Solar panels for warehouses in Gainsborough
The economics of a Gainsborough rooftop array turn on how much of the generation the occupier uses on site. The survey measures the roof, not the postcode: cladding profile, purlin centres, remaining sheet life and the load the frame can take.
861 kWh per kWp a year at this latitude, so a 500 kWp array models at about 431,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Book a roof survey in GainsboroughIllustrative layout for a unit of this size. Your own figures come from the roof survey.
Warehouse rooftop solar across Lincolnshire
What a roof in Gainsborough actually generates
Modelled irradiation at this latitude is 1103 kWh per square metre a year in the plane of a shallow-pitched roof, which works out at 861 kWh for every kWp installed (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). That is about 3 percent below the mean across the towns we cover, so the case here leans harder on how much you use on site rather than on raw generation.
Distribution stock around Gainsborough clusters on A156 and A631, which is where the large single-let roofs are.
Most of the units we look at here sit in the DN postcode area.
West Lindsey is the planning authority for most sites here, and the built-up area holds a population of about 21,910, so the stock here runs to trade counters, light industrial terraces and the occasional larger shed (ONS Census 2021 built-up areas).
Gainsborough ranks 8 of 8 towns we cover in Lincolnshire on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 861 to 906, a spread of 45 kWh per kWp. On a 500 kWp array that is about 22,500 kWh a year between the strongest and weakest town in the county.
Solar already consented near DN21
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 |
|---|---|---|---|---|
| Manton Manor Solar Farm | Pegasus Group | 27 MW | Ground | Appeal Refused |
| Gate Burton - Solar & Energy Storage Park | Low Carbon | 531 MW | Ground | Awaiting Construction |
| Cottam Solar Project | Island Green Power | 600 MW | Ground | Awaiting Construction |
| West Burton Solar Project | Island Green Power | 480 MW | Ground | Awaiting Construction |
| Tillbridge Solar Farm, Hemswell - Solar Panels | Tillbridge Solar Limited | 500 MW | Ground | Awaiting Construction |
| Ping Europe Limited, Corringham Road - Solar Array | Cactus Energy | 0.3 MW | Roof | Awaiting Construction |
Grid connection through National Grid Electricity Distribution
National Grid Electricity Distribution operates the distribution network across Lincolnshire, so the export application goes to them. Anything larger than 3.68 kW per phase falls under G99, which means an application before commissioning rather than a notification afterwards. A constrained network is not the end of a scheme. Capping export costs little when the building already absorbs most of what the roof produces.
Across Lincolnshire the planning database records 226 solar schemes totalling 7052 MW, of which 37 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 Gainsborough
- Is there enough sun in Gainsborough to make this work?
- Modelled at 861 kWh per kWp a year for a shallow-pitched roof at this latitude, which puts a 500 kWp array at roughly 431,000 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 Gainsborough?
- Capacity varies street by street, and only National Grid Electricity Distribution 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 West Lindsey?
- 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 West Lindsey first either way.
- Has anyone near DN21 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.