Specialist solar panels for schools in Lowestoft

School rooftop solar across Suffolk

A one kilowatt-peak array on a shallow pitched roof in Lowestoft models at 938 kWh a year, from modelled irradiation of 1,184 kWh per square metre in the plane of the array (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). At 6 percent above our mean, Lowestoft is at the strong end of the range, and a roof here earns more for every square metre than the same roof would further north.

Scaled up, a 220 kWp array, sized to what the nearest school scheme on record applied for, 39 miles away at Felixstowe, models at about 206,400 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 52,600 kWh landing in July and August and roughly 9,700 kWh across December and January. UK Power 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.

What the planning record shows around Lowestoft

No school or college solar scheme appears in the NR33 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 Lowestoft secondary could be generating today without ever reaching it.

The nearest education scheme on the record is 39 miles from Lowestoft, at Felixstowe: 220 kWp at Felixstowe School, High Street, applicant eEnergy, which holds consent and is awaiting construction. That is someone else's application, not ours, and it is here because it shows what Suffolk planning has already accepted at an education site. Source: Renewable Energy Planning Database, Q1 2026.

The summer holiday problem for a Lowestoft school

25.5 percent of the annual output modelled for Lowestoft 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. May 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.

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 6.6 times as much in May as it does in December, and August alone outproduces December by about 5.6 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.

Across the country the arithmetic settles at roughly 49 percent of output on a session day, against about 71 percent for a weekday business. That figure hardly varies by location, which is why the local numbers that matter here are the yield, the roofs and what has already cleared planning nearby.

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.

That argues for a particular shape of scheme rather than against one. Size to the load that does not stop at the end of term, count in lettings, holiday clubs and summer works honestly rather than optimistically, and then decide whether storage or an export arrangement with UK Power Networks pays for the surplus that is left.

We set out the whole argument about term dates and the generation curve on the home page, and what it does to a payback figure under costs.

Grid connection through UK Power Networks

UK Power Networks is the network operator here, and their answer on export capacity shapes the design. Any commercial array above 3.68 kW per phase connects under G99 rather than G98, and the application fixes what you are allowed to push back onto the network. If the local network is tight, limiting export rarely breaks the case here: most of the generation is consumed on site while the building is working.

Across Suffolk the planning database records 118 solar schemes totalling 1369 MW, of which 23 are operational (REPD Q1 2026).

How many schools East Suffolk has

East Suffolk has 101 open state-funded schools and colleges on the DfE register teaching 29,869 pupils between them. Source: DfE Get Information About Schools.

The split is 84 primary, 12 secondary, 4 special and 1 further education, at an average of 296 pupils a site. Read 7 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.

Questions governors ask us about Lowestoft schools

How much would a school roof near Lowestoft generate?

Modelled at 938 kWh per kWp a year, a 220 kWp array on a Lowestoft school models at about 206,400 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 Lowestoft?

It goes somewhere, just not into the timetable. 25.5 percent of the Lowestoft 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 UK Power Networks, or a sign the array is too big. We test which before sizing anything.

Which network operator handles the connection at a Lowestoft school?

Applications go to UK Power Networks, who run the network across Suffolk. 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 East Suffolk 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 East Suffolk on siting and design. Listed buildings and conservation areas are the usual exceptions. We put the position to East Suffolk before a design is finalised.

How many schools are there around Lowestoft?

East Suffolk has 101 open state-funded schools and colleges on the DfE register, with 29,869 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 Ipswich
• School roofs in Bury St Edmunds
• School roofs in Felixstowe
• School roofs in Sudbury
• School roofs in Stowmarket
• School roofs in Newmarket

All Suffolk locations