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Solar panels for farms in Oldham

The case for solar on a Oldham 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.

771 kWh per kWp a year at this latitude, so a 500 kWp array models at about 386,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

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96 m phase 1
Drawing Oldham unit
Roof 96 x 62 m
Array 500 kWp
Yield 386,000 kWh/yr
Scale 1:500 / Rev A / OL4

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

Oldham / Greater Manchester
Farmland in the North West with solar arrays on farm building roofs
Industrial stock of the kind we survey across North West.

Solar for agricultural buildings across Greater Manchester

What a farm roof near Oldham generates

Modelled irradiation at this latitude is 987 kWh per square metre a year in the plane of a shallow-pitched roof, which works out at 771 kWh for every kWp installed (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). That is about 13 percent below the mean across the areas we cover, so the case here rests on using the output on the holding rather than exporting it.

No solar scheme is recorded in this postcode district in the planning database. On a farm that usually means nothing has been built above the reporting threshold rather than that nothing has been built, because a roof array on a shed rarely appears in it.

Surveys run across OL postcodes, OL4 outward.

Oldham 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 Oldham roof makes, month by month

What a Oldham roof makes, month by month

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

0255075100Jan: 16 kWh per kWpJanFeb: 32 kWh per kWpFebMar: 64 kWh per kWpMarApr: 93 kWh per kWpAprMay: 110 kWh per kWpMay110 kWh Jun: 109 kWh per kWpJunJul: 107 kWh per kWpJulAug: 91 kWh per kWpAugSep: 69 kWh per kWpSepOct: 42 kWh per kWpOctNov: 23 kWh per kWpNovDec: 15 kWh per kWpDec

May produces 7.3 times what Dec does on the same roof. A 500 kWp array here models at about 386,000 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
Jan168,000
Feb3216,000
Mar6432,000
Apr9346,500
May11055,000
Jun10954,500
Jul10753,500
Aug9145,500
Sep6934,500
Oct4221,000
Nov2311,500
Dec157,500
Source: EU PVGIS v5.2
FIG. 2 Oldham against the rest of Greater Manchester
  • Altrincham816
  • Bolton801
  • Salford794
  • Manchester788
  • Bury788
  • Stockport785
  • Rochdale771
  • Oldham771
  • Ashton-under-Lyne769

Oldham ranks 9 of 10 towns we cover in Greater Manchester on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 769 to 828, a spread of 59 kWh per kWp. On a 500 kWp array that is about 29,500 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

Grid connection through Electricity North West

Electricity North West operates the distribution network across Greater Manchester, 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 Greater Manchester the planning database records 118 solar schemes totalling 110 MW, of which 11 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 Oldham

What would a 500 kWp array produce on a farm near Oldham?
Yes, and the figure matters more than the sunshine. At 771 kWh per kWp a year, a 500 kWp array on a Oldham holding models at around 386,000 kWh. What changes the answer is how much of that the farm uses itself. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Which network operator handles the connection around Oldham?
Applications go to Electricity North West, who run the network across Greater Manchester. On a farm the incoming supply matters as much as their answer: a single phase supply caps what can be installed whatever the roof would take.
What does Oldham require for solar on an agricultural building?
Roof-mounted panels on an agricultural building often fall under permitted development, subject to limits on projection above the roof plane and to the building not being listed or in a conservation area or National Park. We confirm the position with Oldham before the design is finalised.

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