Solar panels for warehouses in Daventry
A Daventry warehouse roof sits idle through exactly the hours its occupier buys the most expensive electricity. 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.
890 kWh per kWp a year at this latitude, so a 500 kWp array models at about 445,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Book a roof survey in DaventryIllustrative layout for a unit of this size. Your own figures come from the roof survey.
Logistics solar PV across Northamptonshire
What a roof in Daventry actually generates
Modelled irradiation at this latitude is 1137 kWh per square metre a year in the plane of a shallow-pitched roof, which works out at 890 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 towns we cover, so the case rests on your consumption pattern rather than on the weather.
Distribution stock around Daventry clusters on M1 J16, M1 J18 and A5, which is where the large single-let roofs are.
Named estates in the area include DIRFT.
Surveys run across NN postcodes, NN11 outward.
West Northamptonshire is the planning authority for most sites here, and the built-up area holds a population of about 27,790, so the stock here runs to trade counters, light industrial terraces and the occasional larger shed (ONS Census 2021 built-up areas).
Daventry ranks 7 of 7 towns we cover in Northamptonshire on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 890 to 900, a spread of 10 kWh per kWp. Within Northamptonshire that difference is small enough to ignore: where the building sits is not what decides this scheme, your consumption pattern is.
Grid connection through National Grid Electricity Distribution
National Grid Electricity Distribution 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 Northamptonshire the planning database records 133 solar schemes totalling 1932 MW, of which 25 are operational (REPD Q1 2026).
Solar already consented near NN11
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 |
|---|---|---|---|---|
| Ford Motor Company Limited - Solar Farm | Onsite Energy Projects Limited | 1 MW | Ground | Awaiting Construction |
| Royal Oak Way South - Solar Array | Cummins Limited | 1.66 MW | Ground | Operational |
| Fawsley Estate, Fawsley - Solar Arrays | Elgin Energy EsCo | 12 MW | Ground | Awaiting Construction |
| Danetre and Southbrook Learning Village, Hawke Road - Solar PV Panels | E-Act | 0.18 MW | Ground | Awaiting Construction |
| School House, Ashby Road - Solar PV Panels | E-ACT | 0.21 MW | Roof | Awaiting Construction |
| Priors Marston Road, Hellidon - Solar Panels | Interesting Hotels Limited | 0.32 MW | Ground | 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 Daventry
- How much does a warehouse roof in Daventry generate?
- The model gives 890 kWh for every kWp installed here, so 500 kWp comes out at about 445,000 kWh a year before any shading losses. You need roughly 1,485 sqm of clear roof to fit it. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
- Does the grid around Daventry have capacity?
- National Grid Electricity Distribution is the distribution network operator for Northamptonshire. Anything above 3.68 kW per phase connects under G99, and the application sets the export limit. We submit it as part of the design.
- Is planning permission needed for panels on a Daventry unit?
- Usually permitted development covers it. We still put the question to West Northamptonshire before design sign-off, and we tell you early if a full application is needed rather than discovering it late.
- Has anyone near NN11 already done this?
- The planning database records 6 solar schemes in this postcode district, 1 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.