How much does a farm roof near Corby generate?

The model gives 892 kWh for every kWp installed here, so 500 kWp comes out at about 446,000 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 Corby take the export?

National Grid Electricity Distribution is the distribution network operator for Northamptonshire. 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 Corby?

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 North Northamptonshire before design sign-off.

Has anyone near NN17 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 Corby

Most holdings around Corby 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.

892 kWh per kWp a year at this latitude, so a 500 kWp array models at about 446,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

Book a roof survey in Corby

Drawing Corby unit

Roof 96 x 62 m

Array 500 kWp

Yield 446,000 kWh/yr

Scale 1:500 / Rev A / NN17

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

Corby / Northamptonshire

Midlands arable farmland with solar on farm building roofs — Industrial stock of the kind we survey across East Midlands.

Farm building solar PV across Northamptonshire

What a farm roof near Corby generates

Modelled irradiation at this latitude is 1140 kWh per square metre a year in the plane of a shallow-pitched roof, which works out at 892 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 Corby is higher than the record shows.

We survey holdings across the NN postcode area, starting from NN17.

North Northamptonshire 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 Corby 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 446,000 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	24	12,000
Feb	38	19,000
Mar	73	36,500
Apr	103	51,500
May	121	60,500
Jun	121	60,500
Jul	123	61,500
Aug	105	52,500
Sep	82	41,000
Oct	51	25,500
Nov	30	15,000
Dec	21	10,500

Source: EU PVGIS v5.2

FIG. 2 Corby against the rest of Northamptonshire

Rushden900
Towcester897
Wellingborough896
Kettering895
Northampton893
Corby892
Daventry890

Corby ranks 6 of 7 towns we cover in Northamptonshire on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 890 to 900, a spread of 10 kWh per kWp. Within Northamptonshire 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 National Grid Electricity Distribution

Connections around Corby 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.

Across Northamptonshire the planning database records 133 solar schemes totalling 1932 MW, of which 25 are operational (REPD Q1 2026).

Solar already consented near NN17

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
Jacksons Bakery - Solar Panels	Jackson Bakery	0.63 MW	Roof	Under Construction
Oakland International, Eismann Way - Solar Panels	BeBa Energy UK Limited	0.64 MW	Roof	Awaiting Construction
Ceva Logistics, Earlstrees Road - Solar Panels	Standard Life Investments Property Holdings	0.49 MW	Roof	Awaiting Construction
Corby East Midlands International Pool, Parkland Gateway - Solar Panels	North Northamptonshire Council	0.3 MW	Roof	Awaiting Construction
Curver Way - Solar Panels	Harvest Green Developments	1 MW	Roof	Awaiting Construction
Southern Group Laboratory, Cavendish Courtyard - Solar Panels	Southern Group Laboratory Limited	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 Corby

How much does a farm roof near Corby generate?: The model gives 892 kWh for every kWp installed here, so 500 kWp comes out at about 446,000 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 Corby take the export?: National Grid Electricity Distribution is the distribution network operator for Northamptonshire. 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 Corby?: 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 North Northamptonshire before design sign-off.
Has anyone near NN17 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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