Commercial building solar panels in Basingstoke
Whether solar pays on a Basingstoke 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.
906 kWh per kWp a year at this latitude, so a 210 kWp array models at about 190,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Book a roof survey in BasingstokeIllustrative layout for a flat commercial roof of this size, with plant, shade and access kept clear. Your own figures come from the roof survey.
- 117,210
- people in the Basingstoke built-up area (ONS Census 2021)
- 1,300
- office properties on the rating list in Basingstoke and Deane (VOA, March 2025)
- 740
- retail properties, 60 of them large-format (VOA, March 2025)
- 1
- named commercial rooftop scheme on the planning record nearby (REPD, Q1 2026)
Solar PV for commercial property across Hampshire
What a flat roof in Basingstoke generates
Modelled irradiation here is 1,163 kWh per square metre a year on a low-tilt array, which works out at 906 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 Basingstoke and Deane
Basingstoke and Deane has 1,300 office premises and 740 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 in the bottom quarter of the 318 districts in England and Wales.
60 of those retail properties are superstores, large food stores, large shops or retail warehouses, together about 154,000 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 230 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 Basingstoke
The Renewable Energy Planning Database records one roof-mounted scheme on supermarket and retail buildings in this postcode district. These are other organisations' projects, listed from the public record, not ours.
| Scheme | Applicant | Type | Capacity | Status |
|---|---|---|---|---|
| Worting Road | WM Morrisons Supermarkets Plc | retail | 0.47 MW | Awaiting Construction |
The built-up area holds about 117,210 people, large enough for a retail park or two and a cluster of office buildings (ONS Census 2021 built-up areas).
Surveys run across RG postcodes, RG21 outward.
Basingstoke ranks 7 of 10 towns we cover in Hampshire on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 903 to 987, a spread of 84 kWh per kWp. On a 210 kWp commercial roof that is about 17,640 kWh a year between the strongest and weakest town in the county.
All solar on record near RG21
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 |
|---|---|---|---|---|
| Worting Road - Solar Array | WM Morrisons Supermarkets Plc | 0.47 MW | Roof | Awaiting Construction |
| Gemini Centre, Hamilton Close - Solar Panels | Custom Solar Limited | 0.34 MW | Roof | Awaiting Construction |
| Inchcape Estates, Edison Road - Solar Panels | Inchcape Estates Ltd | 0.15 MW | Roof | Awaiting Construction |
| The Costello School - Solar PV Array | Nero Energy | n/a | Roof | Awaiting Construction |
Grid connection through Scottish and Southern Electricity Networks
Scottish and Southern Electricity 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 Hampshire the planning database records 237 solar schemes totalling 1634 MW, of which 51 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 Basingstoke
- What would a 210 kWp array produce in Basingstoke?
- Yes. At 906 kWh per kWp a year, a 210 kWp array on a Basingstoke roof models at around 190,000 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 Basingstoke 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 Basingstoke and Deane 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 Basingstoke?
- 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 Basingstoke have capacity for export?
- Scottish and Southern Electricity Networks is the distribution network operator for Hampshire. 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.