Solar panels for farms in Guildford
Most holdings around Guildford already own the best generating site they will ever have, and it is the roof of the shed they built for something else. The survey starts on the covering: fibre cement or steel, its remaining life, the purlin spacing and what the frame will carry.
908 kWh per kWp a year at this latitude, so a 500 kWp array models at about 454,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Book a roof survey in GuildfordIllustrative layout for a unit of this size. Your own figures come from the roof survey.
Solar for agricultural buildings across Surrey
What a farm roof near Guildford generates
Modelled irradiation at this latitude is 1166 kWh per square metre a year in the plane of a shallow-pitched roof, which works out at 908 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 Guildford is higher than the record shows.
Surveys run across GU postcodes, GU1 outward.
Guildford 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.
Guildford ranks 4 of 10 towns we cover in Surrey on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 900 to 916, a spread of 16 kWh per kWp. Within Surrey 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 GU1
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 |
|---|---|---|---|---|
| Slyfield Industrial Estate, Slyfield - Solar PV System | Mercedes Benz Of Guildford | 0.15 MW | Roof | Revised |
| Slyfield Industrial Estate, Slyfield - Solar PV System | Mercedes Benz Of Guildford | 0.15 MW | Roof | Awaiting Construction |
Grid connection through UK Power Networks
UK Power 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 Surrey the planning database records 74 solar schemes totalling 182 MW, of which 6 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 Guildford
- How much does a farm roof near Guildford generate?
- The model gives 908 kWh for every kWp installed here, so 500 kWp comes out at about 454,000 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 Guildford take the export?
- UK Power Networks is the distribution network operator for Surrey. 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 Guildford?
- 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 Guildford before design sign-off.
- Has anyone near GU1 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.