How much does a farm roof near Salisbury generate?

The model gives 923 kWh for every kWp installed here, so 500 kWp comes out at about 462,000 kWh a year before shading losses. A building of roughly 1,485 sqm of clear roof carries it. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

Will the rural network around Salisbury take the export?

Scottish and Southern Electricity Networks is the distribution network operator for Wiltshire. Anything above 3.68 kW per phase connects under G99, and the application sets the export limit. Rural supplies are often the binding constraint, so we ask the question before an array is sized.

Is planning permission needed for panels on a farm building near Salisbury?

Usually permitted development covers a roof array. Ground mounted arrays are a different question and are far more likely to need a full application. We put both to Wiltshire before design sign-off.

Has anyone near SP2 already done this?

The planning database records 0 ground mounted and 5 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.

Solar panels for farms in Salisbury

Most holdings around Salisbury already own the best generating site they will ever have, and it is the roof of the shed they built for something else. Each survey records the sheet type and condition, the usable area once rooflights and vents come out, and whether the supply is single or three phase.

923 kWh per kWp a year at this latitude, so a 500 kWp array models at about 462,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

Book a roof survey in Salisbury

Drawing Salisbury unit

Roof 96 x 62 m

Array 500 kWp

Yield 462,000 kWh/yr

Scale 1:500 / Rev A / SP2

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

Salisbury / Wiltshire

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

Farm building solar PV across Wiltshire

What a farm roof near Salisbury generates

Modelled irradiation at this latitude is 1182 kWh per square metre a year in the plane of a shallow-pitched roof, which works out at 923 kWh for every kWp installed (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). That is around 4 percent above the mean across the areas we cover, which is as strong as UK farm rooftop gets outside the south coast.

5 roof mounted schemes are on record nearby. Roof arrays under a megawatt frequently never reach that database at all, so the real number of farm roofs generating around Salisbury is higher than the record shows.

We survey holdings across the SP postcode area, starting from SP2.

Wiltshire 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 Salisbury roof makes, month by month

Jul produces 5.7 times what Dec does on the same roof. A 500 kWp array here models at about 462,000 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

Month	kWh per kWp	500 kWp array
Jan	26	13,000
Feb	40	20,000
Mar	76	38,000
Apr	107	53,500
May	124	62,000
Jun	125	62,500
Jul	126	63,000
Aug	107	53,500
Sep	85	42,500
Oct	52	26,000
Nov	32	16,000
Dec	22	11,000

Source: EU PVGIS v5.2

FIG. 2 Salisbury against the rest of Wiltshire

Salisbury923
Melksham912
Warminster912
Trowbridge909
Devizes906
Marlborough900
Swindon899
Chippenham894

Salisbury ranks 1 of 8 towns we cover in Wiltshire on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 894 to 923, a spread of 29 kWh per kWp. Within Wiltshire that difference is small enough to ignore: where the building sits is not what decides this scheme, your consumption pattern is.

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 SP2

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
Salisbury City Hall - Solar PV Panels	Wiltshire Council	0.18 MW	Roof	Awaiting Construction
Salisbury District Hospital, Odstock Road - Solar Panels	Salisbury NHS Foundation Trust	0.76 MW	Roof	Awaiting Construction
Salisbury District Hospital, Odstock Road - Solar Panels	Salisbury NHS Foundation Trust	0.19 MW	Roof	Awaiting Construction
Salisbury District Hospital, Odstock Road - Solar PV	Salisbury NHS Foundation Trust	0.26 MW	Roof	Awaiting Construction
The Salisbury Hospice, Salisbury District Hospital - Solar PV Panels	Salisbury NHS Foundation Trust	0.21 MW	Roof	Application Submitted

Grid connection through Scottish and Southern Electricity Networks

Scottish and Southern Electricity Networks operates the distribution network across Wiltshire, so the export application goes to them. Anything larger than 3.68 kW per phase falls under G99, which means an application before commissioning rather than a notification afterwards. A constrained network is not the end of a scheme. Capping export costs little when the building already absorbs most of what the roof produces.

Across Wiltshire the planning database records 159 solar schemes totalling 1585 MW, of which 56 are operational (REPD Q1 2026).

Book the survey

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.

Questions about solar in Salisbury

How much does a farm roof near Salisbury generate?: The model gives 923 kWh for every kWp installed here, so 500 kWp comes out at about 462,000 kWh a year before shading losses. A building of roughly 1,485 sqm of clear roof carries it. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Will the rural network around Salisbury take the export?: Scottish and Southern Electricity Networks is the distribution network operator for Wiltshire. Anything above 3.68 kW per phase connects under G99, and the application sets the export limit. Rural supplies are often the binding constraint, so we ask the question before an array is sized.
Is planning permission needed for panels on a farm building near Salisbury?: Usually permitted development covers a roof array. Ground mounted arrays are a different question and are far more likely to need a full application. We put both to Wiltshire before design sign-off.
Has anyone near SP2 already done this?: The planning database records 0 ground mounted and 5 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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