Specialist solar panels for schools in Gainsborough
A kilowatt-peak on a Gainsborough school roof models at 861 kWh a year, below the mean across the towns we cover, and the roofs it applies to are mostly carrying nothing. The survey records sheet type, remaining life, purlin spacing and the state of the incoming supply, and the model runs off your own meter data rather than an average.
25.7% of the modelled year lands in July and August, on a roof that returns 861 kWh per kWp a year. The worked example below runs at 320 kWp, the size applied for at the nearest school scheme on record. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Book a roof survey in Gainsborough- 1 teaching block
- 2 hall and kitchen
- 3 sports hall
- 4 1960s block, no array
- first phase
- later phase
Illustrative layout for an estate of this size. The array is drawn at about 345 kWp, roughly 53 percent of the 650 kWp these three roofs would hold, because a school sizes to the load it can use in term time rather than to the roof it has: generation it cannot use is exported at a much lower rate than it pays to import. The hatched block carries no array because its structure has not been assessed, which on a school of that era is the usual starting point rather than an exception. Your own figures, and which of your blocks can take an array, come from the roof survey.
Solar PV for academy trusts across Lincolnshire
A one kilowatt-peak array on a shallow pitched roof in Gainsborough models at 861 kWh a year, from modelled irradiation of 1,103 kWh per square metre in the plane of the array (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, which is a smaller gap than most schools expect and smaller than the gap between a well matched and a badly matched system.
Scaled up, a 320 kWp array, sized to what the nearest school scheme on record applied for, 25 miles away at Mansfield, models at about 275,500 kWh a year before shading, and needs roughly 950 square metres of clear roof. We take the size from the nearest real application rather than a round number, so the example is anchored to something a planning officer has already seen.
Spread across the year that is about 70,800 kWh landing in July and August and roughly 12,700 kWh across December and January. National Grid Electricity Distribution sets what may go back onto the network here, so the July figure is the one worth putting in front of a governing body first.
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.
The planning position for Gainsborough schools
The DN21 postcode district has no education solar entry in the Renewable Energy Planning Database. Almost no school array is large enough to be captured there reliably, so the absence tells you about the reporting threshold and very little about what is already on the roofs around Gainsborough.
The closest recorded one is about 25 miles away at Mansfield: The Samworth Church Academy, Sherwood Hall Road, a 320 kWp roof mounted array applied for by eEnergy Group PLC, which holds consent and is awaiting construction. We were not involved in it. We cite it because it is a public record of what has cleared planning in this part of Nottinghamshire. Source: Renewable Energy Planning Database, Q1 2026.
Why demand in Gainsborough falls as the roof peaks
The generating year and the school year are out of step in Gainsborough. July and August carry 25.7 percent of the modelled output (EU PVGIS v5.2), and the site is closed for most of those nine weeks. May is the strongest single month here at 14 percent of the annual total, which is still term time, and that works slightly in your favour against towns whose curve peaks in July.
At the other end of the year the mismatch flips. Only 4.6 percent of output falls in December and January, the two months when a Gainsborough school is fully occupied and its heating and lighting are at their heaviest. The roof makes 6.4 times as much in May as it does in December, and August alone outproduces December by about 5.4 to one. 74 percent of the year arrives between April and September, and the point of that figure is not that the summer half goes unused, because April, May and June are full teaching months that draw hard. It is that the concentration peaks in the few weeks at the end of it when the building is shut.
Summed over the year, about 49 percent of what a school roof makes arrives while the school is open. For a business trading every weekday the equivalent is roughly 71 percent. Nothing about Gainsborough changes that ratio much, but plenty about your own site changes what to do with it.
The same mismatch repeats every day. Peak generation lands between eleven and three, the timetable ends shortly after, and by four the site is down to caretaking and cleaning. An annual consumption figure cannot show that, which is why we ask for the half hourly data instead.
A Gainsborough governing body should read that as a sizing constraint, not a reason to stop. The base load that runs through the holidays, servers, comms, refrigeration, ventilation and hot water, is the floor the array should be built up from, and everything above it has to be justified by storage, export or summer occupancy.
We set out the full treatment of the school year against the generation curve on the home page, and what it does to a payback figure under costs.
- generated while the school is open
- generated at a weekend or in the holidays
The same figures as a table
| Month | Session days | Output, kWh per kWp | School open | School closed |
|---|---|---|---|---|
| Jan | 20 | 21 | 14 | 7 |
| Feb | 15 | 37 | 20 | 17 |
| Mar | 21 | 71 | 48 | 23 |
| Apr | 12 | 100 | 40 | 60 |
| May | 17 | 121 | 66 | 55 |
| Jun | 21 | 117 | 82 | 35 |
| Jul | 11 | 119 | 42 | 77 |
| Aug | 0 | 103 | 0 | 103 |
| Sep | 20 | 79 | 53 | 26 |
| Oct | 17 | 48 | 26 | 22 |
| Nov | 21 | 28 | 20 | 8 |
| Dec | 15 | 19 | 9 | 10 |
| Year | 190 | 863 | 420 | 443 |
The school estate in West Lindsey
West Lindsey has 55 open state-funded schools and colleges on the DfE register teaching 13,622 pupils between them. Source: DfE Get Information About Schools.
The split is 46 primary, 7 secondary and 2 special, at an average of 248 pupils a site. At 6.6 primaries to every secondary, most of the buildings here are small. That is not a reason to skip them, but it does mean the usable area on a primary is a hall roof and a teaching block rather than an estate.
For a trust with more than one site in West Lindsey, the first survey is worth running across the whole estate. It tells you which roofs are near the end of their covering life, which have the switchboard headroom, and therefore which one should carry the first array.
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 school postcode
Lenzie Consulting Ltd arranges roof surveys for schools across Lincolnshire. Send the school postcode and a rough idea of the roof area, and the last twelve months of half hourly meter data if the school holds it. We come back with what the roofs can carry, what they would generate against your own consumption, and the funding routes open to a school.
Lenzie Consulting Ltd arranges the survey and passes your details to an MCS-certified installation partner so they can quote. We do not carry out the installation ourselves.
What Gainsborough trusts ask before a survey
- Is there enough sun around Gainsborough for this to be worth doing?
- The model gives 861 kWh a year for every kWp installed at this latitude, so a 320 kWp array comes out at roughly 275,500 kWh a year before shading. It needs about 950 square metres of clear roof once walkways and rooflight setbacks are allowed for. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
- Does a Gainsborough school waste its generation in August?
- 25.7 percent of the modelled annual output for Gainsborough falls in July and August, when the buildings are closed for most of six weeks (EU PVGIS v5.2). It does not go to waste, but it only has three places to go: the base load that runs regardless, such as servers, catering refrigeration and ventilation; storage; or export under an agreement with National Grid Electricity Distribution. We model all three against your half hourly data before an array is sized.
- Will the network around Gainsborough accept the export?
- National Grid Electricity Distribution is the distribution network operator for Lincolnshire. Anything above 3.68 kW per phase connects under G99, and the application fixes the export limit. On a school site the incoming supply is often the binding constraint rather than the roof, so we ask that question before anyone sizes an array.
- Is planning permission needed for panels on a school in Gainsborough?
- Usually permitted development covers a roof array on a school, with prior approval from West Lindsey needed above a capacity threshold. A ground mounted array in the grounds is a different question and much more likely to need a full application. We check both before design sign-off.
- How many schools are there around Gainsborough?
- West Lindsey has 55 open state-funded schools and colleges on the DfE register, with 13,622 pupils on roll. Source: DfE Get Information About Schools. We survey across the whole of that area, and where a trust holds several sites we look at them in one pass.