Specialist solar panels for schools in Neath

School rooftop solar across Swansea

A one kilowatt-peak array on a shallow pitched roof in Neath models at 881 kWh a year, from modelled irradiation of 1,127 kWh per square metre in the plane of the array (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). That sits within a few percent of the mean across the towns we cover, so what decides the scheme is the school's own demand pattern rather than where in the country it stands.

Scaled up, a 410 kWp array, sized to what the nearest school scheme on record applied for, 42 miles away at Barnstaple, models at about 361,200 kWh a year before shading, and needs roughly 1,218 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 90,300 kWh landing in July and August and roughly 17,000 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.

What the planning record shows around Neath

The SA10 postcode district has no education solar entry in the Renewable Energy Planning Database. Almost no school array is large enough to be captured there reliably, so the absence tells you about the reporting threshold and very little about what is already on the roofs around Neath.

The nearest education scheme on the record is 42 miles from Neath, at Barnstaple: 410 kWp at West Buckland School, West Buckland, applicant West Buckland School, which holds consent and is awaiting construction. That is someone else's application, not ours, and it is here because it shows what Devon planning has already accepted at an education site. Source: Renewable Energy Planning Database, Q1 2026.

The summer holiday problem for a Neath school

25 percent of the annual output modelled for Neath arrives in the two months a school uses least (EU PVGIS v5.2). Term ends in the third week of July and the buildings stay largely empty until September. June is the strongest single month here at 14.1 percent of the annual total, which is still term time, and that works slightly in your favour against towns whose curve peaks in July.

The inverse holds at the other end. December and January together return only 4.7 percent of the year, and those are the months with the heating, the lighting and the full timetable all running at once. The roof makes 6.5 times as much in June as it does in December, and August alone outproduces December by about 5.3 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 Neath 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 Neath 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 complete version of the term time arithmetic on the home page, and what it does to a payback figure under costs.

Grid connection through National Grid Electricity Distribution

National Grid Electricity Distribution operates the distribution network across Swansea, 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.

Questions governors ask us about Neath schools

What would a 410 kWp array produce at a Neath school?

Yes, and the figure matters more than the sunshine. 881 kWh per kWp a year puts a 410 kWp array at around 361,200 kWh, on roughly 1,218 square metres of roof. The value of that depends on your term time load. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

What happens to the electricity during the summer holidays in Neath?

Less is wasted than governors expect, but the figure is worth seeing: 25 percent of the year is modelled to arrive in July and August here (EU PVGIS v5.2), against a site running on holiday base load. Lettings, holiday clubs and summer works take some of it, storage takes more, and the rest is an export question for National Grid Electricity Distribution.

Who do we apply to for export near Neath?

Only National Grid Electricity Distribution can answer it for your connection. What we can say is that a capped export limit rarely breaks a school scheme, because the array that suits a school is sized to the term time load rather than to the roof.

Do we need planning permission in Neath Port Talbot?

Often not, because panels on the roof of a school building usually sit within permitted development for non-domestic buildings. The exceptions are listed buildings, conservation areas and arrays that project too far above the roof plane, and larger schemes still need prior approval from Neath Port Talbot. We confirm it either way.