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Solar panels for farms in Barnstaple

Farm buildings around Barnstaple carry broad, shallow roofs that were put up for storage and stock, not for generation. What decides a farm scheme here is the state of the roof sheets and the incoming supply, which is why the survey looks at both before anyone sizes an array.

908 kWh per kWp a year at this latitude, so a 500 kWp array models at about 454,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

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96 m phase 1
Drawing Barnstaple unit
Roof 96 x 62 m
Array 500 kWp
Yield 454,000 kWh/yr
Scale 1:500 / Rev A / EX32

Illustrative layout for a unit of this size. Your own figures come from the roof survey.

Barnstaple / Devon
South West pasture and farm buildings carrying rooftop solar
Industrial stock of the kind we survey across South West.

Agricultural rooftop solar across Devon

What a farm roof near Barnstaple generates

Modelled irradiation at this latitude is 1155 kWh per square metre a year in the plane of a shallow-pitched roof, which works out at 908 kWh for every kWp installed (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). That sits within a few percent of the mean across the areas we cover, so what decides the scheme is your own demand pattern rather than the latitude.

The planning record lists 2 ground mounted solar schemes in this postcode district, which is a fair guide to how the local network has treated field arrays. The typical consented scheme in this district is about 4.4 MW, with the largest at 8.3 MW. Source: Renewable Energy Planning Database, Q1 2026.

Most of the buildings we look at here sit in the EX postcode area.

North Devon is the planning authority for most holdings here, and it is the authority that decides whether an array on an agricultural building falls inside permitted development.

FIG. 1 What a Barnstaple roof makes, month by month

What a Barnstaple roof makes, month by month

Modelled output per kWp installed, for a shallow-pitched south-facing array. Source: EU PVGIS v5.2.

050100Jan: 23 kWh per kWpJanFeb: 41 kWh per kWpFebMar: 76 kWh per kWpMarApr: 109 kWh per kWpAprMay: 127 kWh per kWpMay127 kWh Jun: 123 kWh per kWpJunJul: 123 kWh per kWpJulAug: 103 kWh per kWpAugSep: 81 kWh per kWpSepOct: 51 kWh per kWpOctNov: 29 kWh per kWpNovDec: 20 kWh per kWpDec

May produces 6.3 times what Dec does on the same roof. A 500 kWp array here models at about 454,000 kWh across the year, but it arrives unevenly, which is why we size against your summer daytime load and then look at whether storage is worth adding for the shoulder months.

Monthly figures as a table
MonthkWh per kWp500 kWp array
Jan2311,500
Feb4120,500
Mar7638,000
Apr10954,500
May12763,500
Jun12361,500
Jul12361,500
Aug10351,500
Sep8140,500
Oct5125,500
Nov2914,500
Dec2010,000
Source: EU PVGIS v5.2
FIG. 2 Barnstaple against the rest of Devon
  • Paignton961
  • Plymouth960
  • Newton Abbot943
  • Exeter938
  • Torquay937
  • Exmouth937
  • Barnstaple908
  • Tiverton903

Barnstaple ranks 7 of 8 towns we cover in Devon on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 903 to 961, a spread of 58 kWh per kWp. On a 500 kWp array that is about 29,000 kWh a year between the strongest and weakest town in the county.

Bars are zero based, so length is proportional to the figure. Where a county is flat, that is the finding: location is not the lever, consumption is. Source: EU PVGIS v5.2, modelled per town

Solar already consented near EX32

From the government's Renewable Energy Planning Database, Q1 2026. These are the schemes on record in this postcode district, which is a fair guide to how the local network has been treating export applications.

Scheme Operator Capacity Mounting Status
Capeland Farm juwi Renewable Energies 8.3 MW Ground Operational
West Buckland School, West Buckland - Solar Panels West Buckland School 0.41 MW Ground Awaiting Construction

Grid connection through National Grid Electricity Distribution

National Grid Electricity Distribution is the network operator here, and their answer on export capacity shapes the design. Any commercial array above 3.68 kW per phase connects under G99 rather than G98, and the application fixes what you are allowed to push back onto the network. If the local network is tight, limiting export rarely breaks the case here: most of the generation is consumed on site while the building is working.

Across Devon the planning database records 248 solar schemes totalling 1451 MW, of which 90 are operational (REPD Q1 2026).

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Send us the postcode

Tell us where the unit is and roughly how big the roof is. We come back with what it can carry, what it would generate against your consumption, and the three ways to pay for it.

Lenzie Consulting Ltd arranges the survey and passes your details to our MCS-certified installation partner so they can quote.

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Questions about solar in Barnstaple

Is there enough sun around Barnstaple to make this work?
Modelled at 908 kWh per kWp a year for a shallow-pitched roof at this latitude, which puts a 500 kWp array at roughly 454,000 kWh a year before shading. That array needs about 1,485 sqm of clear roof once ridge vents and walkways are allowed for. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Who do we apply to for export near Barnstaple?
Only National Grid Electricity Distribution can answer it for your connection, and on rural feeders the answer varies farm to farm. An export-limited offer usually still works, because a holding with grain drying, cooling or ventilation uses most of what it makes.
Do we need planning permission in North Devon?
In most cases no, because panels on the roof of an agricultural building usually sit within permitted development. The exceptions are listed buildings, conservation areas, protected landscapes and arrays that stand proud of the roof. We check with North Devon either way.
Has anyone near EX32 already done this?
The planning database records 2 ground mounted and 0 roof mounted solar schemes in this postcode district. That matters less as proof it works and more as evidence of how the local network has treated export applications. Roof arrays under a megawatt often never appear in the database, so the real figure is higher. Source: Renewable Energy Planning Database, Q1 2026.

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