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Specialist solar panels for schools in Biggleswade

A kilowatt-peak on a Biggleswade school roof models at 902 kWh a year, above 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.

902 kWh per kWp a year at this latitude, so a 210 kWp array, the size applied for at the nearest school scheme on record, models at about 189,400 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

Book a roof survey in Biggleswade
playing field 4 1 2 3 no array pending structural assessment 0 40 m N
  1. 1 teaching block
  2. 2 hall and kitchen
  3. 3 sports hall
  4. 4 1960s block, no array
  5. first phase
  6. later phase
Drawing Typical school site, Biggleswade scale
Blocks 4, 3 with array
Array about 345 kWp
Yield about 311,000 kWh/yr
Frontage about 90 m / Rev A / SG18

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.

Biggleswade / Bedfordshire
A school on the edge of an eastern commuter town, solar arrays on its roofs and wooded low hills beyond
School buildings of the kind we survey across East of England. Not a named school and not our work.

Solar PV for academy trusts across Bedfordshire

A one kilowatt-peak array on a shallow pitched roof in Biggleswade models at 902 kWh a year, from modelled irradiation of 1,154 kWh per square metre in the plane of the array (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). That is roughly 2 percent above the mean across the towns we cover, so latitude is working slightly in your favour here.

Scaled up, a 210 kWp array, sized to what the nearest school scheme on record applied for, 10 miles away at Bedford, models at about 189,400 kWh a year before shading, and needs roughly 624 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 48,100 kWh landing in July and August and roughly 9,700 kWh across December and January. UK Power Networks 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.

FIG. 1 Biggleswade against the rest of Bedfordshire
  • Biggleswade902
  • Sandy902
  • Bedford900
  • Luton899
  • Flitwick899
  • Dunstable893
  • Leighton Buzzard892

Biggleswade ranks 1 of 7 towns we cover in Bedfordshire on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 892 to 902, a spread of 10 kWh per kWp. Within Bedfordshire that difference is small enough to ignore: where the building sits is not what decides this scheme, your consumption pattern is.

Bars are zero based, so length is proportional to the figure. Where a county is flat, that is the finding: latitude is not the lever, the timetable is. Source: EU PVGIS v5.2, modelled per town

The planning position for Biggleswade schools

The Renewable Energy Planning Database holds no school scheme for the SG18 postcode district. Read that as a gap in the record, not a gap in the roofs: the database is reliable above one megawatt and thin below it, and a school array is typically a fifth of a megawatt.

The closest recorded one is about 10 miles away at Bedford: Bedford School, De Parys Avenue, a 210 kWp roof mounted array applied for by Bedford School, which is with the planning authority. We were not involved in it. We cite it because it is a public record of what has cleared planning in this part of Bedfordshire. Source: Renewable Energy Planning Database, Q1 2026.

Why demand in Biggleswade falls as the roof peaks

The generating year and the school year are out of step in Biggleswade. July and August carry 25.4 percent of the modelled output (EU PVGIS v5.2), and the site is closed for most of those nine weeks. June is the strongest single month here at 13.7 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 5.1 percent of output falls in December and January, the two months when a Biggleswade school is fully occupied and its heating and lighting are at their heaviest. The roof makes 5.6 times as much in June as it does in December, and August alone outproduces December by about 4.8 to one. 73 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 Biggleswade changes that ratio much, but plenty about your own site changes what to do with it.

Then there is the afternoon. From roughly three o'clock the building empties while the roof is still working, so a system sized on annual consumption will over-generate in exactly the hours nobody is there. We size on half hourly data for that reason.

A Biggleswade 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 complete version of the term time arithmetic on the home page, and what it does to a payback figure under costs.

FIG. 2 A Biggleswade roof against the English school year
0 35 70 105 140 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec kWh August: nobody in the building
  • generated while the school is open
  • generated at a weekend or in the holidays
The same figures as a table
Monthly output for a 1 kWp array in Biggleswade, split by whether the day is a school session day. Across the year 49 percent of generation lands while the school is open.
Month Session days Output, kWh per kWp School open School closed
Jan 20 24 15 9
Feb 15 39 21 18
Mar 21 74 50 24
Apr 12 103 41 62
May 17 122 67 55
Jun 21 124 87 37
Jul 11 124 44 80
Aug 0 106 0 106
Sep 20 83 55 28
Oct 17 52 29 23
Nov 21 31 22 9
Dec 15 22 11 11
Year 190 904 442 462
Output per kWp installed, split by whether the day is a session day. July and August are 25.4 percent of the Biggleswade year and the school is shut for most of them. Each month's total is spread evenly across its days, which is the only split available without half hourly readings. Session days follow a typical English school year of 190 days. Your own trust or authority may differ by a few days either way. Source: EU PVGIS v5.2, session days from a typical school calendar

The school estate in Central Bedfordshire

Central Bedfordshire has 128 open state-funded schools and colleges on the DfE register teaching 48,810 pupils between them. Source: DfE Get Information About Schools.

The split is 97 primary, 27 secondary and 4 special, at an average of 381 pupils a site. That is 3.6 primaries for every secondary, which is the ratio that matters for a roof: a primary of a few hundred pupils usually offers a hall roof and one teaching block, while a secondary site carries a sports hall, a dining block and several flat roofs.

If your trust holds several of them, the sequencing question comes before the sizing question. Roof age, covering type and the state of the incoming supply vary block by block across an estate, and that is normally what sets the order of works.

Aerial view of a school site with teaching blocks of several different ages, a sports hall and a playing field, solar arrays on two of the flat roofs
A school site with blocks of several ages, which is the usual starting point for a trust estate survey.

Grid connection through UK Power Networks

Connections around Biggleswade are handled by UK Power Networks, which sets the export limit for the site. Above 3.68 kW per phase the connection runs under G99, so the export limit is agreed in advance rather than assumed. Where the local network is constrained, an export-limited connection usually still makes the scheme work, because a school uses most of what the roof makes during the working day.

Across Bedfordshire the planning database records 89 solar schemes totalling 837 MW, of which 16 are operational (REPD Q1 2026).

Book the survey

Send us the school postcode

Lenzie Consulting Ltd arranges roof surveys for schools across Bedfordshire. 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.

We pass your details to our MCS-certified installation partner so they can quote. Read the privacy notice.

What Biggleswade trusts ask before a survey

Is there enough sun around Biggleswade for this to be worth doing?
The model gives 902 kWh a year for every kWp installed at this latitude, so a 210 kWp array comes out at roughly 189,400 kWh a year before shading. It needs about 624 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 Biggleswade school waste its generation in August?
25.4 percent of the modelled annual output for Biggleswade 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 UK Power Networks. We model all three against your half hourly data before an array is sized.
Will the network around Biggleswade accept the export?
UK Power Networks is the distribution network operator for Bedfordshire. 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 Biggleswade?
Usually permitted development covers a roof array on a school, with prior approval from Central Bedfordshire 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 Biggleswade?
Central Bedfordshire has 128 open state-funded schools and colleges on the DfE register, with 48,810 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.

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