What would a 210 kWp array produce in Bournemouth?

Yes. At 971 kWh per kWp a year, a 210 kWp array on a Bournemouth roof models at around 204,000 kWh. What changes the answer is how much of that the building uses during opening hours rather than exports. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

Is planning permission needed for panels on a Bournemouth 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 Bournemouth, Christchurch and Poole 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 Bournemouth?

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 Bournemouth have capacity for export?

Scottish and Southern Electricity Networks is the distribution network operator for Dorset. 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 Bournemouth

Whether solar pays on a Bournemouth commercial building depends less on the panels than on who owns the roof and who pays the bill. The survey starts with the membrane and the deck: how many years the covering has left, what the roof can carry in ballast, and where plant and its shade rule panels out.

971 kWh per kWp a year at this latitude, so a 210 kWp array models at about 204,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

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Drawing Bournemouth commercial roof

Roof 60 x 32 m, 1,920 m²

Array 210 kWp, east-west

Yield 204,000 kWh/yr

Scale 1:400 / Rev A / BH9

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.

196,455: people in the Bournemouth built-up area (ONS Census 2021)
2,150: office properties on the rating list in Bournemouth, Christchurch and Poole (VOA, March 2025)
4,070: retail properties, 160 of them large-format (VOA, March 2025)
0: named commercial rooftop schemes 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 Dorset

What a flat roof in Bournemouth generates

Modelled irradiation here is 1,236 kWh per square metre a year on a low-tilt array, which works out at 971 kWh for every kWp installed (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). That is around 10 percent above the mean across the towns we cover.

Commercial stock in Bournemouth, Christchurch and Poole

Bournemouth, Christchurch and Poole has 2,150 office premises and 4,070 shops and other retail premises on the non-domestic rating list, according to the Valuation Office Agency. By office stock the district sits in the top quarter of the 318 districts in England and Wales; by retail stock it sits in the top tenth of the 318 districts in England and Wales.

160 of those retail properties are superstores, large food stores, large shops or retail warehouses, together about 421,000 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 550 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 196,455 people, large enough for a retail park or two and a cluster of office buildings (ONS Census 2021 built-up areas).

Surveys run across BH postcodes, BH9 outward.

FIG. 1 What a Bournemouth 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 204,000 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	26	5,460
Feb	42	8,820
Mar	79	16,590
Apr	113	23,730
May	131	27,510
Jun	136	28,560
Jul	137	28,770
Aug	114	23,940
Sep	88	18,480
Oct	53	11,130
Nov	32	6,720
Dec	22	4,620

Source: EU PVGIS v5.2

FIG. 2 Bournemouth against the rest of Dorset

Weymouth1006
Dorchester985
Christchurch981
Bournemouth971
Bridport971
Poole965
Wimborne964
Sherborne924

Bournemouth ranks 4 of 8 towns we cover in Dorset on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 924 to 1006, a spread of 82 kWh per kWp. On a 210 kWp commercial roof that is about 17,220 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

All solar on record near BH9

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
Wimborne Road - Solar Panels	Co-operative Food - Moordown	0.15 MW	Roof	Awaiting Construction

Grid connection through Scottish and Southern Electricity Networks

Connections around Bournemouth are handled by Scottish and Southern Electricity Networks, 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 commercial building uses most of what the roof makes during the working day.

Across Dorset the planning database records 149 solar schemes totalling 1078 MW, of which 47 are operational (REPD Q1 2026).

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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?

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Questions about solar in Bournemouth

What would a 210 kWp array produce in Bournemouth?: Yes. At 971 kWh per kWp a year, a 210 kWp array on a Bournemouth roof models at around 204,000 kWh. What changes the answer is how much of that the building uses during opening hours rather than exports. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Is planning permission needed for panels on a Bournemouth 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 Bournemouth, Christchurch and Poole 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 Bournemouth?: 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 Bournemouth have capacity for export?: Scottish and Southern Electricity Networks is the distribution network operator for Dorset. 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.

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