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Solar panels for warehouses in Derby

What makes a Derby 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.

862 kWh per kWp a year at this latitude, so a 500 kWp array models at about 431,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

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96 m phase 1
Drawing Derby unit
Roof 96 x 62 m
Array 500 kWp
Yield 431,000 kWh/yr
Scale 1:500 / Rev A / DE1

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

Derby / Derbyshire
Midlands logistics park beside a motorway junction, several roofs carrying arrays
Industrial stock of the kind we survey across East Midlands.

Logistics solar PV across Derbyshire

What a roof in Derby actually generates

Modelled irradiation at this latitude is 1100 kWh per square metre a year in the plane of a shallow-pitched roof, which works out at 862 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 towns we cover, so the case rests on your consumption pattern rather than on the weather.

Distribution stock around Derby clusters on A50, A38 and A52, which is where the large single-let roofs are.

Surveys run across DE postcodes, DE1 outward.

Derby is the planning authority for most sites here, and the built-up area holds a population of about 275,575, which is large enough to pull in the regional distribution centres that come with the biggest roofs (ONS Census 2021 built-up areas).

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

What a Derby roof makes, month by month

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

0255075100Jan: 22 kWh per kWpJanFeb: 36 kWh per kWpFebMar: 71 kWh per kWpMarApr: 100 kWh per kWpAprMay: 119 kWh per kWpMayJun: 117 kWh per kWpJunJul: 120 kWh per kWpJul120 kWh Aug: 103 kWh per kWpAugSep: 79 kWh per kWpSepOct: 48 kWh per kWpOctNov: 28 kWh per kWpNovDec: 20 kWh per kWpDec

Jul produces 6.0 times what Dec does on the same roof. A 500 kWp array here models at about 431,000 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
Jan2211,000
Feb3618,000
Mar7135,500
Apr10050,000
May11959,500
Jun11758,500
Jul12060,000
Aug10351,500
Sep7939,500
Oct4824,000
Nov2814,000
Dec2010,000
Source: EU PVGIS v5.2
FIG. 2 Derby against the rest of Derbyshire
  • Long Eaton866
  • Derby862
  • Swadlincote856
  • Ilkeston855
  • Belper850
  • Matlock844
  • Chesterfield843
  • Buxton805

Derby ranks 2 of 8 towns we cover in Derbyshire on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 805 to 866, a spread of 61 kWh per kWp. On a 500 kWp array that is about 30,500 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

Solar already consented near DE1

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
Derbion Management Suite - Roof Mounted Solar panels The Wilmslow (No 3) Limited Partner 0.31 MW Roof Awaiting Construction
Toyota Solar Farm - Solar Farm Toyota Motor Manufacturing UK Limited 16 MW Roof Application Submitted
Florence Nightingale Community Hospital, London Road - Solar Panels University Hospitals of Derby and Burton NHS Foundation Trust 0.74 MW Roof Awaiting Construction
Landau Forte College, Fox Street - Solar Panels eEnergy Group PLC 0.49 MW Roof Application Submitted

Grid connection through National Grid Electricity Distribution

Connections around Derby 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 warehouse uses most of what the roof makes during the working day.

Across Derbyshire the planning database records 144 solar schemes totalling 904 MW, of which 27 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 Derby

How much does a warehouse roof in Derby generate?
The model gives 862 kWh for every kWp installed here, so 500 kWp comes out at about 431,000 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 Derby have capacity?
National Grid Electricity Distribution is the distribution network operator for Derbyshire. 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 Derby unit?
Usually permitted development covers it. We still put the question to Derby before design sign-off, and we tell you early if a full application is needed rather than discovering it late.
Has anyone near DE1 already done this?
The planning database records 4 solar schemes in this postcode district, 4 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.

Nearby

All Derbyshire locations