — which shapes how much energy it can produce and how its output varies through the year.

9.7°Cannual mean temp
3,022heating degree-days (base 18°C)
0cooling degree-days (base 18°C)
135 melevation

Monthly mean temperature

J: 3 °CJF: 3 °CFM: 6 °CMA: 8 °CAM: 12 °CMJ: 14 °CJJ: 17 °CJA: 17 °CAS: 14 °CSO: 11 °CON: 7 °CND: 4 °CD17 °C

Heating degree-days here run 23% 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: 63/100 — this site sits in the mid 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 humidity / wetness the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
31/100environmental-severity index
13.7°Cseasonal temperature swing
40 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 #187 largest wind power plant of 721 in France by capacity.

France has 721 wind power plants in this dataset, together about 9,164 MW of capacity.

Nearby power plants

Location

Coordinates 50.4859, 2.327 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Fiefs?

Fiefs is a 13 MW source-record wind power plant in Nord-Pas-de-Calais, France, planned/announced for 2012.

How many homes can Fiefs power?

Its output is enough to supply roughly 10,892 homes (estimated).

Who operates Fiefs?

Fiefs is operated by Boralex Inc [100%].

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