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Middle Muir Wind Farm

Wind power plant in Scotland, United Kingdom. Approximate location 55.5129, -3.804.

WindScotlandUnited KingdomOnshore

Middle Muir Wind Farm is a 51 MW wind power plant in Scotland, United Kingdom. It is operated by Banks Renewables. Based on its capacity (estimated), it can supply roughly 43k homes (estimated). It ranks #245 of 2,860 United Kingdom power plants by installed capacity. Commissioned in 2019, it is around 7 years old — recently built. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, wind supplies about 29.4% of United Kingdom's electricity; the national grid averages 217 gCO₂/kWh (64.4% low-carbon) (2025).

51Source-backed capacity
43,399homes powered (est.)
2019commissioned (~7 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id GBR2001067.

Data status

Known data

FacilityMiddle Muir Wind Farm WRI
CountryUnited Kingdom · Scotland WRI
Coordinates55.5129, -3.804 WRI
FuelWind WRI
MW installed capacity51 MW WRI source record; scope not independently normalised
OwnerBanks Renewables WRI
Commissioned2019 WRI
TechnologyOnshore WRI

Calculated from dataset

Capacity rank in country#245 of 2860 calculated
Fuel-specific rank in country#88 of 779 calculated
Capacity vs country/fuel peers5.10× · 10 MW median · 779 peers calculated
Homes-powered equivalent43,399 calculated
Climate6.8°C · HDD 4,076 derived from coordinates
Environmental severityC3 · 23/100 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 L100000915105); fuel: WRI source-record fuel

In context: how this plant compares

At 51 MW, Middle Muir Wind Farm is well above the median wind plant in United Kingdom (10 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 United Kingdom

Hornsea 1 - Heron & Njord: 1,200 MW1kHornsea 1 …Walney 3: 660 MW660Walney 3London Array: 630 MW630London Arr…Beatrice: 588 MW588BeatriceGwynt y Mor: 576 MW576Gwynt y MorClyde Wind Farm: 523 MW523Clyde Wind…Greater Gabbard: 504 MW504Greater Ga…Dudgeon East: 402 MW402Dudgeon Ea…

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

Owner

Operated by Banks Renewables. All plants by this company →

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 55.5°N — which shapes how much energy it can produce and how its output varies through the year.

6.8°Cannual mean temp
4,076heating degree-days (base 18°C)
0cooling degree-days (base 18°C)
399 melevation

Monthly mean temperature

J: 2 °CJF: 2 °CFM: 3 °CMA: 5 °CAM: 8 °CMJ: 11 °CJJ: 13 °CJA: 12 °CAS: 10 °CSO: 7 °CON: 4 °CND: 2 °CD13 °C

Heating degree-days here run 66% 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: 85/100 — 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 moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.

C3ISO 9223 corrosivity (indicative)
23/100environmental-severity index
11.0°Cseasonal temperature swing
118 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 #88 largest wind power plant of 779 in United Kingdom by capacity.

United Kingdom has 779 wind power plants in this dataset, together about 23,763 MW of capacity.

Nearby power plants

Location

Coordinates 55.5129, -3.804 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Middle Muir Wind Farm?

Middle Muir Wind Farm is a 51 MW source-record wind power plant in Scotland, United Kingdom, commissioned in 2019.

How many homes can Middle Muir Wind Farm power?

Its output is enough to supply roughly 43,399 homes (estimated).

Who operates Middle Muir Wind Farm?

Middle Muir Wind Farm is operated by Banks Renewables.

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