Commercial building solar panels in Wimborne
An office or store in Wimborne buys most of its electricity between eight in the morning and six at night, which is when a roof array generates. We check the covering and the lease together, because a roof with eight years of membrane left and a tenant with a break in three changes the answer.
964 kWh per kWp a year at this latitude, so a 210 kWp array models at about 202,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Book a roof survey in WimborneIllustrative layout for a flat commercial roof of this size, with plant, shade and access kept clear. Your own figures come from the roof survey.
- 2,000
- office properties on the rating list in Dorset (VOA, March 2025)
- 3,170
- retail properties, 80 of them large-format (VOA, March 2025)
- 0
- named commercial rooftop schemes on the planning record nearby (REPD, Q1 2026)
Solar for offices and retail across Dorset
How much sun a Wimborne roof gets
Modelled irradiation here is 1,231 kWh per square metre a year on a low-tilt array, which works out at 964 kWh for every kWp installed (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). That is around 9 percent above the mean across the towns we cover.
The rating list for Dorset
The Valuation Office Agency's rating list puts 2,000 office and 3,170 retail properties in Dorset, covering about 224,000 and 513,000 square metres of floorspace respectively. 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.
The big roofs are in the 80 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 850 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.
Wimborne ranks 7 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.
Grid connection through Scottish and Southern Electricity Networks
Connections around Wimborne 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).
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.
Questions about solar in Wimborne
- Is there enough sun in Wimborne for a commercial roof array?
- Modelled at 964 kWh per kWp a year for a low-tilt array at this latitude, a 210 kWp system comes out at roughly 202,000 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 Dorset?
- 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 Dorset 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 Wimborne 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 Wimborne?
- Capacity varies street by street and only Scottish and Southern Electricity Networks 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.