Solar panels for farms in Winchester
A Winchester farm buys electricity at the worst rate of the day in exactly the hours its roof could be generating. What decides a farm scheme here is the state of the roof sheets and the incoming supply, which is why the survey looks at both before anyone sizes an array.
917 kWh per kWp a year at this latitude, so a 500 kWp array models at about 459,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Book a roof survey in WinchesterIllustrative layout for a unit of this size. Your own figures come from the roof survey.
Agricultural rooftop solar across Hampshire
What a farm roof near Winchester generates
Modelled irradiation at this latitude is 1180 kWh per square metre a year in the plane of a shallow-pitched roof, which works out at 917 kWh for every kWp installed (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). That is around 3 percent above the mean across the areas we cover, which is as strong as UK farm rooftop gets outside the south coast.
1 roof mounted scheme is on record nearby. Roof arrays under a megawatt frequently never reach that database at all, so the real number of farm roofs generating around Winchester is higher than the record shows.
Most of the buildings we look at here sit in the SO postcode area.
Winchester 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.
Winchester ranks 5 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 500 kWp array that is about 42,000 kWh a year between the strongest and weakest town in the county.
Solar already consented near SO23
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 |
|---|---|---|---|---|
| Micheldever Tyres Winchester, Winnall Warehouse - Solar PV Panels | Micheldever Tyres Winchester | 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 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 Winchester
- What would a 500 kWp array produce on a farm near Winchester?
- Yes, and the figure matters more than the sunshine. At 917 kWh per kWp a year, a 500 kWp array on a Winchester holding models at around 459,000 kWh. What changes the answer is how much of that the farm uses itself. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
- Which network operator handles the connection around Winchester?
- Applications go to Scottish and Southern Electricity Networks, who run the network across Hampshire. On a farm the incoming supply matters as much as their answer: a single phase supply caps what can be installed whatever the roof would take.
- What does Winchester require for solar on an agricultural building?
- Roof-mounted panels on an agricultural building often fall under permitted development, subject to limits on projection above the roof plane and to the building not being listed or in a conservation area or National Park. We confirm the position with Winchester before the design is finalised.