Specialist solar panels for schools in Andover
Test Valley has 56 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.
915 kWh per kWp a year at this latitude, so a 160 kWp array, the size applied for at the nearest school scheme on record, models at about 146,400 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Book a roof survey in Andover- 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 for education buildings across Hampshire
A one kilowatt-peak array on a shallow pitched roof in Andover models at 915 kWh a year, from modelled irradiation of 1,172 kWh per square metre in the plane of the array (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). Andover models 3 percent above our mean. That is a real advantage, though a smaller one than the difference between an array matched to the timetable and one matched to the roof.
Scaled up, a 160 kWp array, sized to what the nearest school scheme on record applied for, 15 miles away at Newbury, models at about 146,400 kWh a year before shading, and needs roughly 475 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 36,900 kWh landing in July and August and roughly 7,600 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.
Andover ranks 6 of 10 towns we cover in Hampshire on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 903 to 987, a spread of 84 kWh per kWp. On a 500 kWp array that is about 42,000 kWh a year between the strongest and weakest town in the county.
School solar on record near SP10
There is no school entry for the SP10 postcode district in the Renewable Energy Planning Database. The register is dependable for anything from a megawatt upward and incomplete below it, and a school array is usually nearer a fifth of a megawatt, so this says more about the threshold than about Andover.
Look 15 miles out and there is one: Mary Hare School, Wantage Road in Newbury, 160 kWp, applied for by Mary Hare School, 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 Andover generation curve
A Andover school roof generates most in the weeks its buildings are closed. 25.2 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 13.8 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 5.2 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 5.7 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.
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 Andover 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.
- 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 | 26 | 17 | 9 |
| Feb | 15 | 40 | 21 | 19 |
| Mar | 21 | 76 | 51 | 25 |
| Apr | 12 | 106 | 42 | 64 |
| May | 17 | 123 | 67 | 56 |
| Jun | 21 | 126 | 88 | 38 |
| Jul | 11 | 125 | 44 | 81 |
| 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 | 916 | 447 | 469 |
Grid connection through Scottish and Southern Electricity Networks
Connections around Andover 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 Hampshire the planning database records 237 solar schemes totalling 1634 MW, of which 51 are operational (REPD Q1 2026).
Test Valley schools, phase by phase
Test Valley has 56 open state-funded schools and colleges on the DfE register teaching 15,841 pupils between them. Source: DfE Get Information About Schools.
The split is 46 primary, 6 secondary and 4 special, at an average of 283 pupils a site. A ratio of 7.7 to one tells you where the roof area is. It is not with the 46 primaries, which mostly offer a hall and a teaching block each, but with the larger sites that were built with a sports hall and a dining block attached.
Where a multi-academy trust holds several of those sites, surveying the estate in one pass beats taking a roof at a time. The design work, the connection applications and the procurement paperwork are the same job repeated, and a trust that runs them together gets a better answer on all three.
Book a roof survey at your Andover school
We survey school and college roofs throughout Hampshire. 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.
Andover school solar, answered
- How much would a school roof near Andover generate?
- Modelled at 915 kWh per kWp a year, a 160 kWp array on a Andover school models at about 146,400 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 Andover?
- It goes somewhere, just not into the timetable. 25.2 percent of the Andover 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 Andover school?
- Applications go to Scottish and Southern Electricity Networks, who run the network across Hampshire. 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 Test Valley 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 Test Valley on siting and design. Listed buildings and conservation areas are the usual exceptions. We put the position to Test Valley before a design is finalised.
- How many schools are there around Andover?
- Test Valley has 56 open state-funded schools and colleges on the DfE register, with 15,841 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.