How much does a farm roof near Canton generate?

The model gives 936 kWh for every kWp installed here, so 500 kWp comes out at about 468,000 kWh a year before shading losses. A building of roughly 1,485 sqm of clear roof carries it. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

Will the rural network around Canton take the export?

National Grid Electricity Distribution is the distribution network operator for Cardiff. Anything above 3.68 kW per phase connects under G99, and the application sets the export limit. Rural supplies are often the binding constraint, so we ask the question before an array is sized.

Solar panels for farms in Canton

Most holdings around Canton already own the best generating site they will ever have, and it is the roof of the shed they built for something else. What decides a farm scheme here is the state of the roof sheets and the incoming supply, which is why the survey looks at both before anyone sizes an array.

936 kWh per kWp a year at this latitude, so a 500 kWp array models at about 468,000 kWh. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.

Book a roof survey in Canton

Drawing Canton unit

Roof 96 x 62 m

Array 500 kWp

Yield 468,000 kWh/yr

Scale 1:500 / Rev A / Cardiff

Illustrative layout for a unit of this size. Your own figures come from the roof survey.

Canton / Cardiff

A modern steel framed agricultural building with its roof covered in solar panels, tractor and trailer in the yard, fields beyond — Industrial stock of the kind we survey across Cardiff.

Agricultural rooftop solar across Cardiff

What a farm roof near Canton generates

Modelled irradiation at this latitude is 1193 kWh per square metre a year in the plane of a shallow-pitched roof, which works out at 936 kWh for every kWp installed (EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss). That is around 6 percent above the mean across the areas we cover, which is as strong as UK farm rooftop gets outside the south coast.

No solar scheme is recorded in this postcode district in the planning database. On a farm that usually means nothing has been built above the reporting threshold rather than that nothing has been built, because a roof array on a shed rarely appears in it.

FIG. 1 What a Canton roof makes, month by month

Jun produces 6.3 times what Dec does on the same roof. A 500 kWp array here models at about 468,000 kWh across the year, but it arrives unevenly, which is why we size against your summer daytime load and then look at whether storage is worth adding for the shoulder months.

Monthly figures as a table

Month	kWh per kWp	500 kWp array
Jan	24	12,000
Feb	41	20,500
Mar	76	38,000
Apr	110	55,000
May	130	65,000
Jun	132	66,000
Jul	130	65,000
Aug	108	54,000
Sep	85	42,500
Oct	50	25,000
Nov	30	15,000
Dec	21	10,500

Source: EU PVGIS v5.2

FIG. 2 Canton against the rest of Cardiff

Canton936
Pontcanna936
Cathays908
Splott908

Canton ranks 1 of 4 towns we cover in Cardiff on modelled yield, against a national mean of 886 kWh per kWp. The county runs from 908 to 936, a spread of 28 kWh per kWp. Within Cardiff that difference is small enough to ignore: where the building sits is not what decides this scheme, your consumption pattern is.

Bars are zero based, so length is proportional to the figure. Where a county is flat, that is the finding: location is not the lever, consumption is. Source: EU PVGIS v5.2, modelled per town

Grid connection through National Grid Electricity Distribution

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

Book the survey

Send us the postcode

Tell us where the unit is and roughly how big the roof is. We come back with what it can carry, what it would generate against your consumption, and the three ways to pay for it.

Lenzie Consulting Ltd arranges the survey and passes your details to our MCS-certified installation partner so they can quote.

Questions about solar in Canton

How much does a farm roof near Canton generate?: The model gives 936 kWh for every kWp installed here, so 500 kWp comes out at about 468,000 kWh a year before shading losses. A building of roughly 1,485 sqm of clear roof carries it. Source: EU PVGIS v5.2, SARAH3, 10 degree pitch, 14 percent system loss.
Will the rural network around Canton take the export?: National Grid Electricity Distribution is the distribution network operator for Cardiff. Anything above 3.68 kW per phase connects under G99, and the application sets the export limit. Rural supplies are often the binding constraint, so we ask the question before an array is sized.