Is there enough sun around Chippenham to make this work?

Modelled at 894 kWh per kWp a year for a shallow-pitched roof at this latitude, which puts a 500 kWp array at roughly 447,000 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 Chippenham?

Only Scottish and Southern Electricity Networks 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 Wiltshire?

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 Wiltshire either way.

Has anyone near SN15 already done this?

The planning database records 4 ground mounted and 2 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 Chippenham

A Chippenham farm buys electricity at the worst rate of the day in exactly the hours its roof could be generating. The survey starts on the covering: fibre cement or steel, its remaining life, the purlin spacing and what the frame will carry.

894 kWh per kWp a year at this latitude, so a 500 kWp array models at about 447,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

Book a roof survey in Chippenham

Drawing Chippenham unit

Roof 96 x 62 m

Array 500 kWp

Yield 447,000 kWh/yr

Scale 1:500 / Rev A / SN15

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

Chippenham / Wiltshire

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

Solar for agricultural buildings across Wiltshire

What a farm roof near Chippenham generates

Modelled irradiation at this latitude is 1144 kWh per square metre a year in the plane of a shallow-pitched roof, which works out at 894 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 4 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 49.9 MW, with the largest at 69.8 MW. Source: Renewable Energy Planning Database, Q1 2026.

2 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 Chippenham is higher than the record shows.

Surveys run across SN postcodes, SN15 outward.

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 Chippenham roof makes, month by month

Jul produces 5.9 times what Dec does on the same roof. A 500 kWp array here models at about 447,000 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	25	12,500
Feb	38	19,000
Mar	73	36,500
Apr	104	52,000
May	121	60,500
Jun	122	61,000
Jul	124	62,000
Aug	104	52,000
Sep	81	40,500
Oct	50	25,000
Nov	30	15,000
Dec	21	10,500

Source: EU PVGIS v5.2

FIG. 2 Chippenham against the rest of Wiltshire

Salisbury923
Melksham912
Warminster912
Trowbridge909
Devizes906
Marlborough900
Swindon899
Chippenham894

Chippenham ranks 8 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

Grid connection through Scottish and Southern Electricity Networks

Connections around Chippenham are handled by Scottish and Southern Electricity Networks, which sets the export limit for the site. Above 3.68 kW per phase the connection runs under G99, so the export limit is agreed in advance rather than assumed. Where the local network is constrained, an export-limited connection usually still makes the scheme work, because a farm uses most of what the roof makes during the working day.

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

Solar already consented near SN15

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
Lake Farm	AEE Renewables	5 MW	Ground	Operational
Bradenstoke solar park	Defence Infrastructure Organisation / BSR	69.8 MW	Ground	Operational
Wick Farm Melksham Substation	JBM Solar Projects	49.9 MW	Ground	Under Construction
Forest Gate - Solar Farm & Battery Storage	Eden Renewables	49.9 MW	Ground	Awaiting Construction
Parsonage Way - Solar Panels	Wavin Plastic Limited	1.6 MW	Roof	Awaiting Construction
Wiltshire College, Lackham - Solar Panels	Wessex Energy Solutions	0.32 MW	Roof	Awaiting Construction

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 Chippenham

Is there enough sun around Chippenham to make this work?: Modelled at 894 kWh per kWp a year for a shallow-pitched roof at this latitude, which puts a 500 kWp array at roughly 447,000 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 Chippenham?: Only Scottish and Southern Electricity Networks 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 Wiltshire?: 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 Wiltshire either way.
Has anyone near SN15 already done this?: The planning database records 4 ground mounted and 2 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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