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Marrum

Wind power plant in Friesland, Netherlands. Approximate location 53.3228, 5.802.

WindFrieslandNetherlands

Marrum is a 5 MW wind power plant in Friesland, Netherlands. Based on its capacity (estimated), it can supply roughly 4.4k homes (estimated). It ranks #112 of 119 Netherlands power plants by installed capacity. Commissioned in 2008, it is around 18 years old — relatively modern. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, wind supplies about 25.0% of Netherlands's electricity; the national grid averages 254 gCO₂/kWh (54.2% low-carbon) (2025).

5Legacy source-record capacity
4,425homes powered (est.)
2008commissioned (~18 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1005394.

Data status

Known data

FacilityMarrum WRI
CountryNetherlands · Friesland WRI
Coordinates53.3228, 5.802 WRI
FuelWind WRI
MW installed capacity5 MW WRI source record; scope not independently normalised
Commissioned2008 WRI

Calculated from dataset

Capacity rank in country#112 of 119 calculated
Fuel-specific rank in country#35 of 40 calculated
Capacity vs country/fuel peers0.58× · 9 MW median · 40 peers calculated
Homes-powered equivalent4,425 calculated
Climate9.1°C · HDD 3,242 derived from coordinates
Environmental severityC4 · 34/100 derived from coordinates

Not available

OwnerNot available not in dataset
TechnologyNot available not in dataset
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 fuel fields on this page are source-record values from the upstream open dataset. They are useful for identification and ranking, but they have not been upgraded to a 2026 registry/GEM-location verified value.

capacity: WRI Global Power Plant Database source-record (legacy); fuel: WRI source-record fuel

In context: how this plant compares

At 5 MW, Marrum is below the median wind plant in Netherlands (9 MW). 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 Netherlands

Gemini: 600 MW600GeminiNortheast Binnendijks: 218 MW218Northeast …Westereems: 162 MW162WestereemsOutside the Northeast: 144 MW144Outside th…Luchterduinen: 129 MW129Luchterdui…Princess Amalia: 120 MW120Princess A…Egmond aan Zee: 108 MW108Egmond aan…Delfzijl Zuid: 78 MW78Delfzijl Z…

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

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 53.3°N — which shapes how much energy it can produce and how its output varies through the year.

9.1°Cannual mean temp
3,242heating degree-days (base 18°C)
0cooling degree-days (base 18°C)
-2 melevation

Monthly mean temperature

J: 2 °CJF: 2 °CFM: 5 °CMA: 7 °CAM: 12 °CMJ: 14 °CJJ: 16 °CJA: 16 °CAS: 14 °CSO: 10 °CON: 6 °CND: 3 °CD16 °C

Heating degree-days here run 32% 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: 69/100 — this site sits in the top 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)
34/100environmental-severity index
14.2°Cseasonal temperature swing
8 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 #35 largest wind power plant of 40 in Netherlands by capacity.

Netherlands has 40 wind power plants in this dataset, together about 1,885 MW of capacity.

Nearby power plants

Location

Coordinates 53.3228, 5.802 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Marrum?

Marrum is a 5 MW source-record wind power plant in Friesland, Netherlands, commissioned in 2008.

How many homes can Marrum power?

Its output is enough to supply roughly 4,425 homes (estimated).

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