Solar panels for warehouses in Dorchester
Sheds around Dorchester tend to have more roof than the business has any other use for. What decides a scheme here is the state of the covering and the load path, which is why the survey starts on the roof rather than in a spreadsheet.
985 kWh per kWp a year at this latitude, so a 500 kWp array models at about 493,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Book a roof survey in DorchesterIllustrative layout for a unit of this size. Your own figures come from the roof survey.
Distribution centre solar across Dorset
What a roof in Dorchester actually generates
Modelled irradiation at this latitude is 1258 kWh per square metre a year in the plane of a shallow-pitched roof, which works out at 985 kWh for every kWp installed (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). That is around 11 percent above the mean across the towns we cover, which is as good as UK rooftop gets outside the south coast.
We survey across the DT postcode area, starting from DT1.
Dorset is the planning authority for most sites here, and the built-up area holds a population of about 21,360, so the stock here runs to trade counters, light industrial terraces and the occasional larger shed (ONS Census 2021 built-up areas).
Dorchester ranks 2 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 500 kWp array that is about 41,000 kWh a year between the strongest and weakest town in the county.
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 Dorset the planning database records 149 solar schemes totalling 1078 MW, of which 47 are operational (REPD Q1 2026).
Solar already consented near DT1
From the government's Renewable Energy Planning Database, Q1 2026. These are the schemes on record in this postcode district, which is a fair guide to how the local network has been treating export applications.
| Scheme | Operator | Capacity | Mounting | Status |
|---|---|---|---|---|
| Dorchesters Corn Exchange - Solar Panels & Biomass Boiler | Dorchester Town Council | n/a | Roof | Under Construction |
| High East - Solar Panels | 21st Century Homes | 0.26 MW | Roof | Awaiting Construction |
| Prince Of Wales Road - Solar Photovoltaic Equipment | Solar South West Limited | 0.2 MW | Roof | Awaiting Construction |
| Damers First School - Solar Panels | Solar Options for Schools Limited | 0.19 MW | Roof | Awaiting Construction |
| Thomas Hardye School - Solar Panels | Solar Options for Schools Limited | 0.59 MW | Roof | Awaiting Construction |
Send us the postcode
Tell us where the unit is and roughly how big the roof is. 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 Dorchester
- Is there enough sun in Dorchester to make this work?
- Modelled at 985 kWh per kWp a year for a shallow-pitched roof at this latitude, which puts a 500 kWp array at roughly 493,000 kWh a year before shading. That array needs about 1,485 sqm of clear roof once walkways and setbacks are allowed for. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
- Who do we apply to for export in Dorchester?
- Capacity varies street by street, and only Scottish and Southern Electricity Networks can answer it for your connection. We ask the question early, because an export-limited offer changes the design rather than killing the scheme.
- Do we need planning permission in Dorset?
- In most cases no, because roof-mounted panels on commercial buildings sit within permitted development. The exceptions are listed buildings, conservation areas and arrays that stand proud of the roof plane. We check with Dorset first either way.
- Has anyone near DT1 already done this?
- The planning database records 5 solar schemes in this postcode district, 5 of them roof mounted. That matters less as proof that it works and more as evidence of how the local network has been treating export applications. Source: Renewable Energy Planning Database, Q1 2026.