How much does a warehouse roof in Didcot generate?

The model gives 913 kWh for every kWp installed here, so 500 kWp comes out at about 457,000 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 Didcot have capacity?

Scottish and Southern Electricity Networks is the distribution network operator for Oxfordshire. 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 Didcot unit?

Usually permitted development covers it. We still put the question to South Oxfordshire before design sign-off, and we tell you early if a full application is needed rather than discovering it late.

Has anyone near OX11 already done this?

The planning database records 6 solar schemes in this postcode district, 6 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.

Solar panels for warehouses in Didcot

A Didcot warehouse roof sits idle through exactly the hours its occupier buys the most expensive electricity. What decides a scheme here is the state of the covering and the load path, which is why the survey starts on the roof rather than in a spreadsheet.

913 kWh per kWp a year at this latitude, so a 500 kWp array models at about 457,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

Book a roof survey in Didcot

Drawing Didcot unit

Roof 96 x 62 m

Array 500 kWp

Yield 457,000 kWh/yr

Scale 1:500 / Rev A / OX11

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

Didcot / Oxfordshire

Home Counties distribution estate with solar arrays on several unit roofs — Industrial stock of the kind we survey across South East.

Logistics solar PV across Oxfordshire

What a roof in Didcot actually generates

Modelled irradiation at this latitude is 1169 kWh per square metre a year in the plane of a shallow-pitched roof, which works out at 913 kWh for every kWp installed (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). That is around 3 percent above the mean across the towns we cover, which is as good as UK rooftop gets outside the south coast.

Distribution stock around Didcot clusters on A34 and A4130, which is where the large single-let roofs are.

Surveys run across OX postcodes, OX11 outward.

South Oxfordshire is the planning authority for most sites here, and the built-up area holds a population of about 34,600, 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 Didcot roof makes, month by month

Jul produces 6.0 times what Dec does on the same roof. A 500 kWp array here models at about 457,000 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	26	13,000
Feb	39	19,500
Mar	75	37,500
Apr	106	53,000
May	122	61,000
Jun	125	62,500
Jul	127	63,500
Aug	107	53,500
Sep	84	42,000
Oct	52	26,000
Nov	30	15,000
Dec	21	10,500

Source: EU PVGIS v5.2

FIG. 2 Didcot against the rest of Oxfordshire

Didcot913
Abingdon904
Witney902
Henley-on-Thames899
Oxford895
Bicester895
Banbury891
Thame891

Didcot ranks 1 of 8 towns we cover in Oxfordshire on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 891 to 913, a spread of 22 kWh per kWp. Within Oxfordshire 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 Scottish and Southern Electricity Networks

Scottish and Southern Electricity Networks operates the distribution network across Oxfordshire, 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 Oxfordshire the planning database records 149 solar schemes totalling 2544 MW, of which 31 are operational (REPD Q1 2026).

Solar already consented near OX11

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
Avon Road Car Park - Solar Photovoltaic Carport System	Science and Technology Facilities Council	1.62 MW	Roof	Operational
South Car Park - Solar photovoltaic carport system	Science and Technology Facilities Council	n/a	Roof	Operational
Rutherford Appleton Laboratory	The Science and Technology Facilities Council	1.6 MW	Roof	Awaiting Construction
Rutherford Appleton Laboratory, Building R8 & R9, Harwell - Solar Panels	Science & Technology Facilities Council	0.26 MW	Roof	Application Withdrawn
Rutherford Appleton Laboratory, Building R40, Harwell - Solar Panels	Science and Technology Facilities Council	0.2 MW	Roof	Application Withdrawn
Rutherford Appleton Laboratory, Building R1, Harwell - Solar Panels	Science and Technology Facilities Council	0.42 MW	Roof	Application Withdrawn

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 Didcot

How much does a warehouse roof in Didcot generate?: The model gives 913 kWh for every kWp installed here, so 500 kWp comes out at about 457,000 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 Didcot have capacity?: Scottish and Southern Electricity Networks is the distribution network operator for Oxfordshire. 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 Didcot unit?: Usually permitted development covers it. We still put the question to South Oxfordshire before design sign-off, and we tell you early if a full application is needed rather than discovering it late.
Has anyone near OX11 already done this?: The planning database records 6 solar schemes in this postcode district, 6 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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