Is there enough sun in Bedford for a commercial roof array?

Modelled at 900 kWh per kWp a year for a low-tilt array at this latitude, a 210 kWp system comes out at roughly 189,000 kWh a year before shading. It needs about 1,390 m² of flat roof once the edge strip, plant and walkways are kept clear. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

Is planning permission needed for panels on a Bedford office or shop?

Usually not a full application. In England, panels on the roof of a non-domestic building are permitted development under Class J of Part 14 of the General Permitted Development Order, with no capacity cap since December 2023. Above 50 kW, which covers most commercial arrays, you must first apply to Bedford for a determination on prior approval of the design and appearance, in particular glare on neighbouring land. On a flat roof panels may stand no more than 1 metre above the roof and must sit at least 1 metre from its edge, and listed buildings and scheduled monuments are excluded. See our planning permission guide for the detail.

Will rooftop solar improve the EPC rating of a let building in Bedford?

It can. A non-domestic EPC is an asset rating, and on-site generation counts in the calculation, so an array usually lifts the score. Let property in England and Wales must be EPC E or better today. The government's interim response of 18 June 2026 proposes EPC B, where cost effective, from 2031 for let buildings over 1,000 m², and drops the EPC C step once planned for 2027. How far solar moves a particular building depends on its fabric and services, which is why the EPC assessor models it before anything is fitted.

Does the grid around Bedford have capacity for export?

UK Power Networks is the distribution network operator for Bedfordshire. Arrays above 3.68 kW per phase connect under G99, and the application sets the export limit. It is part of the design work we arrange.

Commercial building solar panels in Bedford

Whether solar pays on a Bedford commercial building depends less on the panels than on who owns the roof and who pays the bill. Each survey records the usable area once edge strips, plant and walkways are taken out, the load the deck can take, and whether the lease lets the occupier alter the roof.

900 kWh per kWp a year at this latitude, so a 210 kWp array models at about 189,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

Book a roof survey in Bedford

Drawing Bedford commercial roof

Roof 60 x 32 m, 1,920 m²

Array 210 kWp, east-west

Yield 189,000 kWh/yr

Scale 1:400 / Rev A / MK40

Illustrative layout for a flat commercial roof of this size, with plant, shade and access kept clear. Your own figures come from the roof survey.

97,235: people in the Bedford built-up area (ONS Census 2021)
1,060: office properties on the rating list in Bedford (VOA, March 2025)
1,190: retail properties, 70 of them large-format (VOA, March 2025)
0: named commercial rooftop schemes on the planning record nearby (REPD, Q1 2026)

Offices and a retail park on the edge of a town in the east of England, several roofs carrying solar — Commercial stock of the kind we survey across East of England. Generated illustration, not a named site.

Solar PV for commercial property across Bedfordshire

What a flat roof in Bedford generates

Modelled irradiation here is 1,153 kWh per square metre a year on a low-tilt array, which works out at 900 kWh for every kWp installed (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). That is within a few percent of the mean across the towns we cover, so the weather is not what decides the case here. Opening hours are.

Commercial stock in Bedford

Bedford has 1,060 office premises and 1,190 shops and other retail premises on the non-domestic rating list, according to the Valuation Office Agency. By office stock the district sits above the median of the 318 districts in England and Wales; by retail stock it sits above the median of the 318 districts in England and Wales.

70 of those retail properties are superstores, large food stores, large shops or retail warehouses, together about 151,000 square metres. Single storey boxes of that size are where most commercial rooftop solar actually gets built, because the roof is big, flat or shallow, and uninterrupted.

The same list carries 260 hotel, leisure and assembly properties in the district. Leisure centres and hotels run seven days a week, which puts weekend generation to use that an office would export.

Source: Valuation Office Agency, Non-domestic rating: business floorspace, 31 March 2025 (published December 2025), counts and floorspace by special category code and local authority district, England and Wales.

The built-up area holds about 97,235 people, large enough for a retail park or two and a cluster of office buildings (ONS Census 2021 built-up areas).

Surveys run across MK postcodes, MK40 outward.

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

Jul produces 5.7 times what Dec does on the same roof. A 210 kWp array here models at about 189,000 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	210 kWp array
Jan	25	5,250
Feb	39	8,190
Mar	73	15,330
Apr	103	21,630
May	120	25,200
Jun	123	25,830
Jul	125	26,250
Aug	106	22,260
Sep	82	17,220
Oct	52	10,920
Nov	31	6,510
Dec	22	4,620

Source: EU PVGIS v5.2

FIG. 2 Bedford against the rest of Bedfordshire

Biggleswade902
Sandy902
Bedford900
Luton899
Flitwick899
Dunstable893
Leighton Buzzard892

Bedford ranks 3 of 7 towns we cover in Bedfordshire on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 892 to 902, a spread of 10 kWh per kWp. Within Bedfordshire 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

All solar on record near MK40

Every scheme in this postcode district in the government's Renewable Energy Planning Database, Q1 2026, ground and roof mounted, commercial or not. None of them is ours. Together they are a fair guide to how the local network has been treating export applications.

Scheme	Operator	Capacity	Mounting	Status
Bedford School, De Parys Avenue - Solar Panels	Bedford School	0.21 MW	Roof	Application Submitted

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 Bedfordshire the planning database records 89 solar schemes totalling 837 MW, of which 16 are operational (REPD Q1 2026).

Book the survey

Send us the postcode

Tell us where the building is, roughly how big the roof is, and whether you own it or lease it. 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.

Your name Company Email Phone Site postcode Building type Your interest in the building Roof area Annual electricity spend What are you looking at?

Anything we should know about the roof?

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

Questions about solar in Bedford

Is there enough sun in Bedford for a commercial roof array?: Modelled at 900 kWh per kWp a year for a low-tilt array at this latitude, a 210 kWp system comes out at roughly 189,000 kWh a year before shading. It needs about 1,390 m² of flat roof once the edge strip, plant and walkways are kept clear. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Is planning permission needed for panels on a Bedford office or shop?: Usually not a full application. In England, panels on the roof of a non-domestic building are permitted development under Class J of Part 14 of the General Permitted Development Order, with no capacity cap since December 2023. Above 50 kW, which covers most commercial arrays, you must first apply to Bedford for a determination on prior approval of the design and appearance, in particular glare on neighbouring land. On a flat roof panels may stand no more than 1 metre above the roof and must sit at least 1 metre from its edge, and listed buildings and scheduled monuments are excluded. See our planning permission guide for the detail.
Will rooftop solar improve the EPC rating of a let building in Bedford?: It can. A non-domestic EPC is an asset rating, and on-site generation counts in the calculation, so an array usually lifts the score. Let property in England and Wales must be EPC E or better today. The government's interim response of 18 June 2026 proposes EPC B, where cost effective, from 2031 for let buildings over 1,000 m², and drops the EPC C step once planned for 2027. How far solar moves a particular building depends on its fabric and services, which is why the EPC assessor models it before anything is fitted.
Does the grid around Bedford have capacity for export?: UK Power Networks is the distribution network operator for Bedfordshire. Arrays above 3.68 kW per phase connect under G99, and the application sets the export limit. It is part of the design work we arrange.

Nearby

All Bedfordshire locations