Specialist solar panels for schools in Walsall
What decides a solar scheme at a Walsall school is how much of the output the site uses itself, not how much the roof makes. We arrange the roof survey, model the output against the school's own half hourly consumption, and set out the funding routes.
25.6% of the modelled year lands in July and August, on a roof that returns 851 kWh per kWp a year. The worked example below runs at 370 kWp, the median size schools across West Midlands have applied for. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Book a roof survey in Walsall- 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 West Midlands
A one kilowatt-peak array on a shallow pitched roof in Walsall models at 851 kWh a year, from modelled irradiation of 1,090 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 4 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 370 kWp array, sized to the median array applied for at schools across West Midlands, models at about 314,900 kWh a year before shading, and needs roughly 1,099 square metres of clear roof. We use that size because it is what schools across West Midlands have applied for, not because it suits the arithmetic.
Spread across the year that is about 80,600 kWh landing in July and August and roughly 15,700 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.
Walsall ranks 6 of 8 towns we cover in West Midlands on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 839 to 868, a spread of 29 kWh per kWp. Within West Midlands that difference is small enough to ignore: where the building sits is not what decides this scheme, your consumption pattern is.
School solar on record near WS1
The Renewable Energy Planning Database holds no school scheme for the WS1 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.
Look 8 miles out and there is one: Eden Boys Leadership Academy, Alum Rock Road in Birmingham, 0 kWp, applied for by Star Academies, 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 Walsall generation curve
A Walsall 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. July is the single strongest month here at 13.8 percent of the annual total, and it falls almost entirely inside the holiday.
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 5.9 times as much in July as it does in December, and August alone outproduces December by about 5 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 Walsall 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 Walsall 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 | 23 | 15 | 8 |
| Feb | 15 | 37 | 20 | 17 |
| Mar | 21 | 70 | 47 | 23 |
| Apr | 12 | 99 | 40 | 59 |
| May | 17 | 116 | 64 | 52 |
| Jun | 21 | 116 | 81 | 35 |
| Jul | 11 | 118 | 42 | 76 |
| Aug | 0 | 100 | 0 | 100 |
| Sep | 20 | 78 | 52 | 26 |
| Oct | 17 | 48 | 26 | 22 |
| Nov | 21 | 27 | 19 | 8 |
| Dec | 15 | 20 | 10 | 10 |
| Year | 190 | 852 | 416 | 436 |
Walsall schools, phase by phase
Walsall has 119 open state-funded schools and colleges on the DfE register teaching 51,594 pupils between them. Source: DfE Get Information About Schools.
The split is 93 primary, 18 secondary, 7 special and 1 further education, at an average of 434 pupils a site. That is 5.2 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.
Grid connection through National Grid Electricity Distribution
National Grid Electricity Distribution operates the distribution network across West Midlands, 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 West Midlands the planning database records 195 solar schemes totalling 533 MW, of which 3 are operational (REPD Q1 2026).
Book a roof survey at your Walsall school
Lenzie Consulting Ltd arranges roof surveys for schools across West Midlands. 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.
Walsall school solar, answered
- Is there enough sun around Walsall for this to be worth doing?
- The model gives 851 kWh a year for every kWp installed at this latitude, so a 370 kWp array comes out at roughly 314,900 kWh a year before shading. It needs about 1,099 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 Walsall school waste its generation in August?
- 25.6 percent of the modelled annual output for Walsall 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 Walsall accept the export?
- National Grid Electricity Distribution is the distribution network operator for West Midlands. 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 Walsall?
- Usually permitted development covers a roof array on a school, with prior approval from Walsall 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 Walsall?
- Walsall has 119 open state-funded schools and colleges on the DfE register, with 51,594 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.