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Specialist solar panels for schools in Buckingham

Buckinghamshire has 233 state-funded schools and colleges, and most of them are buying electricity in exactly the hours their own roofs could be making it. We start with the roof build up and the age of the covering, because across a school estate that is usually what decides which block goes first.

893 kWh per kWp a year at this latitude, so a 540 kWp array, the size applied for at the nearest school scheme on record, models at about 482,200 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

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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, Buckingham scale
Blocks 4, 3 with array
Array about 345 kWp
Yield about 308,000 kWh/yr
Frontage about 90 m / Rev A / MK18

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.

Buckingham / Buckinghamshire
A school on the edge of a Home Counties town, solar arrays on its roofs and wooded low hills beyond
School buildings of the kind we survey across South East. Not a named school and not our work.

Solar for education buildings across Buckinghamshire

A one kilowatt-peak array on a shallow pitched roof in Buckingham models at 893 kWh a year, from modelled irradiation of 1,145 kWh per square metre in the plane of the array (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). That is within a few percent of our mean. Latitude is not the variable here. When the building is occupied is.

Scaled up, a 540 kWp array, sized to what the nearest school scheme on record applied for, 15 miles away at Aylesbury, models at about 482,200 kWh a year before shading, and needs roughly 1,604 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 123,400 kWh landing in July and August and roughly 24,600 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.

FIG. 1 Buckingham against the rest of Buckinghamshire
  • Marlow904
  • Buckingham893
  • High Wycombe892
  • Beaconsfield892
  • Chesham891
  • Amersham890
  • Princes Risborough883
  • Aylesbury881

Buckingham ranks 2 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.

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

School solar on record near MK18

Search the Renewable Energy Planning Database for the MK18 postcode district and nothing comes back under education. That is worth stating plainly and then setting aside: the register is built around generating stations, a school array is a fraction of the size it captures reliably, and plenty of school roofs never appear in any national record at all.

Look 15 miles out and there is one: Aylesbury College Decarbonisation in Aylesbury, 540 kWp, applied for by Aylesbury College, which holds consent and is awaiting construction. None of our doing. It is a public planning record, and the nearest evidence available of how an application like yours is treated around here. Source: Renewable Energy Planning Database, Q1 2026.

Term dates against the Buckingham generation curve

A Buckingham 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 5.1 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 5.9 times as much in June as it does in December, and August alone outproduces December by about 5 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.

Put the two calendars together and roughly 49 percent of a school's generation nationally lands on a session day, against about 71 percent for a business open every weekday. That gap is the whole difference between appraising a school roof and appraising any other commercial one, and it barely moves from town to town.

Daily shape compounds it. A school's load climbs from breakfast club, holds through the teaching day and falls away from about three in the afternoon, while generation is still strong until six in high summer. That is why we size against half hourly meter data rather than against annual consumption: the annual figure hides both problems.

None of that makes a Buckingham scheme a bad one. It changes what the scheme should be: sized against the base load that runs whether or not the school is open, which on most sites is servers, comms, catering refrigeration, ventilation and hot water, with lettings, holiday clubs and summer works added on top. Where that base load is thin, the choices are storage, an export arrangement through Scottish and Southern Electricity Networks, or a smaller array that consumes nearly everything it makes.

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 Buckingham 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 Buckingham, 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 25 16 9
Feb 15 38 20 18
Mar 21 73 49 24
Apr 12 103 41 62
May 17 119 65 54
Jun 21 124 87 37
Jul 11 124 44 80
Aug 0 105 0 105
Sep 20 82 55 27
Oct 17 50 27 23
Nov 21 30 21 9
Dec 15 21 10 11
Year 190 894 435 459
Output per kWp installed, split by whether the day is a session day. July and August are 25.6 percent of the Buckingham 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

Grid connection through Scottish and Southern Electricity Networks

Connections around Buckingham 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).

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.

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.
Book the survey

Book a roof survey at your Buckingham school

We survey school and college roofs throughout Buckinghamshire. We need the postcode, a rough roof area and your half hourly meter data if the trust has it. From that we model what the roof carries, what it generates against the timetable, and which of the funding routes actually suits a school of your size.

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.

Buckingham school solar, answered

How much would a school roof near Buckingham generate?
Modelled at 893 kWh per kWp a year, a 540 kWp array on a Buckingham school models at about 482,200 kWh. What decides whether that is worth doing is how much of it the school uses itself, not the total. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
How does the school year affect a solar scheme in Buckingham?
It goes somewhere, just not into the timetable. 25.6 percent of the Buckingham generating year lands in July and August (EU PVGIS v5.2), and a closed school still runs servers, comms, refrigeration and ventilation. What that base load does not absorb is either stored, exported under an agreement with Scottish and Southern Electricity Networks, or a sign the array is too big. We test which before sizing anything.
Which network operator handles the connection at a Buckingham school?
Applications go to Scottish and Southern Electricity Networks, who run the network across Buckinghamshire. An export-limited offer usually still works for a school, because the summer surplus is the part you were least likely to be paid much for anyway.
What does Buckinghamshire require for solar on a school building?
Roof-mounted solar on a non-domestic building often falls within permitted development under Part 14 of the General Permitted Development Order, subject to limits on how far the panels stand proud of the roof plane and, above a threshold, to prior approval from Buckinghamshire on siting and design. Listed buildings and conservation areas are the usual exceptions. We put the position to Buckinghamshire before a design is finalised.
How many schools are there around Buckingham?
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.

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