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Solar panels for farms in Chatham

Farm buildings around Chatham carry broad, shallow roofs that were put up for storage and stock, not for generation. The survey starts on the covering: fibre cement or steel, its remaining life, the purlin spacing and what the frame will carry.

920 kWh per kWp a year at this latitude, so a 500 kWp array models at about 460,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

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96 m phase 1
Drawing Chatham unit
Roof 96 x 62 m
Array 500 kWp
Yield 460,000 kWh/yr
Scale 1:500 / Rev A / ME5

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

Chatham / Kent
South East farmland with solar arrays on farm buildings
Industrial stock of the kind we survey across South East.

Solar for agricultural buildings across Kent

What a farm roof near Chatham generates

Modelled irradiation at this latitude is 1180 kWh per square metre a year in the plane of a shallow-pitched roof, which works out at 920 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.

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 ME postcodes, ME5 outward.

Medway 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 Chatham roof makes, month by month

What a Chatham roof makes, month by month

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

050100Jan: 24 kWh per kWpJanFeb: 38 kWh per kWpFebMar: 73 kWh per kWpMarApr: 107 kWh per kWpAprMay: 122 kWh per kWpMayJun: 127 kWh per kWpJunJul: 128 kWh per kWpJul128 kWh Aug: 108 kWh per kWpAugSep: 86 kWh per kWpSepOct: 53 kWh per kWpOctNov: 31 kWh per kWpNovDec: 22 kWh per kWpDec

Jul produces 5.8 times what Dec does on the same roof. A 500 kWp array here models at about 460,000 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
Jan2412,000
Feb3819,000
Mar7336,500
Apr10753,500
May12261,000
Jun12763,500
Jul12864,000
Aug10854,000
Sep8643,000
Oct5326,500
Nov3115,500
Dec2211,000
Source: EU PVGIS v5.2
FIG. 2 Chatham against the rest of Kent
  • Dover972
  • Canterbury961
  • Maidstone930
  • Tunbridge Wells930
  • Tonbridge927
  • Gravesend926
  • Chatham920
  • Sevenoaks920
  • Dartford915

Chatham ranks 10 of 12 towns we cover in Kent on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 915 to 990, a spread of 75 kWh per kWp. On a 500 kWp array that is about 37,500 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 UK Power Networks

UK Power Networks is the network operator here, and their answer on export capacity shapes the design. Any commercial array above 3.68 kW per phase connects under G99 rather than G98, and the application fixes what you are allowed to push back onto the network. If the local network is tight, limiting export rarely breaks the case here: most of the generation is consumed on site while the building is working.

Across Kent the planning database records 237 solar schemes totalling 2072 MW, of which 45 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.

We pass your details to our MCS-certified installation partner so they can quote. Read the privacy notice.

Questions about solar in Chatham

Is there enough sun around Chatham to make this work?
Modelled at 920 kWh per kWp a year for a shallow-pitched roof at this latitude, which puts a 500 kWp array at roughly 460,000 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 Chatham?
Only UK Power 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 Medway?
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 Medway either way.

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