Specialist solar panels for schools in Aylesbury
A 540 kWp array at Aylesbury College Decarbonisation is the nearest school scheme on the planning record, and it holds consent and is awaiting construction. We arrange the roof survey, model the output against the school's own half hourly consumption, and set out the funding routes.
881 kWh per kWp a year at this latitude, so a 540 kWp array, the median size schools around Aylesbury have applied for, models at about 475,700 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Book a roof survey in Aylesbury- 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.
Which schools around HP21 have applied
The Renewable Energy Planning Database records 1 school and college solar scheme in the HP21 postcode district. A college, Aylesbury College Decarbonisation, applied for 540 kWp roof mounted and the scheme holds consent and is awaiting construction. The applicant on record is Aylesbury College.
None of these are ours. They are entries in the public planning record, reproduced here because a consented array at a school down the road is a better guide to your own prospects than any national average. Source: Renewable Energy Planning Database, Q1 2026.
One thing to be clear about: the drawing at the head of this page is an illustrative estate, not Aylesbury College Decarbonisation and not a survey of anyone's roof. What we know about the scheme above is only what the public planning record says.
The median array applied for here is 540 kWp. At 540 kWp you are covering roughly 1,604 square metres of roof once walkways, edge zones and rooflight setbacks come out, which on most sites means a sports hall plus one teaching block rather than the whole estate.
Every one of them is a college, which is worth knowing: a college runs longer days and more plant than a school, and it usually has the flat roof area to match.
| Site on record | Applicant on record | Size | Mounting | Status |
|---|---|---|---|---|
| Aylesbury College Decarbonisation | Aylesbury College | 540 kWp | Roof | Awaiting Construction |
Solar for education buildings across Buckinghamshire
A one kilowatt-peak array on a shallow pitched roof in Aylesbury models at 881 kWh a year, from modelled irradiation of 1,129 kWh per square metre in the plane of the array (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). Against a mean of 886 kWh per kWp across the towns we cover, Aylesbury is unremarkable, which is the useful finding: the scheme will be decided by the load curve, not the map.
Scaled up, a 540 kWp array, sized to the median array applied for at schools around Aylesbury itself, models at about 475,700 kWh a year before shading, and needs roughly 1,604 square metres of clear roof. That size is not one we chose. It is what schools in this district have actually applied for.
Spread across the year that is about 121,800 kWh landing in July and August and roughly 23,800 kWh across December and January. Scottish and Southern Electricity 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.
Aylesbury ranks 8 of 8 towns we cover in Buckinghamshire on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 881 to 904, a spread of 23 kWh per kWp. Within Buckinghamshire that difference is small enough to ignore: where the building sits is not what decides this scheme, your consumption pattern is.
Term dates against the Aylesbury generation curve
A Aylesbury school roof generates most in the weeks its buildings are closed. 25.6 percent of the modelled year lands in July and August alone (EU PVGIS v5.2), and the summer holiday takes roughly six of those nine weeks out of the timetable. June is the strongest single month here at 13.9 percent of the annual total, which is still term time, and that works slightly in your favour against towns whose curve peaks in July.
Winter reverses it. December and January between them return 5 percent of the modelled year, and that is when the heating, the lighting and a full register are all drawing at the same time. The roof makes 6.2 times as much in June as it does in December, and August alone outproduces December by about 5.2 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.
Nationally this comes out at about 49 percent of annual generation falling on a session day. A business open every weekday sees roughly 71 percent. The 22 point gap is what a school appraisal has to absorb, and it is much the same in Aylesbury as anywhere else.
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.
The conclusion is not that a Aylesbury school should do nothing. It is that the array should be sized to the load that survives the holidays, which is usually the server room, the catering refrigeration, the ventilation and the hot water, plus whatever the site lets out over the summer. Anything above that line needs storage or an export agreement with Scottish and Southern Electricity Networks to earn its keep.
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.
- 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 | 24 | 15 | 9 |
| Feb | 15 | 37 | 20 | 17 |
| Mar | 21 | 72 | 49 | 23 |
| Apr | 12 | 103 | 41 | 62 |
| May | 17 | 118 | 65 | 53 |
| Jun | 21 | 123 | 86 | 37 |
| Jul | 11 | 123 | 44 | 79 |
| Aug | 0 | 103 | 0 | 103 |
| Sep | 20 | 81 | 54 | 27 |
| Oct | 17 | 50 | 27 | 23 |
| Nov | 21 | 29 | 20 | 9 |
| Dec | 15 | 20 | 10 | 10 |
| Year | 190 | 883 | 431 | 452 |
Buckinghamshire schools, phase by phase
Buckinghamshire has 233 open state-funded schools and colleges on the DfE register teaching 89,335 pupils between them. Source: DfE Get Information About Schools.
The split is 184 primary, 37 secondary, 11 special and 1 further education, at an average of 383 pupils a site. 5 primaries per secondary is a mix weighted towards small sites. The roof area, and therefore most of the generation, sits with the 37 secondaries and the 1 further education site.
Across an estate of that size the roofs will not be in the same condition, and that is the point of surveying them together: the block with the best orientation is often not the block whose covering has twenty years left in it.
Grid connection through Scottish and Southern Electricity Networks
Connections around Aylesbury are handled by Scottish and Southern Electricity 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 Buckinghamshire the planning database records 127 solar schemes totalling 955 MW, of which 21 are operational (REPD Q1 2026).
Book a roof survey at your Aylesbury school
Roof condition decides the order of works on most school estates, so that is where we start. Send us the postcode and a rough roof area, with twelve months of half hourly readings if you have them, and we come back with usable area, modelled output against your own load, and the funding routes.
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.
Aylesbury school solar, answered
- Is there enough sun around Aylesbury for this to be worth doing?
- The model gives 881 kWh a year for every kWp installed at this latitude, so a 540 kWp array comes out at roughly 475,700 kWh a year before shading. It needs about 1,604 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 Aylesbury school waste its generation in August?
- 25.6 percent of the modelled annual output for Aylesbury 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 Scottish and Southern Electricity Networks. We model all three against your half hourly data before an array is sized.
- Will the network around Aylesbury accept the export?
- Scottish and Southern Electricity Networks is the distribution network operator for Buckinghamshire. 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 Aylesbury?
- Usually permitted development covers a roof array on a school, with prior approval from Buckinghamshire 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.
- Has a school near HP21 already done this?
- One school scheme is on record in this postcode district, including a 540 kWp array at Aylesbury College Decarbonisation that holds consent and is awaiting construction. We were not involved in it. It is a public planning record, and it matters less as proof that solar works than as evidence of what this authority and this network operator have already accepted. Source: Renewable Energy Planning Database, Q1 2026.
- How many schools are there around Aylesbury?
- Buckinghamshire has 233 open state-funded schools and colleges on the DfE register, with 89,335 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.