Solar panels for farms in Dereham
The case for solar on a Dereham holding turns on how much of the output the farm uses itself, not on how much the roof makes. The survey starts on the covering: fibre cement or steel, its remaining life, the purlin spacing and what the frame will carry.
898 kWh per kWp a year at this latitude, so a 500 kWp array models at about 449,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Book a roof survey in DerehamIllustrative layout for a unit of this size. Your own figures come from the roof survey.
Solar for agricultural buildings across Norfolk
What a farm roof near Dereham generates
Modelled irradiation at this latitude is 1151 kWh per square metre a year in the plane of a shallow-pitched roof, which works out at 898 kWh for every kWp installed (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). That sits within a few percent of the mean across the areas we cover, so what decides the scheme is your own demand pattern rather than the latitude.
2 roof mounted schemes are on record nearby. Roof arrays under a megawatt frequently never reach that database at all, so the real number of farm roofs generating around Dereham is higher than the record shows.
Surveys run across NR postcodes, NR19 outward.
Breckland is the planning authority for most holdings here, and it is the authority that decides whether an array on an agricultural building falls inside permitted development.
Dereham ranks 6 of 8 towns we cover in Norfolk on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 897 to 923, a spread of 26 kWh per kWp. Within Norfolk that difference is small enough to ignore: where the building sits is not what decides this scheme, your consumption pattern is.
Solar already consented near NR19
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 |
|---|---|---|---|---|
| Station Road - Solar Panels | WM Morrisons Supermarkets Plc | 0.32 MW | Roof | Awaiting Construction |
| Dereham Leisure Centre, Station Road - Solar Panels | Parkwood Leisure Ltd | 0.17 MW | Roof | Awaiting Construction |
Grid connection through UK Power Networks
Connections around Dereham 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 farm uses most of what the roof makes during the working day.
Across Norfolk the planning database records 179 solar schemes totalling 1490 MW, of which 43 are operational (REPD Q1 2026).
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 Dereham
- How much does a farm roof near Dereham generate?
- The model gives 898 kWh for every kWp installed here, so 500 kWp comes out at about 449,000 kWh a year before shading losses. A building of roughly 1,485 sqm of clear roof carries it. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
- Will the rural network around Dereham take the export?
- UK Power Networks is the distribution network operator for Norfolk. Anything above 3.68 kW per phase connects under G99, and the application sets the export limit. Rural supplies are often the binding constraint, so we ask the question before an array is sized.
- Is planning permission needed for panels on a farm building near Dereham?
- Usually permitted development covers a roof array. Ground mounted arrays are a different question and are far more likely to need a full application. We put both to Breckland before design sign-off.
- Has anyone near NR19 already done this?
- The planning database records 0 ground mounted and 2 roof mounted solar schemes in this postcode district. That matters less as proof it works and more as evidence of how the local network has treated export applications. Roof arrays under a megawatt often never appear in the database, so the real figure is higher. Source: Renewable Energy Planning Database, Q1 2026.