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

Modelled at 879 kWh per kWp a year for a low-tilt array at this latitude, a 210 kWp system comes out at roughly 185,000 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.

Do we need planning permission for solar on a commercial building in Cheltenham?

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 Cheltenham 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.

Does solar help a Cheltenham landlord meet MEES?

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.

Which network operator handles the connection in Cheltenham?

Capacity varies street by street and only National Grid Electricity Distribution can answer it for your connection. We ask early, because an export-limited offer changes the design rather than ending the scheme, and most commercial buildings use most of what they generate anyway.

Commercial building solar panels in Cheltenham

A flat commercial roof in Cheltenham is usually the largest surface a building owns and the one nobody is asked to manage. What decides a scheme is the roof covering, the parapet height and the plant layout, which is why the survey happens on the roof rather than from a satellite image.

879 kWh per kWp a year at this latitude, so a 210 kWp array models at about 185,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

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Drawing Cheltenham commercial roof

Roof 60 x 32 m, 1,920 m²

Array 210 kWp, east-west

Yield 185,000 kWh/yr

Scale 1:400 / Rev A / GL50

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.

115,940: people in the Cheltenham built-up area (ONS Census 2021)
1,210: office properties on the rating list in Cheltenham (VOA, March 2025)
1,090: retail properties, 60 of them large-format (VOA, March 2025)
1: named commercial rooftop scheme on the planning record nearby (REPD, Q1 2026)

The commercial edge of a South West market town, with rooftop solar on several buildings — Commercial stock of the kind we survey across South West. Generated illustration, not a named site.

Solar PV for commercial property across Gloucestershire

What a flat roof in Cheltenham generates

Modelled irradiation here is 1,124 kWh per square metre a year on a low-tilt array, which works out at 879 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 Cheltenham

Cheltenham has 1,210 office premises and 1,090 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 below the median of the 318 districts in England and Wales.

The big roofs are in the 60 large-format retail units, superstores and retail warehouses in the district, about 159,000 square metres of floorspace under largely single storey roofs.

The same list carries 180 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.

Commercial rooftop solar already planned near Cheltenham

The Renewable Energy Planning Database records one roof-mounted scheme on public sector buildings in this postcode district. These are other organisations' projects, listed from the public record, not ours.

Scheme	Applicant	Type	Capacity	Status
Sandfields Care Home, St Georges Road	Sandfields Care Home	civic	0.15 MW	Awaiting Construction

The built-up area holds about 115,940 people, large enough for a retail park or two and a cluster of office buildings (ONS Census 2021 built-up areas).

We arrange surveys across the GL postcode area, starting from GL50.

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

Jul produces 6.2 times what Dec does on the same roof. A 210 kWp array here models at about 185,000 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	23	4,830
Feb	37	7,770
Mar	72	15,120
Apr	103	21,630
May	119	24,990
Jun	122	25,620
Jul	123	25,830
Aug	102	21,420
Sep	80	16,800
Oct	49	10,290
Nov	29	6,090
Dec	20	4,200

Source: EU PVGIS v5.2

FIG. 2 Cheltenham against the rest of Gloucestershire

Lydney905
Cirencester892
Stroud887
Cheltenham879
Tewkesbury878
Gloucester870

Cheltenham ranks 4 of 6 towns we cover in Gloucestershire on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 870 to 905, a spread of 35 kWh per kWp. Within Gloucestershire 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 National Grid Electricity Distribution

National Grid Electricity Distribution operates the distribution network across Gloucestershire, 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 Gloucestershire the planning database records 207 solar schemes totalling 1592 MW, of which 39 are operational (REPD Q1 2026).

All solar on record near GL50

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
Sandfields Care Home, St Georges Road - Solar PV Panels	Sandfields Care Home	0.15 MW	Roof	Awaiting Construction
St Pauls Medical Centre, Swindon Road - Solar Panels	St Pauls Medical Centre	0.16 MW	Roof	Awaiting Construction
Ladies College Swimming Pool, Malvern Road - Solar Panels	Ladies College Swimming Pool	0.16 MW	Roof	Awaiting Construction

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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 Cheltenham

Is there enough sun in Cheltenham for a commercial roof array?: Modelled at 879 kWh per kWp a year for a low-tilt array at this latitude, a 210 kWp system comes out at roughly 185,000 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.
Do we need planning permission for solar on a commercial building in Cheltenham?: 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 Cheltenham 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.
Does solar help a Cheltenham landlord meet MEES?: 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.
Which network operator handles the connection in Cheltenham?: Capacity varies street by street and only National Grid Electricity Distribution can answer it for your connection. We ask early, because an export-limited offer changes the design rather than ending the scheme, and most commercial buildings use most of what they generate anyway.

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