Specialist solar panels for schools in Welshpool
What decides a solar scheme at a Welshpool school is how much of the output the site uses itself, not how much the roof makes. 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.
25.5% of the modelled year lands in July and August, on a roof that returns 831 kWh per kWp a year. The worked example below runs at 150 kWp, the size applied for at the nearest school scheme on record. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Book a roof survey in Welshpool- 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 Powys
A one kilowatt-peak array on a shallow pitched roof in Welshpool models at 831 kWh a year, from modelled irradiation of 1,061 kWh per square metre in the plane of the array (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). 6 percent below our mean puts Welshpool 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 150 kWp array, sized to what the nearest school scheme on record applied for, 45 miles away at Stafford, models at about 124,700 kWh a year before shading, and needs roughly 446 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 31,800 kWh landing in July and August and roughly 5,500 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.
Welshpool ranks 2 of 6 towns we cover in Powys on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 820 to 838, a spread of 18 kWh per kWp. Within Powys 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 Welshpool
Welshpool and the area around it 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 Welshpool.
Look 45 miles out and there is one: Stafford Manor High School, Rising Brook in Stafford, 150 kWp, applied for by eEnergy Group PLC, 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 Welshpool generation curve
A Welshpool school roof generates most in the weeks its buildings are closed. 25.5 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 14 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 4.4 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 6.9 times as much in June 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.
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.
Inside the day it happens again. The roof is still at three quarters of its peak at four in the afternoon, by which time a Welshpool school is largely empty, so the hours that look best on a generation chart are the worst on a consumption one.
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 National Grid Electricity Distribution pays for the surplus that is left.
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 | 20 | 13 | 7 |
| Feb | 15 | 36 | 19 | 17 |
| Mar | 21 | 68 | 46 | 22 |
| Apr | 12 | 100 | 40 | 60 |
| May | 17 | 116 | 64 | 52 |
| Jun | 21 | 117 | 82 | 35 |
| Jul | 11 | 115 | 41 | 74 |
| Aug | 0 | 97 | 0 | 97 |
| Sep | 20 | 76 | 51 | 25 |
| Oct | 17 | 46 | 25 | 21 |
| Nov | 21 | 25 | 18 | 8 |
| Dec | 15 | 17 | 8 | 9 |
| Year | 190 | 833 | 407 | 426 |
Grid connection through National Grid Electricity Distribution
Connections around Welshpool are handled by National Grid Electricity Distribution, 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 Powys the planning database records 18 solar schemes totalling 39 MW, of which 1 are operational (REPD Q1 2026).
Book a roof survey at your Welshpool school
A survey in Welshpool starts with three things from you. Give us the postcode, the approximate roof area and, if you can get it from your supplier, twelve months of half hourly readings. What comes back is a usable area figure per block, output modelled against your own load rather than an average, and the ways a Welshpool school can pay for it.
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.
Welshpool school solar, answered
- What would a 150 kWp array produce at a Welshpool school?
- Yes, and the figure matters more than the sunshine. 831 kWh per kWp a year puts a 150 kWp array at around 124,700 kWh, on roughly 446 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 Welshpool?
- Less is wasted than governors expect, but the figure is worth seeing: 25.5 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 Welshpool?
- 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.