How much does a farm roof near Filton generate?

The model gives 895 kWh for every kWp installed here, so 500 kWp comes out at about 448,000 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 Filton take the export?

National Grid Electricity Distribution is the distribution network operator for Bristol. 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 Filton?

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 Bristol, City of before design sign-off.

Has anyone near BS34 already done this?

The planning database records 0 ground mounted and 6 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 Filton

The case for solar on a Filton holding turns on how much of the output the farm uses itself, not on how much the roof makes. The survey starts on the covering: fibre cement or steel, its remaining life, the purlin spacing and what the frame will carry.

895 kWh per kWp a year at this latitude, so a 500 kWp array models at about 448,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

Book a roof survey in Filton

Drawing Filton unit

Roof 96 x 62 m

Array 500 kWp

Yield 448,000 kWh/yr

Scale 1:500 / Rev A / BS34

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

Filton / Bristol

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

Solar for agricultural buildings across Bristol

What a farm roof near Filton generates

Modelled irradiation at this latitude is 1147 kWh per square metre a year in the plane of a shallow-pitched roof, which works out at 895 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.

6 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 Filton is higher than the record shows.

Surveys run across BS postcodes, BS34 outward.

Bristol, City of 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 Filton 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 448,000 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	39	19,500
Mar	73	36,500
Apr	105	52,500
May	121	60,500
Jun	123	61,500
Jul	124	62,000
Aug	103	51,500
Sep	82	41,000
Oct	50	25,000
Nov	29	14,500
Dec	21	10,500

Source: EU PVGIS v5.2

FIG. 2 Filton against the rest of Bristol

Bishopston908
Bedminster906
Hengrove903
Keynsham902
Filton895

Filton ranks 5 of 5 towns we cover in Bristol on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 895 to 908, a spread of 13 kWh per kWp. Within Bristol 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 BS34

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
Amcor Flexibles	Langley Eco	1.7 MW	Roof	Operational
Rolls Royce Filton Campus Building 184	Innogy (previously BELECTRIC Solar)	1.4 MW	Roof	Operational
Rolls Royce Filton Campus Building 185	Innogy (previously BELECTRIC Solar)	1.8 MW	Roof	Operational
Carshop Bristol, Bolingbroke Way - Solar Panels	Sytner Group Limited	0.15 MW	Roof	Awaiting Construction
Dunelm, Centaurus Road - Solar Panels	Dunelm Group Limited	0.18 MW	Roof	Awaiting Construction
Abbey Wood Retail Park, Station Road - Solar Panels	Invesco Real Estate	0.32 MW	Roof	Awaiting Construction

Grid connection through National Grid Electricity Distribution

Connections around Filton are handled by National Grid Electricity Distribution, 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.

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 Filton

How much does a farm roof near Filton generate?: The model gives 895 kWh for every kWp installed here, so 500 kWp comes out at about 448,000 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 Filton take the export?: National Grid Electricity Distribution is the distribution network operator for Bristol. 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 Filton?: 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 Bristol, City of before design sign-off.
Has anyone near BS34 already done this?: The planning database records 0 ground mounted and 6 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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