Commercial building solar panels in Borehamwood
An office or store in Borehamwood 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.
895 kWh per kWp a year at this latitude, so a 210 kWp array models at about 188,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Book a roof survey in BorehamwoodIllustrative layout for a flat commercial roof of this size, with plant, shade and access kept clear. Your own figures come from the roof survey.
- 39,765
- people in the Borehamwood built-up area (ONS Census 2021)
- 970
- office properties on the rating list in Hertsmere (VOA, March 2025)
- 680
- retail properties, 20 of them large-format (VOA, March 2025)
- 1
- named commercial rooftop scheme on the planning record nearby (REPD, Q1 2026)
Solar for offices and retail across Hertfordshire
How much sun a Borehamwood roof gets
Modelled irradiation here is 1,150 kWh per square metre a year on a low-tilt array, which works out at 895 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.
The rating list for Hertsmere
The Valuation Office Agency's rating list puts 970 office and 680 retail properties in Hertsmere, covering about 152,000 and 80,000 square metres of floorspace respectively. 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.
The big roofs are in the 20 large-format retail units, superstores and retail warehouses in the district, about 22,000 square metres of floorspace under largely single storey roofs.
The same list carries 190 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 Borehamwood
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 |
|---|---|---|---|---|
| Elstree Film And TV Studios, Shenley Road | Hertsmere Borough Council | civic | n/a | Application Withdrawn |
The built-up area holds about 39,765 people, so the stock here runs to high street premises, a supermarket or two and the odd hotel (ONS Census 2021 built-up areas).
We arrange surveys across the WD postcode area, starting from WD6.
Borehamwood ranks 10 of 10 towns we cover in Hertfordshire on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 895 to 911, a spread of 16 kWh per kWp. Within Hertfordshire that difference is small enough to ignore: where the building sits is not what decides this scheme, your consumption pattern is.
Grid connection through UK Power Networks
Connections around Borehamwood are handled by UK Power 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 Hertfordshire the planning database records 119 solar schemes totalling 844 MW, of which 12 are operational (REPD Q1 2026).
All solar on record near WD6
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 |
|---|---|---|---|---|
| Unit 2, York Crescent - Solar Panels | Panattoni UK Developments Limited | 0.22 MW | Roof | Awaiting Construction |
| Elstree Film And TV Studios, Shenley Road - Solar Panels And ASHPs | Hertsmere Borough Council | n/a | Roof | Application Withdrawn |
| Elstree Film And TV Studios, Shenley Road - Solar Panels | Sky Studios | 3 MW | Roof | Operational |
| Centennial Park, Centennial Avenue - Solar Panels | Spire Healthcare Group PLC | 0.17 MW | Roof | Awaiting Construction |
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 Borehamwood
- Is there enough sun in Borehamwood for a commercial roof array?
- Modelled at 895 kWh per kWp a year for a low-tilt array at this latitude, a 210 kWp system comes out at roughly 188,000 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 Hertsmere?
- 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 Hertsmere 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 Borehamwood 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 Borehamwood?
- Capacity varies street by street and only UK Power 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.