Specialist solar panels for schools in Altrincham

Solar for education buildings across Greater Manchester

A one kilowatt-peak array on a shallow pitched roof in Altrincham models at 816 kWh a year, from modelled irradiation of 1,046 kWh per square metre in the plane of the array (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). 8 percent below our mean puts Altrincham at the weaker end of the range, which raises the premium on self consumption and lowers the value of anything that leaves the site.

Scaled up, a 220 kWp array, sized to what the nearest school scheme on record applied for, 7 miles away at Salford, models at about 179,500 kWh a year before shading, and needs roughly 653 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 46,100 kWh landing in July and August and roughly 7,700 kWh across December and January. Electricity North West 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.

School solar on record near WA14

No school or college solar scheme appears in the WA14 postcode district in the Renewable Energy Planning Database. That is a reporting threshold rather than a verdict. The database records generating stations from one megawatt upward reliably and smaller ones patchily, and almost every school array is a fraction of that, so a roof full of panels on a Altrincham secondary could be generating today without ever reaching it.

Look 7 miles out and there is one: The Albion Academy, London Street in Salford, 220 kWp, applied for by Barker Associates Llp, 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 Altrincham generation curve

A Altrincham school roof generates most in the weeks its buildings are closed. 25.7 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. May is the strongest single month here at 14.2 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 4.3 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 6.8 times as much in May as it does in December, and August alone outproduces December by about 5.7 to one. 75 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 Altrincham 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 Electricity North West, 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.

Grid connection through Electricity North West

Electricity North West operates the distribution network across Greater Manchester, 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 Greater Manchester the planning database records 118 solar schemes totalling 110 MW, of which 11 are operational (REPD Q1 2026).

Trafford schools, phase by phase

Trafford has 90 open state-funded schools and colleges on the DfE register teaching 42,912 pupils between them. Source: DfE Get Information About Schools.

The split is 63 primary, 19 secondary, 7 special and 1 further education, at an average of 477 pupils a site. Read 3.3 primaries per secondary as a sequencing hint rather than a statistic. A primary is a single survey visit and a modest array; a secondary is several roofs of different ages on one site, and that is where both the area and the complications are.

A trust holding more than one of these sites should look at them together. Grouping the surveys turns the grid question, the funding question and the procurement route into one exercise rather than four, and it usually changes which roof goes first.

Altrincham school solar, answered

Is there enough sun around Altrincham for this to be worth doing?

The model gives 816 kWh a year for every kWp installed at this latitude, so a 220 kWp array comes out at roughly 179,500 kWh a year before shading. It needs about 653 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 Altrincham school waste its generation in August?

25.7 percent of the modelled annual output for Altrincham 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 Electricity North West. We model all three against your half hourly data before an array is sized.

Will the network around Altrincham accept the export?

Electricity North West is the distribution network operator for Greater Manchester. 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 Altrincham?

Usually permitted development covers a roof array on a school, with prior approval from Manchester 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 Altrincham?

Trafford has 90 open state-funded schools and colleges on the DfE register, with 42,912 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.

Nearby

• School roofs in Manchester
• School roofs in Bolton
• School roofs in Stockport
• School roofs in Rochdale
• School roofs in Oldham
• School roofs in Salford

All Greater Manchester locations