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Solar panels for warehouses in Chorley

What makes a Chorley scheme work is rarely the panels. It is the condition of the roof underneath them. Each survey records the cladding profile, the usable area once rooflights and plant are removed, and the export limit worth applying for.

787 kWh per kWp a year at this latitude, so a 500 kWp array models at about 394,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

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96 m phase 1
Drawing Chorley unit
Roof 96 x 62 m
Array 500 kWp
Yield 394,000 kWh/yr
Scale 1:500 / Rev A / PR7

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

Chorley / Lancashire
Industrial estate in the North West with solar arrays on several unit roofs
Industrial stock of the kind we survey across North West.

Logistics solar PV across Lancashire

What a roof in Chorley actually generates

Modelled irradiation at this latitude is 1006 kWh per square metre a year in the plane of a shallow-pitched roof, which works out at 787 kWh for every kWp installed (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). That is about 11 percent below the mean across the towns we cover, so the case here leans harder on how much you use on site rather than on raw generation.

Distribution stock around Chorley clusters on M6 J27, M6 J28 and M61 J8, which is where the large single-let roofs are.

Surveys run across PR postcodes, PR7 outward.

Chorley is the planning authority for most sites here, and the built-up area holds a population of about 39,535, so the stock here runs to trade counters, light industrial terraces and the occasional larger shed (ONS Census 2021 built-up areas).

FIG. 1 What a Chorley roof makes, month by month

What a Chorley 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: 33 kWh per kWpFebMar: 65 kWh per kWpMarApr: 97 kWh per kWpAprMay: 114 kWh per kWpMay114 kWh Jun: 111 kWh per kWpJunJul: 110 kWh per kWpJulAug: 93 kWh per kWpAugSep: 70 kWh per kWpSepOct: 42 kWh per kWpOctNov: 23 kWh per kWpNovDec: 14 kWh per kWpDec

May produces 8.1 times what Dec does on the same roof. A 500 kWp array here models at about 394,000 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
Feb3316,500
Mar6532,500
Apr9748,500
May11457,000
Jun11155,500
Jul11055,000
Aug9346,500
Sep7035,000
Oct4221,000
Nov2311,500
Dec147,000
Source: EU PVGIS v5.2
FIG. 2 Chorley against the rest of Lancashire
  • Blackpool888
  • Lytham St Anne's878
  • Preston805
  • Lancaster797
  • Chorley787
  • Accrington783
  • Blackburn782
  • Burnley774

Chorley ranks 5 of 8 towns we cover in Lancashire on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 774 to 888, a spread of 114 kWh per kWp. On a 500 kWp array that is about 57,000 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

Solar already consented near PR7

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
Parklands High School, Southport Road - Solar Photovoltaic Panels Parklands High School 0.29 MW Roof Awaiting Construction
Best Western Park Hall, Hotel Park Hall Road - Solar Panels Ashcroft Electrical Services Limited 0.2 MW Roof Awaiting Construction

Grid connection through Electricity North West

Electricity North West operates the distribution network across Lancashire, 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 Lancashire the planning database records 161 solar schemes totalling 521 MW, of which 25 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 Chorley

How much does a warehouse roof in Chorley generate?
The model gives 787 kWh for every kWp installed here, so 500 kWp comes out at about 394,000 kWh a year before any shading losses. You need roughly 1,485 sqm of clear roof to fit it. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Does the grid around Chorley have capacity?
Electricity North West is the distribution network operator for Lancashire. Anything above 3.68 kW per phase connects under G99, and the application sets the export limit. We submit it as part of the design.
Is planning permission needed for panels on a Chorley unit?
Usually permitted development covers it. We still put the question to Chorley before design sign-off, and we tell you early if a full application is needed rather than discovering it late.
Has anyone near PR7 already done this?
The planning database records 2 solar schemes in this postcode district, 2 of them roof mounted. That matters less as proof that it works and more as evidence of how the local network has been treating export applications. Source: Renewable Energy Planning Database, Q1 2026.

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